kilgorq

I ran my stang at firebird today for the first time for me and the car. On Run 1 and 2 I could not hook up in any gear. on runs 3 and four I hooked up ok off the line but lost it going into second. I also keep loosing power at 4000 RPM. This is a new (rebuilt) Stock 5.0 4 bbl with 5 speed and a 3.73 Posi rearend. I was expecting to be in the mid 14's but couldnt get out of the 15's. I know I have traction issue. I am running 16x9 wheels with 205/55/16 tires. I know to resolve this I need a bigger tire and better suspension. Any reccomendation would be great. What is the sock suspension limitation.

The rev limit part of it I am not sure what to do. I checked the timing and it is at 14 degrees the carb is a vacumm advanced holley 4180. The cam an lifters are stock for 85. I believe they should be good for 5500 RPM. How do I determine what gives here. With dumping 1000 bucks into parts. The motor will rev to 5.5K easily when it is unloaded. (Out of gear). The exhaust is stock with glasspack mufflers.

Reaction Time 60 Foot 330 Foot 1/8 Mile 1/8 MPH 1000 Foot 1/4 Mile 1/4 MPH 0.838 2.452 6.718 10.203 71.43 13.2 15.748 86.78 0.726 2.705 7.232 10.884 69.17 13.95 16.523 86.77 0.759 2.318 6.445 9.91 70.5 12.898 15.465 86.99 0.755 2.355 6.533 10.046 208.38 0 15.655 27.00

Little Easier to read.

Run 01 (Broke Loose 1 and 2)
Reaction Time---0.838
60 Foot---------2.452
330 Foot--------6.718
1/8 Mile-------10.203
1/8 MPH--------71.430
1000 Foot------13.200
1/4 Mile-------15.748
1/4 MPH--------86.780

Run 02 (Broke Loose 1 thru 3)
Reaction Time---0.726
60 Foot---------2.705
330 Foot--------7.232
1/8 Mile-------10.884
1/8 MPH--------69.170
1000 Foot------13.950
1/4 Mile-------16.523
1/4 MPH--------86.770

Run 03 (Best Time)
Reaction Time---0.759
60 Foot---------2.318
330 Foot--------6.445
1/8 Mile--------9.910
1/8 MPH--------70.500
1000 Foot------12.898
1/4 Mile-------15.465
1/4 MPH--------86.990

Run 04 (Obviously a track malfunction)
Reaction Time---0.755
60 Foot---------2.355
330 Foot--------6.533
1/8 Mile-------10.046
1/8 MPH--------208.38
1000 Foot-------0.000
1/4 Mile-------15.655
1/4 MPH--------27.000

PRO50SC

Maybe you're running out if fuel or there is an issue w/ the timing advance.

Your 60' times are killing you. Some sticky tires and some gears (if you don't have them) should help tremendously!

My wifes 90 vert is stock for the most part. I threw a set of slicks on, she has 3.55 gears and she ran a 14.32 @ 90 something(she lost the time slip) She was running consistant 1.9 60' times. Previously, her best time was a 14.80 @ like 91 Amazing what just a set of good tires can do.

86 5.0L

aint no f*cking way you're running a 9" rim with a 205 wide tire[&:]

PRO50SC

I was thinkin that too. Maybe it's a typo. What 16" rim came in a 9" anyway?

86 5.0L

some type of racing wheel maybe [&:]

kilgorq

Sorry Typo... Stock 16's from a 91 GT.

86 5.0L

only timeslip that tells us anything is #3, the first 2 you didnt get a good footing and the last one I wouldnt trust

but your 60' seems a abit high, GET BETTER TIRES!

other then that, how about a full tune-up? did you correctly set the timing? how many miles? any problems you're having/noticed? with 3.73s thats crazy

PRO50SC

That 60' is A LOT high!!!!

95 droptop

I would have a good look over of your car. I have a 94 auto vert with acouple of bolt ons and i run a 15.7 on bald tire.

kilgorq

1400 Miles on full rebuild of motor and trans. Carb was rebuilt and distributor came from a different car. I am starting to think maybe timing curve on the disty. Or something wrong with the secondaries in the carb.

Traction may be a problem with the rear. I just noticed the rubber from my burnouts was only on the passengers side not both like I would expect from a posi. May be time for a rebuild on the rear.