:::RHMT::: Real Home Made Turbo

General Category => Engine Management => Topic started by: t_cel_t on November 18, 2011, 06:00:48 AM

Title: e85 miss in cold
Post by: t_cel_t on November 18, 2011, 06:00:48 AM

the tercel is running e85, around a 11:1 gas afr( that means its still using the gas calibration) at about 10 psi on a td04.
problem is all of a sudden when it got cold out(went from like 70's to 20's in like a week) im now getting a miss. AIT's are like 50 degrees at 10psi. ran fine when it was 70+.
gonna buy some new plugs and gap them closer, do you think this will solve the problem? do i need to run a hotter plug? change timing?

ive heard that e85/e70(winter blend around here) is just too cold of a fuel combined with cold air.
any experience with this?

Title: Re: e85 miss in cold
Post by: Joseph Davis on November 18, 2011, 09:38:04 AM

Insufficient information.

Title: Re: e85 miss in cold
Post by: HiProfile on November 18, 2011, 12:45:04 PM

Aim an electric heater onto your gas tank til gas temps are 30F warmer. Check car again.

All the vids I've seen about Brazil cars is they have a auxilury cold-start tank of regular gas, and the exhaust is routed to heat up the e85 gas tank. You could build the exhaust like on my civic, where the e-cutout dumps right onto the gas tank.

Title: Re: e85 miss in cold
Post by: Joseph Davis on November 18, 2011, 03:07:40 PM

Cue stock RB25 AEM calibration startup screen vs 1000cc E85 AEM calibration startup screen.

Title: Re: e85 miss in cold
Post by: HiProfile on November 18, 2011, 08:28:49 PM

I'm not baller enough to do that, but I know e85 startup fuel trims are expotentially higher vs gasonline.

Title: Re: e85 miss in cold
Post by: t_cel_t on November 18, 2011, 09:08:54 PM

ok more info?
toyota 5efe
decapped wrx injectorators
megasquirt
stock ignition with a bosch smart igniter
ngk's at .044''
probably e70
dont know what else

titties?
(https://realhomemadeturbo.com/forum/proxy.php?request=http%3A%2F%2Fnsfwworld.com%2Fwp-content%2Foriginal%2F2011_03%2FPerfect-hourglass-sexy-tits.jpg&hash=c28f5da06830f0382046ca59ee6f69eb1859e3e5)

Title: Re: e85 miss in cold
Post by: HiProfile on November 19, 2011, 07:11:45 PM

This may sound dumb but have you tried reducing the plug gap? Am I to presume it's also the stock heat range for that plug? That could also play a part in this.

Title: Re: e85 miss in cold
Post by: t_cel_t on December 18, 2011, 11:23:04 PM

well ive been pretty busy lately but i did throw new plugs in the car that i gapped at .022 and i havent had a miss for a couple weeks.

side note, 40 degree MAT's are awesome O0