I have a 2002 Z28, with 02 LS6 cam, springs, ftra, lid, descreened maf, 2400 stall and a cut out. The car dyno'ed 335rwhp and 329rwtq this past friday in Dallas and was tuned via LS1 edit. I have a dry nitrous kit, 100 shot that did 426rwhp and 455rwtq, but was on the lean side 13.7 what can I do to richen the car up and not hurt the NA tune, I am thinking its time to invest in a better fuel pump, any help would be good, thanks guys.

 

First, welcome to the board. Hope you stop in often.

The pump might do it. With your mods and the 100 shot I believe you are at the limit. Did you happen to watch your fuel psi when you where spraying? If your low the new pump could bring it back up and put your A/F's closer to 13.0.

Also, do a seach for the couple of new post that went up about a few guys using MAF tables to see when the dry is flowing and they richen up just that part a little and pull some timing while being able to keep a good NA tune. 383LQ4SS has been giving updates and results on this.

Hope this helps a little. I'm shure others will jump in also.

 

Thanks a ton I will do some searching around, and its good to be here

 

I did not see the fuel pressure reading, nor do I have a gauge. I was wondering if something like that could be done in Edit, when the maf reads a large value ( nitrous ) the programing would tell the computer to back some timming off and add some fuel, my tunner has delt mainly with wet kits and was not sure how to change it and not effect my NA tune, thanks for the help, if I do not get any more info I will PM him for help, again thanks

 

I found it for ya in case the search didn't pop it up. https://ls1tech.com/threads/showflat...31&fpart=1

Should be able to help you out a little.

 

Thanks for posting that, I need to get in touch with him, and then go back to my local dyno.