Can't get my new engine running correctly

shurb125 · January 21st, 2008, 07:23 PM

My cay just won't run correctly, the idle surges, throttle response is terrible, then it wouldn't start and I pulled plugs and they were wet with gas and bought new ones and it cranked again. With all the new and modified parts and peices do you think I need to get a chip burned for the mean time untill I can get a piggy back system? I built a 306 with the following parts: I have TFS trackheat upper and lower intake, BBK 70mm throttle body and egr spacer, 24# injectors, stock fuel rail, Accufab AFPR, 80mm MAF calibrated for 24's, TFS heads 58cc ported and polished, 1.6 TFS roller rockers and pushrods, TFS roller lifters, Anderson HiRev valve springs, TFS stage 2 cam, TFS double roller timing set, DSS Pro pistons -13cc, stock rods and crank, BBK L/T headers with BBK O/R H pipe and BBK underdrive pullies. I have removed the A/C and the charcoal canister. I have also moved the P/S to A/C location. Any help or suggestions are welcome!

e3sean · January 21st, 2008, 08:31 PM

maybe vaccume??

shurb125 · January 21st, 2008, 10:04 PM

Originally Posted by e3sean

maybe vaccume??

Checked all vaccum lines all is good, I just beleive that there is more to it than that, it seems no matter what you try it still dosen't run right.

dr.gonzo · January 21st, 2008, 10:05 PM

what year is the engine? do you have speed density or maf?

SALIV8 · January 21st, 2008, 10:38 PM

try clocking your maf

dr.gonzo · January 21st, 2008, 10:47 PM

now I see maf lol. there still could be a vaccume leak in the gaskets on your intake.

shurb125 · January 21st, 2008, 11:17 PM

Originally Posted by SALIV8

try clocking your maf

what exactly do you mean by clocking the maf? rotating it say 90*?

SALIV8 · January 22nd, 2008, 12:10 AM

shurb- thats correct, 90* more or less, see if that helps.

flamestang · March 1st, 2008, 10:07 AM

sounds like timming way out.

e3sean · March 1st, 2008, 10:56 AM

did u get it figured out? u can check and see if u have a leak spray some carb cleaner around the intake gaskets if the motor reacts in any way u have a leak..

ujslost · March 1st, 2008, 11:06 AM

Sounds like timing is way out or some plug wires are crossed.
I just ran into this same problem on my carbed engine. fucker would crank and pop thru the exhaust and the carb. It turned out my #3 and #7 wires were crossed. Found out after replacing dist, plugs, wires, intake gaskets. Always go back and check what you did, and double check the basic things like firing order. PPL get so comfortable with these areas they easily overlook the little things like I did.

shurb125 · March 1st, 2008, 01:52 PM

Come to find out I had the wrong MAF on the car, I bought one off ebay for 87-93 and it turned out to be one for a 94-95. Changed it to a C&L and problem solved

teal89 · March 2nd, 2008, 02:47 AM

Now sue the hell out of those Ebay guys who tried to pull a fast one on ya. Or go to them and do a burnout all the way around there shop

96GTRagTop · March 2nd, 2008, 03:04 AM

Originally Posted by teal89

Now sue the hell out of those Ebay guys who tried to pull a fast one on ya. Or go to them and do a burnout all the way around there shop

yea, sue the hell at of them for the 100 bux that part is worth......

or just ask for a refund

teal89 · March 2nd, 2008, 03:55 AM

... Ask for a refund LOL Better yet... DEMAND A REFUND! Yeah. Or you could be nice. I don't like it when people try to fuck people over. Wish they would do it right and be done.

January 21st, 2008, 07:23 PM	#1
shurb125 Regular 1993 Mustang LX Vert Join Date: Nov 2006 Location: South Carolina Posts: 434	Can't get my new engine running correctly My cay just won't run correctly, the idle surges, throttle response is terrible, then it wouldn't start and I pulled plugs and they were wet with gas and bought new ones and it cranked again. With all the new and modified parts and peices do you think I need to get a chip burned for the mean time untill I can get a piggy back system? I built a 306 with the following parts: I have TFS trackheat upper and lower intake, BBK 70mm throttle body and egr spacer, 24# injectors, stock fuel rail, Accufab AFPR, 80mm MAF calibrated for 24's, TFS heads 58cc ported and polished, 1.6 TFS roller rockers and pushrods, TFS roller lifters, Anderson HiRev valve springs, TFS stage 2 cam, TFS double roller timing set, DSS Pro pistons -13cc, stock rods and crank, BBK L/T headers with BBK O/R H pipe and BBK underdrive pullies. I have removed the A/C and the charcoal canister. I have also moved the P/S to A/C location. Any help or suggestions are welcome!

