need alot of help with my new 99 cobra

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duckhead08

New Member

Oct 26, 2006

25

0

0

philladelphia pa

Oct 26, 2006

#1

• Oct 26, 2006

• #1

i just baught a 99 cobr. first thing i did was buy a tuner <diablo predator> i think i set the rev limiters to high the call is fully stock only thing on it right now is cold air induction , need to no what the limiters shoud be set at for a stock cobra. also looking to get new gears for the rear and was wondering if there is any truth to the fact that cobras rev out higher and i should go with a bigger gear then 390s

 

blackfang

Founding Member

Dec 17, 2001

1,290

1

39

Richmond, Va

Oct 26, 2006

#2

• Oct 26, 2006

• #2

No higher than 6800 rpm(what is stock) otherwise you will do damage to the valve train as the stock springs and all cant handle 7-7500 rpms..

Gearing for a NA car would be 4.10's or 4.30's for an IRS cobra.

 

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duckhead08

New Member

Oct 26, 2006

25

0

0

philladelphia pa

Oct 27, 2006

#3

• Oct 27, 2006

• #3

k havent really put past 6 yet anyway but i tokk the limiters off and just wanted to be safe thanks fang

 

BlackenedSVT

Active Member

Jan 18, 2004

1,841

7

38

New Jersey

Nov 4, 2006

#4

• Nov 4, 2006

• #4

why take the rev limiter off???

 

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duckhead08

New Member

Oct 26, 2006

25

0

0

philladelphia pa

Nov 5, 2006

#5

• Nov 5, 2006

• #5

kinda seemed like a good idea at the time . seemed like they where set really low and i dident wanna be in 3rd gear between stop signs.

 

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duckhead08

New Member

Oct 26, 2006

25

0

0

philladelphia pa

Nov 5, 2006

#6

• Nov 5, 2006

• #6

what kinda rear do i have ????

i have a 99 cobra and i no i have 28 spline axle but what size rear is it. is it an 8.8?

 

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thomas91169

I'd donkey punch my sister.

Aug 19, 2005

0

0

0

Modesto, CA

Nov 5, 2006

#7

• Nov 5, 2006

• #7

duckhead08 said:

kinda seemed like a good idea at the time . seemed like they where set really low and i dident wanna be in 3rd gear between stop signs.

Click to expand...

umm are you talking about shift points or rev limiters?

 

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svtpower

New Member

Apr 30, 2005

257

0

0

Wisconsin

Nov 5, 2006

#8

• Nov 5, 2006

• #8

well

Keep the rev limiters at 6800, no reason to rev past that. I don't understand what you are talking about in 3rd gear thing.

Yes you have an 8.8 rear end and need the standard ford 8.8 gears even though it's an IRS. checkout svtperformance . com and read the FAQ section on your car. Then AFTER READING THAT, if you still have any questions, ask away.

 

COBRA90GT

Mustang Master

Sep 22, 2001

6,654

0

87

HOCKEYTOWN ® , MI

Nov 6, 2006

#9

• Nov 6, 2006

• #9

duckhead08 said:

i have a 99 cobra and i no i have 28 spline axle but what size rear is it. is it an 8.8?

Click to expand...

Yes, 8.8.

 

cradicg

New Member

Oct 9, 2005

92

0

0

Pennsylvania

Nov 7, 2006

#10

• Nov 7, 2006

• #10

Was your 99 intake fixed?

Not all 99's suffered the dreaded lost power issue (according to SVT). Check these websites out and call SVT to run your VIN. A dyno is a sure fire way to verify your pride and joy is up to snuff, and a factory trained tuner can safely tweak your car on the dyno for best performance.

http://mysite.verizon.net/txsnakecharmer/techman1.htm

and for LOTS of Cobra info...

http://mysite.verizon.net/txsnakecharmer/tech.htm