New Injectors
Thread Starter
Senior Member
Joined: Jan 2000
Posts: 634
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From: Essex, Ontario, Canada
New Injectors
I am going to be swapping a new set of Accel 23 lb injectors soon. Can anyone give me any tips or things to be careful of before I begin?
Thanks,
Bob
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350 TPI, 700R4(rebuilt), K&N's, MSD 6AL, Headers, Flowmaster, 160* stat, airfoil, MAF screens cut out. 13.88 @ 101.18 mph
Thanks,
Bob
------------------
350 TPI, 700R4(rebuilt), K&N's, MSD 6AL, Headers, Flowmaster, 160* stat, airfoil, MAF screens cut out. 13.88 @ 101.18 mph
Senior Member
Joined: Dec 2000
Posts: 516
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From: Mission Viejo, CA
Oil the o rings so they seal properly, make sure you reuse those clips that are on the old injectors. I've heard some really bad fire stories from people that didn't have thier injectors seated properly and fuel started spaying over the ho engine. Thats all I can think of.
Thread Starter
Senior Member
Joined: Jan 2000
Posts: 634
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From: Essex, Ontario, Canada
Just out of curiosity what is the "shop time" for this job. I can usually double the time it takes a "real" mechanic to do it.
Bob
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350 TPI, 700R4(rebuilt), K&N's, MSD 6AL, Headers, Flowmaster, 160* stat, airfoil, MAF screens cut out. 13.88 @ 101.18 mph
Bob
------------------
350 TPI, 700R4(rebuilt), K&N's, MSD 6AL, Headers, Flowmaster, 160* stat, airfoil, MAF screens cut out. 13.88 @ 101.18 mph
Joined: Jul 1999
Posts: 2,926
Likes: 5
From: Tucson, Arizona USA
Car: 1987 Z28 Convertible
Engine: 305 TPI
Transmission: 5-speed
Bob,
Whenever I read about someone replacing injectors with larger units, I can't help but wonder why. At a BSFC of 0.47, a 22# injector at 50 psig can handle 401.36 horsepower. Are you running higher hp numbers that won't allow your O2 voltage to sustain 850 - 900mV at 50 psig? Just curious.
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Willie
Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
Former Paxton (6-psig) with 50-hp nitrous: 12.043 @ 112.86 mph.
ATI D1SC (10-psig): 12.056 @ 116.62 mph.
All stats are altitude corrected for 3,100 feet using NHRA's Altitude Correction Table.
http://willie.camaro-firebird.org/
1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.
Whenever I read about someone replacing injectors with larger units, I can't help but wonder why. At a BSFC of 0.47, a 22# injector at 50 psig can handle 401.36 horsepower. Are you running higher hp numbers that won't allow your O2 voltage to sustain 850 - 900mV at 50 psig? Just curious.
------------------
Willie
Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
Former Paxton (6-psig) with 50-hp nitrous: 12.043 @ 112.86 mph.
ATI D1SC (10-psig): 12.056 @ 116.62 mph.
All stats are altitude corrected for 3,100 feet using NHRA's Altitude Correction Table.
http://willie.camaro-firebird.org/
1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.
Supreme Member
Joined: Jul 1999
Posts: 5,183
Likes: 42
From: Oakdale, Ca
Car: 89 IrocZ
Engine: L98-ish
Transmission: 700R4
Willie,
Maybe I can answer for Bob...
He may have needed new injectors, best thing out there for pintle (Bosch style) injectors are Accels, only thing is Accel doesn't make a 22lb'er.
Me? I went with 21#'s and will just bump the pressure up accordingly if needed.
Maybe I can answer for Bob...
He may have needed new injectors, best thing out there for pintle (Bosch style) injectors are Accels, only thing is Accel doesn't make a 22lb'er.
Me? I went with 21#'s and will just bump the pressure up accordingly if needed.
Thread Starter
Senior Member
Joined: Jan 2000
Posts: 634
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From: Essex, Ontario, Canada
That's exactly right. I need ones and since factory 22 lber's are too much money I am going with the Accel's.
I am going with the 23 lb ones because long range has me doing a cam and head swap.
If only someone made 22 lb injectors at a reasonable price I probably would have bought them.
Bob
I am going with the 23 lb ones because long range has me doing a cam and head swap.
If only someone made 22 lb injectors at a reasonable price I probably would have bought them.
Bob
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