I am an ebay fanatic, and I sell and buy off ebay. I've often searched for a turbo kit/turbo parts for my 2003 S2000. I've found a guy thats really nice and always responsds to my emails. He makes and sells P-fab manifolds for S2000's. He claims (because I've never seen) downpipes and dump tubes as well. the manifold was 375 plus 25 shipping. he quoted me for the manifold, downpipe, and dumptube 750ish plus shipping. Which isnt bad at all. the manifold is a log style, which allows the AC, Battery, and Oil Filter to STAY STOCK no MODIFICATION NEED!! which I like! simplisity is great. I dont want killer HP, but 275 to 325whp is my goal. Any info would make me happy. Here is a picture of it below.

 

For your goals it will suffice. But in general, log style manifolds have the poorest efficiency of all the manifold designs.

 

yes that is generally true, but for that much of a power goal are you really willing to spend an extra 400+ to get the exact same power with only 1 psi less.....

-James @ JG-Fab.com/BmCRace.com

 

its comparible to the Revhard manifold with the design style. However with this manifold its top mounted allowing no oil filter relocation nor AC removal nor battery relocation. However I am not sure if the fuse box must be moved.

 

Fuse box will need to be mounted at a 90degree from stock position

 

I'm deciding if I want this manifold or the bottom mount RevHard for my F20C AE86 turbo project.

Your power goals are just about the same as mine, what are you thinking about using for your turbo? I know most people reccomend the GT3071R, but I really didn't wanna spend $1300 on it.

What's a good T3 or T3/T4 to use for decently quick spoolup and about 310whp @ 7psi? What A/R should I be looking at? 50 trim?

Any help would be appreciated.

 

I'd say a T04E 60 trim with a T3 0.63 a/r turbine.

IMO, log manifolds plus restricitve turbine housings are a bad combo on the S2000. If you do go log, try to use at least a 3" downpipe and exhaust. My suggestion. If you want quick spool but still with good power up high, go with a small GT series turbo with a GT series turbine housing and tubular manifold.

tim