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View Full Version : Car not running the back half very hard.



BSonoma
10-05-2016, 10:08 AM
Gents,

Looking for a little advice. My Bird runs great down low. Low 1.80's in 60' Low 5.50's at the 330' and high 8.50's at 80 MPH in the 1/8th. Those are the down low numbers I expected with the mods I have on the car now (except 1/8 mile speed may be 1 MPH or 2 slow). Unfortunately it isn't running out the back the way I was thinking it should. It's running high 11.20's to 1000' and mid 13.50's at 98-99 MPH. Looking at comparable time slips at the track with other LT1 4th Gens, with similar bolt ons, there down low numbers are compareable, and in some cases slower to 60' by 7 or 8 hundredths, yet they are trapping 13.30's at 100-101 MPH. My mods are below. I'm wondering if I'm missing something. Does it need a little more HP (I mean when doesn't it) or could it be weight?

Long tube headers
3200 Stall Converter
CAI
Mail Order Tune by Solomon
Borla Cat back
3.42 Gears
Hoosier Quick time Pro 26" x 9.5" slicks

I appreciate some feedback.