Turbo or Supercharger?

[MileHiGSR]

First off I'd like to just say that I know I'm not nearly as technically inclined with cars as most of you on this site. That is why I'm turning to everyone here for advice. That being said, here's my issue...

I have a '95 GSR with 115,000 miles on the engine. I have done the basic bolt ons (AEM CAI, DC 4-1 headers, Greddy SP Exhaust, cam gears and pulleys coming soon) and can pull a 16.1 @ Bandimere, but I've decided at this point that that's not enough.

I've saved up a little cash and I'm pretty sure I'm going to go with some form of forced induction, probably this spring. I've narrowed it down to either a Drag III or a JRSC. Now, I know basically nothing about turbo/blown cars so I'm looking for any kind of advice anyone here can offer. Are there going to be a lot of reliability issues with either? As far as I understand, the JRSC is normally more reliable, but have been told the turbo should be just as reliable as long as I keep it below 10psi. I don't really have a whole lot of extra money to be building the block. Any advice on how I can keep the stock bottom end and keep it reliable? Or is that pretty much shot because of the amount of miles on my engine? Also, what kind of fuel system/ecu/ignition upgrades can I expect to need? Any other upgrades necessary? What kind of setup would I need to invest in to break into the 14's?

Also, I'll probably need a shop to install this, so are there any recommendations there? Any advice would be appreciated. Thanks. :D

[Brian]

From my experiences once you slap on a turbo, plan on a motor rebuild at some point soon. They seem to put a lot more stress on the motor than the supercharger. I've been running 10 psi for around 8 months and over 2 years at 6 psi with 0 problems. I have minimal invested in the car, and it runs great. The kit cut about two seconds off of my 1/4 mile times on street tires.

14's would be pretty easy with the basic kit and some drag radials. Definetly a sure thing with 10 psi. As for fuel system upgrades. You will probably want to get a fuel pump. From there you can either get a map controller or zips boost controller which also has measures built in to eliminate tip in detonation. I would highly reccomend you keep the stock honda ignition as most aftermarket units seem to cause more problems than they are worth. We've installed 4 superchargers on Honda's so far so keep us in mind if you need an install party....

[TedR719]

With that many miles and not planing on building any internals I would go with the JRSC.

[MileHiGSR]

Originally posted by 99SIVTEC
From my experiences once you slap on a turbo, plan on a motor rebuild at some point soon. They seem to put a lot more stress on the motor than the supercharger. I've been running 10 psi for around 8 months and over 2 years at 6 psi with 0 problems. I have minimal invested in the car, and it runs great. The kit cut about two seconds off of my 1/4 mile times on street tires.

14's would be pretty easy with the basic kit and some drag radials. Definetly a sure thing with 10 psi. As for fuel system upgrades. You will probably want to get a fuel pump. From there you can either get a map controller or zips boost controller which also has measures built in to eliminate tip in detonation. I would highly reccomend you keep the stock honda ignition as most aftermarket units seem to cause more problems than they are worth. We've installed 4 superchargers on Honda's so far so keep us in mind if you need an install party....

Is 10 psi on a JRSC going to be safe on a 115,000 mile engine? What shop are you with? You're in the Springs, right? Can you e-mail me a quote for install and how much a 10 psi pulley would be @ jacob_gasewicz@jdedwards.com? Thanks for the info.

[Brian]

I've seen 10 psi run on engines with more miles. It shouldn't be a problem as long as its tuned properly. I actually own this place along with haiparts.com . I'll get a quote out to you asap :)

[2000SiVTEC]

Turbo=blown engine. It has happened to almost every turbo honda I have seen or heard about. I personally love my JRSC and I would reccomend one to anyone. As far as reliability goes I can vouch for Brian, I cannot think of a single problem he has had with the kit in 2 years. I say go JRSC or you will probably be spending the money in the near future to rebuild your engine.

[quiksan]

is there any kind of custom super charger kit that I can put on my 94 accord ex (f22 engine) that anyone knows of? I've been planning to turbo my car, and just run like 6 or 7 psi, and then eventually build up the rest.
BUT would prefer to supercharge, if there's any possible way. I know there's no JRSC for my accord's f22, but didn't know if there was something like a custom option out there...

thanks for any info guys.

