Injectors Questions
Thread Starter
Supreme Member
Joined: Mar 2001
Posts: 2,173
Likes: 0
From: Ontario, Canada
Injectors Questions
Well I believe my injectors are starting to go south so I would like your opinions are what you feel are the best injectors to get.
Also, do the runners have to be removed to replace the injectors? I plan on porting my plenum over the winter and if I can remove the fuel rail to get at the injectors without having to remove the runners as well then that is a big bonus.
------------------
1987 Camaro IROC-Z
350 TPI (L98), HyperTech Airfoil, K&N Filters and modified airboxes, AC Delco RapidFires, Taylor SpiroPro 8mm wires, Energy Suspension polyurethane bushings for front and rear LCAs and sway bars, KYB struts and shocks, BFG g-Force Z-rated tires, MAC STB, MAC SFCs, JET low temp stat, CarSound Hi-flow Cat, 3" Mandrel-bent pipes, Flowmaster muffler, Corvette Servo, TransGo Shift Kit, Corvette 2000 Stall, TruCool LPD tranny cooler, T-tops.
2001 Sunfire GT
2.4L, 5-speed, K&N cone filter, interior detailing, 200W Monsoon Sound System (8 speakers), Silver Metallic exterior with grey interior.
Web: http://www.angelfire.com/on3/whitelightening
Also, do the runners have to be removed to replace the injectors? I plan on porting my plenum over the winter and if I can remove the fuel rail to get at the injectors without having to remove the runners as well then that is a big bonus.
------------------
1987 Camaro IROC-Z
350 TPI (L98), HyperTech Airfoil, K&N Filters and modified airboxes, AC Delco RapidFires, Taylor SpiroPro 8mm wires, Energy Suspension polyurethane bushings for front and rear LCAs and sway bars, KYB struts and shocks, BFG g-Force Z-rated tires, MAC STB, MAC SFCs, JET low temp stat, CarSound Hi-flow Cat, 3" Mandrel-bent pipes, Flowmaster muffler, Corvette Servo, TransGo Shift Kit, Corvette 2000 Stall, TruCool LPD tranny cooler, T-tops.
2001 Sunfire GT
2.4L, 5-speed, K&N cone filter, interior detailing, 200W Monsoon Sound System (8 speakers), Silver Metallic exterior with grey interior.
Web: http://www.angelfire.com/on3/whitelightening
Moderator
Joined: Jan 2000
Posts: 19,679
Likes: 316
Check this link:
Cruzin' Performance
For less than the price of one stock injector, you can get your entire set cleaned, flow matched better than most aftermarket "matched sets", and have new 'O' rings and screens installed. It takes about two days in their shop to do the entire job. Ship them next day both ways, and your "new" injectors can be at your door in less than a week.
I've used them and have had very good experiences each time.
------------------
Later,
Vader
------------------
If you want to beat the World, it might reach up and pull you down...
Adobe Acrobat Reader
[This message has been edited by Vader (edited October 29, 2001).]
Cruzin' Performance
For less than the price of one stock injector, you can get your entire set cleaned, flow matched better than most aftermarket "matched sets", and have new 'O' rings and screens installed. It takes about two days in their shop to do the entire job. Ship them next day both ways, and your "new" injectors can be at your door in less than a week.
I've used them and have had very good experiences each time.
------------------
Later,
Vader
------------------
If you want to beat the World, it might reach up and pull you down...
Adobe Acrobat Reader
[This message has been edited by Vader (edited October 29, 2001).]
Thread Starter
Supreme Member
Joined: Mar 2001
Posts: 2,173
Likes: 0
From: Ontario, Canada
Thanks Vader...I've been meaning to contact them. 
------------------
1987 Camaro IROC-Z
350 TPI (L98), HyperTech Airfoil, K&N Filters and modified airboxes, AC Delco RapidFires, Taylor SpiroPro 8mm wires, Energy Suspension polyurethane bushings for front and rear LCAs and sway bars, KYB struts and shocks, BFG g-Force Z-rated tires, MAC STB, MAC SFCs, JET low temp stat, CarSound Hi-flow Cat, 3" Mandrel-bent pipes, Flowmaster muffler, Corvette Servo, TransGo Shift Kit, Corvette 2000 Stall, TruCool LPD tranny cooler, T-tops.
