Jim Fulmer

I've said the above all along but people just want to pour something in and it work the best.........it won't, I could really careless what the side of some container says......mix 50/50 with the real stuff and try it and you too will see.

Word to the wise, don't think that you can buy a kit, throw it on and it will be at the optimal setting.....there are too many variables, I have a tendency to start at the max and back down as needed, if you get too much water in it will just blow the fire out a tad.

Jim

John_P

rjohnson:

Sorry about the box being full! I cleaned it out if you
want to resend the message.

---------
John_P

RowJ

Thanks for the help. Not done testing...just looking for imput that could shorten the process.
Original 150 pump setting was recommended by Matt Snow. Will try full (220 psi)!

Dockboy

No Problem

Greg

RowJ

Full pressure setting (220 psi) on pump made big difference. No quenching with straight distilled water.... Stage I coming in at 25 psi and Stage II set for 40 psi.
Get maybe 1 psi increase in boost with only H2O.
Change in EGT's was interesting. At lower power settings (PM3 at 1 through 6) and WOT, EGT's spike and then drop 200-300 degrees. At higher setting on PM3 and WOT, had to momentarily back off throttle to "start" reductions....either that or I just did not wait long enough for it on it's own. But with EGT needle pegged at 1550*, I get nervous after 5 +/- seconds.

Other big difference is a noticably slower rate of climb in the EGT's.

Will try Stage II coming in earlier to see if I can control duration of the temp spikes at higher settings.

Can see where this is a great addition for hauling heavy or towing long hills...as discussed elsewhere. See http://www.turbodieselregister.com/f...d.php?t=111147 .

Note: See final test results on 10/31 post.
RJ

Dockboy

RJ,

Remeber, by adjusting the upper limit(stage 2) for a lower pressure, it is not really making a stage "come on earlier"

If you have the variable controller, it basically ramps the injection pressure of the pump up as the boost rises starting at the injection on setting(min pres.), to max pres. at the "stage 2" setting. The closer those 2 settings are to each other, the steeper the ramp, or quicker the pump reaches max. injection pressure.

Greg

mhuppertz

Water injection radically cools the inlet charge, and in dry climates can cool your inlet charge down so much that the intercooler might even be warming it back up!
With injection pumps set advanced, the water will slow that burn just a bit and you will see more HP. Methanol adds to the fuel load, so it will add HP.

RowJ

Finished testing with straight water injection...to control EGT's. To the half dozen, or so, members who pm'ed me asking about test procedures as well as findings...these are final test results.

All done at 70* OAT, 650' elevation, 4% grade uphill. 60 mph to 100+mph, WOT, w/ TST PM3 on #9.

WITHOUT H20 INJECTION;
-Max EGT - Pegged on gauge at 1550*
-Rate of climb to pegged EGT - 6 sec.
-Boost - 50 psi
-From dead stop to max EGT - 8 seconds
-Holding 30 psi boost, allowing speed to increase - 1000* EGT

WITH H20 INJECTION..on at 20 psi, max at 25+/- psi; pump set to max pressure (220 psi).
-Max EGt - 1450*
-Rate of climb to max EGT - 11 sec.
-Boost - 51 psi
-From dead stop to max EGT - 16 seconds
-Holding 30 psi boost, allowing speed to increase - 800* EGT

By greatly increasing when H20 comes on and setting pump at max pressure..I eliminated the higher peaks (egt's) before they dropped, that have been described by those towing.

Made 3 tests, with H2O, at WOT to 100 mph...than holding that speed. EGT drops where massive... 300-400* without climbing back up! Very impressive IMO.

Have no idea how these figures would compare with using some, or a lot, of Methanol. I have all the HP my non-WG turbo can handle efficiently...my goal was controling EGT's.

RJ

Jim Fulmer

RJ

When your doing your dynoing try it with and without using the above setting and fresh 50/50 mix, I'm real interested in the HP gain with a B-1......my guess is 80 hp.

BOTW, that is some real good data......isn't R&D fun!

Jim

John_P

RJ:

Thanks for the great report! I am glad to hear you got your
water system "tuned" to where it is working good for you.
I know that it sure helps my truck ALOT!

Take care.

---------
John_P

Jim Fulmer

RJ, you could also try the same hill test with a 50/50 mix but you said you didn't need more power, I guess my mind doesn't work like that

Jim

RowJ

Would love to test w/ Meth...but without a wastegate seems counter productive and possibly resulting in some damage.
When the next HP craving hits (notice..did not say if), next step will have to be wastegate or maybe twins. For now it's time to pay down some credit cards!

Thanks again, for the helpful comments, from all those who have gone before.

RJ

skinnybenny

in our pulling truck we run a 50/50 mix of water and cutting oil. (the water soluble kind) http://metzgertrucking.com/motorsports.htm

fredw

i took mine to the dyno yesterday with the wi hooked up, i ran a 60w40m blend, as for the duramax it seams to drop the temps a coulple 100 degress, and made ussally around the 40hp extra and 80 tq, looks to be a real nice addition

wannadiesel

Cool. I can't wait to dyno mine with the meth on! It feels like 50 HP or so.