For so long I have wanted ITB's, but the price to get them up and running and the amount of gains per dollar I just cant see.

Ive rescently been thinking about going Inline Pro turbo for my s2000. I much rather get a kit than build my own setup.

Im not looking for crazy HP numbers, I want to stay under 500hp since my car is daily driven. I would be happy with anything in the 380-480rwhp areas.

Of course I would have the car tuned with AEM EMS, and monitored probably with a Greddy Profec BC and HKS TT.

Anyway, is a kit really the right way to go? Im not sure what size turbo I would want. Alot of people are saying to get something smaller than the gt35 because it would just be overkill and lag too much for my needs.

I know I definately want a ball bearing turbo, and I would 100% have to relocate the oil filter for piece of mind. Im assuming I would have to get larger injectors (something over 650's) and run different spark plugs. Also I would have to upgrade the clutch and PP to handle the extra power.

My car is a 2.2liter, so how would the turbo setup perform with the f22c? Also, ive noticed alot of guys run the 3mm head gaskets to lower the compression. What are the pros and cons of this? I always thought the best way to lower the compression was to build up the motor, but their really isnt a need to since the s2000 has forged internals out of the box. The only issue is the compression.

Anyway, if you guys could guide me in the right direction that would be great. Like I said, Im in the thought process about doing this. Nothing is final yet.

 

you already got the general idea it seems. you'll want bigger than 650's though if you want those numbers. you can run a gt30 and get a better powerband, at least my preference..some go for big numbers up top with peakier bands.. really though it's all just a matter of a couple rpm, and rpms go fast on the S.

building up the s2k motor isnt as cost effective as just doing the headgasket, thats why a lot of people do it. definately save up for the headgasket if you want those kinds of numbers.

 

Let me give you a ride in my car, you WILL go turbo after it and you'll see how non-existent "turbo lag" is now-a-days. With that being said, let me try and answer some questions...

As far as my opinion goes, I think the ONLY way to go is inlinepro unless your going for max numbers with the loss of reliability. I know people say full race is good, but they are also 2k more with their stage 3 kit then the inlinepro kit is. Inlinepro will warranty their work, the same as others do, but again warrantys are great when it comes to turbos. When I went down to drop my car off at inline, I got to meet all the main guys there and I say they are all great guys. They all answered my questions perfectly and explained a lot about what was going on. A++ for them in my book.

As far as turbo size goes, it comes down to what you want. I personally choose the GT35R because it will hold torque and HP all the way up to redline. I also DD my car so not haveing the turbo spool up till ~4k saves me on gas in the low revs (turbo won't really spool). I don't consider the dead area from 1-4k rpms turbo lag. Turbo lag is the time your in the powerband with neutral throttle then going WOT and waiting for the turbo to spool. In my case, my lag is under a second. BB turbo's now-a-days are great when it comes to lag because there pretty much is none.

Oil relocation is recommended (I got it), it makes changing the filter a BREEZE. Yes you will need larger injectos (675cc or maybe higher depending on power) and 1 step colder spark plugs are a good idea. I gained 20 horse dyno proven changing out the spark plugs to one step colder this past weekend. You will also need a more powerful clutch (or PP depending on the kit). I went with the stage 3 competition clutch 6 puck. It holds like a beast and is still DD friendly.

Both 2.0 and 2.2 liter engines are great with the turbos. I can't say about the 2.2 liter since I have an AP1 but I'd assume its the same thing.

Pros of lower compression is you can run more boost much more safely. Cons of lower compression would be out of turbo range the car will feel a little more sluggish as lower compression will drop HP numbers (which would be negated by the turbo).


Hope this helps. If you have any Q's or want a ride if your in my area, let me know


Jonathan

 

how do you like that clutch set up?

I was always into the act pp, comptech flywheel and oem disc. I just never got around to doing it yet though.

 

gt30r / discussion

 

not sure, seems like the gt35r ball bearing is the way to go. Youl probably have to play with the wastegate though and run the right spring so it doesn't boost spike.

 

I had the choice of either the act kit or the comp clutch.

The main reason I went with the comp clutch is the puck design. No more can I burn the clutch like I could with the OEM (not that I did it much) and this clutch has a beastly grip. Pop the clutch and wham, instant wheels spin. None of that OEM BS clutch not holding crap. This thing def has the power to hold the turbo's power.

Of course the ACT can hold the power as well but I didn't like the idea of it being basically an OEM organic clutch disk with just an upgraded pressure plate.


As far as the comp clutch goes. Its easily DDable. You must get used to it. With this clutch you need to slip it at 3-4k rpm instead of the stock 2-3k rpms. It won't clutch burn so no worry about how high you rev it. It has a slight clutch buzz, but I can't hear it really over my invidia / bov / wastegate anyway so it doesn't matter.

Overall, I like it a lot. I had mine installed with the turbo kit, it was just more convient that way and I'm glad I did it.

 

IMHO:
I would suggest picking a HP number, and then figure the way you drive. Also think about your budget...
I had a Gt35R, headgasget, and 3 inch exhaust, EMS (great tune!) and made over 450 on a stock 2 liter. As said above the power is very linear, and peaks high in the RPM range. If your not a 8k all day type of guy, the Gt30r and the above stuff should net you in the 400~ range with a broad power band. Just know that it will fall off in the upper rpm range.

Chris

 

I felt the GT30R was a little to small for this engine. Sure it spools about 1000rpms sooner then the 35r but it starts loosing torque midway up the rpm range where as the gt35r holds it all the way to redline.

Its only 1000rpms earlier...in this car that takes what a second to pass


Just my opinion either way is win win when it comes down to it

 

Im a redline all the time type of guy. Not sure if I would continue to drive that way with a turbo though. s2000 is my only car, so I would have to be safe.