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fast 90mm

This is a discussion on fast 90mm within the External Engine forums, part of the LSx Technical Help Section category; Originally Posted by jujofields I've always heard the same...at the very least a 3,600 stall; as a lower stall doesn't ...

  1. #21
    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by jujofields View Post
    I've always heard the same...at the very least a 3,600 stall; as a lower stall doesn't improve performance nearly as noticeably & those who have purchased lower stalls regret doing so...could be wrong, any opinions?
    i shaved .6 tenths of e.t from my 3000 rpm stall.
    anybody who says you wont get decent gains from anything lower than 3500 is full of shit.
    now i wouldnt get anything lower than 3000 though.

    heres a problem you dont hear alot of people talking about and thats the bigger the stall, the harder to hook .
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    T/A is in Bahrain! 13nickels's Avatar
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    Quote Originally Posted by nhraformula View Post
    i shaved .6 tenths of e.t from my 3000 rpm stall.
    anybody who says you wont get decent gains from anything lower than 3500 is full of shit.
    now i wouldnt get anything lower than 3000 though.

    heres a problem you dont hear alot of people talking about and thats the bigger the stall, the harder to hook .
    so its like flashing a stock coverter or do you have to hold the brake to get the rpms up. How does it work. Does it stay tight over time...i need to reserch this more. Interesting stuff. .6 tenths is pretty good, i like the sound of that. Do you do any scca racing, i dont want a strict drag car, i like the twisties too. Thanks for all the info BTW.

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    member since may 2000 nhraformula's Avatar
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    you can break torque it to the rpm or just stab it of the line.

    an aftermarket stall isnt just for off the line. it help with shift extension also.
    youll always be in the powerband much faster with a stall.

    i dont do scaa racing, but with corners youll be in lower RPMs and the converter will help you lots there.
    lets say your getting out of a turn and your engine rpm is 2000 and your in second gear, you stab the gas, the car will downshift into 1st and climb instantly to whatever stall speed rpm you have.

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    cutting and welding mark21742's Avatar
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    hey what is the stock stall set at? I was looking at installing one, but am just like 13 nickles, i have never drivin a stalled car and was worried about the daily drivablity.

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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by mark21742 View Post
    hey what is the stock stall set at? I was looking at installing one, but am just like 13 nickles, i have never drivin a stalled car and was worried about the daily drivablity.
    1800 rpm

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    T/A is in Bahrain! 13nickels's Avatar
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    Quote Originally Posted by nhraformula View Post
    you can break torque it to the rpm or just stab it of the line.

    an aftermarket stall isnt just for off the line. it help with shift extension also.
    youll always be in the powerband much faster with a stall.

    i dont do scaa racing, but with corners youll be in lower RPMs and the converter will help you lots there.
    lets say your getting out of a turn and your engine rpm is 2000 and your in second gear, you stab the gas, the car will downshift into 1st and climb instantly to whatever stall speed rpm you have.
    Ahh, I get it. That clears it up. Thank you. Looks like im buying a stall. Can you recomend i company that sells a good one. Also my car is almost at 100k prolly time to rebuild and install a shift kit.

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    let the F-Bodies roll jimmybling31's Avatar
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    Quote Originally Posted by 13nickels View Post
    Ahh, I get it. That clears it up. Thank you. Looks like im buying a stall. Can you recomend i company that sells a good one. Also my car is almost at 100k prolly time to rebuild and install a shift kit.
    well it might not need to be rebuild, but a shift kit always helps. I rebuilt mine because I screwed up a bunch of clutches in it (hot rodding the first couple weeks I had it)

    as for the converter go to fuddle racing. they are a sponsor on here. anything from them is great. I plan on getting their 3000 when everything settles down and I have cash again

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    cutting and welding mark21742's Avatar
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    Hey ya'll have helped again, don't worry 13nickles, I think a was just as much if not more in the dark as you on the whole torque converter thing (and I'm sure there are alot more out there like us) so... headers and some other minor bolt on mods, you would recomend about 3500 stall right?

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    15 sec. Oh yeah, its fast UTVols98's Avatar
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    Quote Originally Posted by 13nickels View Post
    Hey brother nice to finally talk to you. I was completely satisfied with my car until i saw your vid on youtube. Wow what nice car man. and also the reason i joined this forum. I plan on digging into the engine in a few months, cam heads, rockers, maybe even pull the motor and rebuild it with some goodies. Rebuild the tranny.
    I think I'll wait to buy a intake until i do that, Gotta save some money first. My goal is to have at least 400hp at the wheel. With these mods do you think i'll be close?
    With a new intake, heads, and cam you can easily get 400 rwhp with no problem. It's just that you need a bunch of supporting mods that will add up.

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    Slow'er'Ass Mr. Luos's Avatar
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    Just don't get too caught up in peak HP numbers.
    Might make 385RWHP but have such a powerband it beats 420RWHP cars.

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    15 sec. Oh yeah, its fast UTVols98's Avatar
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    Ex. a cam that has a large RPM power band. Might not peak as high of hp #'s but better low and mid range power.
    2000 Z28: Accufab 4150, Vic Jr. 150 shot, Patriot stg 2 heads, big cam, FLT Stg VI 4L60, S60 rear. Waaay more stuff to list. 3100 LBS.

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    Slow'er'Ass Mr. Luos's Avatar
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    Mid-sized cams.
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    Whoops. Just read your post again. Mis-understood it. I thought you were looking for examples.
    But yeah, longer powerbands are good.
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    15 sec. Oh yeah, its fast UTVols98's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    Mid-sized cams.
    224/224 to 232/232 around 590 to 600 lift.
    Make great DD cams too.

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    T/A is in Bahrain! 13nickels's Avatar
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    Thanks again to you all, ill write more later, i have to fly again today.

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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by 13nickels View Post
    Ahh, I get it. That clears it up. Thank you. Looks like im buying a stall. Can you recomend i company that sells a good one. Also my car is almost at 100k prolly time to rebuild and install a shift kit.
    i have used tci brand stalls for years in all my cars.
    currently i have a streetfighter 3000.
    when doing a stall, get a shift kit, oil cooler and converter tune.

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    15 sec. Oh yeah, its fast UTVols98's Avatar
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    Don't you mean a tranny cooler? And does the shift kit make that big of a difference.

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    let the F-Bodies roll jimmybling31's Avatar
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    Quote Originally Posted by UTVols98 View Post
    Don't you mean a tranny cooler? And does the shift kit make that big of a difference.
    yeah he meant tranny cooler. the shift kit will take a ton out of your shift time. it's instant time off your quarter.

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    15 sec. Oh yeah, its fast UTVols98's Avatar
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    I was thinking of getting one when I bought my stall, but didn't think it would make that big of a difference. Maybe I should have gotten it now. It works by letting you downshift, right?

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    let the F-Bodies roll jimmybling31's Avatar
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    Quote Originally Posted by UTVols98 View Post
    I was thinking of getting one when I bought my stall, but didn't think it would make that big of a difference. Maybe I should have gotten it now. It works by letting you downshift, right?
    not really. there are ones that do that, but the kit that i think is nice is the transgo and all it does it makes the shifts much more crisp and quick. it definitely helps your times. you can do the shift kit in 4-5 hours normally. less if you have messed with a tranny before. I makes a few changes to it. it's definitely nice though

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    15 sec. Oh yeah, its fast UTVols98's Avatar
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    My transmission has been having problems shifting at high rpm's. It sticks at 5300-5500 for a second and then shifts. Will the shift kit correct that?

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