I am doing research on turbo kits for my S2000. I want to buy another engine and put new forged pistons that have a compression ration of 9:1. Then add a turbo kit. But I have a few questions

1. Does anyone, like Greddy, make a kit for the S2000.

2. Does anyone know where I can get an exhaust manifold
made.

3. I know that the engine already has great components,
so how much boost do you think I can run.

4. How much horsepower do you think 10 psi and 18 psi will
produce.

5. What problems might I have with the cars computer.

6. Has anyone with a supercharger lowered their
compression ratio.

7. If you have a supercharger did you need to change the
clutch

If anyone can answer one or all of these questions, I would be very happy. My goal is to be able to out run, out handle, and out drive anything I can come across on the street. I think a turbo is the answer.

 

1. Does anyone, like Greddy, make a kit for the S2000.
Not that I've heard of. There are several companies building custom systems, but there are no off the shelf options.

3. I know that the engine already has great components, so how much boost do you think I can run.
Realistically, if you lower the compression ratio, you can probably get away with 10-12 PSI. The engine is an open-block design so it will not handle the extra stress of turbocharging very well. The carbon fiber reinforced cylinder liners, while low friction, are probably not as strong as iron ones would be.

5. What problems might I have with the cars computer.
The ECU can't handle positive manifold pressure. That is the problem that everyone is working around for the Comptech Supercharger. You will either need to work around the problem, or go to a custom computer solution.

6. Has anyone with a supercharger lowered their compression ratio.
The Comptech supercharger is a bolt on. No internal engine work is done.

 

[QUOTE]Originally posted by kuni
[B]I am doing research on turbo kits for my S2000. I want to buy another engine and put new forged pistons that have a compression ration of 9:1. Then add a turbo kit. But I have a few questions

 

I believe there is a Japanese Co. called "Zero-1000" that makes a turbo kit for s2000. From the hong kong tuning magazine i have here it says its good for some 400+hp. Should be sweet but it's still a pretty unchartered terittory for most of us...

 

I was reading a thread started by wanabe and found this website

http://www.atomicperformance.com/feat_s2000.htm

does anyone know who's car this is. The article does not talk about horsepower or give any performance specs. And of course no price is mentioned on what this cost to do the turbo upgrade.

 

Just an observation, but I think you'd be hard pressed to find a Japanese car that's been turbo'd that does not have a built motor... especially when throwing around numbers like 400hp. Their all-out style usually calls for some serious engine building.

 

Top Fuel has a turbo kit for the stook boosting 400hp..
but u can build a custom turbo kit at a much lower cost..

 

[QUOTE]Originally posted by kuni
[B]I was reading a thread started by wanabe and found this website

 

Mingster,

Can you explain what the problem is? I have heard the ECU and the MAP blamed, but I don't understand why turbos would be more difficult to implement than a supercharger.

Thanks,
Tanq

 

Get an Idea of what you want out of this engine, if your going to spend money then you may as well build the whole thing. If you want to go beyond 400hp you may want to go to custom rods, besides pistons. Also you would want to fabricate some kind of deck support to keep the cylinders from deforming. Re-grinding the cams would benifit a change from N/A to Boosted. Use an intercooler/BOV/and possibly a multi stage boost controller. Change your fuel system and get a programable ECU unit such as an electromotive Tech II or someting similar. The nicer ones are direct ignition with 3 dimentional mapping and various accessory controllers(like multi stage boost) Also going higher with your power you may consider a metal head gasket, though difficult to initally seal, they can withstand the greater pressures.
You would surely want the help of a reputable engine tuner to juggle the cam profiles with the staged boost, if not the whole project.

DEFINITELY get a stonger pressure plate w/disc and you may also want a new flywheel. Hmmmm whats after that . . . the differential/axles . . .

[Edited by cmnsnse on 06-01-2001 at 05:09 AM]