:confused:

[V8SpankR]

Originally posted by 2000SiVTEC
" I personally love my JRSC"

Awwwww......only two days and your already saying "love".
You're too easy. hehe:D :D

[CSMsi311]

I have also had my JRSC on my car for over 2 years. It hasn't nearly been run as hard as Brian's car, but it is also untuned. The dealership i bought my car from installed the SC when I bought the car new. I'd recommend getting it. I "love" :D mine. It is nice to have some torque. My roommate has a stock Si and I think it is slow. My car is much more fun to drive, don't even have to race all the time to enjoy it.

Jason

[DragIIISi]

Come on guys... Turbo with good tuning equals:D

[2000SiVTEC]

Originally posted by DragIIISi
Come on guys... Turbo with good tuning equals:D

What are you talking about dude? You know how many times I took you down N/A on the street and at the track:rolleyes: ;) LOL

[newt2]

Originally posted by DragIIISi
Come on guys... Turbo with good tuning equals:D


OK Mr. Rebuild. :D

Turbos are great but it's not a wise idea to do it without building the motor first. There are guys out there running impresive times on stock blocks, but 99% of them are pros who have the knowledge and equipment to keep the car tuned well all the time (take the E-SPEED cars down in the springs for example). For an amature enthusiast who's just getting started I don't think a turbo is a smart idea if you don't have 7 or 8 grand to spend on the kit and build up.

[john]

Yes. Turbo plus fuel == :D , turbo plus fuel plus tuning == :rofl: :D :rofl: :eek:

[Mark_H]

Well it looks like I'm one of the very few Turbo Proponents on this site. I love turbo, they are simple, easy to install/Remove, produce great gains and are easy to maintain. If your NOT BOOST HAPPY, then turbocharging a stock Honda/Acura motor is extremely safe and won't require a rebuld after a few months like a lot of people will tell you. I have turbo's two Honda's, '98 Civc EX automatic, 7lbs of boost, 6000 absolutely trouble free miles, same miles with a '00 Si, 6lbs trouble free. Simply maintain a good air-fuel ratio, don't overboost and your fine, and your fast too.
My '00 Si, w/ 6psi(w/ a slight jump to 7psi at VTEC drossover) of boost though a tiny tdo4h turbo I ran a 14.99 at Bandimere on the shitty stock michelin tires, full interior too. I don't think JRSC equipped Si's w/ stock EVERYTHING else run near that time, closer to mid 15's if I'm not mistaken.(atleast thats what two guys from near me run)
HTH
M

[SC-MECHAM-WS6]

SC

[V8SpankR]

If your only gonna pump 6psi out of a turbo you might as well run 8-10psi on a SC. You have near full boost at just off idle where the turbo won't build full boost till 3000+ rpms. You can run about 290 crankhorse with an SC which is near the limit of stock B16s and B18s.

[2000SiVTEC]

Actually Brian ran 15.1's at Bandimere on 6 psi no problem.....and that was witha a stock clutch and stock Si tires....

[Brian]

Originally posted by 01ITR#700
Well it looks like I'm one of the very few Turbo Proponents on this site. I love turbo, they are simple, easy to install/Remove, produce great gains and are easy to maintain. If your NOT BOOST HAPPY, then turbocharging a stock Honda/Acura motor is extremely safe and won't require a rebuld after a few months like a lot of people will tell you. I have turbo's two Honda's, '98 Civc EX automatic, 7lbs of boost, 6000 absolutely trouble free miles, same miles with a '00 Si, 6lbs trouble free. Simply maintain a good air-fuel ratio, don't overboost and your fine, and your fast too.
My '00 Si, w/ 6psi(w/ a slight jump to 7psi at VTEC drossover) of boost though a tiny tdo4h turbo I ran a 14.99 at Bandimere on the shitty stock michelin tires, full interior too. I don't think JRSC equipped Si's w/ stock EVERYTHING else run near that time, closer to mid 15's if I'm not mistaken.(atleast thats what two guys from near me run)
HTH
M

Best time stock tires, stock clutch, full interior, and 5-6 psi was a 15.032. I ran probably 30 or so 15.1's as well :)

[V8SpankR]

Newt2 ran a best of 15.1 with the 5psi kit on his Type R with full interior,stock clutch,16 inch wheels and in need of a good tune job. Mostly he ran in the 15.2-3 range.

[Mark_H]

Hey Brian,
Out of curiosity, weren't you running exhaust, intake and some kind of fuel controller VAFC or the like?
M

[Brian]

Nope, when I ran the 15.032 I had stock exhaust. I do have an AEM intake which is terrible for a supercharger, but no form of fuel controlling yet. I wish I had a VAFC. Now I have exhaust, but still the stock exhaust manifold....

