383 LT1 Fuel Injector Selection
383 LT1 Fuel Injector Selection I’m beginning the selection process of new fuel injectors for my LT1. Hoping that some of you might be able to provide some feedback on preferred brands, impedance & sizes. Here is a quick break down of modifications we’ve done this winter:
•Professionally built, Internally balanced and blue printed 383cid stroker lower end (forged and studded).
•Comp XFI 292 Cam w/ a full roller valve train
•Rings were file fit to handle NOS. Intend on using a single stage 150 hp shot on occasion at the track
•LT1LE2 port job on the stock heads
•Match ported intake w/ a BBK 58mm throttle body
•Long tube headers, true duals w/ an X-pipe
•Full MSD ignition (billet distributor, wires, Coil pack and 6AL box)
•Single Walbro 255 fuel pump w/ an Accel adjustable regulator
Getting ready to stuff the motor back in next weekend. Looking for advice on what injector should be used. Don’t want to find out on the chassis dyno that I don’t have enough injector to feed it. Your comments and suggestions would be greatly appreciated. Thanks!!! Jason
•Professionally built, Internally balanced and blue printed 383cid stroker lower end (forged and studded).
•Comp XFI 292 Cam w/ a full roller valve train
•Rings were file fit to handle NOS. Intend on using a single stage 150 hp shot on occasion at the track
•LT1LE2 port job on the stock heads
•Match ported intake w/ a BBK 58mm throttle body
•Long tube headers, true duals w/ an X-pipe
•Full MSD ignition (billet distributor, wires, Coil pack and 6AL box)
•Single Walbro 255 fuel pump w/ an Accel adjustable regulator
Getting ready to stuff the motor back in next weekend. Looking for advice on what injector should be used. Don’t want to find out on the chassis dyno that I don’t have enough injector to feed it. Your comments and suggestions would be greatly appreciated. Thanks!!! Jason
My green top SVO 42# were fine at 460 RWHP NA in a previous LTX Stroker build. For a wet shot, injectors don't matter. You need to make sure your fuel pump and fuel system capacity keep up.
There are a lot of things to consider... fuel pressure, engine HP, NOS size, wet or dry, etc.
You may come up short on a single Walbro... Unless you will stay below 550rwhp.
If you want to give me call, I can help you work out the details of your fuel system.
You may come up short on a single Walbro... Unless you will stay below 550rwhp.
If you want to give me call, I can help you work out the details of your fuel system.
Trending Topics
A 255 pump and 42# injectors should provide what you need N/A
I got those parts from Racetronix.
But like Lonnie said, depending on how you plan to feed your N20 setup, you might run into issues.
That setup should easily make over 400rwhp so you're really pushing the limits of the pump if you add 150.
As long as you're shopping anyhow, it might not be a bad idea to call him and make use of his advice.
I got those parts from Racetronix.
But like Lonnie said, depending on how you plan to feed your N20 setup, you might run into issues.
That setup should easily make over 400rwhp so you're really pushing the limits of the pump if you add 150.
As long as you're shopping anyhow, it might not be a bad idea to call him and make use of his advice.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Thanks for the input Lonnie. I'll take you up on that. When I installed the Walbro fuel pump, I had mostly aftermarket bolt on's and an adjustable regulator to control fuel delivery. We went all out this winter on the motor build. Sounds like that will tax the pump for more than it can handle. Look foward to speaking with you.
Here's the link to the kit I've selected, the part number is 13070 which is made for the LT1 platform and year range of my vehicle.
http://www.barrygrant.com/nitrous/default.aspx?page=98
This kit has a fuel and a nitrious solenoid which control the pressure delivered in to plate.
http://www.barrygrant.com/nitrous/default.aspx?page=98
This kit has a fuel and a nitrious solenoid which control the pressure delivered in to plate.
383, 94, dirty, fuel, injector, injectors, ls1, lt1, modifications, racetronix, reccomended, size, stroke, stroker, supercharged
