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boost question!!!!

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Old Sep 12, 2012 | 04:25 PM
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Default boost question!!!!

Why is my car now only making 5# at wot!!!!! Help asap please
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Old Sep 12, 2012 | 04:28 PM
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You have to put details of your build/supercharger etc....no mindreaders here
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Old Sep 12, 2012 | 04:44 PM
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Ecs kit was showing 8 to 9 now it maybe goes Sometimes to 5
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Old Sep 12, 2012 | 04:54 PM
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Belt slip, boost leak, or gauge isn't reading correct anymore.
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Old Sep 12, 2012 | 05:22 PM
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My guess is the belt is not adjusted correctly after the recent swap. Make sure the tensioner is at least 50% open when the engine is at rest.
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Old Sep 12, 2012 | 06:56 PM
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When you "fixed" your boost gauge vacuum hose you could have left a leak.

I bet your car is making full PSI and your gauge says otherwise.

Jason
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Old Sep 12, 2012 | 10:23 PM
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Originally Posted by DOUG @ ECS
My guess is the belt is not adjusted correctly after the recent swap. Make sure the tensioner is at least 50% open when the engine is at rest.
Will check tensioner tomorrow thanks for the reply doug i called monday asking bout a tensioning tool n never got email from chris with the pics ...and charger still leakin maybe from over fill port but i was told it stop after break in...this has been one hell of an experience on my first FI car to say da least
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Old Sep 12, 2012 | 10:54 PM
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You should notice the difference with the butt dyno. Feel significantly slower? If not I'd guess gauge.

It's also plausible that a pipe has come loose if it wasn't clamped all the way down. If it feels slower check the piping.

Last I would look for dust or excess wear on the belt to see if it's slipping.
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Old Sep 13, 2012 | 08:03 AM
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Originally Posted by 1sc334
Will check tensioner tomorrow thanks for the reply doug i called monday asking bout a tensioning tool n never got email from chris with the pics ...and charger still leakin maybe from over fill port but i was told it stop after break in...this has been one hell of an experience on my first FI car to say da least

Have you had your kit over 1 year? If not then you just need a 3/8's ratchet for the tensioner? If the head unit is weaping, we have found it to be from being over filled.
Let me know if I can help!
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Old Sep 13, 2012 | 10:21 PM
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Originally Posted by DOUG @ ECS
Have you had your kit over 1 year? If not then you just need a 3/8's ratchet for the tensioner? If the head unit is weaping, we have found it to be from being over filled.
Let me know if I can help!
Had kit since july but did take ur advice on how to retension belt and everything Seems to be back to normal and how long does it normally take for fluid to STOP weaping out and wat type of fluid should be put back in it when hanging it....and another question......if i
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Old Sep 13, 2012 | 10:23 PM
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Originally Posted by DOUG @ ECS
Have you had your kit over 1 year? If not then you just need a 3/8's ratchet for the tensioner? If the head unit is weaping, we have found it to be from being over filled.
Let me know if I can help!
Had kit since july but did take ur advice on how to retension belt and everything Seems to be back to normal and how long does it normally take for fluid to STOP weaping out and wat type of fluid should be put back in it when hanging it....and another question......if take the restrictor plate of and never took car past the boost level it was tuned for 10# shouldnt i be ok?
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Old Sep 14, 2012 | 02:55 PM
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Originally Posted by 1sc334
If I take the restrictor plate of and never took car past the boost level it was tuned for 10# shouldnt i be ok?
If the car was tuned for 10# and the plate stuck it at 10# then yes you'll be ok if you never take it past that level. The issue being you can't go WOT with the plate off as boost will pass 10# without the plate.

Then what's the point of having a high hp car that you can only drive at part throttle.
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Old Sep 14, 2012 | 06:34 PM
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I also think that the use of the restrictor plate gives you some more torque at bottom end. Might be a good idea to leave it in.
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Old Sep 14, 2012 | 07:28 PM
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You can't just take the restrictor plate out. You will need another tune at the very least.
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Old Sep 14, 2012 | 07:30 PM
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Originally Posted by NSANEC6
I also think that the use of the restrictor plate gives you some more torque at bottom end. Might be a good idea to leave it in.
Only matters at WOT
Originally Posted by MARSC6
You can't just take the restrictor plate out. You will need another tune at the very least.
See above answer. You're wrong about the plate, it has no ill-affect at part throttle.
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Old Sep 14, 2012 | 07:33 PM
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Originally Posted by Drewstein
Only matters at WOT

See above answer. You're wrong about the plate, it has no ill-affect at part throttle.
He asked about not going past 10 PSI. That is not part throttle
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Old Sep 14, 2012 | 08:30 PM
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Had belt slippage in quest to find out why i wasnt making any boost i removed plate and saw boost for a brief second so i retightened belt and car felt amazing thus the reason i asked the question and no it doesnt have to be revved to 6500 to make the 10# of boost thats the reason i asked if i would damage anything if i left it like this dont really like having to turn it up that high but maybe all i needed to do all along was to tighten belt in the first place.
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Old Sep 14, 2012 | 11:18 PM
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Originally Posted by 1sc334
no it doesnt have to be revved to 6500 to make the 10# of boost thats the reason i asked if i would damage anything if i left it like this
I'm going to try my best to understand your super long sentence.

My statement of WOT stands true to yours as the car will make 10# much sooner than 6500rpm when the throttle is pegged. You can drive 6500rpm and be part throttle and have less than 10# as well. I wouldn't recommend going too far at that RPM though.

So my comment stands that you can't be full throttle without the plate in it and expect it to live without checking the tune etc. Feel free to drive part throttle wherever you choose.

If you want to romp on it get the plate in, adjust the tune, or lower the boost.
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Old Sep 15, 2012 | 07:33 AM
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Originally Posted by 1sc334
Had belt slippage in quest to find out why i wasnt making any boost i removed plate and saw boost for a brief second so i retightened belt and car felt amazing thus the reason i asked the question and no it doesnt have to be revved to 6500 to make the 10# of boost thats the reason i asked if i would damage anything if i left it like this dont really like having to turn it up that high but maybe all i needed to do all along was to tighten belt in the first place.
First graph is when I had the restrictor plate in. Second is without plate and the addition of a better alky kit and upgraded fuel system. Went from about 9psi to 14.





The plate makes a difference across the entire curve. I wouldn't touch wot without a tune and fuel system upgrade.
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Old Sep 15, 2012 | 10:01 AM
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You definitely need to be retuned if you remove the plate, staying under 10lbs is not the proper answer IMHO.
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