Originally Posted by cobaltssoverbooster (Post 3175205)

correct the charge psi sensor will see 255kg when 22.5 psi is reached. the fuel tables all happen to end exactly at 225kg so by going to 23psi you have just gone into a zone where there are absolutely no values, thus the computer will disregard the psi sensors input and go into limp home mode, it must see over 225kg for 3 sec before limp home mode is activated.

the only way to get arround this i am told, is put a clamp on the signal back to the ecm for the map sensor. by lowering voltage back you can then run whatever psi you wish, ex: 26psi and you will not exceed the end of the table @ 225kg, although the downside to this "clamping" is the whole fuel table is thrown off and must be tuned appropriately. its time consuming.

by getting the stage kit not only do you get the upgraded psi sensors but by factory only you get a extended fuel table file via download and flash, and that alone is what holds us back from making the higher numbers, so yes as explained you can get around this but the gm kit will not only look better but also reduce headaches in the long run.

for more on map clamping i would suggest posting on hptuners forums. and please dont bring your attitude to the hpt forums, everyone there is very nice and most of the time willing to help with the whatever is causing you trouble.

Originally Posted by 08BlackSS/TC (Post 3175327)

finally, another intellegent person :thumb:

Originally Posted by cobaltssoverbooster (Post 3175410)

ive tuned a few lsj's
i own a lnf but when i get to tuning that i will be screwed haha
i dont know anything about tuning it specifiacally like hpt tables and that stuff
i will push to understand it though

correction to previous descriptive post, table maxes out at 255kpa

Originally Posted by 08BlackSS/TC (Post 3175416)

I think tuning a LNF is easier than a LSJ, so you shouldn't have a problem if you've tuned LSJ's before

Originally Posted by 08BlackSS/TC (Post 3175416)

I think tuning a LNF is easier than a LSJ, so you shouldn't have a problem if you've tuned LSJ's before

Originally Posted by MARIN007 (Post 3175369)

"*Warranty is void if kit is used for racing"

Guess they're referring to if you get caught racing by the police.

Originally Posted by steddy2112 (Post 3175872)

Drag racing at a track is still racing.

Originally Posted by 08BlackSS/TC (Post 3175416)

I think tuning a LNF is easier than a LSJ, so you shouldn't have a problem if you've tuned LSJ's before

Originally Posted by cobaltssoverbooster (Post 3176260)

what is the afr range for the lnf?
the lsj runs beautiful around 11.3-11.5 safe
11.5-11.7 balls on the wall

i just need to know what i have to aim for
i figured out the boost controll under the desired air load section
i need to set the afr to to good spot and then timing is easy and i will be hurting a little on cams lol dont know squat on adjusting those.

Originally Posted by cobaltssoverbooster (Post 3176260)

what is the afr range for the lnf?

Originally Posted by peachpuff (Post 3176306)

14.0 from 2000rpm that gradually dips to 12.8 at 5320 rpm.

Originally Posted by cobaltssoverbooster (Post 3176295)

that lnf or lsj i have heard ours love to pig rich like total soot cannon :lol:

Originally Posted by agent007kimball (Post 3179040)

Will launch control be changed in any way with this kit?

Originally Posted by Nuke (Post 7122089)

So I traded my G5 in for the 09 ss/tc. The dealership said it was completely stock but I noticed I was getting 20-22 psi instead of the 17ish I've researched from stock. So I then found the GM sticker under the hood with the part number. I then googled the number (#19212670), which is the LNF upgrade kit. Which is good because it's under warranty. Now lets say I want the ZZP DP, an air intake and charge pipes. Now would this ruin the warranty? Would I have to get a tune if I put those bolt ons on?

Originally Posted by tomj77 (Post 7123393)

the only thing u listed that can void ur warrenty is downpipe because ur removing cats which is part of the emissions system