Series 1 Fuel Injector Options
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fmacnak
- SE Member
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- Year and Trim: '95 SSEi
- Location: St. Louis, MO
Series 1 Fuel Injector Options
Someone had probably asked this before but I can't find it. What options do I have for improved fuel injectors?
95 SSEI (modified-cammed, ported & portmatched, custom Positraction trans)
99 C5 (too original-can't bear to make it a project)
09 Escalade (to tow my projects around)
03 Bmw 330 Cic (the foreigner)
99 C5 (too original-can't bear to make it a project)
09 Escalade (to tow my projects around)
03 Bmw 330 Cic (the foreigner)
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J Wikoff
- Administrator
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2009 G8 GT - Location: Central Illinois
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Re: Series 1 Fuel Injector Options
Unless you've done mods to increase airflow enough that your injectors are maxed out, getting a stock set rebuilt and flow matched would be best. If you actually need more fuel, series 2 l67 injectors have a higher flow rate. I use them to balance out the 94/95's larger tb/sc I put on my 92.
WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
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fmacnak
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- Posts: 23
- Joined: Mon Jun 23, 2014 6:01 pm
- Year and Trim: '95 SSEi
- Location: St. Louis, MO
Re: Series 1 Fuel Injector Options
Ok, I'm running ported and port matched heads, polished the intake and running a Walbro fuel pump. Series 2 fuel injectors look like they are shaped differently. Do I need anything additional to add them?
95 SSEI (modified-cammed, ported & portmatched, custom Positraction trans)
99 C5 (too original-can't bear to make it a project)
09 Escalade (to tow my projects around)
03 Bmw 330 Cic (the foreigner)
99 C5 (too original-can't bear to make it a project)
09 Escalade (to tow my projects around)
03 Bmw 330 Cic (the foreigner)
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J Wikoff
- Administrator
- Posts: 17080
- Joined: Mon May 19, 2008 7:01 pm
- Year and Trim: 1992 SSE
2009 G8 GT - Location: Central Illinois
- Contact:
Re: Series 1 Fuel Injector Options
They fit with no other changes.
WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
Re: Series 1 Fuel Injector Options
You will need to tune the ECU for the correct injector sizes or it will not run properly. Most any GM injector from the same era should swap. The L67 injectors are ~36lb/hr, LQ1 (3.4L DOHC) are about 24lb/hr. If your NA with ported heads/intake then a tune will adjust the fueling with your existing injectors. Your ECU will also add fuel if it is leaning out as well. I would run the stock injectors and find a way to scan the Fuel Trims and go from there.
S
S
Shane "RedZMonte"
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
2004 Z16 Z06: Virgin
2000 SSEi: Kenwood DDX512, 3.25" MPS, ZZP DP, PLog, Puck Mount, NGK TR7's, DHP Tuned
1995 Monte Z34: T04e "60" turbo, 42.5# injectors, Borla Catback, OBDII swap, DHP Tuned, Much more...
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J Wikoff
- Administrator
- Posts: 17080
- Joined: Mon May 19, 2008 7:01 pm
- Year and Trim: 1992 SSE
2009 G8 GT - Location: Central Illinois
- Contact:
Re: Series 1 Fuel Injector Options
A scan can tell you how the stock injectors are doing.
WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
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95naSTA
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Re: Series 1 Fuel Injector Options
Your LTFTs will tell you if you're lean overall and injector duty cycle at WOT will give you an idea of you're running out of injector.
Keep in mind there were two different fuel pressure regulators for series 1 L67s. 92/93 had a 3.0 Bar and the 94/95 had a 2.7 Bar.
If you need to squeeze a little more out of your injectors you can swap to that 3.0 regulator.
Make sure when you're comparing injector flow rates, they're at the same pressure.
Keep in mind there were two different fuel pressure regulators for series 1 L67s. 92/93 had a 3.0 Bar and the 94/95 had a 2.7 Bar.
If you need to squeeze a little more out of your injectors you can swap to that 3.0 regulator.
Make sure when you're comparing injector flow rates, they're at the same pressure.
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fmacnak
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- Year and Trim: '95 SSEi
- Location: St. Louis, MO
Re: Series 1 Fuel Injector Options
Ok, we'll start with the 3.0 regulator. I have a 92 and a 95 engine in my garage right now. On a side note, thinking of running an extremely small pulley. I see I can get a 1.9" pulley. That would probably force a custom tune and larger injectors right?
BTW, engine is totally out of the car right now, so trying to "do it right" before I put it back in.
BTW, engine is totally out of the car right now, so trying to "do it right" before I put it back in.
95 SSEI (modified-cammed, ported & portmatched, custom Positraction trans)
99 C5 (too original-can't bear to make it a project)
09 Escalade (to tow my projects around)
03 Bmw 330 Cic (the foreigner)
99 C5 (too original-can't bear to make it a project)
09 Escalade (to tow my projects around)
03 Bmw 330 Cic (the foreigner)