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I ordered a new set of lt4 injectors for my 17 l86 (fbo,cam). Haven't got the lt4 hpfp yet. How can I get the truck running on the lt4 injectors? Is it just a matter of changing and rescaling all the tables under the fuel tab to match a factory lt4 equipped vehicle but leaving anything related to the high pressure side alone?
Anyone?
I used the Linginfelter injector calibration files as a template for which LT4 injector tables to copy over.
Be aware there's a HPFP pressure difference too, which affects certain tables, unless you end up carrying that over too.
https://www.lingenfelter.com/Calibra...730126927.html
copy/paste injector profile from LT4 vehicle
Quote:
Originally Posted by pisces_0
That's what I was confused about. Logic would tell me to copy/paste everything from an lt4 tune under "injector control" including axis that don't match. But leaving everything high pressure related (fuel system/fuel pressure tab) alone since I'm sticking with the l86 hpfp for now.
Any insight?
Ended up getting an lt4 HPFP as well. Copied everything over from a ZL1 file that logically made sense. Anyone care to look over the changes I made for the injectors/hpfp?
Attachment 126991
Attachment 126992
List of changes made
Attachment 126993
Attachment 126994
which LT4 injectors did you get? there are three part numbers....flow related (low, nominal and high flow)
19420334 is the part number I ordered. I believe they're nominal flow rating.Quote:
Originally Posted by Estep40511
id be willing to paypal someone whose done LT1/L86 fuel system to LT4 a few bucks to double check my changes. Dont want anything wacky on first start up