Chevy and GMC Duramax Diesel Forum banner

1 - 13 of 13 Posts

·
Registered
Joined
·
11 Posts
Discussion Starter #1
Kinda new to this Duramax stuff, I have a 6.7 Cummins with all the h&s stuff, I might get into a duramax sometime in the near Future.... Want to build a 700-800 hp DD, Whats a good list of parts, How big Injectors, and whats the best twins for these??? Any feedback appreciated.... Thanks :thumb
 

·
Registered
Joined
·
813 Posts
I think what he is asking is what it would take to get a Duramax to 700-800 hp so he can get rid of that cummins of his.

Depends on which model you go with. LBZ and LMM are pretty much the same power just the LBZ doesn't have emissions where the LMM has the dpf like your cummins had. You can make that kind of power with 40% over injectors and a S475 over stock twin set up along with manifolds and uppipes, downpipe, exhaust, EGT delete. Now your motor won't last very long at that power level. The pistons will be first to go at around 650+ rwhp although some have went higher, but a hole in the piston was the result. Forged bottom end, with twins, some socal heads, and I would think 40 over injectors at least, exhaust manifolds uppipes, downpipe, exhaust, lift pump and built tranny will safely get you to 750+ safely and easily.

I may be forgetting some things but I hope some of the vendors that really know can chim in and help you get the right answers your lookin for.
 

·
Registered
Joined
·
11 Posts
Discussion Starter #7
Thanks guy alot!!! And Yes I was talking about LBZ Duramax to Legit 700-800 HP..... are any of you all running Twins....?
 

·
Registered
Joined
·
6,215 Posts
Sdp twins.
Google it.
High quality stuff. It takes less for a duramax to hit 600 than a cummins, but more to hit 800.
 

·
Registered
Joined
·
11 Posts
Discussion Starter #9
Is that the best quality twins for cheapest price??? I would like it to be a DD not just a race truck.... how much am I up against????:rolleyes:
 

·
Registered
Joined
·
13,557 Posts
Get scotts kit. i love mine.

we sell them or you can contact scott directly.

as for the motor build you need full build. rods, pistons, springs,etc.. for 700-800 you could prolly do stock heads, cam, etc but i wouldnt (im doing everything in my current build) better to over build and not worry as much about it IMO
 

·
Registered
Joined
·
11 Posts
Discussion Starter #11
Get scotts kit. i love mine.

we sell them or you can contact scott directly.

as for the motor build you need full build. rods, pistons, springs,etc.. for 700-800 you could prolly do stock heads, cam, etc but i wouldnt (im doing everything in my current build) better to over build and not worry as much about it IMO
Alright man thanks
 

·
I'm That Guy...
Joined
·
16,689 Posts
What are your end goals? You may be able to stick with stock internals and less hp depending on goals.
 
1 - 13 of 13 Posts
Top