Running z32 maf as blow through. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Gladman · 05-31-2004, 04:27 PM

Will it work?

If i relocate my Z32 maf just before the throttle body will it read the boosted air.

In theory it should work... its a heated element and the compressed air should just increase the cooling effect therefore giving off the same reading...

Reason i want to try is vented BOV and compressor surge.

If i move the MAF closer to the intake, i should be able to vent to atmosphere without any change in how the car runs and compressor surge wont give me any heck.

Thoughts?

mjjstang · 05-31-2004, 04:45 PM

im guessing that it wont seeing that would totally eliminate the need (or want) to recirculate bov air and people still do it so I would say it wont work. and IIRC even cooled boosted air is still hotter than atmospheric air. so you would get a bad reading.

Gladman · 05-31-2004, 06:00 PM

yes but the heated element is a couple hundred degrees.

hot air compressed to 10psi is going to have a greater cool effect than ambient air...... it might be worth a try who knows.

sr240mike · 05-31-2004, 06:30 PM

Quite a few people have done this with good results. You're car won't run rich between shifts with a BOV, and also wont run rich due to boost leaks because most of the time the leaks are before the throttle body after the MAF. The MAF may crap out sooner though do to it being under boost and being plastic. Check out this link. http://forums.freshalloy.com/ubbthre...b=5&o=&fpart=1

05-31-2004, 04:27 PM	#1
Gladman Zilvia Member Join Date: Feb 2004 Location: Vancouver Age: 39 Posts: 287 Trader Rating: (0) Feedback Score: 0 reviews	Running z32 maf as blow through. Will it work? If i relocate my Z32 maf just before the throttle body will it read the boosted air. In theory it should work... its a heated element and the compressed air should just increase the cooling effect therefore giving off the same reading... Reason i want to try is vented BOV and compressor surge. If i move the MAF closer to the intake, i should be able to vent to atmosphere without any change in how the car runs and compressor surge wont give me any heck. Thoughts? __________________ Kick Ass 2.4Liter Engine!

05-31-2004, 04:45 PM	#2
mjjstang Post Whore! Join Date: Apr 2003 Location: Michigan Posts: 2,654 Trader Rating: (5) Feedback Score: 5 reviews	im guessing that it wont seeing that would totally eliminate the need (or want) to recirculate bov air and people still do it so I would say it wont work. and IIRC even cooled boosted air is still hotter than atmospheric air. so you would get a bad reading. __________________ I was going to, but I can not think of a sig less than 75 characters.

05-31-2004, 06:00 PM	#3
Gladman Zilvia Member Join Date: Feb 2004 Location: Vancouver Age: 39 Posts: 287 Trader Rating: (0) Feedback Score: 0 reviews	yes but the heated element is a couple hundred degrees. hot air compressed to 10psi is going to have a greater cool effect than ambient air...... it might be worth a try who knows. __________________ Kick Ass 2.4Liter Engine!

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05-31-2004, 06:30 PM	#4
sr240mike Zilvia FREAK! Join Date: Apr 2004 Location: California, Norcal biiaatch Posts: 1,185 Trader Rating: (0) Feedback Score: 0 reviews	Quite a few people have done this with good results. You're car won't run rich between shifts with a BOV, and also wont run rich due to boost leaks because most of the time the leaks are before the throttle body after the MAF. The MAF may crap out sooner though do to it being under boost and being plastic. Check out this link. http://forums.freshalloy.com/ubbthre...b=5&o=&fpart=1