Hello Everyone, what is the best fuel injectors to purchase? I gotta replace my injectors for my L98 5.7 TPI. I believe they are 19lbs stock. Will 20lbs injectors work? or should I stay with the stock 19lbs.

 

The 5.7l TPI engine used 22 #/hr injectors. See Southbay Injectors for replacements.

RBob.

 

They are 22# injectors on the L98. I got these,

http://www.southbayfuelinjectors.com...esign_lll.html

A lot of of 3rd gen 350 TPI owners here have installed these, results generally very good.

 

Wow these are not a expensive as the accels I was checking out at summit. Are people pretty happy with these?

 

Mine are working fine, and I've not seen many complaints about them posted here.
Southbay backs them up with an no questions asked warranty. I don't think you can do better at twice the price. IMO.

 

Thanks all!
Keith, we clean and flow test all of our injectors in house. They all come with a 3 year warranty. If you have any further questions you can give us a shout at the shop tomorrow.

 

Ok I will soon! Planning on changing my injectors in the winter. Thanks for the info

 

Sounds like exactly what I need. Placing an order.

Edit: Car is running fantastic with these new injectors. Idle is much smoother. Have noticed it takes more cranking to start but nothing excessive. Starting is consistent now hot or cold.

 

Is 21 pound injectors okay for the 5.7 TPI

 

21lb, 22lb basically the same thing
This is the flow rate you will need for a 5.7

 

 

whats the difference in these? could you use the Bosch injectors with the stock set up? I'd rather not pay $400+ if I don't have to.

 

Yes you can use the Bosch injectors for a stock setup. Some people were having problems with high BLM`S so we offered an alternative. The Delphi injectors are great injectors. However most people use the bosch

 

Looking to replace the injectors in my ‘88 L98. From what I’m reading, the Bosch work well for many, but others seem to prefer the Delphi, which is the direction I’m leaning toward.

I notice you offer both a 22#, and a 24# Delphi injector, both for the L98...while mine is currently completely stock, I’m intending on later moving to the Vortec heads...I already have the Scoggin-Dickey Vortec TPI manifold, but it will be necessary to run a while longer on the stock L98 heads.

Would you recommend sticking with the 22#, or would the 24# be a better bet, since I’m intending on bumping it up a bit later?

 

If you go with the 24s, you'll have to retune for the injector flow rate.

 

I need to start a serious study of that..particularly since I’ve done a manual swap on my L98, and GM never offered such a package.

I’m running the 5.7 auto MEMCAL currently, and it seems to run well enough, but I’m sure it’s probably less than ideal now...and probably will be even less so once I go with the Vortec heads.

 

unless you plan on bumping up your horsepower and burning a chip for a larger injector stick with the 22's.
If you can wait a few days we're having a black friday sale...15% off however it cannot be combined with the thirdgen promo code
I'll post it
If you have any other questions feel free to call us at the shop 516-442-4707

 

If all you're going to do is put on Vortec heads, the 22s are probably good enough.

 

I've been trying to purchase a set of 8 Delphi 22lb fuel injectors SKU# 4415 since you started the 15% off Black Friday/Cyber Monday sale using promocode SOUTHBAY but it hasn't worked for me. Returns error code (Coupon code "southbay" not valid.) I've tried the promocode as southbay and SOUTHBAY using fully updated Google Chrome and Microsoft Edge browsers.

What do I need to do to complete my purchase and get the 15% off sale price?

 

We're so very sorry for the inconvenience. We are experiencing a problem with our website. Our web developer has been working on correcting the issue
Please give us a call at the shop. We'll be more than happy to help you and of course honor the 15% discount
516-442-4707

 

Thanks for getting the website fixed. Just ordered set of 8 22lb Delphi fuel injectors for L98 TPI and adjustable fuel pressure regulator and diaphragm.

 

Thank you for your patience! Happy we finally got it working. New website being released within the next few months.