Thanks for reading my post I recently purchased a 93 lx 5.0 with a manual trans.
It was way to slow with basic bolt ons. So I decided to order from summit the trick flow top end kit (link below)
http://store.summitracing.com/partdetail.asp?part=TFS-K514-360-350&autoview=sku
The mods the car already had when I bought it is a bbk cold air intake, 3.73 gear, short throw, bbk shorty headers, and full exhaust I think flow master.
The car ran perfect prior to the install of the top end kit along with this kit I put on a ford racing 30lb injecters, 73mm vortech mass air, with a 30lb sample tube, 70mm throttle body and egr, and a bbk 190 fuel pump/bbk fuel pressure regulator
The issues I am having
fuel pressure drops about 3 to 4 psi after car warms up with vac off or on
Checked for fuel leaks and changed pump same problem
On part throttle or crusing speeds 2500 rpm or less car feels like its missing or bucking
replaced plugs cap rotor cables still same problem
Car stalls sometimes on cold starts and on hott starts also idle with hunt every now and then.
Overall at WOT the car pulls hard and is smooth but my normal driving just doesn't feel right the bucking, surging of the idle, And stalling got me going nuts I have even paid for a dyno tuner to put in a sct chip that claimed it would fix all issues but just leaned it up and by far didn't fix the problem.
Anyone have any ideas ? This has been going on for two months. I just want to drive the car and enjoy it not throw money at it with no results. I tried alot of things to many to list but any new taughts or ideas would be a great help.
Thanks
Dyno results below 280 at the rear is before the chip 295 is after the tune pulls harder but still have problems listed above
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It was way to slow with basic bolt ons. So I decided to order from summit the trick flow top end kit (link below)
http://store.summitracing.com/partdetail.asp?part=TFS-K514-360-350&autoview=sku
The mods the car already had when I bought it is a bbk cold air intake, 3.73 gear, short throw, bbk shorty headers, and full exhaust I think flow master.
The car ran perfect prior to the install of the top end kit along with this kit I put on a ford racing 30lb injecters, 73mm vortech mass air, with a 30lb sample tube, 70mm throttle body and egr, and a bbk 190 fuel pump/bbk fuel pressure regulator
The issues I am having
fuel pressure drops about 3 to 4 psi after car warms up with vac off or on
Checked for fuel leaks and changed pump same problem
On part throttle or crusing speeds 2500 rpm or less car feels like its missing or bucking
replaced plugs cap rotor cables still same problem
Car stalls sometimes on cold starts and on hott starts also idle with hunt every now and then.
Overall at WOT the car pulls hard and is smooth but my normal driving just doesn't feel right the bucking, surging of the idle, And stalling got me going nuts I have even paid for a dyno tuner to put in a sct chip that claimed it would fix all issues but just leaned it up and by far didn't fix the problem.
Anyone have any ideas ? This has been going on for two months. I just want to drive the car and enjoy it not throw money at it with no results. I tried alot of things to many to list but any new taughts or ideas would be a great help.
Thanks
Dyno results below 280 at the rear is before the chip 295 is after the tune pulls harder but still have problems listed above