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

Yet another injector thread for 1991's...

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Old Jun 29, 2008 | 08:28 PM
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Default Yet another injector thread for 1991's...

I've been searching about replacing the injectors on my 91 and the responses I have seen are all over the board. Everything from buying rebuilt ones off ebay to ordering ones made for other cars through different vendors.

Why is this such a complex issue?

What is the general consensus for going with new injectors? I don't want to have to change any settings, wires, or mess around with the ecu, I just want to go to my mechanic, hand him a bag of injectors and tell him to pull out the old ones and stick in the replacements.

Who has the best deal on reliable used ones or new ones that fit the bill?
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Old Jun 29, 2008 | 08:33 PM
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Your looking for Jon at www.fuelinjectorconnection.com.

He is a forum vendor and has helped many people out around here.

I just ordered a new flowmatched set of 30lb injectors from him, only cost $300 to my door!
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Old Jun 29, 2008 | 08:34 PM
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Jon is great to deal with great injectors great service
Here check out the viedo
http://forums.corvetteforum.com/show....php?t=2055067

Last edited by floridamale; Jun 29, 2008 at 09:11 PM.
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Old Jun 29, 2008 | 08:36 PM
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Call Jon

Fuel Injector Connection, LLC
4966 Wade Valley Way
Cumming, GA 30040

Tel: 770-888-1662

Great customer service, fast shipping
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Old Jun 29, 2008 | 08:50 PM
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I just installed a new set of Trick Flow 24 lb. injectors from Summit Racing. They were $299.95 for a set and work great.

http://store.summitracing.com/partde...5&autoview=sku

I don't like rebuilts. Rebuilts are taken out of a used car and cleaned and serviced. There is no accurate way of knowing how many miles are on them or how long they will last.

I have been buying stuff from Summit Racing for decades and never had a problem.

Last edited by Kool88vette; Jun 29, 2008 at 09:00 PM.
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Old Jun 29, 2008 | 09:44 PM
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Originally Posted by Kool88vette
I just installed a new set of Trick Flow 24 lb. injectors from Summit Racing. They were $299.95 for a set and work great.

http://store.summitracing.com/partde...5&autoview=sku

I don't like rebuilts. Rebuilts are taken out of a used car and cleaned and serviced. There is no accurate way of knowing how many miles are on them or how long they will last.

I have been buying stuff from Summit Racing for decades and never had a problem.
Kool!!! Not again with the injectors!!! How many times have you changed yours???
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Old Jun 29, 2008 | 10:08 PM
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Originally Posted by jackdk
Kool!!! Not again with the injectors!!! How many times have you changed yours???
What's wrong, I just don't like rebuilts? I once bought a rebuilt starter for my pick up from NAPA. It lasted about 6 months. I figured no problem, it has a lifetime warranty. I put another one in. That one lasted about 6 months. I got tired of changing starters so I bought a new one. It's been fine for about 5 years. The new starter cost about $25.00 more than the rebuilt.

I made a mistake and installed the yellow Accels. I Didn't know much about them. About a year later, I pulled them out and replaced them with Trick Flows. So I have changed my injectors twice. The Trick Flows are new. My Vette starts up within a second. It idles smoothly at about 700 RPMs. I'm glad I bought the Trick Flows.

I have had problems with an injector rebuilder before. That was not Jon at FIC. Jon will stand behind his injectors. His customer service is excellent. But I still prefer new over used.

You can buy rebuilt injectors if you want, that's your business. I am entitled to post my opinion. The poster wants to hear from all sources so he can make an informed decision. Read his post. He asks for information about used and new injectors.

Last edited by Kool88vette; Jun 29, 2008 at 11:20 PM.
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Old Jun 29, 2008 | 10:18 PM
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FYI: FIC also sells new injectors!!
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Old Jun 30, 2008 | 12:50 AM
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Originally Posted by Kool88vette
What's wrong, I just don't like rebuilts? I once bought a rebuilt starter for my pick up from NAPA. It lasted about 6 months. I figured no problem, it has a lifetime warranty. I put another one in. That one lasted about 6 months. I got tired of changing starters so I bought a new one. It's been fine for about 5 years. The new starter cost about $25.00 more than the rebuilt.

