weird, maybe someone knows....

Subject: weird, maybe someone knows.... Mon Apr 21, 2008 1:19 am

ok, anyone know what could cause this.

I took my car to the carwash and on the way home hit a couple WOT runs. The first one I only got 7lbs of boost and just as much knock ( and yes I changed back to my 3.25" larger pulley) and the 2nd one i got ZERO boost.

what could cause that. the BBV seems to be working fine, all vac hoses checked.

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 1:20 am

dreww wrote:: ok, anyone know what could cause this.

I took my car to the carwash and on the way home hit a couple WOT runs. The first one I only got 7lbs of boost and the 2nd one i got ZERO.

what could cause that. the BBV seems to be working fine, all vac hoses checked.

hmm... does it stilll have butt tons of power?

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 7:08 am

hell no, not with no boost. The belt is fine.

I did notice this happened right after i switched back to the 3.25". I was seeing more KR on the 3.25 than the 3.0 pulley!

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 8:22 am

dreww wrote:: hell no, not with no boost. The belt is fine.

I did notice this happened right after i switched back to the 3.25". I was seeing more KR on the 3.25 than the 3.0 pulley!

Dang that stinks!

When its running can you hear the blower revolving around?

Does it sound the same?

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 8:45 am

Most likely you have a bad or failing ignition component and that caused some KR which caused the boost to dump.

Translation: you probably got a plug wire wet and it's in need of being replaced.

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 9:04 am

I was thinking Boost Control Solenoid or bypass valve.

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 9:06 am

BOV???

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 12:07 pm

do you have a press on pulley or a MPS? the pulley isnt just rotating freely? (never heard of that, but just a guess)

_________________
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weird, maybe someone knows.... Dsc_0110

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 12:18 pm

TonySmooth89 wrote:: I was thinking Boost Control Solenoid or bypass valve.

seems likely

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 3:26 pm

BillBoost37 wrote:: Most likely you have a bad or failing ignition component and that caused some KR which caused the boost to dump.

Translation: you probably got a plug wire wet and it's in need of being replaced.

I agree, cuz i had the same thing happen to me before my car blew up. But also Check your vacuum lines very thouroghly!!! make sure none are crimped or are soft.

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 5:48 pm

98riviera98 wrote:

dreww wrote:: hell no, not with no boost. The belt is fine.

I did notice this happened right after i switched back to the 3.25". I was seeing more KR on the 3.25 than the 3.0 pulley!

Dang that stinks!

When its running can you hear the blower revolving around?

Does it sound the same?

you can hear the blower, but when in boost it is noticeably louder and I was not getting that extra blower volume.

I agree on the dumping boost to prevent major detonation, but my only other guess is that maybe I was too rich? or the IPW was static since I added 2% to the top end of fueling after the 3.0" was put on. I will do a full scan and check the IPW's.

Subject: Re: weird, maybe someone knows.... Mon Apr 21, 2008 5:50 pm

So you kept the fuel curve for the 3.0" when you switched back to 3.25"? What happens when you switch back to your previous (3.25") tune?

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