[john]

Why is the AEM intake not a good thing for a supercharged car?

Educate me please. :)

[newt2]

Originally posted by john
Why is the AEM intake not a good thing for a supercharged car?

Educate me please. :)

Too low of an intake velocity. The AEM is actually more restrictive than a shortram, the restriction is just more than offset by the cool air in an NA car. It's great for getting cool air but the compressor is just going to heat it back up again, so that benifit's lost in a FI application.

[Brian]

I like the straw analogy. Does it require more effort to suck through a huge short straw, or a long thin straw? I have mine setup as a short ram for winter right now, but the diameter of the tubing is too small for FI apps. I think the AEM's are only 2 1/4 inch or 2 1/2 inch. Here soon I will probably buy a nice short 3 inch intake. Steve has a short ram injen 3 inch on his, and you can definetly tell the difference.

[V8SpankR]

Pat has the JR intake on his and you really can hear the charger really well.

[Brian]

Yeah I was amazed at how loud Steve's supercharger was when he would be standing still and just rev. Mine doesn't really make any noise, but his was real loud....

[exciv2000]

FWIW, I would get a 3" Injen Shortie and get the corresponding 3" Cold Air Extension. I've had a 3" short ram, and to be honest, the 3" Injen with CAE seems to run better and quicker on my SCd civic. And contrary to newt2's opinion, the SC yes does heat it up a bit more, but the cold air far offsets the heat the blower creates, particularly in this cold cold weather. But even on warm days there is a noticeable difference in manifold heat with the 3" CAE. Anything smaller than 3" is not even worth putting on an SCd car.

Also, if you want to spend the money, you have the option of getting a comptech icebox provided you have an SI or GSR (Maybe even ITR applies), but they are quite expensive.

At this point tho, anything is better than that small AEM.

[Absubtle1]

Well, AOL sucks, this is my second time typing this. But here we go again. I just finished installing a Drag III kit on a 00 Civic SI. The kit was a joke. The intercooling piping had to be modified, among other things..
http://www.imagestation.com/picture/sraid28/p558a65fb17bb76cd0cde2e4a38e75aea/fe13ce50.jpg

More in next page, AOL is not liking me.

[2000SiVTEC]

This is what I hear about drag kits. THey are of very poor quality. Sure they make big power, but who cares if you don't have all the necessary parts and to top it off they have zero cutomer service.....

[Absubtle1]

Yeah I had mentioned that in my first round, however, that has been lost.
Saying as a tuner and as an installer, the turbo I put on the stock Si was way too big. Let's just say at 5500 rpm, it was producing only 3 psi at manifold. I was testing w/ vacuum gauge at manifold. Terribly, spool up started at 3800 rpm and didnt reach positive displacement until 4200 rpm. As the turbo was finally spooled, it took to about 7200 rpm before boost would hit 8 psi. Which was alittle higher than I would like on stock motor. But it was hard to get it to that low of boost.
I had to modify every one of the pieces of intercooler piping, except for 2.
I like the potential of the Drag Kit but not for low (lower) boost situations.
I have installed Greddy Kits and they are a walk in the park compared. Night and day difference between the two.
But then again, I have dynoed a Supercharged Si and a turbo'd SI, both pushing 6 psi. Supercharged SI produced 60 HP (average) less than Turbo. SO, right there is proof of the parisitic drag related to superchargers.
Needless to say, YEP, get a turbo and not a Drag Kit!

[Absubtle1]

http://www.imagestation.com/picture/sraid28/p7edfd33501a9f7924d9122614080d914/fe13ce4f.jpg

[Absubtle1]

http://www.imagestation.com/picture/sraid28/p1eea7e8e2867bb6878a2c16dfa3f781d/fe13cf3d.jpg:Beer:

[Brian]

Originally posted by Absubtle1
Yeah I had mentioned that in my first round, however, that has been lost.
Saying as a tuner and as an installer, the turbo I put on the stock Si was way too big. Let's just say at 5500 rpm, it was producing only 3 psi at manifold. I was testing w/ vacuum gauge at manifold. Terribly, spool up started at 3800 rpm and didnt reach positive displacement until 4200 rpm. As the turbo was finally spooled, it took to about 7200 rpm before boost would hit 8 psi. Which was alittle higher than I would like on stock motor. But it was hard to get it to that low of boost.
I had to modify every one of the pieces of intercooler piping, except for 2.
I like the potential of the Drag Kit but not for low (lower) boost situations.
I have installed Greddy Kits and they are a walk in the park compared. Night and day difference between the two.
But then again, I have dynoed a Supercharged Si and a turbo'd SI, both pushing 6 psi. Supercharged SI produced 60 HP (average) less than Turbo. SO, right there is proof of the parisitic drag related to superchargers.
Needless to say, YEP, get a turbo and not a Drag Kit!


