Tim@TBDevelopments
Lifer
yeah i know what you mean.
i wander if this would work with an ARC topmount ic?
Tim
i wander if this would work with an ARC topmount ic?
Tim
The point of the manifold is not to make peak power. Given its dimensions and runner lengths I don't see how it could perform better than the stock intake manifold.
From what I remember the stock 5E intake manifold performed better in regards to where the power peaked. I couldn't make a direct comparison because the cars tested at the time were using two difference turbochargers, the non-ACIS car had a IHI hybrid and the ACIS car was using a T3/T4, had JAM Racing cams, and a 9000rpm rev limit. On the T3/4 car the combination of turbo size (backhousing) and cams had moved power high in the rpm band and left very little bottom end power with the stock manifold. Going to the ACIS manifold and using the SDS trigger around 5000rpm saw peak power reduced, but positive gains before activation. At some point it was eventually set between 3000 - 5000rpm, I can't remember right now. However, peak power did drop.in your opinion, do you think the stock 4efte intake manifold will yield relatively more/less/same top end and peak power than the 5efhe acis intake manifold on the same set-up 4efte/5efte turbo car?
think gorgannl2000 is onto the right track, if we can get runner dimentions of the standard 4e manifold and length i can work out some basic flow numbers for standard runners and the acis mani and see where the improvement is. ideally i'd like to see longer runners giving a much higher velocities and the shorter giving more flow than the 4e but its anyones guess at the moment.
wee john did ya burst into the 300 club
i need an update
I agree totally, which was the point of our using it in the first place. To allow a bigger than normal turbo with cams without the natural low end loss.I will get print outs of the runs to let you see them, very interesting. I am still convinced this set up, especially with the larger throttle body, would suit a large flowing turbo rather than a small one.
No mate, air flow is good down low but dies off at the top so we think there may be a problem with the turbo.
Close but not quite lol. It will get me the 12 I have been searching for the last 2 years so I will be happy enough come March.
Sean/GT beater said you might even race this year, any truth in that or is he winding again?