FUEL INJECTORS
Thread Starter
Junior Member
Joined: Jun 2009
Posts: 4
Likes: 0
From: San Diego CA.
Car: 1990 TRANS AM GTA
Engine: L-98 350
Transmission: 700R4
Axle/Gears: STOCK GM 10 BOLT
FUEL INJECTORS
I CHANGED MY STOCK FUEL INJECTORS WITH A SET OF TRICKFLOW 24LBS/HR PART #Tfs-89024 NOW IT WONT START OR WHEN I DO GET IT RUNNING I HAVE TO BE IN AND OUT OF THE THROTTLE AND RPM IS GOING UP AND DOWN, ITS A BONE STOCK 1990 TRANS AM GTA WITH THE L-98 350, OH AND NO VACUME LEAKS
Thread Starter
Junior Member
Joined: Jun 2009
Posts: 4
Likes: 0
From: San Diego CA.
Car: 1990 TRANS AM GTA
Engine: L-98 350
Transmission: 700R4
Axle/Gears: STOCK GM 10 BOLT
Re: FUEL INJECTORS
yea its at 40psi, new fuel pump and filter
Last edited by bob90gta; Jun 15, 2010 at 10:04 PM.
Senior Member
iTrader: (3)
Joined: Aug 2008
Posts: 614
Likes: 0
From: Memphis, TN
Car: 1992 z28 Purple Haze
Engine: 5.7L Tuned Port Injection
Transmission: 700R4
Axle/Gears: 3.23 both spinning
Re: FUEL INJECTORS
It could be that 24 lbs/hr is too much. I think the stock injectors flow 19 lbs/hr. If it ran fine before you changed them then that's probably it. Try putting the stock ones back in and if she runs fine with the old ones, there you go.
Supreme Member
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: FUEL INJECTORS
Bingo! Im afraid jtsk is right. Unless youve made changes to the motor to increase its fuel requirements, larger injectors are not going to work.
Thread Starter
Junior Member
Joined: Jun 2009
Posts: 4
Likes: 0
From: San Diego CA.
Car: 1990 TRANS AM GTA
Engine: L-98 350
Transmission: 700R4
Axle/Gears: STOCK GM 10 BOLT
Re: FUEL INJECTORS
yaeh and it ran like s*#@t with the stock ones not enough ohs of restance, would a dyno tune be able to adjust the ecm so it could run
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