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Old Aug 29, 2007 | 03:01 PM
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I searched and couldn't find much. I just bought a 1998 Trans Am and i was wondering what kind of free mods there are. thanks in advance..
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Old Aug 29, 2007 | 03:19 PM
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free ram air mod - cut out restrictive plastic under air filter

ported throttle body - few hp better throttle response

bump stop - allows throttle body to open to almost 90 degrees at wide open throttle instead of lower 80's..

throttle body bypass - lets engine collant bypass the TB to keep temperatures down

EGR / AIR delete - getting rid of useless emmissions ****.

drill mod - for M6 - remove restriction to allow clutch fluid to move faster and let the clutch operate quicker.

hose mod - take out big rubber things on top of rear springs and replace with garden hose to drop car out 3/4" - 1"

any weight reduction you can think of - spare tire, jack, rear seats, etc.

driver mod - learn to drive it like you stole it!!

www.installuniversity.com - then LS1 - then install documents
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Old Aug 29, 2007 | 06:22 PM
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A 98 huh? Free mods have probably already been done.
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Old Aug 29, 2007 | 07:41 PM
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Yeah any free mod with the throttle body is definitely worth while.
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Old Aug 29, 2007 | 07:45 PM
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Originally Posted by '99bluez
free ram air mod - cut out restrictive plastic under air filter

ported throttle body - few hp better throttle response

bump stop - allows throttle body to open to almost 90 degrees at wide open throttle instead of lower 80's..

throttle body bypass - lets engine collant bypass the TB to keep temperatures down

EGR / AIR delete - getting rid of useless emmissions ****.

drill mod - for M6 - remove restriction to allow clutch fluid to move faster and let the clutch operate quicker.

hose mod - take out big rubber things on top of rear springs and replace with garden hose to drop car out 3/4" - 1"

any weight reduction you can think of - spare tire, jack, rear seats, etc.

driver mod - learn to drive it like you stole it!!

www.installuniversity.com - then LS1 - then install documents

wow great list man. did all that with the exception of the hose mod
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Old Aug 30, 2007 | 12:54 AM
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Originally Posted by TORCHD 02 TA
wow great list man. did all that with the exception of the hose mod
i think the hose mod is great!! Lowered my rear a full 1" for free. Got the hose off a friend who did it to his formula.
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Old Aug 30, 2007 | 12:11 PM
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x2 the hose mod works great!
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Old Aug 30, 2007 | 12:14 PM
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Well looks like ill have to try the hose mod
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Old Sep 10, 2007 | 01:50 PM
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So the hose mod lowers the rear, but what about the front? Wouldn't it look kind of funky without the front being dropped as well?
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Old Sep 10, 2007 | 02:08 PM
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i have done a few of these on my 98 T/A...they DO work!!!
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Old Sep 10, 2007 | 03:34 PM
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WTF? Hose mod? Garden hose? Never heard of this one
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Old Sep 10, 2007 | 03:43 PM
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me neither,,,,and as someone else added,,ould'nt that make it look your always going up hill!!??
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Old Sep 10, 2007 | 03:47 PM
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i couldn't find the hose mod on installuniversity.com, anyone have a write up on it?
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Old Sep 10, 2007 | 04:47 PM
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Originally Posted by Bad Blue WS6
me neither,,,,and as someone else added,,ould'nt that make it look your always going up hill!!??
the back of camaros always looks higher than the front stock
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Old Sep 10, 2007 | 05:20 PM
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As far as the front looking to high - it shouldn't. Most peoples cars sit higher in the rear and lower in the front. The hose mod should even it out. If your car already appears to sit even then i wouldn't recommend doing this.

Mini write up:

- use a tape measure and measure the distance from the ground to the top of the wheel well - where the rear 1/4 pannel starts. This is for before and after results.

- break the lugs loose on the wheels. Jack up the car on the rearend just infront of the pumpkin. Then lower the car onto 2 jacks - 1 on each side of the frame.

- take off rear wheels

- unbolt bottom of shock

- lower the jack that is under the rear

- rear will lower

- remove spring (be careful - it takes a good amount of effort to pull it out)

- rubber isolater will just fall out

- cut off a section of 5/8" garden hose and start feeding it onto the top of the coil. You only need to go around 1 full time. You need just enough so there is no metal on the top of the spring touching the metal of the car. Its kind of hard to get the hose to slide on, so WD40 will help.

- put the spring back in

- tighten bolt on shock (don't remember the specs.) May have to adjust rear to get the height to line up.

- raise the rear, put on the wheels & remove the jack stands

- lower the car to the ground and torque the lugs.

- measure the distance from the ground to the wheel well again to see your differences.


I think thats about it!! Tell me if it all makes sense.
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Old Sep 10, 2007 | 05:31 PM
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I did a write up for the hose mod, its in my sig.

And for the front you could clamp a coil together to even it out. let me know if you want more info
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Old Sep 11, 2007 | 12:06 PM
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Does that look like it's in acceleration???
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Old Sep 12, 2007 | 07:48 AM
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to me it does but it could just be the angle of the picture and the driveway. Was interested in doing this because my rear sits pretty high and I dont want to lower the whole car until I get new shocks. Also, I am assuming if you do this and do not like how it looks for whatever reason, you can go back to stock without any issues?

Last edited by Fb0dy0nly; Sep 12, 2007 at 07:56 AM.
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Old Sep 12, 2007 | 01:13 PM
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yup, going back to stock is a matter of taking out the rear spring again, removing hose, and slapping the upper mount back in. I'll try to get some better pics on level ground.
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Old Sep 12, 2007 | 05:35 PM
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I would like to see those, especially with the SS wheels because they are the same size as my ZR1s.
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