ap2 boost to 9k
07-13-2008, 09:28 PM
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ap2 boost to 9k
hey all,
so i have a vorteched ap2, i took it to my tuner and he put in a 9lb pully and raised the redline to 9k, i have 55lb injectors, and an aem, my question is is it safe to run the motor boosted to to 9k on an ap2?, i also put in new valve springs and retainers, for the 9k redline. my tuner is autowave in hb, and i have only heard what a great tuner he is and i trust him. what do you guys think??
thanks all
jonny
so i have a vorteched ap2, i took it to my tuner and he put in a 9lb pully and raised the redline to 9k, i have 55lb injectors, and an aem, my question is is it safe to run the motor boosted to to 9k on an ap2?, i also put in new valve springs and retainers, for the 9k redline. my tuner is autowave in hb, and i have only heard what a great tuner he is and i trust him. what do you guys think??
thanks all
jonny
07-13-2008, 09:36 PM
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Are they new OEM ones or aftermarket springs and retainers? With aftermarket(assuming they are stronger than OEM, of course) valve springs and retainers I don't see why not.
07-13-2008, 09:43 PM
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Then I would say yes. Autowave is generally a pretty smart shop from what I've heard. Also taking into account that the springs and retainers are what go bad when over-revving happens, as long as you have stronger ones you should be fine.
Now if you were on a stock head with stock valve springs and retainers then I would definitely not recommend reving to 9k. I don't really see the advantage of reving to 9k though if you only have valve springs and retainers. I would guess you are losing power. You should have just purchased a smaller pulley to run more boost to 8k, that way you keep everything safe and make more power on a smaller curve...
Now if you were on a stock head with stock valve springs and retainers then I would definitely not recommend reving to 9k. I don't really see the advantage of reving to 9k though if you only have valve springs and retainers. I would guess you are losing power. You should have just purchased a smaller pulley to run more boost to 8k, that way you keep everything safe and make more power on a smaller curve...
07-13-2008, 09:49 PM
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he said that i will make 340whp to 8k and 360 whp reving to 9k, he has already tryed it and it made more power to 9k. do you think i have to worry about breaking a rod
07-13-2008, 09:50 PM
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Originally Posted by ABCVTEC,Jul 13 2008, 09:43 PM
Then I would say yes. Autowave is generally a pretty smart shop from what I've heard. Also taking into account that the springs and retainers are what go bad when over-revving happens, as long as you have stronger ones you should be fine.
Now if you were on a stock head with stock valve springs and retainers then I would definitely not recommend reving to 9k. I don't really see the advantage of reving to 9k though if you only have valve springs and retainers. I would guess you are losing power. You should have just purchased a smaller pulley to run more boost to 8k, that way you keep everything safe and make more power on a smaller curve...
Now if you were on a stock head with stock valve springs and retainers then I would definitely not recommend reving to 9k. I don't really see the advantage of reving to 9k though if you only have valve springs and retainers. I would guess you are losing power. You should have just purchased a smaller pulley to run more boost to 8k, that way you keep everything safe and make more power on a smaller curve...
07-13-2008, 09:51 PM
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Originally Posted by ABCVTEC,Jul 13 2008, 09:43 PM
Then I would say yes. Autowave is generally a pretty smart shop from what I've heard. Also taking into account that the springs and retainers are what go bad when over-revving happens, as long as you have stronger ones you should be fine.
Now if you were on a stock head with stock valve springs and retainers then I would definitely not recommend reving to 9k. I don't really see the advantage of reving to 9k though if you only have valve springs and retainers. I would guess you are losing power. You should have just purchased a smaller pulley to run more boost to 8k, that way you keep everything safe and make more power on a smaller curve...
Now if you were on a stock head with stock valve springs and retainers then I would definitely not recommend reving to 9k. I don't really see the advantage of reving to 9k though if you only have valve springs and retainers. I would guess you are losing power. You should have just purchased a smaller pulley to run more boost to 8k, that way you keep everything safe and make more power on a smaller curve...