Built H22, 10:1 Arias, 70mm throttle body, GE intake, Revhard exh., GT30 with .82, MSD digital 6, intercooler, Fluidyne rad., FAL fan, stock cams, 980 injectors, Cooling Mist Meth./H2O injection, Hondata S300, Tial 44 wastegate, etc., etc.

I had been running race gas (113) octane C120. Max of 18 psi. Winter came in Oregon and temps in the 40 - 50 degree range were common. Car was switched to E85 this last summer. Around early Oct. car began to cut out when rpms hit around 4-5K (H2O/meth kicks in @8 psi). Took it to a dyno shop after checking obvious things. (plugs, fuel press etc.) Shop put it on the dyno and AFRs when under boost were way rich. Put in stock dist. to bypass MSD, different injectors, different CPU, plugs, etc. but problem continued. They finally dc'd the alch./H2O injection and reset the fuel to compensate, (11.5 AFR) Car ran fine but injectors were around 100% duty cycle. They removed the meth./H2O mixture and replaced it with E85 in the 1 gal. Cooling Mist tank.
Injectors now are @ 80 - 85 duty cycle and the car runs fine. Sounds like E85, H2O/meth at 40-50 degrees, combined with 40-50 degree ambient temp. and an intercooler, may have caused the H2O/meth, to puddle right in front of the intake where it is injected. the cooling Mist pump operates at 100 psi. Bumping it to 150 psi might have also alleviated the problem. Hope this can be helpful to someone else with similar problems and save them the $750 it cost to fix.

 

hm, good info. besides this episode, how do you like the liquid injection?

 

Worked well and kept injector duty cycle at a reasonable level. Could have used it with pump gas and kept cost of fuel lower.

 

Why E85 and Meth? The E85 should be more than enough for the power that your 30R puts out, BTW the cooling mist kits are garbage, especially the nossles, scrap that and just tune on the E85.

 

^^I'm sure not ALL of the nozzles are junk. If you look around I'm sure you can find something decent.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96 GSR-T &raquo;</TD></TR><TR><TD CLASS="quote">Why E85 and Meth? The E85 should be more than enough for the power that your 30R puts out, BTW the cooling mist kits are garbage, especially the nossles, scrap that and just tune on the E85.</TD></TR></TABLE>

Cooling mist kits do have shitty jets.. I only like their pump...lol

 

damn, i never knew. even the aquamist stuff blows? is it even still worth running? are there any better jets that you can use?

come to think of it, i'm surprised RC never came out with anything water injection related. you'd think that they could come up with something decent.

 

I have a new cooling mist kit sitting in my garage, thats how I know they are ****. I agree with tony that the pumps are fairly decent, the nossles are just a basic threaded brass plug with an orfice drilled in it, not exactly a nossle IMO. I would look into FJO's new Kit with integrated boost controller, looks pretty interesting and of much higher quality

 

The aquamist kits are far from junk. Their quality blows all the others out of the water IMO.

 

So you're driving around with e85 in the water/meth system's tank? What happens when it runs out? I would ditch that setup immediately and run bigger injectors. And as far as using water/meth injection with e85, I thought that one of the biggest benefits of using e85 is that you don't have to do any of that **** to run a lot of boost..

What you've done with using your water injection system as a supplemental fuel injection is very similar to an idea I've had for a while. Add 4 more injectors to the manifold, trigger them with a window switch style output on your ecu, and tune accordingly. Obviously you'd have to take out a massive amount of duty cycle from your main injectors as soon as the secondary ones came on, since they'd be steadily on, but there is no reason why it wouldn't work. I'll probably be the first to actually do this, unless someone else has and just hasn't posted about it.

 

I was running the H2O/meth with race gas (the less expensive 120 which is 113 octane) just for added insurance, as in - didn't know any better.When I changed to E85 I left the Cooling Mist unit on just because it was there. I was surprised that with the water/meth. shut off, the 980 injectors were maxed with the E85. (443whp @19 psi) So I used E85 in the H2O/meth. tank to add some more fuel and keep from maxing the 980s.
Maybe I could run E85 @ 19 psi but I hate to toss a new set of 980s and buy a third set of injectors.???????