GDS 60mm

[JQmile]

I'll know tommorrow. I don't think I'll see much till I bump the timing, but the dyno test will be informative. stock HC1+DDP4's vs 60mm HTT upgrade with an external wastegate and 6x16s.

[RSWORDS]

You going to shove the pump to the head for one run to see what the extra timing does for you?

[JQmile]

Hit the dyno today and still on stock timing. Can't break 302 to save my life on fuel, hit 301 again, the exact same number as with the ddp4's and stock turbo....but with nitrous, holy crap! I was hoping for high 300's, as I hit 339 with the DDP4's and spray....but nope--448/842 with 900 psi bottle pressure and a -3 line! I'm glad to finally have some good numbers even if it is on spray, and those numbers tell me that even with the 60mm, the truck is still starved for air if it can make that kind of power jump on nitrous.

[Firstgen1]

did your tranny hold good? when you puting more posts on diesel power mag

[dvst8r]

Hit the dyno today and still on stock timing. Can't break 302 to save my life on fuel, hit 301 again, the exact same number as with the ddp4's and stock turbo....but with nitrous, holy crap! I was hoping for high 300's, as I hit 339 with the DDP4's and spray....but nope--448/842 with 900 psi bottle pressure and a -3 line! I'm glad to finally have some good numbers even if it is on spray, and those numbers tell me that even with the 60mm, the truck is still starved for air if it can make that kind of power jump on nitrous.

It is also starved for timing, as nitrous is essentially timing and air, in a bottle. This is why if you look at big tunes in like an efilive, big air only tunes use a lot more timing then big nitrous tunes.

I am really curious to see what your HP would be like if you jumped a tooth, and set it at the stock timing mark, or there abouts.

How well did your external gate work?

Oh and good job, at least you are starting to make some progress!