What kind of numbers should I be making?

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DavidCroft

Founding Member

Mar 16, 2002

194

0

0

Sugar Land TX(Houston Area)

Jul 24, 2007

#1

• Jul 24, 2007

• #1

The reason I ask is because this is the first time I ever had a GT up on the dyno. It's always been my Cobras previously. I kinda didnt know what to expect. As far as performance mods go for power...I really only have a JLT CAI, BBK 70mm, Trickflow plenum, O/R X pipe and Borla Stingers.

The shop installed 4.10s yesterday and chip&tune. It feels so much better to be in a car with gears. My old 97 had 4.56s and I loved banging through those gears. 4.10s seem alright for the GTs. I guess I just need some more power.

Before I reveal my numbers...just kinda testing the waters to see what you guys opinions are.

 

goshia

New Member

Jul 1, 2005

252

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Mead, Colorado

Jul 24, 2007

#2

• Jul 24, 2007

• #2

I would guess 248RWHP and 280 RWT

 

d98gt

Founding Member

Mar 14, 2002

4,505

59

204

SE Texas

Jul 24, 2007

#3

• Jul 24, 2007

• #3

You get it on the dyno in Houston? What kind of dyno was it?

I figure you are putting down 245-250

 

S

ShapeShifter

Member

Jun 5, 2006

85

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7

Jul 24, 2007

#4

• Jul 24, 2007

• #4

258/303

 

Crzyhrse

Active Member

Dec 23, 2004

0

2

38

Seattle, WA

Jul 24, 2007

#5

• Jul 24, 2007

• #5

I'd say 250 at most on a dynojet with a 5 speed. You'll be 5RWHP lower with your 4.10's, so whatever number you got just add that to it for what you'd have with stock gears.

 

D

DavidCroft

Founding Member

Mar 16, 2002

194

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0

Sugar Land TX(Houston Area)

Jul 24, 2007

#6

• Jul 24, 2007

• #6

I dynoed 245 RWHP and he wasn't able to get TQ figures cause it was messed up. My guess would be around 280 RWTQ. So I should add 5 RWHP for the gears? I always knew gears played with the dyno #s.

 

Stan Weiss

Member

Dec 8, 2006

347

2

16

Philadelphia, PA

Jul 24, 2007

#7

• Jul 24, 2007

• #7

DavidCroft said:

I dynoed 245 RWHP and he wasn't able to get TQ figures cause it was messed up. My guess would be around 280 RWTQ. So I should add 5 RWHP for the gears? I always knew gears played with the dyno #s.

Click to expand...

That is interesting, since all the dynos that I know of measure torque and RPM and calculate HP. If you have a HP plot ver RPM the torque can be calculated.

 

D

DavidCroft

Founding Member

Mar 16, 2002

194

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0

Sugar Land TX(Houston Area)

Jul 24, 2007

#8

• Jul 24, 2007

• #8

I thought it was strange that he said that too. Oh well, might not have wanted to pull the figures up. This seriously was a waste of his time to tune my GT with all those crazy 4Vs that go through there making crazy #s!

 

D

DavidCroft

Founding Member

Mar 16, 2002

194

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0

Sugar Land TX(Houston Area)

Jul 24, 2007

#9

• Jul 24, 2007

• #9

d98gt said:

You get it on the dyno in Houston? What kind of dyno was it?

I figure you are putting down 245-250

Click to expand...

Ya at Strictly. Richard is a very good guy and I trust him 100% after he went in and fixed all of Mike Murillo's nightmares on my old 4V.

 

XtorT'r

New Member

Jun 11, 2003

381

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Minnesota, YAAA

Jul 24, 2007

#10

• Jul 24, 2007

• #10

longtubes......

 

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DavidCroft

Founding Member

Mar 16, 2002

194

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0

Sugar Land TX(Houston Area)

Jul 25, 2007

#11

• Jul 25, 2007

• #11

XtorT'r said:

longtubes......

Click to expand...

Longtubes, Heads and cams are next round of mods. Along with Pullies. I just got this thing about 5 months ago 100% bone stock. It's gonna take a while.