Ton's of mods = bad track time?

Cobra4075

Founding Member

Feb 18, 2002

286

1

17

Tinley Park, IL

Sep 22, 2004

#1

• Sep 22, 2004

• #1

My mods are listed below. I went to the track twice in the past month. Both with dissapointing results. The best time I could pull was 13.7 @102 and my best 60' time was a 1.9. The car launches hard, right away the notto's grab, and it bogs down bad. My top end feels weeker than I think it should be with my given mods. Is my trottle body too small? The plugs look good when I checked them. Any ideas?

 

gcomfx.com

Founding Member

Oct 22, 2002

3,690

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56

Republic, MO

Sep 22, 2004

#2

• Sep 22, 2004

• #2

Post a full timeslip.... it'll help the guys on here that know their stuff.

 

M

mackey

Active Member

Jan 25, 2003

1,284

1

38

Beverly, Massachusetts

Sep 22, 2004

#3

• Sep 22, 2004

• #3

ttt :[

 

M

mackey

Active Member

Jan 25, 2003

1,284

1

38

Beverly, Massachusetts

Sep 22, 2004

#4

• Sep 22, 2004

• #4

I am running the same with a bone stock car on street tires with a H/C/I no supporting mods And I had a 2.2 60'

 

Cobra4075

Founding Member

Feb 18, 2002

286

1

17

Tinley Park, IL

Sep 22, 2004

#5

• Sep 22, 2004

• #5

I'd have to look for it. I made about 13 runs. My timing is at 13 degrees @ WOT. How much more could I advance it with the aluminum heads? I aways said I would keep the car NA, but I'm about ready to put it on the bottle.

 

gcomfx.com

Founding Member

Oct 22, 2002

3,690

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56

Republic, MO

Sep 22, 2004

#6

• Sep 22, 2004

• #6

If it's not running right.... the bottle will definately FIND or CREATE a problem... but it'll be an expensive route.

Have you let anyone else run your car down the track? Find a buddy that is running good times in his and let him take a couple runs to see if it's you or the car. What are your shift points?

 

M

mackey

Active Member

Jan 25, 2003

1,284

1

38

Beverly, Massachusetts

Sep 22, 2004

#7

• Sep 22, 2004

• #7

I run 18* of timing. What is your FP set at. Vacuum Leaks?

 

zenboy99

Founding Member

May 12, 2002

2,212

0

47

Madison, WI

Sep 22, 2004

#8

• Sep 22, 2004

• #8

Where do you drag at? I frequent Cordova, Byron and Great Lakes dragway. If you're ever at one of those tracks my friends and I could try and help you out.

 

Cobra4075

Founding Member

Feb 18, 2002

286

1

17

Tinley Park, IL

Sep 22, 2004

#9

• Sep 22, 2004

• #9

My shift points are about 5700-5900 on the stock tac. I don't think I have a vacuum leak because the idle raises when I pull the line off to set the fuel pressure. Which is set at 43lbs. I go to Route 66 in Joliet.

 

DougNuts

Founding Member

Jul 11, 2000

2,596

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47

Georgetown Ky

Sep 22, 2004

#10

• Sep 22, 2004

• #10

You still have the stock upper intake?

Please post your entire timeslip.

 

Cobra4075

Founding Member

Feb 18, 2002

286

1

17

Tinley Park, IL

Sep 22, 2004

#11

• Sep 22, 2004

• #11

My slips are in the car which is not with me right now. The upper intake is the stock cobra intake.

 

Yellow302

Member

Mar 2, 2003

789

2

19

NJ

Sep 22, 2004

#12

• Sep 22, 2004

• #12

i dont think you have enough fuel im looking to add head and you should get 24's or up the FP to 50+ w/o vaccum, a few people said if you keep 19's up the pressure.

Sorry if you have 24's i dont see them in your list.

 

Cobra4075

Founding Member

Feb 18, 2002

286

1

17

Tinley Park, IL

Sep 22, 2004

#13

• Sep 22, 2004

• #13

They are the stock injectors which are 24lbs. It's a Cobra. I guess it couldn't hurt to raise the fuel pressure. Does anyone dyno tune near chicago? I've heard of a place in Gary, but I don't know the name. Speed inc. told me they don't deal with 5.0 liter only 4.6

 

zenboy99

Founding Member

May 12, 2002

2,212

0

47

Madison, WI

Sep 22, 2004

#14

• Sep 22, 2004

• #14

What are the stats on your JMS chip? Did they tell you to set the fuel pressure and timing at those points?

For my JMS chip I had to set fp at 39 psi and timing at 10 degrees.

YOu may want to try shifting a little bit higher. How about your clutch? Could that be slipping between shifts?

 

dstanggt50

Founding Member

Sep 13, 2000

1,316

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0

Woodinville, WA

Sep 22, 2004

#15

• Sep 22, 2004

• #15

I noticed you had a custom chip, did you get it burned @ a dyno??? If not, maybe take it to the dyno and see what you are pulling, that way you might be able to rule out if it was driver error or not.

 

RacerRick

20+ Year Stangneter

Jun 26, 2004

90

0

7

Ponchatoula, La.

Sep 22, 2004

#16

• Sep 22, 2004

• #16

13 degrees@ WOT..sounds like more timing would help.

 

zenboy99

Founding Member

May 12, 2002

2,212

0

47

Madison, WI

Sep 22, 2004

#17

• Sep 22, 2004

• #17

RacerRick said:

13 degrees@ WOT..sounds like more timing would help.

Click to expand...

The custom chip should have changed the whole timing curve.

 

G

green_drop

New Member

May 29, 2003

43

0

0

Sep 22, 2004

#18

• Sep 22, 2004

• #18

Cobra4075 said:

They are the stock injectors which are 24lbs. It's a Cobra. I guess it couldn't hurt to raise the fuel pressure. Does anyone dyno tune near chicago? I've heard of a place in Gary, but I don't know the name. Speed inc. told me they don't deal with 5.0 liter only 4.6

Click to expand...

Yeah I have been to Speed Inc. for my heads and cam and they told me a chip wouln't help me at all. However, all my buddies who have a chip are running more rwhp then me. Speed Inc. also frauds there dyno sheets. I saw to people with the exact same pulls. they both own ls1 T/As but no one should have the exact dyno pull. My suggestion like I am doing is gettting a P.M.S from anderson. They are helpful and friendly and it makes your car run like "wow".

 

cobra dave

New Member

Sep 1, 2003

308

0

0

Sep 22, 2004

#19

• Sep 22, 2004

• #19

This is definetly true; nos will make it show its ugly face if you are having issues and it's sounds to me that you are. You should have much better et's and 60ft. times. Good luck dude,

 

BlueZ71

New Member

Sep 15, 2004

2

0

0

Sep 22, 2004

#20

• Sep 22, 2004

• #20

Did you talk to FLP (Finish Line Performance) in Naperville. They have a dyno and may be able to help you.