weak 12 valve
 

alright boys i have 98 12 valve 4k gsk twin turbos top turbo is 12/62/68 bottom is a ht3b with a 26cm ex. housing. 100 plate full foward tuned afc.timming at 14.5* head studs and i just put in a set of 5x.014 injectors from sdx this truck is still weak and cant figure this one out need help

I've never had a truck quite this built but my guess would be lift pump? is it still stock? and it could just be the way your pump is tuned. thats just my best guess

I'd check to see if the timing has slipped.

intercooler leaks possibly or check the fuel pressure would be my first two thoughts

whats a good way to check for boost leaks

Look hard at the transmission too. You can have all the power in the world, but if you cant put it to the ground its useless.



Boost leak tester:

https://www.dieselbombers.com/5-9l-2...ak-tester.html

https://www.dieselbombers.com/24-val...ke-system.html

https://www.dieselbombers.com/dodge-...tructions.html

ur exhaust housing is to big im thinkin

his exhaust housings are fine, there is always the chance your cam is retarded a few degrees which will ruin performance. i have seen this happen to stock trucks built from the factory its the main reason why some trucks just seem to run better than others. good luck figuring it out

i dont guess there is an eazy way of checking to see if the cam is set up right is there

no clue but when you find out let me know