HSR setup with lt4 hotcam wont idle smooth, injectors or something in the tune?
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Joined: Dec 2009
Posts: 143
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From: california
Car: 1991 pontiac firebird formula
Engine: 5.7L HSR, 58mm tb,24lb inj.,lt4 cam
Transmission: 700r4,3000 stall,stage 2 shift
Axle/Gears: 10bolt 3.23 ratio
HSR setup with lt4 hotcam wont idle smooth, injectors or something in the tune?
for some reason when the car is cold it will idle just fine in park or in gear but when it warms up it kinda has a miss and jumps 100 to 150 rpms irraticaly, the guy who did the tune said it was probably a injector sticking so i went too the junk yard and pull an exact set with same ohms and for some reason when i switched them out the idle dropped 100rpms, smells like a rotten egg kinda and the idle is more irratic now? any oppinions would be greatly appreciated
Thread Starter
Member
Joined: Dec 2009
Posts: 143
Likes: 0
From: california
Car: 1991 pontiac firebird formula
Engine: 5.7L HSR, 58mm tb,24lb inj.,lt4 cam
Transmission: 700r4,3000 stall,stage 2 shift
Axle/Gears: 10bolt 3.23 ratio
Re: HSR setup with lt4 hotcam wont idle smooth, injectors or something in the tune?
somebody please???? im goin crazy over here about too set this thing on fire and call it a day
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Joined: May 2010
Posts: 306
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From: Elm City, NC
Car: 87 IROC Z
Engine: 5.7
Transmission: 700R4
Axle/Gears: 3.27
Re: HSR setup with lt4 hotcam wont idle smooth, injectors or something in the tune?
Well, your first mistake was getting a set of injectors from a junkyard. Take the plunge and get a new or reman set. There are a couple of vendors on this site that will set you up. Some things are fine from a junkyard. Injectors aren't one of those things.
Thread Starter
Member
Joined: Dec 2009
Posts: 143
Likes: 0
From: california
Car: 1991 pontiac firebird formula
Engine: 5.7L HSR, 58mm tb,24lb inj.,lt4 cam
Transmission: 700r4,3000 stall,stage 2 shift
Axle/Gears: 10bolt 3.23 ratio
Re: HSR setup with lt4 hotcam wont idle smooth, injectors or something in the tune?
ok ty for the info
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