JRSC with alternator stepper pulley and jrsc crank pulley only 8psi!
08-05-2004, 12:29 PM
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JRSC with alternator stepper pulley and jrsc crank pulley only 8psi!
Well i finally got my boost gauge hooked up and I am pretty disapointed
I have a alternator stepper pulley and the JRSC crank pulley on my type R motor and I am only spiking to 7-8 PSI then falling down to about 5-6 PSI by 7K RPM...
Do you think the fact that I have a spearco water cooler have anything to do with my low boost problem!
I thought I would have like 10PSI with no spiking...
so how much PSI should I be running if I was not Intercooled!
Tyler
I have a alternator stepper pulley and the JRSC crank pulley on my type R motor and I am only spiking to 7-8 PSI then falling down to about 5-6 PSI by 7K RPM...
Do you think the fact that I have a spearco water cooler have anything to do with my low boost problem!
I thought I would have like 10PSI with no spiking...
so how much PSI should I be running if I was not Intercooled!
Tyler
08-05-2004, 02:24 PM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (ATgrills.com)
Is your intercooler a water injection setup or something like the LHT where there is a "brick" inside the manifold? The LHT causes a couple psi of pressure drop. You shouldn't see any pressure drop with water injection.
Sonny
08-05-2004, 05:10 PM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (Sonny)
Sorta like LHT but external intercooler.. seach my name for pics of my set up!!
so why the spike?????
so why the spike?????
08-06-2004, 06:54 AM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (ATgrills.com)
A stepper on your motor should only see around 9PSI...I would imagine if the air is passed through an IC, you should see some pressure drop.
The way boost drops at high RPM like that tells me the first thing for you to check would be alternator belt tension. Are you slipping at high rpm? What pulley is it?
Edit - I see you have the crank as well...together you should be seeing around 11PSI I would imagine.
The way boost drops at high RPM like that tells me the first thing for you to check would be alternator belt tension. Are you slipping at high rpm? What pulley is it?
Edit - I see you have the crank as well...together you should be seeing around 11PSI I would imagine.
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08-06-2004, 07:10 AM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (newgsrdriver)
but does a boost spike have to be either slipping or boost leak???
I want like 10PSI.. do you think a CRV crank pulley is bigger then the jackson one?
Tyler
I want like 10PSI.. do you think a CRV crank pulley is bigger then the jackson one?
Tyler
08-07-2004, 09:10 AM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (ATgrills.com)
i would say the belt is sliping......i had the same prob.. with the boost droping.. it was the alt belt
08-07-2004, 09:20 AM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (ATgrills.com)
Its not a spike, its a drop at high RPM, which indicates alternator belt tension problems, due to either tension on the belt, or a poorly designed stepper pulley which causes the belt to slip.
08-07-2004, 11:46 AM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (newgsrdriver)
there no way im changing the aternator pulley,, thats gonna be like a full day work!!
so i guess I should just try to tighten it...
so there no way its a leak?
so i guess I should just try to tighten it...
so there no way its a leak?
08-07-2004, 01:09 PM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (newgsrdriver)
i dont even know the guy gave it to me when I bought the charger..
its all black with no ingravings on it....
Tyler
its all black with no ingravings on it....
Tyler
08-09-2004, 02:46 PM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (ATgrills.com)
today it was spiking till 7.5 PSI but its not enought!
08-14-2004, 10:10 PM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (ATgrills.com)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ATgrills.com »</TD></TR><TR><TD CLASS="quote">i dont even know the guy gave it to me when I bought the charger..
its all black with no ingravings on it....
Tyler</TD></TR></TABLE> More than likely it's an ENDYN pulley. I change a SC & an ENDYN pulley on a Civic SI & it made about 10 psi.
its all black with no ingravings on it....
Tyler</TD></TR></TABLE> More than likely it's an ENDYN pulley. I change a SC & an ENDYN pulley on a Civic SI & it made about 10 psi.
08-17-2004, 05:30 AM
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Re: JRSC with alternator stepper pulley and jrsc crank pulley only 8psi! (HYREV2NR)
ya but I have a intercooler so dont I lose like 3 PSI or something like that?
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