Building my soon to be Ap2
08-31-2008, 03:47 PM
#21
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I think Im going to start with header/exhaust/intake put in a racing seat/hanress (i already have a few) a roll bar and some good coilovers. Maybe moton. for autox whats the best rim/tire size for the s2000? 16/17? Ill race it for a while and then decide on stroking the engine or just putting on a small trim turbo.
08-31-2008, 04:17 PM
#22
Originally Posted by negcamber,Aug 31 2008, 08:38 AM
Joe Alaniz and Hytech
Although I'll be interested to see how ENDYN does on Carrera's head. Carrera, I hope the changes they make help your motor...I'll admit that I'm skeptical that increasing flow by that much will make as large a difference as you're estimating, simply because I don't think there is that much usable volume left in the combustion chamber without increasing displacement. But I admit I haven't done the calculations to prove this to myself, so it's speculation on my part.
Although I'll be interested to see how ENDYN does on Carrera's head. Carrera, I hope the changes they make help your motor...I'll admit that I'm skeptical that increasing flow by that much will make as large a difference as you're estimating, simply because I don't think there is that much usable volume left in the combustion chamber without increasing displacement. But I admit I haven't done the calculations to prove this to myself, so it's speculation on my part.
At this moment I trust what ENDYN is saying which computes to about 260 WHP or more from this setup. Time will tell.
09-01-2008, 12:02 PM
#23
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Originally Posted by RevvHii,Aug 31 2008, 04:47 PM
I think Im going to start with header/exhaust/intake put in a racing seat/hanress (i already have a few) a roll bar and some good coilovers. Maybe moton. for autox whats the best rim/tire size for the s2000? 16/17? Ill race it for a while and then decide on stroking the engine or just putting on a small trim turbo.
Also the best tire size/width depends on your coilover setup, as well as other suspension components you may have modified. Most stick with something around the stock AP2 sizes. But i dont see a reason why you cant go a little wider, with a proper wheel choice.
09-01-2008, 01:37 PM
#24
Originally Posted by RevvHii,Aug 31 2008, 04:47 PM
I think Im going to start with header/exhaust/intake put in a racing seat/hanress (i already have a few) a roll bar and some good coilovers. Maybe moton. for autox whats the best rim/tire size for the s2000? 16/17? Ill race it for a while and then decide on stroking the engine or just putting on a small trim turbo.
If you go with a 225 in the front, I would suggest a 245 in the back because the balance will be better.
If you are getting new rims either shoot for 235 F / 255 B or a non-stagger setup 255 all around.
09-01-2008, 06:26 PM
#25
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Originally Posted by RevvHii,Aug 31 2008, 06:39 PM
so a low boost s2000 would do fairly well on autox/timeattack?
[QUOTE=RevvHii,Aug 31 2008, 06:44 PM]are
09-02-2008, 06:30 AM
#27
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260whp mark will be difficult to obtain without some kind of forced induction. I also hope carrera gets some decent gains from his Edyn set up, but I doubt him getting anything over 10-15hp if he's lucky. Usually 25-30hp is seen from head and manifold upgrades of that nature on turbo cars. My hopes are high thought for his success. Although I agree it would be more beneficial to him if he also went with a stroker motor.
Your best bet to hit 260whp is going stroker. 2.5L by inline has proven to be reliable both on the street and for track use. I'd stick with a low 12.0.1 comp ratio. Gives you good tuning abilities with pump gas, and a bit more bump over the lower comp ratios closer to stock. A good header(probably J's, unless you can actually get a hytech one), a ram air intake set-up, full 70mm exhaust system, or a custom 3" system. Hondata IMG, throttle body, and a good flywheel/clutch combo to free up more whp.
To be honest you may exceed your desires hp range. I know there is a member with a similar set-up(with a more restricting exhaust system) that is already over the 260whp mark. This is without any manifold work...so you can imagine the possibilities if someone released a manifold that made power
Your best bet to hit 260whp is going stroker. 2.5L by inline has proven to be reliable both on the street and for track use. I'd stick with a low 12.0.1 comp ratio. Gives you good tuning abilities with pump gas, and a bit more bump over the lower comp ratios closer to stock. A good header(probably J's, unless you can actually get a hytech one), a ram air intake set-up, full 70mm exhaust system, or a custom 3" system. Hondata IMG, throttle body, and a good flywheel/clutch combo to free up more whp.
To be honest you may exceed your desires hp range. I know there is a member with a similar set-up(with a more restricting exhaust system) that is already over the 260whp mark. This is without any manifold work...so you can imagine the possibilities if someone released a manifold that made power
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