Suggestions on gearing

R

ruunk50

New Member

Oct 9, 2006

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Oct 9, 2006

#1

• Oct 9, 2006

• #1

I just picked up a 1990 gt conv. auto and i'm a little dissappointed with the performance off the line. It pulls good over 30 mph, but below it's kinda sad.
This is my first GT, and it's not a daily driver, just a fun toy. I have added Flowmasters and an offroad pipe, but want more, any help would be appreciated.

 

Snikt89GT

New Member

Sep 6, 2006

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Deland, Florida

Oct 9, 2006

#2

• Oct 9, 2006

• #2

You need 3.73 gears

 

G

GTOreturns

Well-Known Member

Oct 1, 2003

51

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West Coast Best Coast

Oct 9, 2006

#3

• Oct 9, 2006

• #3

yup 373's.But more importantly get a high speed stall! It will turn it into a new car!

 

Snikt89GT

New Member

Sep 6, 2006

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Deland, Florida

Oct 9, 2006

#4

• Oct 9, 2006

• #4

Might want to dump the AOD too and get a T5/TKO, unless you like that specifically.

 

R

ruunk50

New Member

Oct 9, 2006

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Oct 9, 2006

#5

• Oct 9, 2006

• #5

GTOReturns said:

yup 373's.But more importantly get a high speed stall! It will turn it into a new car!

Click to expand...

How high would you go.

 

Snikt89GT

New Member

Sep 6, 2006

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Deland, Florida

Oct 9, 2006

#6

• Oct 9, 2006

• #6

ruunk50 said:

How high would you go.

Click to expand...

I've always heard a couple of hundred RPM below the peak torque. So maybe 2700 RPM

 

R

ruunk50

New Member

Oct 9, 2006

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Oct 9, 2006

#7

• Oct 9, 2006

• #7

Thanks.

 

G

GTOreturns

Well-Known Member

Oct 1, 2003

51

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59

West Coast Best Coast

Oct 9, 2006

#8

• Oct 9, 2006

• #8

Depends on the brand. The 2 best converters for 5.0's are Edge and Presision Ind. Guys with the Edge swear by the 3000stall. I have the precision Industries and have a 2800 with stock cam. Its a little too big. If your keeping the stock cam go for the 2400

 

Chuckman

GTFO you fat, heavy bastard

15 Year Member

Oct 21, 2005

1,604

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173

st. louis, mo

Oct 9, 2006

#9

• Oct 9, 2006

• #9

forget the 3.73's and go for 4.10's, made a HUGE difference on my car.

 

Roland69

Sergeant Tangnet

Sep 17, 2005

2,867

2

58

Port Elgin, Ontario

Oct 10, 2006

#10

• Oct 10, 2006

• #10

automatics like 4:10's and 5 speed's like 3:55's or 3:73's IMO


I like my 3:55's in my 5 speed

 

90

Active Member

Sep 24, 2006

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Michigan insane asylum

Oct 10, 2006

#11

• Oct 10, 2006

• #11

i heard that anything higher then a 3:73 sucks to drive fast, like over 50mph... or not to drive on the freeway.. i have a 3:73 and i dont have any probs with it at all..