I made a mistake and installed the yellow Accels. I Didn't know much about them. About a year later, I pulled them out and replaced them with Trick Flows. So I have changed my injectors twice. The Trick Flows are new. My Vette starts up within a second. It idles smoothly at about 700 RPMs. I'm glad I bought the Trick Flows.

I have had problems with an injector rebuilder before. That was not Jon at FIC. Jon will stand behind his injectors. His customer service is excellent. But I still prefer new over used.

You can buy rebuilt injectors if you want, that's your business. I am entitled to post my opinion. The poster wants to hear from all sources so he can make an informed decision. Read his post. He asks for information about used and new injectors.
uhm... iirc Accel and Trickflow are identical lucas disk injectors in different boxes.

And seriously man, how many people on here are using Jon's injectors? If there were issues, SOMEONE would have had some by now.

Hell I'm running prototypes in mine, that work AMAZING!

There is a big difference between a NAPA core rebuilt in china somewhere, and what Jon is doing.
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Old Jun 30, 2008 | 01:04 AM
  #10  
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Have you priced an injector at your local NAPA?
A rebuilt is $104
A new one is $129
Personally, I'm not spending over $800 for a set of injectors.
Folks are looking for something reasonable.
After 20 years the multech's are going south so something has to be done.
Me, for now I'm lucky my old 87 doesn't have them.

JS
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Old Jun 30, 2008 | 08:45 AM
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Originally Posted by Mekanic
uhm... iirc Accel and Trickflow are identical lucas disk injectors in different boxes.

And seriously man, how many people on here are using Jon's injectors? If there were issues, SOMEONE would have had some by now.

Hell I'm running prototypes in mine, that work AMAZING!

There is a big difference between a NAPA core rebuilt in china somewhere, and what Jon is doing.
A prototype is an experimental original type, serving as a basis or standard for later stages. Are you designing a new injector?

The yellow Accels and the new Trick Flows are not identical.

You are missing my point entirely.

Last edited by Kool88vette; Jun 30, 2008 at 08:49 AM.
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Old Jun 30, 2008 | 08:48 AM
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Originally Posted by jsinga
Have you priced an injector at your local NAPA?
A rebuilt is $104
A new one is $129
Personally, I'm not spending over $800 for a set of injectors.
Folks are looking for something reasonable.
After 20 years the multech's are going south so something has to be done.
Me, for now I'm lucky my old 87 doesn't have them.

JS
I guess that NAPA is not a good place to buy injectors. $104 for a rebuilt is crazy.
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Old Jun 30, 2008 | 11:47 AM
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Originally Posted by Kool88vette
A prototype is an experimental original type, serving as a basis or standard for later stages. Are you designing a new injector?

The yellow Accels and the new Trick Flows are not identical.

You are missing my point entirely.
Yes. A prototype. The first Bosch Design III custom made to flow the 26.4lb that the LT4 needs.

And Jon got it perfect on the first try.

And internally, the Accels and the Trick Flows, as well as the racetronix. afi. standard, summit, and msd

Are all the same.
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Old Jun 30, 2008 | 11:58 AM
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If thats the case, alot of other people should be having injector problems in the near future. My accel 30s failed in just over 2 years.
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Old Jun 30, 2008 | 01:11 PM
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Originally Posted by Mekanic
Yes. A prototype. The first Bosch Design III custom made to flow the 26.4lb that the LT4 needs.

And Jon got it perfect on the first try.

And internally, the Accels and the Trick Flows, as well as the racetronix. afi. standard, summit, and msd

Are all the same.
Maybe you should get your prototype injectors blueprinted. The yellow Accels were completely different than the Trick Flows, everybody knows that. That's enough for this topic. See Ya and good luck with the injectors. I hope they work well for years to come.

Last edited by Kool88vette; Jun 30, 2008 at 01:23 PM.
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Old Jun 30, 2008 | 05:38 PM
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Originally Posted by Kool88vette
Maybe you should get your prototype injectors blueprinted. The yellow Accels were completely different than the Trick Flows, everybody knows that. That's enough for this topic. See Ya and good luck with the injectors. I hope they work well for years to come.
He's probably quoting that Jon (@ FIC) says ACCEL and TF are both made my Standard Ignition. (I don't know myself.)

