Valvetrain
#1
Haz l33t wheelz.
Thread Starter
Valvetrain
ok, what are the specs on our valve springs/retainers? i want to uprade mine, because when i eventually get a tune and raise my rev limiter, i don't want to chance valve-float.
thanks guys!
thanks guys!
#4
If the stock valves are said to float at 7200 rpms, is it "dangerous" to take it to 7000k rpms on the dyno?
Edit: I have the gm stage 2 tune, so I can hit 7k rpms. Roughly.
Edit: I have the gm stage 2 tune, so I can hit 7k rpms. Roughly.
#5
Haz l33t wheelz.
Thread Starter
haha, im doing research man! haha. nothing is being bought until October/December time frame, just want to get as much info as i can, so i don't f things up.
that's what i thought, thats about where i want to set mine, 7200/7500 and i don't want to destroy stuff. doesn't stage 3 allow you to go all the way to 8000?
that's what i thought, thats about where i want to set mine, 7200/7500 and i don't want to destroy stuff. doesn't stage 3 allow you to go all the way to 8000?
Last edited by ls1fbody; 06-28-2008 at 02:33 PM. Reason: Automerged Doublepost
#6
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haha, im doing research man! haha. nothing is being bought until October/December time frame, just want to get as much info as i can, so i don't f things up.
that's what i thought, thats about where i want to set mine, 7200/7500 and i don't want to destroy stuff. doesn't stage 3 allow you to go all the way to 8000?
that's what i thought, thats about where i want to set mine, 7200/7500 and i don't want to destroy stuff. doesn't stage 3 allow you to go all the way to 8000?
what happens when u float a valve?
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#12
Rattlesnake Race Shop
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haha, im doing research man! haha. nothing is being bought until October/December time frame, just want to get as much info as i can, so i don't f things up.
that's what i thought, thats about where i want to set mine, 7200/7500 and i don't want to destroy stuff. doesn't stage 3 allow you to go all the way to 8000?
that's what i thought, thats about where i want to set mine, 7200/7500 and i don't want to destroy stuff. doesn't stage 3 allow you to go all the way to 8000?
Stock pistons are also SAID to go out at like 260-280hp...
That's been smashed quite a few times.
7200rpm's is where GM says they have potential to float.
Just upgrade them and take that bitch to 8k.
#13
Haz l33t wheelz.
Thread Starter
well, im looking for what size/spring rate or whatever they measure valve springs by. i don't know to much about their technical specs, just what they do, haha
#16
I am making 270hp to the wheels...do you think i should upgrade my stock pistons to the diamond pistons everyone uses, and with doing so also upgrade the springs even though i won't be taking my car over 7k rpm's?
Is 270whp really to much for the stock pistons....if so...thats sad.
also - if the stock pistons go at around 260-280...why is the zzp twin kit making 445hp and still pulling strong?
Is 270whp really to much for the stock pistons....if so...thats sad.
also - if the stock pistons go at around 260-280...why is the zzp twin kit making 445hp and still pulling strong?
Last edited by Zach06CobaltSC; 06-28-2008 at 03:34 PM. Reason: Automerged Doublepost
#18
Rattlesnake Race Shop
iTrader: (1)
I am making 270hp to the wheels...do you think i should upgrade my stock pistons to the diamond pistons everyone uses, and with doing so also upgrade the springs even though i won't be taking my car over 7k rpm's?
Is 270whp really to much for the stock pistons....if so...thats sad.
also - if the stock pistons go at around 260-280...why is the zzp twin kit making 445hp and still pulling strong?
Is 270whp really to much for the stock pistons....if so...thats sad.
also - if the stock pistons go at around 260-280...why is the zzp twin kit making 445hp and still pulling strong?
GM SAYS that the stock pistons won't hold more than 300hp (not WHP... but BHP). Obviously there are quite a few people making WELL over than.
Your best bet is to switch them out, just to be safe... if you plan on making more HP eventually.
Its all in the tune really.
#19
currently i have the gm stage 2 tune, but i will be getting an actual tune sometime in july when my tuner gets back.
I do plan on making more power, what do you suggest I upgrade to stay "safe"?
I do plan on making more power, what do you suggest I upgrade to stay "safe"?
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