I need some help.
My 2003 truck has a 2006 LBZ transplanted in July of 2013. The motor now has 235,000 miles and the stock turbo was showing its age. I was going to just put a stock turbo back in but thought about upgrading. I upgraded to an LDS 64mm drop-in unit after talking with Brent. I also put in a PPE 3” SS down pipe. I don’t run the cat and have a 4” MBRP exhaust. I told him I wanted to lower EGT’s, while towing and maybe a little more performance. Said this would work and I wouldn’t need any change in tuning. I run a DSP5 from ATP on tune 2(60hp) I believe it is, most of the time and when towing. I just did a tow that I’ve done probably 20-30 times, with a GCW of 21,000lbs. My EGT’s were 1200-1300 deg.’s on flat land(in 5th gear), outside temp was 45 deg.’s and about 2,400 elevation. This about 200 deg.’s hotter than the stock turbo was. Also when I’m going down grades and use the tap shifter to a lower gear, I’ve lost that stopping power (have to use the brakes a lot more). Found out that a bigger turbo has less stopping power than a smaller one. I called LDS back up about this and they say I need to have a tune for this turbo to get it perform right, stopping power and to lower the EGT’s. They recommended Danville.
I called Danville about this and told them exactly everything that is done with the truck and they referred me to PPEI. I called them gave the same story and they said “yes you need a tune“ to make the turbo perform the way I need it to. I called back the next day with some more questions before I drop another lump of cash. I talked to someone else and now get a different story about “tuning”. They said tuning may or may not lower the EGT’s. I really need some advice on what to do. I’m really worried when I tow in the summer and the outside temp. is 100 deg.’s and what the EGT’s will be and keeping the motor alive.
Any help would be appreciated.
My 2003 truck has a 2006 LBZ transplanted in July of 2013. The motor now has 235,000 miles and the stock turbo was showing its age. I was going to just put a stock turbo back in but thought about upgrading. I upgraded to an LDS 64mm drop-in unit after talking with Brent. I also put in a PPE 3” SS down pipe. I don’t run the cat and have a 4” MBRP exhaust. I told him I wanted to lower EGT’s, while towing and maybe a little more performance. Said this would work and I wouldn’t need any change in tuning. I run a DSP5 from ATP on tune 2(60hp) I believe it is, most of the time and when towing. I just did a tow that I’ve done probably 20-30 times, with a GCW of 21,000lbs. My EGT’s were 1200-1300 deg.’s on flat land(in 5th gear), outside temp was 45 deg.’s and about 2,400 elevation. This about 200 deg.’s hotter than the stock turbo was. Also when I’m going down grades and use the tap shifter to a lower gear, I’ve lost that stopping power (have to use the brakes a lot more). Found out that a bigger turbo has less stopping power than a smaller one. I called LDS back up about this and they say I need to have a tune for this turbo to get it perform right, stopping power and to lower the EGT’s. They recommended Danville.
I called Danville about this and told them exactly everything that is done with the truck and they referred me to PPEI. I called them gave the same story and they said “yes you need a tune“ to make the turbo perform the way I need it to. I called back the next day with some more questions before I drop another lump of cash. I talked to someone else and now get a different story about “tuning”. They said tuning may or may not lower the EGT’s. I really need some advice on what to do. I’m really worried when I tow in the summer and the outside temp. is 100 deg.’s and what the EGT’s will be and keeping the motor alive.
Any help would be appreciated.