January 21st, 2008, 08:31 PM	#2
e3sean MM Fanatic 1988 lx 5.7 11.6@109 Join Date: Nov 2007 Location: arizona Posts: 3,577	maybe vaccume?? __________________ the only thing u will be burning by going with a 347 insted of a 331 is the guy driving the 331 MILITARY CREW USAF LUKE AFB AZ, E-5 SELECT 7995 AMMO I.Y.A.A.Y.A.S

January 21st, 2008, 10:05 PM	#4
dr.gonzo Enthusiast Join Date: Oct 2006 Location: kc mo Posts: 842	what year is the engine? do you have speed density or maf? __________________ FREE LUNCH, FINAL WISDOM, TOTAL COVERAGE... WHY NOT?

January 21st, 2008, 10:47 PM	#6
dr.gonzo Enthusiast Join Date: Oct 2006 Location: kc mo Posts: 842	now I see maf lol. there still could be a vaccume leak in the gaskets on your intake. __________________ FREE LUNCH, FINAL WISDOM, TOTAL COVERAGE... WHY NOT? Last edited by dr.gonzo : January 21st, 2008 at 11:00 PM.

March 1st, 2008, 10:07 AM	#9
flamestang Regular 1992 mustang gt Join Date: Apr 2007 Posts: 120	sounds like timming way out. __________________ 1992 GT/347 Paxton 2k 478hp 501tq http://www.youtube.com/watch?v=Xu2qlDRWqHA http://www.youtube.com/watch?v=Vn5VKjEh6LQ

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January 21st, 2008, 10:38 PM	#5
SALIV8 Enthusiast Join Date: Dec 2006 Location: Lookin' at you in my rearview Posts: 519	try clocking your maf

January 22nd, 2008, 12:10 AM	#8
SALIV8 Enthusiast Join Date: Dec 2006 Location: Lookin' at you in my rearview Posts: 519	shurb- thats correct, 90* more or less, see if that helps.

March 1st, 2008, 10:56 AM	#10
e3sean MM Fanatic 1988 lx 5.7 11.6@109 Join Date: Nov 2007 Location: arizona Posts: 3,577	did u get it figured out? u can check and see if u have a leak spray some carb cleaner around the intake gaskets if the motor reacts in any way u have a leak.. __________________ the only thing u will be burning by going with a 347 insted of a 331 is the guy driving the 331 MILITARY CREW USAF LUKE AFB AZ, E-5 SELECT 7995 AMMO I.Y.A.A.Y.A.S

March 1st, 2008, 11:06 AM	#11
ujslost MM Fanatic Join Date: Mar 2007 Location: Albertville, AL Posts: 3,861	Sounds like timing is way out or some plug wires are crossed. I just ran into this same problem on my carbed engine. fucker would crank and pop thru the exhaust and the carb. It turned out my #3 and #7 wires were crossed. Found out after replacing dist, plugs, wires, intake gaskets. Always go back and check what you did, and double check the basic things like firing order. PPL get so comfortable with these areas they easily overlook the little things like I did.

March 1st, 2008, 01:52 PM	#12
shurb125 Regular 1993 Mustang LX Vert Join Date: Nov 2006 Location: South Carolina Posts: 434	Come to find out I had the wrong MAF on the car, I bought one off ebay for 87-93 and it turned out to be one for a 94-95. Changed it to a C&L and problem solved __________________ 306 TFS heads stage 3 port & polished, TFS stage 2 cam, TFS Track heat intake, DSS pistons, 24# injectors, 76mm MAF, 70mm BBK/Edelbrock TB and spacer

March 2nd, 2008, 02:47 AM	#13
teal89 Enthusiast 89 Mustang Lx Join Date: Feb 2008 Location: Rockwall, Texas Posts: 516	Now sue the hell out of those Ebay guys who tried to pull a fast one on ya. Or go to them and do a burnout all the way around there shop __________________ 351w .40 over, K.B. Forged Pistons, Hardened I Rods and Pushrods, 60cc D0OE Heads with 600" valve springs, Comp 565" Cam, Barry Grant D.P. Carb, BBK Long Tubes, FRPP 9mm Plugs, E3 Spark Plugs(THE SHIT!)

March 2nd, 2008, 03:55 AM	#15
teal89 Enthusiast 89 Mustang Lx Join Date: Feb 2008 Location: Rockwall, Texas Posts: 516	... Ask for a refund LOL Better yet... DEMAND A REFUND! Yeah. Or you could be nice. I don't like it when people try to fuck people over. Wish they would do it right and be done. __________________ 351w .40 over, K.B. Forged Pistons, Hardened I Rods and Pushrods, 60cc D0OE Heads with 600" valve springs, Comp 565" Cam, Barry Grant D.P. Carb, BBK Long Tubes, FRPP 9mm Plugs, E3 Spark Plugs(THE SHIT!)

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