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09-07-2017
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#1 |
 
Join Date: Jan 2006
Location: SE Oklahoma
Posts: 69
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Fuel Injectors
Hi all, I'm needing a little advise about what replacement injectors others of you have used and had good experience. I'm replacing my secondary injectors and I remember seeing some posts about good experiences others have had but haven't been able to locate them. Any recommendations would be appreciated!! Thanks!
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[COLOR=black]'91 #1101 Red/Saddle, Corsa exhaust [/COLOR] [COLOR=black] :saluting: [/COLOR] |
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09-07-2017
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#2 |
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Join Date: Aug 2014
Location: Montgomery TX
Posts: 263
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Re: Fuel Injectors
Replace the fuel pumps and filter to... Man my car responded well to that!
Sent from my SM-G950U using ZR-1 Net Registry mobile app
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1991 White ZRJuan #1616 Mileage: 56K Sept-14 -- 113k May-18!!! God Damn I Love This Car! |
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09-07-2017
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#3 |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Fuel Injectors
Unless already done, replace all the injectors not just the secondaries. It will save you form going in there second time. They will go out!
I used 21lb Accels on my last car. The new car already has new ones, they appear to be Ford injectors. This article should help... H http://www.zr1specialist.com/HAT%20W...eplacement.pdf
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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09-07-2017
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#4 |
Join Date: Mar 2014
Location: Warrington PA
Posts: 1,913
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Re: Fuel Injectors
When we did the first plenum pull back in January, I replaced all of mine with FIC injectors...I am very satisfied with them.....so you now have some choices to choose from, and we all are satisfied with the ones we chose!!!
And the above advice would be good to follow, although I have not changed out my fuel pumps at this time....but might be a good PM to follow!!!
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Tom 1994 ZR-1 #009 "captured test fleet car" 1974 LS4 454 Vert 1982 L83 CFI...now a retired "dd"....Sold WAZOO Member |
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09-07-2017
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#5 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,698
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Re: Fuel Injectors
Quote:
If these are Fords, one of the params to modify is the Injector Voltage Bias if you will be retuning. You should be able to find that info from Ford.
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[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
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09-07-2017
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#6 | |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Fuel Injectors
Quote:
H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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09-08-2017
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#7 |
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Join Date: Jan 2006
Location: SE Oklahoma
Posts: 69
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Re: Fuel Injectors
Thanks guys, this helps starting me in the right direction. The problem started with a slight hesitation when I'd accelerate then the engine would recover and run great. Last Saturday I took the car out for about a 60 mile run and left it parked for a couple of hours and when I pulled back out on the road I pushed it to WOT with the power key on and I thought the engine was going to drop out of it. No power with an extremely rough output. It ran fine once I got out of WOT but put the power back into it and there it went again. In valet mode it pulled to redline in WOT just fine. I thought it might be flooding out the plugs but I pulled them and they look like they've been starved-burned white like it might be running too lean though the fuel pressure shows a little higher than it's called for. So that's where it's at right now. On with the adventure!!
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[COLOR=black]'91 #1101 Red/Saddle, Corsa exhaust [/COLOR] [COLOR=black] :saluting: [/COLOR] |
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09-08-2017
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#8 |
Join Date: Sep 2008
Location: Mullica Hill, New Jersey
Posts: 2,581
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Re: Fuel Injectors
Might want to first check that the secondary fuel pump is working up to par.
Marty |
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09-08-2017
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#9 | |
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Fuel Injectors
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Mike: Couple things to check: Dynamic fuel pressure, and measure the current draw for both pumps (covered in Dynomites "sticky" section. Pictured: Measuring actual fuel pressure while driving normally and at WOT. (FYI, fuel pressure at WOT should be ~54 or 55± a pound. Current draw should be between 8 to 10 amperes [with ignition switch OFF, and both the primary and secondary fuses installed]) .
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry Last edited by Paul Workman; 09-08-2017 at 11:05 AM. |
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09-08-2017
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#10 | |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Fuel Injectors
Quote:
H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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