2001 Sunfire GT
2.4L, 5-speed, K&N cone filter, interior detailing, 200W Monsoon Sound System (8 speakers), Silver Metallic exterior with grey interior.
Web: http://www.angelfire.com/on3/whitelightening
------------------
1987 Camaro IROC-Z
350 TPI (L98), HyperTech Airfoil, K&N Filters and modified airboxes, AC Delco RapidFires, Taylor SpiroPro 8mm wires, Energy Suspension polyurethane bushings for front and rear LCAs and sway bars, KYB struts and shocks, BFG g-Force Z-rated tires, MAC STB, MAC SFCs, JET low temp stat, CarSound Hi-flow Cat, 3" Mandrel-bent pipes, Flowmaster muffler, Corvette Servo, TransGo Shift Kit, Corvette 2000 Stall, TruCool LPD tranny cooler, T-tops.
2001 Sunfire GT
2.4L, 5-speed, K&N cone filter, interior detailing, 200W Monsoon Sound System (8 speakers), Silver Metallic exterior with grey interior.
Web: http://www.angelfire.com/on3/whitelightening
Banned
Joined: Jul 2001
Posts: 2,067
Likes: 0
From: Welland, ON, Canada
What if an injector has a low resistance? Will they repair it?
------------------
1988 Pontiac Trans Am GTA L98 5.7L, Black on Black with 114,000kms.
Custom 3" Stainless Exhaust Y-Pipe back (High flow Cat and Flowmaster Mufler)
<font face="Verdana, Arial" size="2">Originally posted by Vader:
Check this link:
Cruzin' Performance
For less than the price of one stock injector, you can get your entire set cleaned, flow matched better than most aftermarket "matched sets", and have new 'O' rings and screens installed. It takes about two days in their shop to do the entire job. Ship them next day both ways, and your "new" injectors can be at your door in less than a week.
I've used them and have had very good experiences each time.
</font>
Check this link:
Cruzin' Performance
For less than the price of one stock injector, you can get your entire set cleaned, flow matched better than most aftermarket "matched sets", and have new 'O' rings and screens installed. It takes about two days in their shop to do the entire job. Ship them next day both ways, and your "new" injectors can be at your door in less than a week.
I've used them and have had very good experiences each time.
</font>
------------------
1988 Pontiac Trans Am GTA L98 5.7L, Black on Black with 114,000kms.
Custom 3" Stainless Exhaust Y-Pipe back (High flow Cat and Flowmaster Mufler)
Member
Joined: Apr 2001
Posts: 138
Likes: 0
From: Fresno, Ca
<font face="Verdana, Arial" size="2">Originally posted by nblanchard:
What if an injector has a low resistance? Will they repair it?
</font>
What if an injector has a low resistance? Will they repair it?
</font>
------------------
408cid 1985 Corvette
http://www.mojosgarage.com
Joined: Aug 2001
Posts: 1,589
Likes: 2
From: British Columbia
Car: 90 IROC 5.7 hardtop
Engine: L98
Transmission: T5 swap
Axle/Gears: Yup -- they still work
Just a few words on the injector business. Cruizin Performance is a good deal as long as you don't use the 89-92 Rochester Multec style injectors (305 and 350). They won't rebuild these injectors, I know cause I just went through the drill with them.
If your resistance is reading low on your injector(s)then your injector is toast. This is why I am replacing two of mine. The Multec style injectors are known for this problem.
Regarding replacements, I just bought 8 19lb injectors off a low mileage 91 Z28 for $50 through the classified pages on this board. When they arrived I had them tested and they are all within spec -- good deal for me cause these injectors would cost about $1200 for 8 here in Canada.
RP.
------------------
'91 Formula Firebird G92,WS6,5-speed,3.42 a ton of fun to drive.
If your resistance is reading low on your injector(s)then your injector is toast. This is why I am replacing two of mine. The Multec style injectors are known for this problem.
Regarding replacements, I just bought 8 19lb injectors off a low mileage 91 Z28 for $50 through the classified pages on this board. When they arrived I had them tested and they are all within spec -- good deal for me cause these injectors would cost about $1200 for 8 here in Canada.
RP.
