So this is the truck that started my addiction. This is about what it looked like when I brought it home in 2010. It has had a few different turbo, injector and pump setups. I'll just give a quick run down of what they were and what the current is.

 

 

First setup (past stock) was a set of cpp 7x.010s, he351cw, tst pm3/diablo power puck/smarty, built auto, and ad II 165.

 

Next notable setup was a bit of a step up. s467.7, Infinite performance 6x.013s, tst comp/ts mvp, common rail cylinder head, same built auto and lift pump. All this time was on the original injection pump which I did not realize until I ppumped.

 

 

The day after the dyno I decided to ppump to meet my further goals. Only things I changed was the injection pump and cylinder head (common rail head does not have the clearance required for a ppump). Single best modification I have ever done to the truck. Less smoke and more power. I ran 3 different turbo chargers with the first 180hp pump. S467.7, S475 and finally a S472. At which point I decided I needed compounds. Dyno sheet is for the initial setup. A 180hp pump with 5ks & 024 dvs, same 6x.013s, same trans and same lift pump. With a bit of nitrous involved.

 

And that brings us to the fun one. The compounds. The secondary (manifold) charger is a 66/68 with a .91 t4 housing. The primary is an S4T 86/110 with a 1.15 t6 housing. At this point I did purchase another ppump and sent it to Farrell Diesel to be benched. Transmission has been updated to a monster pump mike bolt together torque converter, larger input shaft and one of mikes outputs. I also stepped up to larger injector from Infinite. 6x.018s. It is a bit rowdy now lol.

 

 

 

 

I haven't seen a 7 hole run like the 6 hole injectors I had, power wise. There are so many variations in nozzles between the design, machining, pop pressure etc. It turns into a black hole very quickly. I can tell you for a 24v when you want to make all out power....6 hole is favored. The 7 hole injectors I ran were just as dirty as the 6 holes. But that was long before the movement in the tuning world.

Nice, that's good insight into it all though. If 6 and 7 hole injectors were both as dirty then seems that with tuning abilities of the quad, might as well go with the 6 hole. Now I need to wrap my head around what size to get with the idea of having larger injectors then wouldn't typically been matched to our turbo. It never ends lol

Personally I see no need to go any lower than 7 x .010's / 6 x .011's on a stock turbo truck anything smaller than 7 x .012's / 6 x .013's on a 62 mm turbo.    beyond that the vp is tapped for power.  

3 hours ago, Me78569 said:

Personally I see no need to go any lower than 7 x .010's / 6 x .011's on a stock turbo truck anything smaller than 7 x .012's / 6 x .013's on a 62 mm turbo.    beyond that the vp is tapped for power.  

 

Nice, that sounds like a good plan for me. I think I'll go 6x.013 and scale them way back with the quad on my HX until I can drop in a 62/65/12.

@jlbayes

6 hole is favored. The 7 hole injectors I ran were just as dirty as the 6 holes. But that was long before the movement in the tuning world.

 

When was the movement in the tuning world, per say?

^{~1 - 2 year}

6 minutes ago, rogerash0 said:

@jlbayes

 

 

 

When was the movement in the tuning world, per say?

 

The Quadzilla and then the Smarty mm3 & udc pro. Which smarty has been less than transparent about anything the sell.