C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

motorcraft injectors ´91

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Old Jun 7, 2007 | 11:08 AM
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Default motorcraft injectors ´91

Was about to order injectors from injectors4u, but they didn´t have those rochesters in stock (only 5 instead of 8). But they offered me motorcraft f55e-a2d or a2e instead for the same price (25$ ea.). Does anyone have experience with those?
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Old Jun 7, 2007 | 12:59 PM
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I don't remember the exact part number off hand but that sounds like the set I bought, flow matched at 22.3lbs. If these are the same and I think they are, wow what a difference when I put them in my 91. Great fast service, good communications and you would have to look long and hard to see they are re-manufactured. I would buy these again!

Good Luck
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Old Jun 7, 2007 | 04:06 PM
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Thanks bd 2626. I´m in Sweden so it´s not the easiest to get parts over here. I´m not out on the forum that much but I read about lots off stuff in the tech section. Put the radio in after repair but now it won´t shut off when I turn off the ignition and open the door, must have missed something or a switch is hanging, donno...
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Old Jun 8, 2007 | 07:21 AM
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I'm not an electrical man to ask but good luck with that. I think you will be happy with those injectors. Hope it helps!
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Old Jun 8, 2007 | 10:55 AM
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Vette079: Make sure you KNOW the flow rating of the injectors you are going to buy. Ford rates their flow at 39 PSI and GM rates their flow at 43 PSI. You need 22 lb hr injectors rated at 43 PSI for your 91 model year. What happened to your stock injectors?
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Old Jun 8, 2007 | 11:35 AM
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Originally Posted by Sam Lam
Vette079: Make sure you KNOW the flow rating of the injectors you are going to buy. Ford rates their flow at 39 PSI and GM rates their flow at 43 PSI. You need 22 lb hr injectors rated at 43 PSI for your 91 model year. What happened to your stock injectors?
Ford doesn't make injectors. Bosch rates the injectors at 43.5 psi. I would doublecheck the source. Those injectors should have both Bosch and Ford part #s on them.

Bosch starts with 0 280 ...
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Old Jun 8, 2007 | 01:37 PM
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I ordered my injectors through FiveOmotorsports and yes they carry the Bosch injectors with the Ford #'s on them. I believe I got the set for $250, very fast and friendly service. They have a lot more stuff than whats on their website, heres they're number 562-867-4999.
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Old Jun 8, 2007 | 01:49 PM
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Originally Posted by 4Ever21
I ordered my injectors through FiveOmotorsports and yes they carry the Bosch injectors with the Ford #'s on them. I believe I got the set for $250, very fast and friendly service. They have a lot more stuff than whats on their website, heres they're number 562-867-4999.
I wouldn't order anything from them. They sell used crap.
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Old Jun 9, 2007 | 08:10 AM
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I suggest you buy new ones from summit or from your choice of suppliers. You are too far away to be having any issues w/remans. You do need to make sure to get close to stock spec. on flow numbers and all FMS are manufactured from Bosch (as CC stated). (thought the pink tops" were closest) Hopefully some one will chime in for you w/tthe exact compare P.N.
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Old Jun 9, 2007 | 08:24 AM
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I agree with mseven on purchasing reliable injectors due to your location. Here is a thread you may find interesting:

http://forums.corvetteforum.com/show...post1560357682

Hope this info is helpful to you!
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Old Jun 10, 2007 | 04:04 AM
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We have had some contact before. I still had those stock multecs. You wrote about rich at cruzin´. He said something about 89 through 91 injectors were the worst injectors you can find on the planet.
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Old Jun 10, 2007 | 07:42 AM
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Originally Posted by vette079
We have had some contact before. I still had those stock multecs. You wrote about rich at cruzin´. He said something about 89 through 91 injectors were the worst injectors you can find on the planet.
Yes, the Vette years 89 thru 91 have an injector that has a high failure rate. However, I would not change out your injectors based upon this information. Instead, I would check the resistance of each injector on an annual basis. If the resisance is the same on all eight coils (16.5 +/- .3 ohms), continue to drive the car. Your injectors may not fail! The use of injector cleaner seems to accelerate the failure of insulation on the coil wires.
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Old Jun 10, 2007 | 08:00 AM
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buy a new set through summit racing if they have the "pink" tops as stated those will be an exact match (22 lb) if not but the 24 lb injectors (light blue) tops and you'll be fine. its amazing to me how much better quality fords stuff was in the mid 80's thru mid 90's.
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Old Jun 11, 2007 | 06:44 PM
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Did some checking here and they are all from 17 ohm down to !!!!3 ohm!!!! Only four of them make it in the 16.5 ohm zone. So I think it´s best to just change all of them at once.
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Old Jun 11, 2007 | 11:14 PM
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vette079: Your next problem will be what injectors to install in your car. I strongly recommend you stay with the stock flow rate of 22 lb hr. Here is a thread on a possible source of injectors:
http://forums.corvetteforum.com/show...post1560357682

Here is a procedure that makes changing out the injectors a relatively simple process:

http://webpages.charter.net/buddiel/...al)%201-04.doc

Good luck on getting her back on the road soon
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