problems with new combo.. minor but still

03-22-2001, 11:22 PM

ok heres the deal i have the 306 with edelbroks and GT40 intake.. well the car just doesnt seem to impress me much it doesnt quite have that seat of the pants pull to it i was hoping for. the car is 5speed with 4.10's it wont even spin off a roll in second?. wtf I think something is holding it back.. now i know i have a bad connection (dirty connection) on my mass air meter and something is throwing a check engine light in but the motor is PERFECT so its gotta be in the EFI.. help me fix this thing cause EFI is the ONLY WAY TO GO in my book..

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SOLD THE 87GT, .. GT40, 70mmTB, 75mmBullet, 24lbinjectors, cold air induction, Edelbrok 6025 Rpm's, Inch phonolic spacer, tall FMSvalve covers, an SFI balancer, Canton 7quart, the shortblock... Lunati 51025 (224/232 .535/. 544 @112 deg) Ross lightweight pistons (10:1) Eagle H-Beams, Total Seal plasma Moly Rings, Clevite bearings, ARP throughout, FMS main Girdle&Studs, Forged Crank, of course HV-OilPump and hardened FMS shaft, Dual Friction centerforce, T5, and 4.10's Longtubes and 2.25 tail pi

03-22-2001, 11:24 PM

timing is at like 18 degrees and fuel is at 46psi. near that anyways... could that be the problem. it doesnt spark knock or anything it does pop sometimes help me out guys. thanx

------------------
SOLD THE 87GT, .. GT40, 70mmTB, 75mmBullet, 24lbinjectors, cold air induction, Edelbrok 6025 Rpm's, Inch phonolic spacer, tall FMSvalve covers, an SFI balancer, Canton 7quart, the shortblock... Lunati 51025 (224/232 .535/. 544 @112 deg) Ross lightweight pistons (10:1) Eagle H-Beams, Total Seal plasma Moly Rings, Clevite bearings, ARP throughout, FMS main Girdle&Studs, Forged Crank, of course HV-OilPump and hardened FMS shaft, Dual Friction centerforce, T5, and 4.10's Longtubes and 2.25 tail pi

gray87GT · 03-22-2001, 11:29 PM

Hell, my 87 broke them loose rolling inm second with pullies and H-pipe with 2.73's. Your engine sounds killer. If it were mine, and I had all that money invested in it, I would take it to a dyno and have them do there thing.

------------------
87 GT, BBK shorty's, offroad H-pipe, ASP pullies, 70mm T.B., Cobra intake, no smog pump, Windsor Jr irons, Comp cams 1.6 rollers, F303 cam, H.D. export W.P., Tri-Ax, FMS subframes, Battle boxes, SSM liftbars, FMS King Cobra clutch, mass-air conversion, 73mm C&L, 24lb injectors, BBK fuel pressure regulator, 3/8" no EGR spacer, and other piddly sh*t.

juiceman · 03-23-2001, 10:26 PM

the first thing i would do is run a code scan on it to see why the light is on. that might help. but if the only thing that seems to be a prob is lack of low end power then perhaps you should see if it pulls harder at 6000. you may have built a motor with a power peak in the high rpm range. which can be a good thing since you wount have a traction prob.

Five0 · 03-23-2001, 10:42 PM

I used to have a big problem with traction with almost a stock motor and drag suspension but after all the mod’s that I now have I still have a little problem hooking up but not near as much as I did before. I pulls real hard up higher in the rpm's and not so hard down low, But that is good on the street because I hook up a lot better and win races instead of just sit and spin.

------------------
James Cox
nochevy@hotmail.com
1991 Mustang LX
12.565 @109.38mph 1.764 60ft

82 GT · 03-23-2001, 11:50 PM

Were the 4:10 gears installed by a good shop because gears with too much gear mesh can bind up the drive train. Do they whine at all because that would be a definite indication of improperly installed gears.
Even with a cam with a higher power band you should be able to get rubber in second with 4:10's for christ sake.

------------------
'82 GT 351W,BBK shorties,
Comp Cam,edelbrock intake
625 cfm carter carb. c-4 tranny w/ pro stick shifter. 4 core radiator
Mallory distributor. 3:27
.........................

