Since I installed the larger Griffin intercooler, I've saw about 104% duty cycle at 4600 rpm. Last night I swapped from the 44lb multec shorties to some LS1 style 57 lb Siemens injectors. I thought the swap was pretty straight forward thanks to help from XLR8NSS. The whole job took about 4 hours with all of the soldering and heat shrinking of the new connecters from Speartech. I just took my time and everything seems tight with no leaks. The trims are still pretty positive, so I need to work the IFR constant a little more this morning.

Bottom Line: The job was not as scary as I thought it would be!

 

Glad it all worked out.

BTW, the fuel rail bolt with no washer was for the back driver side bolt hole. Since that metal peice is there no washer was really needed. Forgot to mention that before.

 

WHERE ARE THE PICS!!!!!

 

I asked Parish about this earlier today. Nice to know as I'll be doing this on a 6.0L with a big daddy turbo going into my grand-pa bu-hog.

Thanks again Parish!

 

Well, after a litte more adjusting.. my ltrims are sitting at about -2.xx. One thing I noticed with these injectors is that they are less sensitive to small changes in the ifr table.

 

Ok, got some miles on the truck and everything seems fine. No drivability issues at all. Smooth idle and no surges or anything. Just need some dry roads now for tuning

 

It snowed here today.