Fuel injectors - ZR-1 Net Registry Forums

Bradjon · 04-11-2020

It’s time to get new injectors for my 90 which ones do you guys like the accelerator or the tic injectors and if it’s the accele what is the part. Umbers please thank you so much

Bradjon · 04-11-2020

Oops sorry new phone accells or the fic injectors

XfireZ51 · 04-11-2020

Either works fine particularly in a stock motor.

Paul Workman · 04-11-2020

The Accel injectors are the 150821s from Summit Racing.

NOTE: There is a plastic nub for connector indexing which has to be ground off of injectors to be inserted in the secondary ports. No biggie. It takes about 5 seconds with a Dremel to zip the nub off. That's it.

That said, Jerry's Gaskets can provide FIC injectors AND the proper Vinton O-ring seals - as a complete kit. Just let him know it is a 1990 to be sure you get the correct O-rings.

Swapping injectors is a DIY project. Easy Peasy! And, I'm using the Accel injectors - installed over 10 years ago now. Still running perfectly!

TX '90 ZR1 · 04-12-2020

I would recommend contacting Jerry. Just let him know what you are doing and he will know the correct parts you will need.
Jerry is a Godsend for maintaining the LT5. He supports us. We should support him.
(My 2 cents worth, but I believe worth more!)

WARP TEN · 04-12-2020

Quote:

Originally Posted by TX '90 ZR1

I would recommend contacting Jerry. Just let him know what you are doing and he will know the correct parts you will need.
Jerry is a Godsend for maintaining the LT5. He supports us. We should support him.
(My 2 cents worth, but I believe worth more!)

You're right Kenny--I think Jerry owes you a commission! But you are also very right that Jerry is the guy to go to for parts and knowledge and deserves all the recommendations he gets. --Bob

Vette Guy · 04-12-2020

As Marc recommended Accel injectors for a stock replacement, I’ve used them and have been happy. See his article regarding injectors below. My 91 runs them, and it makes somewhere around 450hp using the stock size.

http://zr1specialist.com/HAT%20Web/a...eplacement.pdf

Even better, I was able to purchase the Accels for about $500 for all 16 via Amazon. If you do not need them right away, you can monitor Amazon’s price fluctuations via the below link.

https://camelcamelcamel.com/ACCEL-15...uct/B0006HJO3G

Bradjon · 04-12-2020

Thanx so much for the amazon idea living on ssi I need to sabe every penny I can

Driller1 · 04-12-2020

just a few weeks ago bought the full set of 16 FIC injectors from Jerry
with plenum gaskets etc.
I couldn’t be happier. Unbelievable how smooth and responsive the car is.
He’s got everything in stock.
FYI buy several of the little gaskets for injector electric plugs.
You’re SOL if you drop one and don’t have any spares.
If you have not removed plenum before Marc Haibeck has a DVD he’s sells
that makes job very straightforward after watching it.

XfireZ51 · 04-12-2020

Had Accels in mine for over 10 years. Motor ran great but several of them finally failed in terms of poor spray pattern w one of them having the aerator disintegrate to the point of causing detonation in my #7 cylinder. Again, I was happy w the Accels but decided to switch to FICs because they are sold as a matched set, ie flow rated within 1% each other. I’m a bit anal about my tune, so I change tune to reflect the Injector Voltage Compensation for different imjectors.

04-11-2020	#1
Bradjon Join Date: Apr 2020 Location: Ridgecrest ca Posts: 70	Fuel injectors It’s time to get new injectors for my 90 which ones do you guys like the accelerator or the tic injectors and if it’s the accele what is the part. Umbers please thank you so much

04-11-2020	#2
Bradjon Join Date: Apr 2020 Location: Ridgecrest ca Posts: 70	Re: Fuel injectors Oops sorry new phone accells or the fic injectors

04-11-2020	#3
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,685	Re: Fuel injectors Either works fine particularly in a stock motor.

