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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 10-19-2004, 01:54 AM   #31
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Dude, what are your shift points now? Sorry to say, but my redline is at 5200rpm, and without some better balancing, along witht he valvetrain upgrades, I don't think i'd want her in that range. I think the crank needs to be balanced for that, but I don't know what ours' are rated for. Just be careful, we all care, because we don't want your engine going up in smoke. Because, that would be bad.


-justin
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Old 10-19-2004, 02:02 AM   #32
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Quote:
Originally Posted by opensourceguy
Dude, what are your shift points now? Sorry to say, but my redline is at 5200rpm, and without some better balancing, along witht he valvetrain upgrades, I don't think i'd want her in that range. I think the crank needs to be balanced for that, but I don't know what ours' are rated for. Just be careful, we all care, because we don't want your engine going up in smoke. Because, that would be bad.


-justin
Justin, the Series 2 is a totally different animal. They rev higher.
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Old 10-19-2004, 08:15 AM   #33
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Ah, okie dokie, nevermind me then


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Old 10-19-2004, 11:41 AM   #34
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It'* a series II engine, using a common ground cam for ZZP. They've run it and know what the best RPMS for it are, why is their advice wrong? They've done the same thing just as Jet in those respects.
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Old 10-19-2004, 12:27 PM   #35
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Quote:
Originally Posted by BonneMeMN
It'* a series II engine, using a common ground cam for ZZP. They've run it and know what the best RPMS for it are, why is their advice wrong? They've done the same thing just as Jet in those respects.
THANK YOU!
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Old 10-19-2004, 12:39 PM   #36
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Well here are a few examples of GT'* and GTP'* (mostly gtp'*) that probably won't benefit from a 6100rpm shift point...






Its important because you could actually LOSE PERFORMANCE, which I believe is what you're after. Anyway I'm done trying to explain it to you, hope it works out.
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Old 10-19-2004, 12:40 PM   #37
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No, they haven't done the same as Jet. Jet put the basic mods they 'require' for their Stage 2 on 3 different SSEi'*. They dyno'd all three and MILDLY raised the shift points.

Bumping a shift point by 1k is something that should be approached very carefully. That'* all DrJay and I are trying to express. I don't know alot about GMTuners. But I seriously doubt he would have changed a 95SSEi to redline shifts as someone proposed not too long ago. Same thing applies there, only worse.

The point is that the 95 (and 94) haven't really been touched. There are some unknown factors with the PCM, and variablility from car to car. Remember what DrJay posted about missing that peak by 1 or 200 rpm'*?

When this is all said and done, I hope you hit it right. Personally, I'd have a dyno (and they can be done alot cheaper than the price you quoted) before making that extreme of a change.
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Old 10-19-2004, 12:50 PM   #38
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I hope you guys understand that i'm not going to change my plans. And i think it'* beat how so much stuff gets shot down on htis forum.
There are people with intense pcms on here, did they make the wrong choice too? Go bit*h at them.
All i see above is a bunch of dynos where i don't even know what'* goin on in the engine. And you don't have to explain 'it' to me because i got it along time ago.

I asked the company who MAKES the cam where i should shift. <--Hello

Go and tell him hes wrong.
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Old 10-19-2004, 12:59 PM   #39
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You forget how you approached this topic. You didn't start by telling us it was a ZZP cam. You started by telling us 'Zoomer said so'. Scott Cook knows more about L67 PCM'*, and has dyno'd more cars than anyone else that supplies PCM'* to our members.

GM Tuners has not. Approach it carefully. That'* all we're telling you. We didn't shoot you down at all. We simply suggested you should get a dyno pull or two, THEN burn the chip to the proper shift point.

Where'* the shooting down?
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Old 10-19-2004, 01:04 PM   #40
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Ok next time i'll highlight my signature.
Point taken about the dyno. <this is a good idea but i have faith in people that build up my engine.
Shooting down? alot of stuff gets destroyed on this forum before it'* even really looked at.
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