BOV to atmosphere

04 Mach1 · 03-07-2006, 07:51 PM

Is there anything different I must do for my start up tune? BOV is after Maf.

QWKSNKE · 03-07-2006, 07:55 PM

BOV must be before the MAF to vent to atmosphere

04 Mach1 · 03-07-2006, 08:32 PM

Is there not away around this with the tweecer???

sailorbob · 03-08-2006, 05:10 AM

Probably not, there's no way to know how much metered air is being lost and the eec has no idea of what's going into the engine. Why not use a recirculating dump valve?

EZ SPEED · 03-08-2006, 06:33 AM

There are Guys with Turbo Gen 1 Lightnings doing it...BUT....I dont know howthe hell they are getting away with it...they must be awesome tuners.

sailorbob · 03-08-2006, 10:18 AM

The only way I can of doing it is;

air filter - turbo - intercooler - bov - maf - throttle - manifold

Intercooler and bov could be the other way around, so could the maf and throttle.

04 Mach1 · 03-08-2006, 04:50 PM

The last time I went to the track(months ago) there was a superchargered 86 gt with his vented to the atomsphere, I asked about it and he said it didn't have any tuning or even a chip the only problem was after a wot it would try to die. The car went 10.20s all day.

Wall96cobra · 03-08-2006, 05:01 PM

He must of had a blowthru maf setup (bov before the maf and maf after the supercharger). If you try to run it vented to atmosphere with a drawthru maf it will run like shit!!! I had mine vented to atmosphere for a while but it was a blowthru maf setup.

04 Mach1 · 03-08-2006, 05:32 PM

The same setup as me other than his was all paxton.

86GT · 03-08-2006, 06:16 PM

If it was a true 86 then there is no MAF. The 86 is speed density not MASS AIR.

03-07-2006, 07:51 PM	#1
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	BOV to atmosphere Is there anything different I must do for my start up tune? BOV is after Maf.

03-07-2006, 07:55 PM	#2
QWKSNKE 3v's are slow Join Date: Dec 2004 Location: Here and There Posts: 17,152	Re: BOV to atmosphere BOV must be before the MAF to vent to atmosphere

03-07-2006, 08:32 PM	#3
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: BOV to atmosphere Is there not away around this with the tweecer???

03-08-2006, 05:10 AM	#4
sailorbob Junior Member Join Date: Aug 2005 Posts: 29	Re: BOV to atmosphere Probably not, there's no way to know how much metered air is being lost and the eec has no idea of what's going into the engine. Why not use a recirculating dump valve?

03-08-2006, 06:33 AM	#5
EZ SPEED Friends Join Date: Dec 2004 Location: Tempe Arizona Posts: 3,029	Re: BOV to atmosphere There are Guys with Turbo Gen 1 Lightnings doing it...BUT....I dont know howthe hell they are getting away with it...they must be awesome tuners. __________________ 2020 Range Rover Sport HSE P525 Dynamic - Firenze Red - Supercharged 5.0 - 518 HP SOLD - 2010 Camaro SS [/B] - Featured in GM High Tech Performance and Camaro Now Magazines - http://www.superchevy.com/features/g...of-perfection/

03-08-2006, 10:18 AM	#6
sailorbob Junior Member Join Date: Aug 2005 Posts: 29	Re: BOV to atmosphere The only way I can of doing it is; air filter - turbo - intercooler - bov - maf - throttle - manifold Intercooler and bov could be the other way around, so could the maf and throttle.

03-08-2006, 04:50 PM	#7
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: BOV to atmosphere The last time I went to the track(months ago) there was a superchargered 86 gt with his vented to the atomsphere, I asked about it and he said it didn't have any tuning or even a chip the only problem was after a wot it would try to die. The car went 10.20s all day.

03-08-2006, 05:01 PM	#8
Wall96cobra ooooo cake!!! Join Date: Dec 2004 Location: Saks, AL Posts: 1,630	Re: BOV to atmosphere He must of had a blowthru maf setup (bov before the maf and maf after the supercharger). If you try to run it vented to atmosphere with a drawthru maf it will run like shit!!! I had mine vented to atmosphere for a while but it was a blowthru maf setup.

03-08-2006, 05:32 PM	#9
04 Mach1 Bet I red light B4U Join Date: Aug 2005 Location: ANNISTON, AL Posts: 975	Re: BOV to atmosphere The same setup as me other than his was all paxton.

03-08-2006, 06:16 PM	#10
86GT Member Join Date: Mar 2005 Location: Sacramento California Posts: 449	Re: BOV to atmosphere If it was a true 86 then there is no MAF. The 86 is speed density not MASS AIR. __________________ EEC Analyzer A9M, TwEECer, 306ci, 73mm C&L w Tuner Tube, Cobra Intake, 42# inj, Edelbrock 6037, E303 cam, 155 fuel pump, FPR, 70mm TB, E-Fan, 3.55 gears, Powerdyne 9psi actual 5psi...way more.