04-11-2020	#4
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: Fuel injectors The Accel injectors are the 150821s from Summit Racing. NOTE: There is a plastic nub for connector indexing which has to be ground off of injectors to be inserted in the secondary ports. No biggie. It takes about 5 seconds with a Dremel to zip the nub off. That's it. That said, Jerry's Gaskets can provide FIC injectors AND the proper Vinton O-ring seals - as a complete kit. Just let him know it is a 1990 to be sure you get the correct O-rings. Swapping injectors is a DIY project. Easy Peasy! And, I'm using the Accel injectors - installed over 10 years ago now. Still running perfectly!

04-12-2020	#5
TX '90 ZR1 Join Date: Oct 2017 Location: TX Posts: 2,057	Re: Fuel injectors I would recommend contacting Jerry. Just let him know what you are doing and he will know the correct parts you will need. Jerry is a Godsend for maintaining the LT5. He supports us. We should support him. (My 2 cents worth, but I believe worth more!) __________________ Kenny 1990 #442

04-12-2020	#7
Vette Guy Join Date: Jul 2005 Location: San Antonio, TX Posts: 658	Re: Fuel injectors As Marc recommended Accel injectors for a stock replacement, I’ve used them and have been happy. See his article regarding injectors below. My 91 runs them, and it makes somewhere around 450hp using the stock size. http://zr1specialist.com/HAT%20Web/a...eplacement.pdf Even better, I was able to purchase the Accels for about $500 for all 16 via Amazon. If you do not need them right away, you can monitor Amazon’s price fluctuations via the below link. https://camelcamelcamel.com/ACCEL-15...uct/B0006HJO3G __________________ Mark Horner President, ZR-1 Net Registry 91 ZR-1 #2016 95 ZR-1 #21 DRM-600, LPE 385

04-12-2020	#8
Bradjon Join Date: Apr 2020 Location: Ridgecrest ca Posts: 70	Re: Fuel injectors Thanx so much for the amazon idea living on ssi I need to sabe every penny I can

04-12-2020	#9
Driller1 Join Date: Mar 2020 Location: Southern NH Posts: 166	Re: Fuel injectors just a few weeks ago bought the full set of 16 FIC injectors from Jerry with plenum gaskets etc. I couldn’t be happier. Unbelievable how smooth and responsive the car is. He’s got everything in stock. FYI buy several of the little gaskets for injector electric plugs. You’re SOL if you drop one and don’t have any spares. If you have not removed plenum before Marc Haibeck has a DVD he’s sells that makes job very straightforward after watching it. __________________ 1967 Corvette 427/L36 Goodwood Green Convertible NCRS Top Flight 1969 Z/28 DZ302 Fathom Green 1971 Corvette 454/LS5 Brands Hatch Green Coupe NCRS Top Flight 1980 Z/28 Coupe 383 Stroker 450hp Black/Black 1987 Corvette Z51 4+3 Coupe Bright Blue (SOLD) 1991 Corvette ZR-1 LT5 Bright Red/Red #141 1997 Viper GTS Hennessey Venom 700hp GTS Blue 2006 Ferrari F430 Gated 6M Rosso Corsa/Nero(SOLD) 2007 Corvette Z06 Victory Red 2009 Corvette ZR1 Cyber Gray 3ZR #1037 2011 Ferrari 458 Italia Grigio Silverstone/ Nero 2015 Corvette Coupe Z06/Z07/3LZ 7speed Torch Red/Jet Black 2015 Camaro Z/28 LS7 #854 Black/Black 2019 Corvette ZR1 Sebring Orange ZR1/ZLZ/ZTK/3ZR 7 speed #289 Last edited by Driller1; 04-12-2020 at 04:15 PM.

04-12-2020	#10
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,685	Re: Fuel injectors Had Accels in mine for over 10 years. Motor ran great but several of them finally failed in terms of poor spray pattern w one of them having the aerator disintegrate to the point of causing detonation in my #7 cylinder. Again, I was happy w the Accels but decided to switch to FICs because they are sold as a matched set, ie flow rated within 1% each other. I’m a bit anal about my tune, so I change tune to reflect the Injector Voltage Compensation for different imjectors.