And, I wonder if your ACCELs were the earlier 1-nozzle design? Or can you confirm different manufacturers?

BTW: I also try to buy new -- unless savings on rebuilt is significant and replacement is a relatively easy procedure. TPI's are a pain. LTx's are not.
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Old Jun 30, 2008 | 06:24 PM
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Originally Posted by GREGGPENN
He's probably quoting that Jon (@ FIC) says ACCEL and TF are both made my Standard Ignition. (I don't know myself.)

And, I wonder if your ACCELs were the earlier 1-nozzle design? Or can you confirm different manufacturers?

BTW: I also try to buy new -- unless savings on rebuilt is significant and replacement is a relatively easy procedure. TPI's are a pain. LTx's are not.
The early yellow Accels pencil flow were crap. I guess the new ones are a lot better. I have a hard time believing that Accels, Racetronix Standard Motor, Lucas, Trick Flow and a few others are all identical. They may look identical and have the same stainless steel body but I think they have different internals.

An Accel sells for about $23.00 each. A Lucas is over $100.00. How can they be identical?

Jon is a really nice guy and his customers service is excellent. His rebuilts are priced right. I'm not sure what's going on with this prototype. I'm not concerned about it. I just can't see how you change the flow rate on a Bosch injector. Maybe Jon will let us know about it.

I just think it's better to buy new when it comes to injectors. Sometimes rebuilding is the only way, I just rebuilt my differential.
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To Yet another injector thread for 1991's...

Old Jun 30, 2008 | 06:52 PM
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Originally Posted by Kool88vette
The early yellow Accels pencil flow were crap. I guess the new ones are a lot better. I have a hard time believing that Accels, Racetronix Standard Motor, Lucas, Trick Flow and a few others are all identical. They may look identical and have the same stainless steel body but I think they have different internals.

An Accel sells for about $23.00 each. A Lucas is over $100.00. How can they be identical?

Jon is a really nice guy and his customers service is excellent. His rebuilts are priced right. I'm not sure what's going on with this prototype. I'm not concerned about it. I just can't see how you change the flow rate on a Bosch injector. Maybe Jon will let us know about it.

I just think it's better to buy new when it comes to injectors. Sometimes rebuilding is the only way, I just rebuilt my differential.
since you asked Fred.. I think alot outside the box.. I think I was the first guy to take a flathead v8 ford and put a stealth EFI in the engine utilizing the carb as a throttle body and installing 12lb injectors under the manifold. It was a simple speed density system and I did it in 1980. I also have made EFI out of mechanical corvette units from the 60's . Guys in the business have been modifiying injectors for years. Certain types such as the Bosch can be made to flow bigger. You just have to know how. Thats why this is my business. Ask Jonny Evans from evans race cars a forum member. Ask Pat Musi, ask Sonny Leonard or better yet ask Russ Collins from Rc Engineering. We all have been doing this since the late 80's. I spent countless hours perfecting this, As did other professionals in the business. You see back in the day there was no such thing as a 75Lb injector. So we had to make them. Today we have accurate ways to modify these. But, it sounds pretty stupid to say it can't be done. I can make a set of injectors to flow exactly what I want them to at any specified pressure upto the mechanical limitation of the orfice.
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Old Jun 30, 2008 | 07:25 PM
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Just wanted to add that I am another satisfied customer of Jon's. Had a few questions initially and he (as others have said) is great with customer service. Very pleased with my design II's for my '86.
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Old Jun 30, 2008 | 07:39 PM
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i got Jon's Bosch III design for my 87
How come every customer on this same board are installing Jon's injectors and are experiencing an amazing change !
They are all on the right spot ,there are some drastic changes
from the Multec's to Bosch IIIs ...just do a search and read
All real testimonials of Jon's excellent products and services...

New ones are OK,Rebuilt ones,are OK
but Jon give us an almost personal service
his injectors are not a mass production injector maker machine
he dedicates a lot of his time on each set and he also
worries about each customer on everystep and he even calls
their customers back to make sure his injectors are working properly
that's what i call good service!
I dont think a guy from Summit racing will call me to know how my installation its going,they care mostly about sales...they do not care about your satisfaction ...Jon cares about you,your satisfaction,your car and its performance.-
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