3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

How Many Revs = Too Many?

Old 04-20-2006, 02:13 PM
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Re: How Many Revs = Too Many?

I had the TV cable adjusted wrong on my formula and it would spin to 5500 rpm just fine. It just wouldn't pull any harder after 46-4800rpm, it would just rev up and not accelerate, and no, the trans wasn't slipping.
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Old 04-20-2006, 10:22 PM
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Re: How Many Revs = Too Many?

Originally Posted by 89_Irocz
If a tpi engine is only made to rev up to 4600rpms then why does both of mine have a 5500 redline and there's where they shift.
Your asking me why a car designed for maximum HP at 4800 rpm's is shifting at 5500 rpm's?? Maybe you should be asking yourself this...

Originally Posted by iansane
With that logic you'd think the carb'd motor was the performance motor in turdgens and the tpi motor was the base engine.

Whereas we know they all suck.
And I would be wrong for thinking this

Originally Posted by robvas
A 350 TPI stops pulling long before 5500rpm
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Old 04-20-2006, 11:10 PM
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Re: How Many Revs = Too Many?

well I have a 85 LG4, and I`ve built it up and the redline was tossed out the window so to speak lol

it`s a rebuilt stock bottem end, no work done to the bottem end at all except new bearings and the valve train is stock except for the springs and this engine has been reved to 7000 and 6500-7000 MANY MANY times and had no problem at all. so to me the LG4 is one hell of a good engine and the LG4 is gonna find a new home in a 81 olds culass this summer hooked up to a th350.
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Old 04-20-2006, 11:20 PM
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Re: How Many Revs = Too Many?

You're saying you hit 7k all the time on stock valvetrain? Is that with or without valve float?
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Old 04-20-2006, 11:28 PM
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Re: How Many Revs = Too Many?

I hit 7000 twice and 6500 TONS of times, but the engine stoped pulling at around 6200 I just reved it higher because I could I diddn`t really care if the engine blow but it never did. but ya I couldn`t even count how many times my LG4 hit over 6500 about 6700-6800, If I was just messing around which was alot I`d shift 1-2 at around 6800, which yes there was valve float 6500 is the limit on a hyd cam, if I was racing I`d shift just over 6000 about 6200.
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Old 04-21-2006, 03:26 PM
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Re: How Many Revs = Too Many?

Originally Posted by 85_305
Your asking me why a car designed for maximum HP at 4800 rpm's is shifting at 5500 rpm's?? Maybe you should be asking yourself this...
mines not a stocker....
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Old 04-22-2006, 12:36 AM
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Re: How Many Revs = Too Many?

Originally Posted by iansane
You're saying you hit 7k all the time on stock valvetrain? Is that with or without valve float?
I used to hit 6.5 all the time before I rebuilt the motor

Originally Posted by 89_Irocz
mines not a stocker....
Unless you did work to your runners it's still gonna suck up top
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Old 04-22-2006, 10:57 AM
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Re: How Many Revs = Too Many?

I've had my tpi and heads ported and polished. Thinking about some slp runners..
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Old 04-22-2006, 02:02 PM
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Re: How Many Revs = Too Many?

^Well that's a different story than stock TPI runners Hoss And SLP runners would probably be a pretty damned sweet idea
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