Need help still can't get this thing to run right....(long)
My car seems to be seriously down on power for the mods it has. So far my best et/MPH is 13.27@ 103.7mph with a 1.96 60foot time. This was on 225/60/15 DR's 32* of timing locked out & 60 psi of fuel pressure. Shifts were at 6000-6200rpm, launch was 3200rpm.
Mods Are:
75MM pro-m
70mm T-body
Holley Systemax II intake
Edelbrock 6037's with 2.02 valves (ped mount/O-ringed)
Crane 1.7 Ratio RR
Steeda # 19 cam -
220/226 @ .050 with .510 lift(w/1.7's) 115 LSA 110 ICL
Mac shorty headers
Off road H pipe 2.5"
Mac cat back all 2.5"
Electric Fan
3.73's
T-5Z trans
MSD Billet distributor
Compression should be pretty much stock (61CC chambers).
When driving the car it only spins at the top of first & I don't even get a chirp/bark out of second gear (265/50/15). I keep up pretty well with Cobras 03/04 & Lightnings on the street, ussually loosing a car to a car & a half to the Cobras. I realize these cars/trucks are fairly heavy so i don't know how much of an indicator that is to the performance of mine.
The power band doesn't come on till about 3000 rpm & it seems to nose over at 5500. I was looking for a cam that would pull right up to the limiter honestly but this isn't doing it. I am looking to try & get the car to run 110+ mph but it seems I'm way off track.
Here's pics of my rocker wear pattern since I was asked about valvetrain geometry previously...
(Not sure how much traffic the site will support...as fair warning)
http://www.motorhead.stangnet.com/images/dscf0005.jpg = cyl 5
http://www.motorhead.stangnet.com/images/dscf0006.jpg = cyl 6
http://www.motorhead.stangnet.com/images/dscf0007.jpg = cyl 7
http://www.motorhead.stangnet.com/images/dscf0004.jpg = cyl 8
On a recomendation of some folks on Hardcore50 I put the FP back to stock
put the timing at 15* reset the eec idle/tps & now...
Low end torque is improved. (Butt-o meter)
High RPM power is down. (Butt-o-meter)
Pop's in the exhuast on accel - pops in what sounds like the muffler looses power for a moment then picks back up.
Mid-range 2000-3500 feels like there is a stummble /miss.
Any & all ideas are welcome
Mike
My car seems to be seriously down on power for the mods it has. So far my best et/MPH is 13.27@ 103.7mph with a 1.96 60foot time. This was on 225/60/15 DR's 32* of timing locked out & 60 psi of fuel pressure. Shifts were at 6000-6200rpm, launch was 3200rpm.
Mods Are:
75MM pro-m
70mm T-body
Holley Systemax II intake
Edelbrock 6037's with 2.02 valves (ped mount/O-ringed)
Crane 1.7 Ratio RR
Steeda # 19 cam -
220/226 @ .050 with .510 lift(w/1.7's) 115 LSA 110 ICL
Mac shorty headers
Off road H pipe 2.5"
Mac cat back all 2.5"
Electric Fan
3.73's
T-5Z trans
MSD Billet distributor
Compression should be pretty much stock (61CC chambers).
When driving the car it only spins at the top of first & I don't even get a chirp/bark out of second gear (265/50/15). I keep up pretty well with Cobras 03/04 & Lightnings on the street, ussually loosing a car to a car & a half to the Cobras. I realize these cars/trucks are fairly heavy so i don't know how much of an indicator that is to the performance of mine.
The power band doesn't come on till about 3000 rpm & it seems to nose over at 5500. I was looking for a cam that would pull right up to the limiter honestly but this isn't doing it. I am looking to try & get the car to run 110+ mph but it seems I'm way off track.
Here's pics of my rocker wear pattern since I was asked about valvetrain geometry previously...
(Not sure how much traffic the site will support...as fair warning)
http://www.motorhead.stangnet.com/images/dscf0005.jpg = cyl 5
http://www.motorhead.stangnet.com/images/dscf0006.jpg = cyl 6
http://www.motorhead.stangnet.com/images/dscf0007.jpg = cyl 7
http://www.motorhead.stangnet.com/images/dscf0004.jpg = cyl 8
On a recomendation of some folks on Hardcore50 I put the FP back to stock
put the timing at 15* reset the eec idle/tps & now...
Low end torque is improved. (Butt-o meter)
High RPM power is down. (Butt-o-meter)
Pop's in the exhuast on accel - pops in what sounds like the muffler looses power for a moment then picks back up.
Mid-range 2000-3500 feels like there is a stummble /miss.
Any & all ideas are welcome
Mike