Well, I placed an order for some more go-fast parts from DAP..
Injectors (5x012 SAC 155*)
Delivery valves ("towing")
Delivery valve tool
AFC springs
Tork tek adjustable OFV.
And for all the trucks I work on, I figured I might as well get some "stock"
3 sets of 3/4 K gov springs (I want to try the 4K, if they're tame enough at 1200 RPM i'll keep them)
bunch of delivery valve and injector O rings, gaskets, and knicknacks
An extra boost elbow
I've had nothing but hell with my 4ks.
I think the pump is just not right, can't keep stready rpms around 1200. Cutting the place holders at least gave me control off idle up to 1200. But now I can't get past 3500 lol.
Let me know how you like the dvs. I've got a set of 5x12s and honestly with my #0 plate maxed I feel like it's too smokey already.
Seems like there are different flavors of 4K springs.. I know what you mean about the 1200 RPM surge, I notice it (especially cold) with my 3200's
The ones I'm getting are 3/4 k springs, where you install the inner spring for the 4K version, if the inners and outers don't come on at exactly the same time, that should help with smoothing it out...
I went conservative on the DV's, I'll see how the 5x12's are.. considering i'm running totally clean at the top end I know I need some more fuel (that's with no fuel plate and shimmed plug). I'm also getting AFC springs, and the overflow valve, all of which should help
For smoke, I think I have a bit of an edge on you since I have a cam and ported head
Reason I bit the bullet and am doing it now is there's going to be a 1/8th mile drag event in town at the end of july...
With the NV4500 I know I'm going to lose a lot of time shifting... you think I'll be under 10 seconds?
Oh, and heres a good thread about GSK's and jumpyness
GSK issues FYI - Dodge Cummins Diesel Forum (http://www.cumminsforum.com/forum/94-98-performance-parts-discussion/1914545-gsk-issues-fyi.html)
Got the OFV, DV's and injectors in... She sure is smokey now.. will have to tune it down a little.. 4k gsk will have to go in at some point too.
So much faster now though right ? Gimme a hola if you like to smoooooooooooke, haha
haaha, will have to adjust the AFC and perhaps put the fuel plate back in (I got AFC springs too). I didn't notice any faster spooling, or torque at the bottom end, but it does come on a little more violently when the AFC kicks in