------------------
'91 Formula Firebird G92,WS6,5-speed,3.42 a ton of fun to drive.
Thread Starter
Supreme Member
Joined: Mar 2001
Posts: 2,173
Likes: 0
From: Ontario, Canada
Expensive YES! THe GM dealership is insane wanting as much as they do for them. That's why I want to inquire about aftermarket.
Another question: The average resistance for my injectors was about 16.7 when cold and about 17.3 when warm...Is this high or low?
------------------
1987 Camaro IROC-Z
350 TPI (L98), HyperTech Airfoil, K&N Filters and modified airboxes, AC Delco RapidFires, Taylor SpiroPro 8mm wires, Energy Suspension polyurethane bushings for front and rear LCAs and sway bars, KYB struts and shocks, BFG g-Force Z-rated tires, MAC STB, MAC SFCs, JET low temp stat, CarSound Hi-flow Cat, 3" Mandrel-bent pipes, Flowmaster muffler, Corvette Servo, TransGo Shift Kit, Corvette 2000 Stall, TruCool LPD tranny cooler, T-tops.
2001 Sunfire GT
2.4L, 5-speed, K&N cone filter, interior detailing, 200W Monsoon Sound System (8 speakers), Silver Metallic exterior with grey interior.
Web: http://www.angelfire.com/on3/whitelightening
Another question: The average resistance for my injectors was about 16.7 when cold and about 17.3 when warm...Is this high or low?
------------------
1987 Camaro IROC-Z
350 TPI (L98), HyperTech Airfoil, K&N Filters and modified airboxes, AC Delco RapidFires, Taylor SpiroPro 8mm wires, Energy Suspension polyurethane bushings for front and rear LCAs and sway bars, KYB struts and shocks, BFG g-Force Z-rated tires, MAC STB, MAC SFCs, JET low temp stat, CarSound Hi-flow Cat, 3" Mandrel-bent pipes, Flowmaster muffler, Corvette Servo, TransGo Shift Kit, Corvette 2000 Stall, TruCool LPD tranny cooler, T-tops.
2001 Sunfire GT
2.4L, 5-speed, K&N cone filter, interior detailing, 200W Monsoon Sound System (8 speakers), Silver Metallic exterior with grey interior.
Web: http://www.angelfire.com/on3/whitelightening
Trending Topics
Supreme Member
iTrader: (1)
Joined: Oct 2000
Posts: 1,062
Likes: 0
From: Pasadena, MD
Car: '87 Camaro IROC-Z
Engine: 385 HSR
Transmission: 700R4
Axle/Gears: 3.42 posi
The resistance looks to be in the right range to me. The next step would be to remove the fuel rail from the engine (with the injectors still attached to the fuel rail), prime the fuel pump (turn ignition to On, but don't start the engine), then see which ones are leaking.
------------------
Greg Westphal
'87 IROC 355TPI/A4
------------------
Greg Westphal
'87 IROC 355TPI/A4
Supreme Member
iTrader: (2)
Joined: Jul 2001
Posts: 1,823
Likes: 1
From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
how can you tell the difference between multec injectors and the regular type injectors(bosch,rochester?) the ones in my 88' look different from the one's in my 89'.
------------------
86',88',89' IROC-Z, 350 TPI, 700-R4
94' Formula, LT1, 6spd
------------------
86',88',89' IROC-Z, 350 TPI, 700-R4
94' Formula, LT1, 6spd
Member
Joined: Apr 2001
Posts: 138
Likes: 0
From: Fresno, Ca
<font face="Verdana, Arial" size="2">Originally posted by palric:
Regarding replacements, I just bought 8 19lb injectors off a low mileage 91 Z28 for $50 through the classified pages on this board. When they arrived I had them tested and they are all within spec -- good deal for me cause these injectors would cost about $1200 for 8 here in Canada.
RP.
</font>
Regarding replacements, I just bought 8 19lb injectors off a low mileage 91 Z28 for $50 through the classified pages on this board. When they arrived I had them tested and they are all within spec -- good deal for me cause these injectors would cost about $1200 for 8 here in Canada.
RP.
</font>
------------------
408cid 1985 Corvette
http://www.mojosgarage.com
Thread
Thread Starter
Forum
Replies
Last Post