Tuning help needed - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Ls3jaguar · 06-05-2022, 08:16 PM

Hello everyone my name is Mel I purchased 2008 Yukon Denali XL 6.2L with 6L80E transmission AWD, with misfirig problem none AFM, original engine melted one of the pistons so I had a cammed LS3 in my old jaguar with T56 transmission, I took it out and put it in the Yukon since its our family car and can't wait until the original engine gets rebuild. My LS3 has a Night Fury cam in it, Cam specs are 233/242 .629"/.629" 113+3 with PAC racing dual springs, rocker arm trunnion upgrade from comp cams, forged pushrods stock height 7.400, forged pistons with 10.1.1 compression ratio. my jaguar was already tuned and I copied over differences just to get it driving but it drives very poorly, I installed the maf sensor out of the jaguar. because I could not get it to stay running with the Yukon maf sensor. If anyone can help me tune this I will gladly pay. I don't want to drive too much like this so rings wont get damaged. Yukon still has the stock exhaust and catalytic converters on it. I will eventually get rid of them but for now it's not a priority. I live in Phoenix and every tuner I talk to they're at least 6 weeks behind. I have hptuners and can send file and also log it. Thanks in advance and if need more info I can provide.

Ls3jaguar · 06-08-2022, 10:53 PM

Current tune

06-05-2022, 08:16 PM	#1
Ls3jaguar Drives: Ls3 jaguar xjs Join Date: Feb 2014 Location: Los Angeles Posts: 9 View My Garage	Tuning help needed Hello everyone my name is Mel I purchased 2008 Yukon Denali XL 6.2L with 6L80E transmission AWD, with misfirig problem none AFM, original engine melted one of the pistons so I had a cammed LS3 in my old jaguar with T56 transmission, I took it out and put it in the Yukon since its our family car and can't wait until the original engine gets rebuild. My LS3 has a Night Fury cam in it, Cam specs are 233/242 .629"/.629" 113+3 with PAC racing dual springs, rocker arm trunnion upgrade from comp cams, forged pushrods stock height 7.400, forged pistons with 10.1.1 compression ratio. my jaguar was already tuned and I copied over differences just to get it driving but it drives very poorly, I installed the maf sensor out of the jaguar. because I could not get it to stay running with the Yukon maf sensor. If anyone can help me tune this I will gladly pay. I don't want to drive too much like this so rings wont get damaged. Yukon still has the stock exhaust and catalytic converters on it. I will eventually get rid of them but for now it's not a priority. I live in Phoenix and every tuner I talk to they're at least 6 weeks behind. I have hptuners and can send file and also log it. Thanks in advance and if need more info I can provide.