i bought a 2007 lbz duramax classic back in december this truck is flawless from top to bottome well taken care of ive had very little issues out of the truck 90 000 miles on it, Truck to my knoweledge has a efi live tuner, Aftermarket injectors not sure the size yet , raptor lift pump and plenty of other toys such as egr block exc.... im running close to 40lbs boost when i turn it up about 15- 28 daily , only issue i seem to have is the up pipe from the passenger manifold to underneath the turbo and into the non existing egr keeps busting in a flex , on the branch off to egr snaps it after about 2 months once replaced , is there anyway i can fix this permenately with either an after market part that anyone can direct me to or is it possible to actuall cap it completely with a professional weld?
07 lbz help
- Thread starter 07Dirtymaxlbz
- Start date
The first thing I would do would be have it re tuned. If your turbo is stock 40psi is way too much boost. Your truck will run better at 32-34 psi. This will also help your issue.
on quick burst itll peak a 38 to 40 but on a long burst itll peake the 38 but itll steady pull at 34 thats turned all the way up , but ill definatly have my tune checked out to save me from future problems thank you.
Alright thank you ill look at those and see what i can find.
Alright thank you ill look at those and see what i can find.
If your holding 34psi that's not too bad. The first tune I loaded in my truck held 40 psi, egts were through the roof and I'm sure drive preasure was high also. My tuner made some adjustments and got it down to 32 psi. I had lower egts and more power at that level.
It does seem to do alot better at 32-35 lbs. I also noticed they do alot better about a 3/4 throtle instead of full. after i get my up pipe problems fixed im gonna take it to the track and see what itll run ive been predictied to lo 13s to high 12s due to cars that have been beat on other tracks
Awesome, I guess ill be looking into that or looking into having mine caped and welded . That or spending 1500 dollars on a set of after market manifolds and up pipes.
Need some more recomendations if you dont mind, whats the best kind of air system to run, im currently running air raid cold air set up and ive told those arent that good for them , and also exhaust im running 4 inch back open what do you think would be better
Just get this or have your's done like it. No need for manifolds and up-pipes where your currently at.
http://allseasondieselperformance.com/index.php?main_page=product_info&cPath=92&products_id=252