need help guys
 

my poor old gmc has a problem, a lot like me. we go into limp mod past 65mph , boost set at 10-11 lbs , dont use vacum at all have spring kit- 20% over turbo-new heads pump-injectors – map sensor why???

Welcome :howdy: not sure about your issue can you be more specific.RPM's ,EGT's ect

welcome to bombers, sure someone will help you out. Give fuller descriptions, always seems to help.:pals:

Please do not post questions here. Scroll down to the Chevy Forums, post your question there - and someone will likely be along to help.

Here: Chevy/GMC 6.2L and 6.5L - Diesel Bombers

x2
:hi:

:howdy::howdy:

Welcome to DieselBombers :c:

Welcome to db :c:

dah old newbe
 

Well first sorry mr. Evil I am new at this. It’s a 98 GMC with a 6.2 military block, 6.5 heads [ German ] turbo has a impeller change will do 20% over stock. Injector pump stock, e max tork spring kit on waste gate [dump at 11 holds 10 lbs] stock ECM new map, stock injectors. It retards the injector pump after 65 mph till I shut it off to reset. E max has a ECM 596$ stock 180$ do I need the e tork oh it has new injector brain after market.

Welcome, and do go over to the link the good Dr. posted. We'll see if we can't find you some help!