Well I've finally gotten an "Everything's Working" dyno run completed.

Today's run presents with:

243HP/522ft/lb on straight #2 (Red Curve)

263HP/532ft/lb with water/methanol (50/50) (Blue Curve)




It's interesting how the W/M gain improves as the RPMs go up.
I actually had a run with 266HP but the torque was down by 10 or so ft/lbs.


I'm happy with it considering it's pretty tame fuel-wise compared to most.


This was on a DynoJet 238 at http://www.fastlanemotorsports.us/ (72*F, 6%RH, Barro 29.71", Dew point 1*F), SAE corrected.

 

You're not spraying enough water/meth. Usually guys with enough air see more of a gain than that.

I think with a good TC in there you could get 'er in the 280's. And it would be really fun to drive.

 

The transmission's next. I'm dreading it. It pretty much boils down as to whether I rebuild it myself, or farm it out. I'm fairly confident I can do the work, it's just I'd rather not have to pull it two or three times getting it right.

I've a notion to up-size the W/M feed-line from the pump to the injectors. It's more than 15' long as installed (1/4" tubing). At that length, 3/8" ought to reduce any pressure drop at full flow.

I've been thinking of going to the next level with a larger turbo and injectors, but then I'd want to O-ring and stud the head to ensure it stays together.

. . . . . It'd be ashame to not sneak in a cam while I was in there . . .


. .. $$$$$ . .. .



. . . . and then there's the wife thing . ..

 

What do you have done to the truck?

 

Wow!!!

Congrats David.

I knew you had done the work for that.

Yea, that trans....what all do you want to do to it?

 

NIce.. I have been waiting to see what your REAL numbers are

 

My heap amounts to an internally stock 6BTA5.9 with ~

(Air In - -> - -> Air Out)

IN ~ 100% outdoor air free-flowing into a fully enclosed BHAF - - > Four inch smooth walled turbo feed duct - - > Modified TAG-III - - > PDR HX35 hybrid turbocharger - - > Three inch duct - - > Banks After-cooler - - > Three inch duct - - > Banks TwinRam intake.

OEM Stock Long-block.

OUT ~ Ported ATP exhaust manifold - - > 14cm W/G turbine housing - - > Four inch down pipe - - > Four inch full exhaust including a very large, very quiet high-flow muffler and resonator.


FUELING ~
* Cummins piston lift pump.
* IP mods include: 3200 gov spring, Custom grind fuel pin set to most aggressive position with washer removed. Fuel pin spring set for moderate low boost smoke. Fuel screw won't go in any more. Timed at 2.0mm @ 0*TDC.
* PDR 190 injectors.
* All linkage etc set to ensure full throttle travel.

MISC ~
* Fleetguard FS1221 fuel filter/separator
* MBC set for 38psig max.
* Fluidampr
* Synthetic oil
* CoolerMist Varicool W/M (50/50%) start 15psig, full on 30psig. Two 18gph (@ 150psig) nozzles. (Still can't bog it).
* Valves set at 0.008" and 0.016" cold.


Full TranGo kit in the A518 with an OEM Super-Slip torque converter.

 

Well I just re-plumbed the W/M system from the pump to the nozzles replacing 22' of 1/4" OD tubing with at least two compression type fittings that use the inserts in the plastic tubing (very small ID). It's now one single piece of 1/4" ID tubing.
I've also removed the check-valve completely for now as I can't seem to make it drain on its own. Out to lunch there.

It accelerates MUCH harder now!

Still can't seem to bog it at 15psig boost on up.

 

If you can't bog it at full pressure your system is too small.

The water/meth is good for 40 HP when set up right.