Not trying to be a jerk or anything, but what turbo kit at 6 psi of boost produces 60 more hp than a supercharger kit at 6 psi? Maybe if you are comparing a Boosted SI to a civic HX :rolleyes: . Yes there are parasitic loses, but not nearly that much. In fact at 6 psi most superchargers produce almost identical numbers to turbo's of the same boost level assuming identical cars.

[Absubtle1]

Perhaps I was wrong w/ the HP readings at six PSI. Monday, I will look through my dyno sheets and see what the cars were pushing and what kits...

[Brian]

I've seen probably a hundred or so dyno;s from both turbo and SC SI's at low boost. The Jackson kit usually puts down between 190 and 210 depending on tuning at 6 psi, and the turbo kits are putting down about the same numbers. A guy in denver was putting down 204 to the wheels on a drag kit at 7 psi. Another with a greddy kit was around 19x at 6 psi. It's all pretty relative untill you up the boost above 12 psi or so. The lack of intercooling starts to catch up with the Jackson charger at that point and the numbers drop off. Better yet though compare a 6 psi to 6 psi dyno rpm to rpm. The supercharger makes FAR more power from 2000 rpm up untill almost redline where the turbo will finally spike higher.... Again this is all assuming low boost for both applications...

[Absubtle1]

Very good points. And a lot of the difference between can be compared w/ tuning or lack there of.

Something that strikes me funny, 1) acc. underdrive pulleys and 2) cutting P. steering belt for more hp.

[MileHiGSR]

I've been discussing with a local shop as far as what to expect from a turbo vs. a supercharger. They seem to be mostly pro-turbo and against supercharging. They indicate they've had trouble with a few JRSC's breaking (they are not the one's installing these). The owner said a couple were as bad as the screws meshing and metal being sucked into the intake manifold. They are a big proponent of Rev Hard turbos. They said since I run 16.1 right now, that I should have no trouble getting high 13's with 8 psi of boost and mostly stock fuel system. Can anyone validate any of this info? I've had several things installed at this shop and had no problem. I just wanted to see if this is similar to anything others have experienced. Thanks.

[Brian]

Well i've heard of a lot of turbo's having trouble sucking metal into themselves, but no superchargers. I have yet to hear of one breaking. Cutting 3 seconds with 8 psi isn't going to happen either. On 8 psi you can hit a high 14 with tuning i'm sure, but no way a 13 up here. Rev hard is a good kit. Once you get a turbo kit though plan on the cash for a motor rebuild because it's going to happen sooner than later. Then you need a standalone or at the very least a s-afc and all those goodies. I don't know what wastegate the rev hard comes with, but some of them have boost spikes that are pretty nasty. You just have to decide if you want reliability I guess..

[MileHiGSR]

Originally posted by 99SIVTEC
Well i've heard of a lot of turbo's having trouble sucking metal into themselves, but no superchargers. I have yet to hear of one breaking. Cutting 3 seconds with 8 psi isn't going to happen either. On 8 psi you can hit a high 14 with tuning i'm sure, but no way a 13 up here. Rev hard is a good kit. Once you get a turbo kit though plan on the cash for a motor rebuild because it's going to happen sooner than later. Then you need a standalone or at the very least a s-afc and all those goodies. I don't know what wastegate the rev hard comes with, but some of them have boost spikes that are pretty nasty. You just have to decide if you want reliability I guess..

I don't remember what kind of wastegate was mentioned. He did say they don't have trouble with boost spikes on the Rev Hard. He (the owner) also stated a Profec B boost controller would eliminate any chance of that. I am still partial to getting a superchager, mostly because of the cost, but am still trying to collect as much info as I can. Maybe I should just sell my car and buy an S2000 or something...:rolleyes:

[Brian]

Yeah it's a tough decision. Either way you will definetly be happy. I'm biased, but then again I have reason to be. I've raced for two years on my car with the supercharger running it hard as hell and haven't had a single problem. No broken parts, no extra expenses, only maintenance has been tightening the belts a couple times a year. Show me a turbo Honda that is still running that can say the same.

