I've run a bunch of different cars. This appears to be an S2000 issue. I've built custom Miata kits, and have also tracked an EVO without issue. The Miata's can have cooling issues, but I solved them on mine, so I do have some experience with it. This included sealing all the gaps so the air has to go through the radiator, etc...

The SOS kit looks nice. The Kraftworks gives you almost turbo power, but still has a front mount intercooler. I want to see someone else try it first. That might be the best kit right now.

The Vortech I'm going to use is the T trim. Not the standard kit. It should make very close to the 450HP mark on the built motor.

From what I understand Comptech is working on a Novi 1200 unit as well.

The roots from SOT is also interesting, but since it will not support 12-14 psi it was off my list. I really liked the power delivery though.

I do not argue the turbo can make the most power, and by far has the best power under the curve. It's not lost on me honest, hence the reason I tried it. The heat issues it presents on the track though are not trivial. If I had a lot of time to tinker on it, I think it could be done, but it's not going to be easy, and it will definitely not be "off the shelf" so to speak.

I'm an engineer by trade so take that into consideration.

For now the Vortech will do nicely. My real goal is an LS v8 in a few years...

 

wow, even water cooled and it was cooking... well, looks like for your EXTREME driving, it doesn't add up... someone more street oriented with little track time I would say go turbo... but the concensus on this car is to go supercharger... its more reliable and has been proven dollar for dollar...

Sick setup man, best of luck to you

 

Yeah I was going to ask if maybe this was an s2k ONLY problem, because hell look at all the evos / wrx / stis running around on the tracks without cooling issues. The only car I heard of heat problems was the 335i that shipped without the oil coolers.

Maybe a larger radiator + oil cooler + a water / oil transfer evaporator box so your oil temps and water temps stay closer together and with the larger radiator, some more heat would be put and taken away on the water part of cooling.

 

I'm sure you've done the upgraded oil cooler squirter's since you have an 01 so you have the oil squinter's which honda changed? Also you ran -10 lines or even better -12 AN lines in your set-up to not only add oil quantity but flow? I'm sure you also used a very large oil filter knowing that the S2000 in N/A form has higher than normal oil temps, so if a normal car needs a regular size oil cooler, then a turbo s2k would need a LARGE oil cooler.

I don't know your set-up, but there are two local turbo s2k's that track there cars a lot, and when I had mine I had no problems as well.


Its all in the set-up. Be more specific on oil cooler placement, size, size of lines, and such. The problem is with YOUR PARTICULAR CAR, not with the car being a turbo.

Did you eliminate the factory water oil cooler where the filter is located?
Do you use the trick of running straight distilled water with water wetter trick like most of us do? I know my coolant temps drops 20 degree's with that mod, which then in-turn dropped my oil temps.

DON'T THROW THAT TURBO OUT YET. People are running turbo's successfully so lets find out where the problem lies WITH YOUR SET-UP.

J. R.

 

Is it possible that the aluminum block motor in the S2000 does not dissipate heat as well as an iron block motor (like the EVO, Sti, etc...)?

I dunno...

 

Aluminum transfers heat much faster than cast iron.

 

although I think the evo / sti motors are aluminum as well (at least not cast iron)

 

You're right, the new Evo and Sti motors are aluminum...the old Evo had an iron block, I know that.

 

Just to answer JR's questions.

Filter is a remote CR racing filter. Same one I ran on the Ultima GTR. Should be plenty.

Using -10 Lines

Engines are an 2003 2.0L and a 2.2L

Factory water/oil cooler was eliminated, but I'm not sure that was a good thing.

SCCA requires water only (water + water wetter).

The turbo is now on Faukengenius's car and was started today. I seriously doubt there are cars out there being driven as hard as I do for 30 minutes solid at high boost. It's not that I couldn't get the car to run, it's just the oil is too hot. The cars running in Austraila have broken just about every part imaginable, best I can tell. It looks like their finsih rate is about 50%? I need to be able to finish each race. If I have a 50% finish rate, that's no good. If you replace the engine every 4 events, then I guess the oil temps might be ok.

To date I'm pretty sure no one has sucessfully ran a turbo car for long term with high boost. MSM tried it, but the sold the car shortly after completing it. It's new owner has been battling temp issues, and has not resolved them.

CBender had a go at it, and spent a fortune and didn't get there either.

I can give you three names that tried and decided it didn't work. It's not just my car. There is a pattern. I can only find one person tracking the car in Australia, and I havn't seen him pipe up.

Bill

 

have you tried doing a V mount setup? That would allow full cooling to the radiator and to the intercooler.