GT modification question(s)

A

alfman9

New Member

Apr 9, 2004

217

0

0

Florida

Apr 9, 2004

#1

• Apr 9, 2004

• #1

I have had my GT for about a year and 3 months now and am looking at a couple of mods and would like some feed back from anyone with experience on these parts. I already have a Borla cat-back on the car and a drop-in K&N w/ silencer removed. Until last week had a bbk cai. After reading some forms about the cai I removed it and now the car idles smoother and doesn't stummble at about 4200. Unfortunately, I've got the auto trans . I was thinking about getting:

Catted x-pipe probably (bassani or magnaflow?)

accufab t/b and pleumn (70mm or 75mm?)

Steeda timing adjuster

k&n fipk or volant cold air kit

What can yall offer for advice?

 

J

JoeySperz

Founding Member

Sep 11, 2002

305

0

0

Mountainside, NJ

Apr 9, 2004

#2

• Apr 9, 2004

• #2

GEARS!!!!!! You will definitely feel the difference with the gears, especially in an auto. I would suggest a 4.10 gear ratio for an automatic.

 

J

JoeySperz

Founding Member

Sep 11, 2002

305

0

0

Mountainside, NJ

Apr 9, 2004

#3

• Apr 9, 2004

• #3

A set of underdrive pullies wouldn't hurt either. But gears will give you the biggest gain you will feel.

 

twogts4us

15 Year Member

Apr 1, 2004

4,188

12

79

Dunedin, FL

Apr 10, 2004

#4

• Apr 10, 2004

• #4

Yup, I with these guys - go gears, you'll love em! Best bang for the buck - you'll wonder how you ever lived without them. 4.10s for the automatic. Figure on spending about $400 for parts and labor.
Then, IMO, I'd:
Accufab 70mm (75mm if you plan to S/C) and Accufab plenum.
C&L 85mm MAF and Trueflow tube or (if you plan to S/C) Pro M MAF and AFM Powerpipe
Bassani X pipe
Steeda Underdrive pulleys
Steeda Timing Adjuster (especially useful here in FL where you can dial it back a bit during the dog days of summer when its 90+ degrees and 90+% humidity, then crank it up for our couple months of 'winter' !
New pair of shades...

 

H

HogStang

New Member

Mar 25, 2004

193

0

0

Apr 10, 2004

#5

• Apr 10, 2004

• #5

Now that we're on gears and automatics.. do you guys think it was a bad idea for me to go with the 3.90's on my 03 gt? (auto).. I didn't want to have my RPMs as high as the 4.10's while traveling freeway.. so.. I think I made the right decision.. what do you guys think? (I haven't got them installed yet, so I can't tell 1st hand how much of a difference I've gotten yet)

 

J

Jonny'00GT

New Member

Jan 30, 2004

17

0

0

McKinney, TX

Apr 10, 2004

#6

• Apr 10, 2004

• #6

4:10s, 4:10s, 4:10s!!!
I hear a chip is awsome for the autos too, but you might want to get more mods under your belt first. It's really supposed to help the shifts.

Gears - pulleys - T/B & Plenum together - Long Tubes & Mid Pipe of your choice (no cats) - Chip(won't need MIL Elim for no cats or Timing Adjuster...all done with the chip.

That's my 2 censt for a good starting point...

 

A

alfman9

New Member

Apr 9, 2004

217

0

0

Florida

Apr 10, 2004

#7

• Apr 10, 2004

• #7

Gears are a little too hard core for me at this point. Why is it that people only suggest the 75mm t/b for supercharged applications. Shouldn't it be the bigger the better , with it flowing more air=more power? Does any one have Any ideas to make my borlas scream?

 

H

HogStang

New Member

Mar 25, 2004

193

0

0

Apr 10, 2004

#8

• Apr 10, 2004

• #8

Well.. I'm getting a JMS Superchip installed with my 3.90 gears.. will I feel a huge difference from stock? (03 GT Auto)