[newt2]

They are a big proponent of Rev Hard turbos. They said since I run 16.1 right now, that I should have no trouble getting high 13's with 8 psi of boost and mostly stock fuel system.

I really doubt it, at least from what I've seen at the track. Mid 14's aren't out of the question though. If you strip it out maybe, but who wants to do that? Some of the shops tend to be a little unrealistic in telling you what to expect I've noticed. Another guy I met had a shop tell him that his Prelude Si would run 12's with just a turbo kit and no motor rebuild or fuel control or anything. No way, OK maybe once then BOOM!

[Bedlam]

Originally posted by newt2
. Another guy I met had a shop tell him that his Prelude Si would run 12's with just a turbo kit and no motor rebuild or fuel control or anything. No way, OK maybe once then BOOM!

Well...at least they know they will get you back in there for some more business if you blow up right? :)

-Bedlam

[MileHiGSR]

Brian-

Any chance a meeting can be arranged so I can see or ride in your car?

[Brian]

Of course. I'll let you take it for a spin anytime. Just message me or something, and we eill figure out a time that works for both of us...

[MileHiGSR]

If I do end up choosing a turbo as my boost of choice, is the general concensus to not get a Drag III? Any info specifically on the Greddy or Rev Hard kits?

[TedR719]

IF you get a turbo build you block...rods/pistons ($1000) and then the kit ($3xxx) then make sure you have fuel and don't turn the boost up to high (daily driving).

I wanna get a turbo kit so bad but there is other things that I would like to enjoy in life other than my car...

If you got the money go turbo :) just make sure you do it right!

With a JRSC GSR I think you would see 14's all day but don't expect to see consistant 13's without some serious tuning,more boost,or NOS.

SC= low mantaince,smooth powerband,low end tq

Turbo= faster times,most power

[Bull]

Originally posted by 99SIVTEC


Not trying to be a jerk or anything, but what turbo kit at 6 psi of boost produces 60 more hp than a supercharger kit at 6 psi? Maybe if you are comparing a Boosted SI to a civic HX :rolleyes: . Yes there are parasitic loses, but not nearly that much. In fact at 6 psi most superchargers produce almost identical numbers to turbo's of the same boost level assuming identical cars.

The problem is that you aren't accounting for the CFM ratings of the turbos and superchargers. PSI ratings are pretty useless when trying to figure out the max HP increase. For example, a large turbo/supercharger boosting at 6 psi will flow more air than a smaller turbo/supercharger with the same amount of boost. Think about it, those guys with turbos who blew their engine probably either ran too lean or overboosted as turbos reach their max effective boost at much lower rpm than the centrifugal superchargers.

Remember, there is a good reason why turbos are banned from Top fuel drag races.

[newt2]

It's not that much of a difference. Even the advertised ratings, which are always higher that you actually get, put the DRAG turbo kit at 275whp at 9psi (they usually get around 260 when tuned right). That's with a T3/T4 compressor, a big one. Jackson kits on a gsr are known to get about 220whp at 6 psi (advertised at nearly 230whp).

That's a difference of about 40whp while having to run 3 more psi to get it. No way is someone getting 60 more ponies to the ground on the same boost level without some serious "other mods" to go along with it (upgraded valvetrain, 9k+rpm powerband, standalone ECU...).

[Brian]

Exactly. Yes the size of the turbo matters, but come on. We're talking 6 psi to 6 psi.

[1FAST4]

I would give a $100 to the person that could take an internally stock turbo'd GSR at 6 psi and make 60 more ponies than a JRSC'd GSR at 6 psi.

As far as the turbo vs. SC argument, it all depends on your preference. What do you want out of your car? You are going to get more peak power out of a turbo. Not 60 more horses, but more nonetheless. It's driven off of spent exhaust gasses and it is intercooled. It's also a centrifugal style blower, therefore it is going to be more efficient. However, it's peaky torque/hp curve is not going to make for as friendly of daily driver. A JRSC will put down a strong, flat torque curve and a more consisitant hp curve making it a better daily driver. What you need to do is some research on your own, ie dyno charts and multiple professional opinions. You can't just base your decision on a few peoples opinions. Everyone is going to tell you what they think you should have not what you really want. And as far as the reliability factor, they are both forms of forced induction, therefore they run the same risk of internal motor damage. Your motor damage is going to come from improper tuning not the form of F/I you use. As long as you keep it around 8 psi or less you should be fine, assuming the condition of your motor is good. I would suggest doing atleast a compression test and probably even a leak down.

