Hey guys,
Wanted to know your thoughts if these fuel injectors that i bought are correct and won't require any tuning. I didn't know some were different than others until some responses i got in another post here. Let me know your thoughts please. The car is an 88 IROC with the 5.7 Motor. Any help is greatly appreciated. Link below.
ARA

https://www.ebay.com/itm/28355781785...leKlSS&vxp=mtr

Not all of the part number is provided, they look like d3 with a adapter. I’d say they would need to be tuned might want to look at Delphi’s unless you want to tune.

Get the Delphi units from Southbay, they're plug and play.

Garbage.

No data provided.

Get the Delphi's.

With injectors - you get AT MOST what you pay for. And if you aren't tuning you need EXACT replacements - which those are not. And they are useless for "tuning" as there's no characterization data provided.

#1 rule of tuning: Give the engine what it wants

#2 rule of tuning: Buy injectors with data.



GD

I’ve had eBay d3 look alike provide offsets to customers. Still won’t tune.
words to live by you do get what you pay for.

Are the new Delphis just as terrible as the original failure prone Multecs or are they an improved design?

No improved, I think the multec issue was winding coating failure.

you have that backwards, you can't give it what it wants without the data, either pay for it or the long drawn out process of discovering it for yourself through hours of messing around. Injectors aren't that expensive in the scheme of things now days. Amazes me guys don't just pony up the cash for an injector set that is of a known quality. Even if it's a stock car. Standard motor products and others make direct replacement injectors for them.