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I am on my 3rd head gsk in aprox 2500 miles. I have been going easy on the GO PEDAL since doing all the engine and transmission work. By the numbers my twins should produce 70-80 psi, but i have been pretty easy on them only going to 45-50 psi before letting out of it. I am wondering if i should...

My build up iv been working on for about a year has come to a halt. I have done alot of up grades to my 1998 12 valve ext LWB 4x4, ATS Twins ( 3000 over 5000), 4" mbrp, DDP stg 2, DDP adj fuel plate, DDP delivery valves, 3k gov, ATS Arc flow manifold/T4 ex, KDP killed, ARP head studs, #60 vlv...

Thats a huge improvement!!!! Please let me know how the new injectors work out, mpg, egt's and overall performance. I had twins installed and im still not pleased with the way they spool up. I cant seem to get them lit untill around 2000rpm. Nothing but black smoke and High egt's until i hit at...

Will do!!!!! Thanks Myoldodge

Thanks a million for the info on axle swaps, got one found and gonna try!!!!! Thanks Myoldodge

Thanks for the info. A few things I left out are the 14 housing, I had thought about changing to a 12 though. Egt's were so bad I could't pull my 3500 lb bumper pull (AT ALL). The DDP injectors are only a few months old. I should have an answer from ATS tomorrow as far as dyno runs and...

My truck is at ATS in Denver now, I spoke with the shop Forman about ten min ago. He was trying to be nice about it, but in short he told me the turbo was two large for everyday driving with the limited amount of air that the 12valve head could flow. So I said the HE'LL with it and just bought...

Changing the subject on ya, I have the same set up as you do. Same turbo with DDP stg 2 injectors. It takes forever to lite the turbo, and high egt. Are you having the same problem? And what type of 4inch lift do you have?

Iv got a 1998 12 valve with rear drum breaks. My question is, can I swap with a newer model for disk brakes? If so what year models will work? Thanks Myoldodge

I believe the 98 lift pump has a weephole to indicate a leak if it goes bad. Or was i miss informed?

Good to know about the lift pump, I will check it out. But if an injector was stuck open would that cause the high pressure side of the pump to loose prime by leaking the psi off?????

I just pulled the injectors out, all of the injectors look fine but one had a brass sealing washer on the bottom that has a larger O. D. and is very loose when slid over the tip. The brass washer is also out of shape compared to the other brass washers on the other injectors. Could this be the...

I check my oil like a religion, at least once a week around town and always while on road trips. I noticed all of a sudden the motor was "MAKING OIL", and I had to crank on it for an extended amount of time while pressing on the peddle to get it to start. And now it is smoking alot more at an...

I'v got an early 98 model 12valve with tan leather interior. The power seats dont work and are broken down needing new seat pads and covers. The seat belts are in the seat back instead of on the door post. What is the newest year of pickup i could swap seats,tracks and seatbelts out with for...

Thanks for the correction! I am getting good power from the 180hp pump. I have changed out the delivery valves, added 3k spring, ddp adj fuel plate that is in max fuel position and ddp stage 2 75hp injectors for the fuel system. ATS manifold and intake, and industrail inj phat shaft 62 w/ full...

Hey guys, im still building my 98 12valve. Here is my question. The Bosch P7100 160hp vs. P7100 215hp pump. I have a early 98 12 valve with an automatic transmission that came with the 160hp pump. Is this the same injection pump with different guts???? If so what parts are different? And can I...

I have build my 98 model 12 valve's engine to preform how I needed it to but at the same time I have build a strong enough motor that the transmission can not hold up. transmission is slipping in first and second and will not lock up, but when if and when it shifts to overdrive hold on to your...

I work in Northwestern North Dakota during the winter months where it reaches -40, I have tested several add's to my fuel checking everything from performance,fuel mileage and starting. I run #2 diesel with amsoil (cold flow improver & cetain boost) and HAVE NOT GELLED UP!!!!!!!!!! Saves money...

Off the subject, what kind of performance increase did you see with the cam change?

Hey guys, I am in the process of building up my 98' 12 valve. My question is on the subject of upgrading the turbo. I know there are a lot of opinions on who makes the best turbo's. Since I have been a subscriber to this wonderful forum on good ol dodge trucks, all my problems have been solved...