[Bull]

The reason why I responed to this post is that I hear comments like "Everyone who used the turbo blew their engine". I'd say that they blew their engine because they were making more power than the engine can handle, not just because they were using turbos. So lets say that there are two identical engines (with same fuel setup and etc.) and engine A has a S/C kit running at 6 psi and engine B has a turbo kit also running at 6 psi. If engine B gets trashed, chanced are that the setup on the engine B was flowing more air at the same pressure.

Now I do doubt that the turbo kit that's mentioned here would give 60 more HP over the S/C kit at the same boost on the stock internals as the stock motor already comes with fairly high compression pistons and cramming more air in there will just raise the dynamic CR more, thus limiting the amount of boost.

[Brian]

I totally agee with you bull. The problem that most honda guys face is that the turbo kits for our cars are just not up to par. Each kit has it's own problems as far as cheap wastegates that have boost spike problems, to poor or no fuel management. They are geared to be inexpensive, and most people think they are "complete kits" that they can jusst bolt on and pust 6 or 8 psi on. The jackson racing kit is not perfect either, but its way more reliable in comparison. I agree that when setup properly a turbo car can be just as reliable as the supercharged car, but the cost would be quite a bit higher to start. I hope you get where i'm coming from. I don't want people to think that i'm bashing turbo;s in general, mainly just the honda "bolt on" kits..........

[1FAST4]

I am not trying to cause trouble or anything, but I don't see how these turbo kits, such as Greddy and Drag III, are so unreliable. I have seen many cars have great success with these bolt-on kits and run very reliably at 8 psi. I am personally partial to a positive displacement blower, such as the JRSC, but I still see these turbo kits as a good alternative.

[1FAST4]

BTW, can someone explain these new bars.
<--
<--

[john]

I don't think it's the turbo kits themselves which are unreliable, but more likely it's the motor they are bolted up to. Without some internals, fuel, air, ecu mods etc just slapping a turbo onto a car and turning up the boost is a pretty tried & true method of burning holes in your pistons.

:)

[Brian]

Originally posted by john
I don't think it's the turbo kits themselves which are unreliable, but more likely it's the motor they are bolted up to. Without some internals, fuel, air, ecu mods etc just slapping a turbo onto a car and turning up the boost is a pretty tried & true method of burning holes in your pistons.

:)

That was my point. These kits do not come with any sort of fuel management which is absolutly necessary.

[1FAST4]

I just must be spoiled. Speed Craft fabricates their own kits for almost every make and model car. And their kits include everything. Some of the badest cars in the country come out of that shop. When you purchase one of their kits, and have it installed on site, it won't leave the bay without hours of proper dyno tuning. The owner Todd has a custom fabricated triple rotary RX-7 that puts down over 600whp on pump gas!! They also have a 99 Lexus GS300 with one of their turbo kits that puts down around 500 whp. Their a little expensive, but there is a reason for it. Import tuner ranked them in the top 5 for best import performance shops in the country. If you have any turbo questions they can answer them for you. Their web-site is www.speed-craft.com

[SC-MECHAM-WS6]

boost is gay anyways...:rolleyes:

[exciv2000]

Originally posted by 1FAST4
They also have a 99 Lexus GS300 with one of their turbo kits that puts down around 500 whp.

:bounce: I want one! :bounce: those GSs are phat, with a fat price too :cry:

[Tsunami]

my mom actually has a 99 GS300, same motor as the Supras used to have, imagine a TT GS300 :eek:

[V8SpankR]

Originally posted by Tsunami
my mom actually has a 99 GS300, same motor as the Supras used to have, imagine a TT GS300 :eek:

I have an issue of Turbo that has a single turbo on an SC300 and it runs a 10.89 with full leather interior. It looks like a stock except for the wheels and bigger exhaust tips.

[john]

This one?

http://www.turbolexus.com

:)

[V8SpankR]

Actually it's a different one. This one is from Florida and is putting down 460hp and 431ft lbs of torque to the ground. That's about 50 more ponies than that other one. This one is a single turbo setup using a Mitsubishi TD07-25G-14cm turbo running 22psi. The bottom end is still stock with the head being the only thing removed to lower the compression from 10.0:1 down to 8.5:1. The turbo setup is from Toyomoto,they did all the work along with the swap of a 6 speed tranny from the Supra.
His best time was a 10.94@123mph.

This car is nearly the ultimate sleeper.:)

[CSMsi311]

damn. very impressive... that would be fun to have to screw around with vettes and vipers

Jason