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Thread: Shift points?

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    Junior Member Mystic Z-28's Avatar
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    Shift points?

    I'm trying to figure out what the stock LS1 valvetrain can handle as far as shift points. A lot of people say that 6500 is fine for stock stuff and some people say it's not? A friend of mine with a tuner set my shift points (in my A4) to 6300 and bumped my revv limiter to 6500. The car seems to pulls really hard all the way to 6300. No signs of valve float. The stock revv limiter was set at 6250, so shifting a mere 50 rpm's higher shouldn't be a problem right? Any input is greatly appreciated, thanks!

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    Junior Member Mystic Z-28's Avatar
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    bump

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    Veteran Firebirdjones's Avatar
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    If you are talking a stock LS1 valvetrain that hasn't had any valvetrain changes, new springs etc....

    They generally peak on the dyno around 57-5800 and then the HP starts falling off. Shifting at 6-6100 is about all that's needed. Not to mention the stock valve springs usually cause problems above that anyway. They are lucky to have 75 lbs. of seat pressure.

    You could easily upgrade to a simple LS6 valve spring or better yet, a double spring setup and have more high rpm stability.

    I've played around with shift points on my stock 02 SS. With the factory tune the 1-2 was occuring at 5,700, the 2-3 was occuring at 6,000.
    I did find a little ET by bumping up the 1-2 shift to 6,100, but I left the 2-3 shift point alone, and I left the limiter at the factory setting.

    I'm just not interested in finding the limits of the stock valvesprings. That generally results in bent pushrods and/or broken parts.

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    Senior Member bills98ta's Avatar
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    Yep... What He said.... You could at least upgrade to the comp 918 beehive springs, and a good set of hardened push rods. I revved those to 7000 and never had a problem. I'm running a dual spring set up now with a monster cam...

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    Junior Member Mystic Z-28's Avatar
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    Thanks for the replies, guys. I had the shift points turned down to 6,000 rpm. It's better safe than sorry I guess.

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    Senior Member Too Fast's Avatar
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    Quote Originally Posted by Mystic Z-28 View Post
    Thanks for the replies, guys. I had the shift points turned down to 6,000 rpm. It's better safe than sorry I guess.
    Good thinking.

    Unless you upgrade the pushrods/valvesprings, don't go past the stock rev limiter (6200).

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