Responsive

**Mecinoid** · 05-25-2009, 10:28 PM

Originally Posted by c5z28

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.... :

**c5z28** · 05-25-2009, 10:31 PM

Originally Posted by Mecinoid

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.... :

cool then, now sign up for that cruise!

**Mecinoid** · 05-25-2009, 10:35 PM

Originally Posted by TOMASINO

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.

**2000LS1Bird** · 05-25-2009, 10:42 PM

Originally Posted by xssesive

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.

**Mecinoid** · 05-25-2009, 10:43 PM

Originally Posted by c5z28

cool then, now sign up for that cruise!

Yeah, I think that is in the plans for this summer... ;-)

**MoNsTeR_LS1** · 05-26-2009, 06:05 PM

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

**Mecinoid** · 05-26-2009, 10:49 PM

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.

**Hi-Po** · 05-28-2009, 12:43 PM

Originally Posted by MoNsTeR_LS1

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.

**Dr.Crash** · 05-28-2009, 02:13 PM

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

**MoNsTeR_LS1** · 05-28-2009, 05:27 PM

Originally Posted by Hi-Po

You will not feel any more throttle response with 110. If anything, its going to kill performance.

kill performance? explain..

**00z28bubba** · 05-28-2009, 05:56 PM

Originally Posted by xssesive

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.

**c5z28** · 05-28-2009, 05:58 PM

Originally Posted by 00z28bubba

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.

**CJREX** · 05-28-2009, 06:20 PM

Originally Posted by MoNsTeR_LS1

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.

**Cutlass** · 05-28-2009, 06:32 PM

^^^^^Bingo!

**MoNsTeR_LS1** · 05-28-2009, 06:49 PM

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?

**MoNsTeR_LS1** · 05-28-2009, 06:51 PM

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

**Hi-Po** · 05-28-2009, 07:11 PM

Originally Posted by CJREX

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?