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Free mods.... Which to do, Which to leave out

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Old May 9, 2002 | 11:56 PM
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iroc_cragg's Avatar
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From: Calgary Ab Canada
Free mods.... Which to do, Which to leave out

Hey

I have seen that alot of people have cut down the 1/4 mile times by .4 to .8 seconds with the free mods. I am looking to cut some time of my 1/4 mile. Which free mods should I consider doing. Which free mods work the best without screwing somthing up in my car. Which free mods should I say aways from totally.

Thanks
http://camaroz28.cardomain.com/id/56424

Last edited by Ed Maher; May 10, 2002 at 01:45 PM.
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Old May 10, 2002 | 01:41 AM
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Bort62's Avatar
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Don't Gut your MAF.
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Old May 10, 2002 | 01:22 PM
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TBurke's Avatar
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Cut the bottom of the air filter housings out.
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Old May 10, 2002 | 02:00 PM
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Scott 88 GTA's Avatar
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From: Stuarts Draft, VA
Car: 88 GTA
Engine: modified L98
Transmission: 700r4
Axle/Gears: 3.27 9-bolt
Originally posted by Bort62
Don't Gut your MAF.
I second that. You can remove the screens, at least the one on the engine side (why it's there I could never figure out), with out affecting it. But I always felt that there was a reason that Bosch put those heatsinks in the MAF. And if you slip even once and cut the hot wire you're screwed.
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Old May 10, 2002 | 09:32 PM
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From: Mass
Engine: 350 TPI
Transmission: A4
Axle/Gears: 3.23
1. cut air boxes
2. grind down the casting walls in the plenum.
3. advance timing a bit 10 degrees BTDC
4. remove front sway bar( track only!!!!!)
5. better yourself at the track with your car. being consistant helps. your car might run 14.2 all day long. give it Even Smith and he will run 13.8 with it. its all on how you drive
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Old May 13, 2002 | 10:13 AM
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Omega's Avatar
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From: Northern NJ
Car: 89 Formula / 09 G8
Engine: LS1 / LS3
Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
There is also the TB coolant bypass. It cuts off the coolant from running through the TB.. therefore not heating the air. It should be in the tech articles.
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Old May 13, 2002 | 12:58 PM
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From: webster, ny
what does taking the front sway bar off accomplish?
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Old May 13, 2002 | 01:16 PM
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It helps with weight transfer. Allowing the front end to rise planting more weight on the rear tires. this should help with traction. Also, it drops about 30 to 40 lbs of weight off the front end.

Also, any other weight removed will help et.s . Drop the spare and jack/ extra stereo equipment. If your A/C doesn't work anymore remove it/Smog pump(if you want to get away with this).
You can drop a good amount of weight. Also, for the track if you can get some light "skinny : front rims slash tires it will help.
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Old May 13, 2002 | 01:32 PM
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Omega's Avatar
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From: Northern NJ
Car: 89 Formula / 09 G8
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Transmission: M6 / M6
Axle/Gears: 3:42 / 3:27
Taking the front sway bar off allows faster weight transfer to the rear wheels, therefore better traction (plus a little weight reduction at the same time) This is mainly used in drag racing only. I don't recomend taking it of when a draily driver.
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Old May 13, 2002 | 01:47 PM
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From: webster, ny
yeah, thats waht i thought it was for, didnt think the think weighs that much,lol
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Old May 13, 2002 | 05:09 PM
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From: Tucson
Car: 1987 IROC-Z
Engine: 305 TPI
Transmission: T5
Where the TB meets the plenum, there is a bit of restriction there, you can grind down the restrictions to get better flow, as well as port the plenum, runners, and siamese the base 2 inches in. Make that baby breath

Make a ram air setup, it's not free but it'll only take about 20 bucks out of your pocket.
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Old May 14, 2002 | 07:44 PM
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ir0cz's Avatar
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
Originally posted by BOTTLEDZr28
1. cut air boxes
2. grind down the casting walls in the plenum.
3. advance timing a bit 10 degrees BTDC
4. remove front sway bar( track only!!!!!)
5. better yourself at the track with your car. being consistant helps. your car might run 14.2 all day long. give it Even Smith and he will run 13.8 with it. its all on how you drive
That Evan Smith is a BAD ****.
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Old May 14, 2002 | 10:07 PM
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Just be SURE when you cut the bottoms out of your air boxes that you dont cut the lip in which your filters sit. I've seen that done WAY too many times.....
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Old May 14, 2002 | 10:17 PM
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From: Ocean, NJ
Car: Check The Sig
what is a good tool to grind down the walls in the plenium? will a dremel do?... aight peace
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Old May 15, 2002 | 01:20 AM
  #15  
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From: Tucson
Car: 1987 IROC-Z
Engine: 305 TPI
Transmission: T5
A dremel tool will work fine

just get good tips
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Old May 15, 2002 | 06:57 AM
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
DP
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Old May 15, 2002 | 06:59 AM
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
i did the i the air box gut and boy does it help out alot. i picked some power up top(w/K&N's). does that tb bypass really help??? or it helps theorectically? i've been thinking about doing it but i dunno..?
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Old May 15, 2002 | 06:00 PM
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From: Tennessee
Car: '89 RS
Engine: 9C1 w/ TPI
Transmission: rebuilt 700R4
Originally posted by mystikkal_69
i did the i the air box gut and boy does it help out alot. i picked some power up top(w/K&N's). does that tb bypass really help??? or it helps theorectically? i've been thinking about doing it but i dunno..?
Why not do it anyways....it couldnt' hurt anything....if you do it and get some power...great, if you do it and dont gain any power, oh well, you haven't lost anything....the only purpose of the coolant running through the TB is to keep the blades from freezing...and you live in TX, so you dont have to worry about it.
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