Racing A Cobra
Thread Starter
Racer
Joined: Aug 2006
Posts: 345
Likes: 0
From: Lake City AR
No all I sprayed the stang with was 100 I have never sprayed the car with the 150 and I have the timing on the car backed down 8 degrees for the 100 shot so my timing is backed down 2xs what is recommened per 50 shot "Most say 2 degrees per 50".
My tuner wants me to start spraying at 2500 but I haven't "fingers crossed" had any probs yet spraying it at 2250 and I have sprayed it at as low as 2000 with the 100 shot. The way my system works is the solinoids are actavated with the a postitve by my NX TPS switch and then my digital MSD box gives the negative to them once it hit the programmed rpm I select for it.
Stock 3.15 gears and stock convertor the best I can stall it up to is 1450-1500 rpm. I'm hopeing that it can hook good enough that I can raise the tire pressure up to 30 psi and get it moving out of the gate better. Even if it spins the wheels a couple feet thats usually when it runs the best. My typical 60' is low 1.9s on the motor. Its once the car gets moving that it comes to life.
The race is not happening till the 25th.
My tuner wants me to start spraying at 2500 but I haven't "fingers crossed" had any probs yet spraying it at 2250 and I have sprayed it at as low as 2000 with the 100 shot. The way my system works is the solinoids are actavated with the a postitve by my NX TPS switch and then my digital MSD box gives the negative to them once it hit the programmed rpm I select for it.
Stock 3.15 gears and stock convertor the best I can stall it up to is 1450-1500 rpm. I'm hopeing that it can hook good enough that I can raise the tire pressure up to 30 psi and get it moving out of the gate better. Even if it spins the wheels a couple feet thats usually when it runs the best. My typical 60' is low 1.9s on the motor. Its once the car gets moving that it comes to life.
The race is not happening till the 25th.
Thread Starter
Racer
Joined: Aug 2006
Posts: 345
Likes: 0
From: Lake City AR
Well the date finally came and the Cobra wasn't able to show up. But I did get to line up with a new GT500 with a KB supercharger an a few other mods an beat up on him instead!! lol
My car went 11.33 @ 124mph to the GT500's 11.55 @ 125
Yes I do have video just gotta get it transfered then I will post it up
My car went 11.33 @ 124mph to the GT500's 11.55 @ 125
Yes I do have video just gotta get it transfered then I will post it up
Last edited by RIP1976; Sep 26, 2007 at 03:30 AM.
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
IF he dynoed 330whp (which I cant see how when I only dynoed 315 with mods in sig) motor only, then 150 shot and the added mods IS eneough to beat the slobra or AT LEAST be side by side with the cobra, you have to factor in the 500-600 lb difference the cobra has
Last edited by Corvette Don; Sep 26, 2007 at 10:49 PM.
Le Mans Master
Joined: Jun 2006
Posts: 6,979
Likes: 31
From: Wichita KS
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Burning Brakes
Joined: Sep 2007
Posts: 1,212
Likes: 2
From: fort hood tx
Well the date finally came and the Cobra wasn't able to show up. But I did get to line up with a new GT500 with a KB supercharger an a few other mods an beat up on him instead!! lol
My car went 11.33 @ 124mph to the GT500's 11.55 @ 125
Yes I do have video just gotta get it transfered then I will post it up
My car went 11.33 @ 124mph to the GT500's 11.55 @ 125
Yes I do have video just gotta get it transfered then I will post it up
was that with the 150 shot
Last edited by blkdevl; Sep 27, 2007 at 08:40 AM. Reason: add on
Intermediate
Joined: May 2007
Posts: 47
Likes: 0
From: Canton GA
I think some of you are underestimating the cobra. I had an 03 cobra with same mods minus the et streets and I was putting down 472 rwhp and 494 rwtq. I could never hook at the track but I was trapping at 119 mph. With et streets, and a good driver, he should be around 11.5-11.6. This will in no way be a stomping on anyones part.
