View Full Version : A237 cam = Good :D
Martin0660
05-19-2007, 11:16 PM
Ran a new best at the track tonight. Car went 12.38 at 112.78 mph :D Broke out on a 12.40 dial with that 12.38 ;) I still need to work on 60's, and there is more in it, the cam is stil lstraight up, and most like this cam +4 degrees.
Video of that pass.......
http://good-times.webshots.com/video/3045491650066453426mpbmDH
Yes, thats a backfire on the 3-4 shift, but that pretty typical for mine, its not hurting anything ;)
Bob Myers
J-rod
05-19-2007, 11:18 PM
congrats on the run!! new bests always make the money and time worth while huh.
i hope to get there soon. id like a time before i slap on a big mod. :)
lib88stang
05-19-2007, 11:19 PM
Awesome runs Bob, wish I could have seen it, maybe next time.
INSANELY CRAZY
05-19-2007, 11:19 PM
cool grats bob, nice vid
Martin0660
05-19-2007, 11:32 PM
You guys are fast ;) Thanks, I'm pretty happy with it for a T3 turbo on the car. I'm real happy if this is even close.....
The Corral: Engine Dyno
Initial Readings
READING OUTPUT UNITS
WEIGHT 3200 pounds
TRAP SPEED 112.78 mph
E/T 12.383 seconds
Dyno Readings
READING OUTPUT UNITS
Total Horsepower 366 bhp
Horsepower Used 333 bhp
Best E/T 12.00 seconds
Bob Myers
lib88stang
05-19-2007, 11:37 PM
very good #'s, I hope you and Mike can tune my to somewhere in the 13's and I'd be happy.:goodidea:
Pure Stock
05-20-2007, 10:19 AM
Got the 4-banger rollin'! What was the 60' on that particular run?
Sonic03snake
05-20-2007, 10:56 AM
Lookin good Bob!!!:thmbsup:
Martin0660
05-20-2007, 11:08 AM
What was the 60' on that particular run?
Full Slip
60' - 1.728
330' - 5.066
1/8th - 7.867
1/8th - 86.32 mph
1000' 10.324
1/4 - 12.383
1/4 112.78 mph
Keep in mind with the gearing I run (3:97 1st gear, 3:73 rear, 26" tire) I am shifting 1-2 before 60', and 3-4 just before the 1/8th mile. None the less, I am looking for 1.65 ish 60' times with the shift.
Bob Myers
One Sweet Day
05-20-2007, 11:13 AM
nicely done! cool vid too!:thmbsup:
Pure Stock
05-20-2007, 11:34 AM
Full Slip
60' - 1.728
330' - 5.066
1/8th - 7.867
1/8th - 86.32 mph
1000' 10.324
1/4 - 12.383
1/4 112.78 mph
Keep in mind with the gearing I run (3:97 1st gear, 3:73 rear, 26" tire) I am shifting 1-2 before 60', and 3-4 just before the 1/8th mile. None the less, I am looking for 1.65 ish 60' times with the shift.
Bob Myers
That's one hell of a overall gear ratio in 1st! 3.97x3.73=14.80 and with a 26" tire. Pretty much dumpin' it and stabbin' it again in little over a second. Makes it fun though:)
What rpm are you yankin' it?
Martin0660
05-20-2007, 11:40 AM
Yeah, I have to shift it REAL fast :D I am dumping at 5000 rpm off the line and pulling the stick at 5800.
I went with this cam as it is a higher RPM cam and I hoped to move to 6000 - 6200 for shift points. I need a test and tune to work out the cam timing and shift points with this cam. I am also going to try a lower launch RPM to get out of the spin in the 60' (but it still dinks them into second)
Bob Myers
Pure Stock
05-20-2007, 01:37 PM
If you do not mind me asking Bob, what do you have as far as suspension mods? It's probably nice having the 4-cylinder in there when comparing engine weight with a V-8.
Martin0660
05-20-2007, 02:38 PM
Suspension is a goofy issue with this car ;) Everything is from a SVO so its 1 1/2" wider than the normal fox stuff.
The front is just normal struts, SVO springs, still has the SVO sway bar (huge & heavy), etc. I have the other half of an Eibach launch spring kit to install on the front along with a set of Koni reds with adjustable rebound (will still be a normal ratio). I need to get that stuff on there soon ;)
The rear is CHE upper and lower control arms. Their arms are poly bushings but with delrin inserts arouns the sleeves, kinda a good compronise from the full poly to full delrin. Springs are Eibach launch springs with an air bag in the right rear (still no air in it, just the bag). Stock sway bar back there too. Shocks are old Monromatics or whatever (yellow ones).
Frame is tied together with LMM full length sub frames and tourque boxes have their kits welded into them too.
Believe it or not, there isnt a weight savings with the 4 cylinder over a V8. A dressed 2.3 Turbo is within 20#'s or so of a dressed 5.0, and a set of aluminum heads would make the 5.0 lighter. Add to mine the big intercooler I run and piping and such, and i'm in 5.0 leauge with this thing up front. My car is 3200#'s as weighted on 4 corner scales with me in the seat. There are quite a few compromisses in this car as I do drive it every day, so I cant go full on drag race with it, and refuse to gut it.
My challenge right now is that I need RPM (5000 +) to get the car to launch, but I cant get enough tire on it to keep it from spinning. I'm hoping I can soften it with cam timing and drop the launch RPM to make it hook.
Bob Myers
Pure Stock
05-20-2007, 02:49 PM
Believe it or not, there isnt a weight savings with the 4 cylinder over a V8. A dressed 2.3 Turbo is within 20#'s or so of a dressed 5.0, and a set of aluminum heads would make the 5.0 lighter.
Perhaps an aluminum headed 5.0L would be the ticket then?:) With the requisite Turbo(s)
turbo83coupe
05-20-2007, 03:10 PM
sweet times, it was a great night at the track :thumbsup:
yeahloh95
05-28-2007, 04:50 PM
way to go nice run bob, i hope you get it back running this great soon .
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