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How far to push it?

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Old Aug 10, 2012 | 12:46 PM
  #11  
REDCYCLE13
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Originally Posted by idahoblkss
hate to say it but if your hurting a motor on 8 psi you need a new tuner unless it was a freak accident (**** happens of course). i been running over 15 psi (15-17psi) for over a year now and was pushing 12 psi before that for a couple years , all this on a stock long block. my friend also has a c5 z06 that has been on 13 psi for a couple years no problems stock long block as well with a vortech blower.
i havent had the pleasure to dig into a 6.2 yet and play with it but i would say 500 hp could be achieved around 10-12 psi with the right tuning and fuel!?
The motor never stopped running, or made any noise. It just started to push the dipstick out under boost. When we pulled the motor it looked perfect, no broken pistons, or scarred cylinder walls.
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Old Aug 10, 2012 | 01:44 PM
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OH OK , so it wasnt necessarily hurt you were just boosting the crank case? mine was doing that till i put a vent valve on my oil cap a couple years ago and i havent had a issue since.
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Old Aug 10, 2012 | 02:22 PM
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6.2's don't seem to like the combo of high boost and wieght as much as the GENIII Motors.
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Old Aug 10, 2012 | 03:00 PM
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Originally Posted by 03sierraslt
6.2's don't seem to like the combo of high boost and wieght as much as the GENIII Motors.
I think there is just more of a spotlight on them since they are the new platform and are getting more attention. Tons of GENIII motors blowing up also just don't hear about them as much.
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Old Aug 10, 2012 | 03:01 PM
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I do agree though that the higher CR doesn't help from the get go though. When we rebuilt my motor we brought the CR down a hair with the new pistons to help us out
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Old Aug 10, 2012 | 03:05 PM
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stock fuel pump?
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Old Aug 10, 2012 | 03:28 PM
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Old Aug 10, 2012 | 04:55 PM
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REDCYCLE13
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Originally Posted by 62nalide
stock fuel pump?
I left the stock fuel pump alone in order to prevent myself from going all out right away. I figure it will keep me close to my power level. I have a 750rwhp Corvette that I learned the snowball effect with.
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Old Aug 10, 2012 | 05:07 PM
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Originally Posted by REDCYCLE13
I left the stock fuel pump alone in order to prevent myself from going all out right away. I figure it will keep me close to my power level. I have a 750rwhp Corvette that I learned the snowball effect with.
you being AWD im sure your in the mid 400awhp which is great it'll still out run my 600 plus rwhp Denali from a digg but i would keep it at 7-8psi be SAFE with it untill u open it up and upgrade your fuel pump
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Old Aug 10, 2012 | 05:54 PM
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REDCYCLE13
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Originally Posted by 62nalide
you being AWD im sure your in the mid 400awhp which is great it'll still out run my 600 plus rwhp Denali from a digg but i would keep it at 7-8psi be SAFE with it untill u open it up and upgrade your fuel pump
I've heard that hooking up a boost-a-pump is tricky on a flex fuel truck. Is it possible to do it with the variable voltage pump?
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