Originally Posted by
vroooom ptssssh
That's some serious work. Must be pushing for well into 4 figure power ?
Originally Posted by
BRAMMER
Why do some intercoolers run 76mm pipes and mate to standard size throttle body?
Is their any advantages on running bigger pipes the reducing down to throttle size with silicon hose?
Or is it better to run consistently through using matching size pipes to compressor housing and throttle body?
You are quite right. It doesnt really make much sense at all. The only reason you'd have a large IC exit, is to help smooth the flow from the end tank into the pipework. But that's more IC design than plumbing.
It also makes no sense for people to fit ridiculously large TB's either, yet most do it. I seen a local guy here with a GT4 and he...well, his "tuner" had fitted some 95mm TB to it. Seriously...a 400bhp car with a TB capable of 2000bhp. Intelligent. Open the throttle more than 30% and it's letting in all the air the engine could ever consume.
If the plumbing had loads of bends, it could make sense to make it bigger simply to account for the restrictive nature of the bends compared to a straight pipe. But in that respect, Cossies are very good. 1 bend from turbo to IC, and no bends on the IC to TB