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Dont feel bad on time first couple runs I made in an 89were in the 15s...then high 14s..was po'd.
Just a matter of getting used to it
Next trip out low 14s (sealevel 13.9) which is right where it should have been . Faster but still in last.
Running at the track different story than the st or a kid claiming times from a Gtech.
Not to high jack my own thread but that is about the best sans bumper 68-73 rear I have seen, any other pix?
Thank you sir! I removed the bumpers years ago due to a small accident that bent one of the rears. After having it off and seeing some vintage race cars I left them off. The more I looked at it I did not like the factory molding in the back so I cut it out and hung in some glass to get the smooth look. other than this pic and my avatar its the only rear pics of the car I have on my computer.
Back in the early 80's my '69 convertible ran a 12.30 @ 116. "70 LT-1 with a GM second design "off road" cam, tunnel ram with 2-450 holley's, 4.56 gears and an M-20 shifting at 7200 rpm.
This was at Keystone Raceway Park near Pittsburgh.
Back in the early 80's my '69 convertible ran a 12.30 @ 116. "70 LT-1 with a GM second design "off road" cam, tunnel ram with 2-450 holley's, 4.56 gears and an M-20 shifting at 7200 rpm.
This was at Keystone Raceway Park near Pittsburgh.
That's cool looking. She was making some steam with that MPH.
Yes, I've done it last week! With my self-built old scool .040 over 350cui. (357) Equipped with Comp Cam 290 ° mechanical camshaft, Team G Intake, proform 750 cfm dp, patriot block huggers.
4 speed M20, 3.70 axle.
I am fairly certain I can crack the 11 second barrier.......time will tell.
406 10.5 to 1 compression.
Dart PRO 1 Platinum heads
Team G
800 cfm worked Holley HP
Comp 292H Magnum cam
Hedman headers
No idea what mine would run learned speculating the hard way meaning a hp # doesnt mean it will run XXX .
Ill say 12s to be real safe. Find out come fall hopefully..what sucks is there are no tracks less than almost 2 hrs away except 1/8 which is a waste of time commuting just to hit 3rd and back out.
No idea what mine would run learned speculating the hard way meaning a hp # doesnt mean it will run XXX .
Ill say 12s to be real safe. Find out come fall hopefully..what sucks is there are no tracks less than almost 2 hrs away except 1/8 which is a waste of time commuting just to hit 3rd and back out.
Actually all your run is that first 1/8 , The majority of your speed will be attained by then and your time in the 1/4 is really all about that first 60' time and the 1/8 ....
Actually all your run is that first 1/8 , The majority of your speed will be attained by then and your time in the 1/4 is really all about that first 60' time and the 1/8 ....
How accurate are 1/8th to 184 calculators?
Originally Posted by Jebbysan
I am fairly certain I can crack the 11 second barrier.......time will tell.
406 10.5 to 1 compression.
Dart PRO 1 Platinum heads
Team G
800 cfm worked Holley HP
Comp 292H Magnum cam
Hedman headers
It runs VERY strong.......
Jebby
I hope youre right, I have a similar setup and would love to see that kind of time.
We have two cars, but our C3 hits low 11seconds in street trim and drops to the 10 second range when we hookup the NOS and mount the slicks on the track! It's a 327 with over 500hp! Redline set at 8200rpms! About 12.5 compression and we dial in 40+degrees of advance!
We can run a lot of tire in the back!
In this picture from that era, it is wearing the less aggressively wide street tires, but this picture will give you can idea of what sizes of rubber we were fitting with our homemade flat style flares (about 28" diameter was our limit, but we were unlimited on this car as to ultimate width within reason and on a C2/C3 suspension!)!
Last edited by TCracingCA; 08-27-2016 at 05:49 PM.
06-06-2016, 07:00 AM
This is absolutely true. The common conversion factor is 1/8 mile ET X 1.58 = 1/4 mile ET. It works very closely on my timeslips.
