Hello all,
I am new to the world of the S2k but have been around cars for quite some time now. I have/had a Mitsubishi GSX, which unfortunately blew up. So know I have the task upon me of picking up a new ride. I have liked the S2k since their prototype days, and am pleasured to have the opportunity to finally purchase one for myself.

Ok here is my question, having come from a turbo import, I would like to eventually turbocharge my soon to be S2k. The car is a 2002 with 12000 miles on it. I have heard that the motor is fairly sturdy, but with sickly high compression, would just a thicker headgasket lower the compression enough to possibly handle a turbo, blowing conservative boost levels (15lbs)?

Thank you very much guys and gals!

Oh yeah, as for lightweight flywheels, which would you all recommend?

 

I know EXACTLY how you feel. I traded in my 1997 GST for my '03 S2K. Some advice... Just get some lower compression pistons made. (i.e. JE pistons) The headgasket route is the cheap and dangerous way out. 9:1 Would be my advice for the pistons. If anyone disagrees, feel free to say so. Although, VTEC is kinda like turbo, that's why I can't wait to hit it! I don't have enough miles yet. I will put a turbo on this car though. You can't seem to drive a turbo and go back to N/A without dissapointment. The S2K however, is the exception. Go for the S2K, you won't regret it. I just hope your wallet can handle the cost of turbocharging. It's well worth every cent though

 

First, turbo is not smog friendly for this car. Why lower compression to get more boost? higher compression can give you the same results with less boost and better low end.

conservative boost in a N/A car is NOT 15 lbs. This car is 11:1 to start with. 7 pis has been claimed to be safe and gives you apx a 50% increase in hp. If you want to increase from there, instead of lower compression, you're better of going with a stand alone computer so you can control your retard, and fuel. Why drop to 9:1 only to have to increase boost to be at the same point? But if you want to rebuild the bottom end (thta'll run you apx 3-4k)

You're "conservative" 15 psi with a stand alone EMS in the car would probably yield you in the neighborhood of 400 rear wheel horse power!

That's great power, however, nothing is for free. After you get a great deal on a turbo for 4 k, install it yourself, then get an ems for 1k and tuned for about another k.

You'll probably want to upgrade your clutch instead of changing it every few weeks. Work up the rearend kryo treat the gears. CV joints should use some help too. going with lower end rear gears might help save some miles on the drive train too (4.44's for about 700 from ricks plus install). How's that tranny doing under load after 10k miles? That much power you should replace most of the drive train within time.

YOu got a 50k monster by the time your done! Should've bought a used NSX.

Depending on how you drive it that is... and I doubt you'd want 400 hp and gobs of torque for gentle drives to the store.

It's a great car, but get it for what it is. This isn't a supra where you can bolt on 600 hp and still be a daily driver. Furthermore, everything on this car is expensive.

 

Another GSX convert here. I had a 99 GSX pushing about 400+hp, just got rid of it last month. The car was giving so many problems it was ridiculous but it was all worth it. I think the S2000 is a nice trade up just have to get hold of one, still looking.

 

If you dont plan on going standalone and staying with stock internals I would say stay @ 5-6psi tops. However 5-6 psi on these cars feels like 10psi on most
They feel very strong, they key is to say with something simple and be content with it..............well unless you have gobs of money to spend and dont plan on daily driving the S

I am not one to crack open motors and get right to beefing them up.....why not work with what you have and run a nice low boost setup

 

I have been around turbo cars for so long, that I forgot what turly "conservative" boost might be. Thank you for the words of encouragment.

 

[QUOTE]Originally posted by S-2-Thousand
[B]I have been around turbo cars for so long, that I forgot what turly "conservative" boost might be.

 

more like 7-8psi is safe on our cars from what i know. and that its equal to at least 15-17 psi on most turbo cars with lower compression. Beef up the internals, only lower compression if you are looking to go more than 15psi being that 7-8 with our compression might yield the same results.

 

YOu got a 50k monster by the time your done! Should've bought a used NSX.


i might add that some of us maybe just like the challenge and rewarding feel of acomplishment of something that is not easy. Anyone can buy an nsx and ferrari pending funds are there. To build a car to do what is trying to be done here takes BALLS

not flamming but stating my point of view.

 

While I agree that a used NSX is a great car, even a low boost setup on the S2000, like Spool, UR, or speedcraft will put the car at around 300 rwhp. That is a lot more power than a used NSX.