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Responsive

This is a discussion on Responsive within the General Help forums, part of the LSx Technical Help Section category; Originally Posted by c5z28 For giggles and who ha's take the egr out and cut the portion of it that ...

  1. #41
    Member Since 1998 Mecinoid's Avatar
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    Quote Originally Posted by c5z28 View Post
    For giggles and who ha's take the egr out and cut the portion of it that goes down the manifold-free mod.
    Did that mod in '99. If you do it right you won't suck oil into your intake.

    It needs to be cut off with 1/4" of turbe still protuding into the area, cut off evenly , filed and then sanded smooth.

    Been there done that.... :

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    Quote Originally Posted by Mecinoid View Post
    Did that mod in '99. If you do it right you won't suck oil into your intake.

    It needs to be cut off with 1/4" of turbe still protuding into the area, cut off evenly , filed and then sanded smooth.

    Been there done that.... :
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    Quote Originally Posted by TOMASINO View Post
    thanks for the info i didn't know
    There is generally a tag on the differental with the ratio too. If it's a six speed most likely 3.42. If you bought it off another party the code / tag could be wrong. Another way to check is to put the wheels in the air and count how many times the driveshaft turns with one rotation of the wheel.

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    Quote Originally Posted by xssesive View Post
    My wifes 98 Trans Am has a 3.23 gear and I can tell you it will really set you in the seat! Much quicker off the line than my 2000 Camaro SS was with a 2.73 gear, and the SS had a dyno tune!
    Yep, gears.

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    Quote Originally Posted by c5z28 View Post
    cool then, now sign up for that cruise!
    Yeah, I think that is in the plans for this summer... ;-)

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    3.73 gears are great for an a4 in my opinion..if you wanna feel bettter throttle response try putting some 110 octane in it

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    I went to 3.73 gears and picked up .2-.3 in the quarter. I did this planning for forced induction. But, didn't see a huge difference in response. I did see some. The thottle body made the car jump nicely though. I agree gears are a must and will give a little better response. I was just shocked how such a cheap and easily done mod like thottle body made a larger difference in my opinion. It didn't give me much in quarter mile times. But, I'd say it improved my passing times by a couple of tenths at least. It's kind of hard to measure those however. I guess I need to get out the G-Tech and test it.

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    Quote Originally Posted by MoNsTeR_LS1 View Post
    if you wanna feel bettter throttle response try putting some 110 octane in it
    You will not feel any more throttle response with 110. If anything, its going to kill performance.

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    you just got used to it. happens to everyone. Im already thinking about my next Mod....

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    Quote Originally Posted by Hi-Po View Post
    You will not feel any more throttle response with 110. If anything, its going to kill performance.
    kill performance? explain..

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    Quote Originally Posted by xssesive View Post
    My wifes 98 Trans Am has a 3.23 gear and I can tell you it will really set you in the seat! Much quicker off the line than my 2000 Camaro SS was with a 2.73 gear, and the SS had a dyno tune!
    The 98+ ss hasn't been made with a higher gear than 3:23s.

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    Quote Originally Posted by 00z28bubba View Post
    The 98+ ss hasn't been made with a higher gear than 3:23s.
    Do you want to rephrae that he just stated the ss had 3.23's (a4) the m6's come with 3.42's-just reword your original phrase.

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    Quote Originally Posted by MoNsTeR_LS1 View Post
    kill performance? explain..
    Octane is a measure of resistance to detonation. Higher octane DOES NOT give more power.

    It DOES allow you to advance the timing which can give you more power.

    110 octane fuel will burn much slower than 87 octane or 93 octane. That is why it could lower performance.

    87 octane burns faster than premium, but it will "flash" or pre-ignite in a high compression engine, causing pinging or detonation. Both of which are not friendly to bearings.

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    cool..i havent ran it in my trans am but i put some in rsx i had LoL for some reason it gave it a lot bettter throttle response?

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    would it be better to run high octane fuels like that with nitrous?

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    Quote Originally Posted by CJREX View Post
    Octane is a measure of resistance to detonation. Higher octane DOES NOT give more power.

    It DOES allow you to advance the timing which can give you more power.

    110 octane fuel will burn much slower than 87 octane or 93 octane. That is why it could lower performance.

    87 octane burns faster than premium, but it will "flash" or pre-ignite in a high compression engine, causing pinging or detonation. Both of which are not friendly to bearings.
    Exactly. 110 does nothing for your measly 10.5 ish compression ratio. Step up to the big boy CR's and not only will it make power, it will be the only fuel you can run.

    There comes a point, pretty early, where adding timing does zero for performance and can only cause problems.

    Get it?

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    Quote Originally Posted by MoNsTeR_LS1 View Post
    would it be better to run high octane fuels like that with nitrous?
    Not really. Removing a certain amount of timing is required for N20 tune.

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    okay cool man..i just run 93 in mine all the time, im getting a tune in a couple weeks for nitrous

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    Quote Originally Posted by c5z28 View Post
    Do you want to rephrae that he just stated the ss had 3.23's (a4) the m6's come with 3.42's-just reword your original phrase.
    Remember lower numerically means higher gearing.

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