Instructor
Joined: Apr 2007
Posts: 225
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From: MCMINNVILLE TN
Cobra Vs. Vette
OK GUYS NOT TO BANG ON A FORD (MY OTHER TOY IS A 500HP LIGHTNING, GOD I LOVE TORQUE) BUT WHEN A COBRA HAS A UPPER PULLEY RATHER THAN A LOWER EVERYONE KNOWS THE BELT SLIPS. THE ONLY REASON ANYONE EVEN BUYS THOSE THINGS IS THEY ARE CHEAP. EVEN IF THE CAR DYNOED WELL A LITTLE WARE ON THE BELT AND IT SLIPS THEN THE TUNE IS NOT AS ACCUATE CAUSE BOOST IS NOT AS HIGH AT ANY GIVEN RPM. THAT BEING SAID THAT CAR IS HEAVY, SO KNOWING THE WEIGHT OF THE CARS AND AVERAGE POWER OUTPUT OF BOTH CARS(WITH SAME MODS). THE COBRA IS GOING TO GET STOMPED. BESIDES A FRIEND OF MINE HAD AN 04 WITH CAI, FULL EXHAUST AND A 10# LOWER WITH A DYNO TUNE. THE BEST IT COULD PULL ON THE STREET WITH DRAG RADIALS WAS A 12.46 (THANKS TO MY GTECH ) AND HE ONLY MADE 446 RWHP ON A MUSTANG DYNO. NEEDLESS TO SAY IT WAS SOLD BEFORE ANY TRACK TIMES WHERE MADE BUT HIS NEW VETTE IS NICE
Thread Starter
Racer
Joined: Aug 2006
Posts: 345
Likes: 0
From: Lake City AR
Ok here his the video
http://exoticvideo.vidiac.com/video/...b500e22a1a.htm
An actually my car only dynoed 320hp/333 tq an my spray came on at 2500 an yes that is with no convertor an 3.15 gears an as Jim "Hex" at SW Tuning calls them "well I can say there here" cheap Ebay headers. Anyone that dosen't believe me just ask Hex he will tell you I ain't lieing about my setup he was the one that tuned it.
Here is the pics of my dyno sheet sorry ain't got a scanner to scan it all with.
An here is the timeslip
Sorry it took so long to post up the info
http://exoticvideo.vidiac.com/video/...b500e22a1a.htm
An actually my car only dynoed 320hp/333 tq an my spray came on at 2500 an yes that is with no convertor an 3.15 gears an as Jim "Hex" at SW Tuning calls them "well I can say there here" cheap Ebay headers. Anyone that dosen't believe me just ask Hex he will tell you I ain't lieing about my setup he was the one that tuned it.
Here is the pics of my dyno sheet sorry ain't got a scanner to scan it all with.
An here is the timeslip
Sorry it took so long to post up the info
Pro
Joined: Sep 2005
Posts: 531
Likes: 0
From: Spicewood, TX
There is quite a bit of misinformation about the Cobra in this thread.
Upper pulley and all the usual mods it can go anywhere between 11.2 and 11.8 on the average. Some goofs get in and do mid 12's, but that is not the norm.
With upper pulley only on 18" street tires I was running around 11.75 average at about 119.
With upper and lower pulley, ported blower, I was running 11.4's, still on 18" street tires anywhere from 122 to 125.
There are plenty of Eaton cars in the 10's w/o spray.
11.33 is stout. He's gonna have to have a pretty good setup to run with that.
Upper pulley and all the usual mods it can go anywhere between 11.2 and 11.8 on the average. Some goofs get in and do mid 12's, but that is not the norm.
With upper pulley only on 18" street tires I was running around 11.75 average at about 119.
With upper and lower pulley, ported blower, I was running 11.4's, still on 18" street tires anywhere from 122 to 125.
There are plenty of Eaton cars in the 10's w/o spray.
11.33 is stout. He's gonna have to have a pretty good setup to run with that.