[darkpuppet]

ZX3_2NV,Jan 31 2008, 11:20 AM Wrote:See I do have my MAF close to the TB and i have my BOV between the intercooler and the turbo take a quick look theres not much i can do sorry for Hijacking ur thread kamilk69 but maybe this info can help you out aswell



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From what I see in this pic, I think the blow-thru arranement could be tuned for... I would probably prefer a bit longer straight run leading to/from, but it's not too bad.

Where you might find issue is with the MAF housing.. it looks like a rather large tube being fed by a smaller diameter tube, and dumping into a smaller tube..

This will likely cause problems as the smaller tube leading into the larger tube is going to cause turbulence heading to the MAF sensor -- and it'll cause inconsistent readings...

You'll notice that OEM MAFs tend to be a smaller inner diameter than the intake tract leading in and out. And this is where it would be simpler for a suck-thru arrangement... as the intake end could be near infinity (air filter diameter much larger than MAF), and the exit from the MAF isn't as dependent. However, because you're pushing air through the MAF, you want to make sure it enters nice and evenly for the entire cross section of the MAF, and encounters no constrictions leaving the MAF.

Even then, you may have an issue where the car will pop rich during off-throttle and then lean out as the needle drops, which could be remedied by decreasing the ICV decay rate (dashpot IIRC), but your revs won't drop as quickly... but nothing a little tuning couldn't mitigate.