03-22-2001, 11:22 PM	#1
87GTman Guest Posts: n/a	problems with new combo.. minor but still ok heres the deal i have the 306 with edelbroks and GT40 intake.. well the car just doesnt seem to impress me much it doesnt quite have that seat of the pants pull to it i was hoping for. the car is 5speed with 4.10's it wont even spin off a roll in second?. wtf I think something is holding it back.. now i know i have a bad connection (dirty connection) on my mass air meter and something is throwing a check engine light in but the motor is PERFECT so its gotta be in the EFI.. help me fix this thing cause EFI is the ONLY WAY TO GO in my book.. ------------------ SOLD THE 87GT, .. GT40, 70mmTB, 75mmBullet, 24lbinjectors, cold air induction, Edelbrok 6025 Rpm's, Inch phonolic spacer, tall FMSvalve covers, an SFI balancer, Canton 7quart, the shortblock... Lunati 51025 (224/232 .535/. 544 @112 deg) Ross lightweight pistons (10:1) Eagle H-Beams, Total Seal plasma Moly Rings, Clevite bearings, ARP throughout, FMS main Girdle&Studs, Forged Crank, of course HV-OilPump and hardened FMS shaft, Dual Friction centerforce, T5, and 4.10's Longtubes and 2.25 tail pi

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03-22-2001, 11:24 PM	#2
87GTman Guest Posts: n/a	timing is at like 18 degrees and fuel is at 46psi. near that anyways... could that be the problem. it doesnt spark knock or anything it does pop sometimes help me out guys. thanx ------------------ SOLD THE 87GT, .. GT40, 70mmTB, 75mmBullet, 24lbinjectors, cold air induction, Edelbrok 6025 Rpm's, Inch phonolic spacer, tall FMSvalve covers, an SFI balancer, Canton 7quart, the shortblock... Lunati 51025 (224/232 .535/. 544 @112 deg) Ross lightweight pistons (10:1) Eagle H-Beams, Total Seal plasma Moly Rings, Clevite bearings, ARP throughout, FMS main Girdle&Studs, Forged Crank, of course HV-OilPump and hardened FMS shaft, Dual Friction centerforce, T5, and 4.10's Longtubes and 2.25 tail pi

03-22-2001, 11:29 PM	#3
gray87GT Registered Member Join Date: Jan 2001 Location: Minnesota Posts: 177	Hell, my 87 broke them loose rolling inm second with pullies and H-pipe with 2.73's. Your engine sounds killer. If it were mine, and I had all that money invested in it, I would take it to a dyno and have them do there thing. ------------------ 87 GT, BBK shorty's, offroad H-pipe, ASP pullies, 70mm T.B., Cobra intake, no smog pump, Windsor Jr irons, Comp cams 1.6 rollers, F303 cam, H.D. export W.P., Tri-Ax, FMS subframes, Battle boxes, SSM liftbars, FMS King Cobra clutch, mass-air conversion, 73mm C&L, 24lb injectors, BBK fuel pressure regulator, 3/8" no EGR spacer, and other piddly sh*t.

03-23-2001, 10:26 PM	#4
juiceman Registered Member Join Date: Jan 2001 Location: ny Posts: 197	the first thing i would do is run a code scan on it to see why the light is on. that might help. but if the only thing that seems to be a prob is lack of low end power then perhaps you should see if it pulls harder at 6000. you may have built a motor with a power peak in the high rpm range. which can be a good thing since you wount have a traction prob.

03-23-2001, 10:42 PM	#5
Five0 Registered Member Join Date: Apr 2000 Location: middleburg, fl, usa Posts: 1,134	I used to have a big problem with traction with almost a stock motor and drag suspension but after all the mod’s that I now have I still have a little problem hooking up but not near as much as I did before. I pulls real hard up higher in the rpm's and not so hard down low, But that is good on the street because I hook up a lot better and win races instead of just sit and spin. ------------------ James Cox nochevy@hotmail.com 1991 Mustang LX 12.565 @109.38mph 1.764 60ft

03-23-2001, 11:50 PM	#6
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	Were the 4:10 gears installed by a good shop because gears with too much gear mesh can bind up the drive train. Do they whine at all because that would be a definite indication of improperly installed gears. Even with a cam with a higher power band you should be able to get rubber in second with 4:10's for christ sake. ------------------ '82 GT 351W,BBK shorties, Comp Cam,edelbrock intake 625 cfm carter carb. c-4 tranny w/ pro stick shifter. 4 core radiator Mallory distributor. 3:27 .........................