Couple of things that make the biggest difference....
CAMS, and both Manifolds.
Stock CAMS are going to spool earlier but lose top end and vice versa..... CAMS make a huge difference on response too.
Greddy Manifold is going to have you lose low end for sure... Losing low end is also response time, which you complaining about.
Equal length manifolds going to lose low end also leading to slow response...
Tomei or Stock or Preferably a Swain and Honed Stock Cast.
Boost controllers make a HUGE difference too.... Depending on gain settings, it changes everything....
Intercooler piping design. Blitz vs Greddy vs HKS vs Ebay.... Its a big difference....
Stock vs Lightened Flywheel
Finally actually better clamps on pipes and couplers make a different too.... Thats just it....
Quote:
Originally Posted by OBEEWON
There is def a difference in spool
I've drifted a .64 and my .86. If I let my rpms drop anywhere near 3 grand its a wrap. Granted the .64 car was on stock cams so I don't know how relevant that is.
I have Smelly live ROM tuning me. He is pretty good. I would give Steve a shot but Im not paying to fly him out here or driving to Cali.
I just got off the phone with my friend. I know this is a different motor but this is what he is running.
4G63-stock head and bottom
Stock intake manifold
Stock Exhaust manifold ported
280 cams
3076R
He says he hits at 3800, carries all the way through 8200 and makes 427whp 386lb tq. @ 27psi and peak power is 7100rpm
I havn't seen a 2871 do anything like that.
I do think his PSI is kinda high though. But at 22psi my car felt days slower than his.
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