alcohol question

93 ragtop · 07-15-2005, 06:33 PM

I have seen post suggesting using alcohol to pass emissions inspections. How much do you mix and can you add too much. Are there any side effects to doing this? By the way, it is not my vette, its a older ford truck that I have.

STL94LT1 · 07-15-2005, 08:23 PM

Tom Wong told me to add 1 gallon of denatured alcohol to 10 gallons of gasoline.

93 ragtop · 07-16-2005, 07:12 AM

That is what I have heard as well 10-15% mix. But I wonder if there are conditions that can cause the alcohol to have a negative effect on the emissions output?

Alvin · 07-16-2005, 01:09 PM

Don't know.. Try swapping a hotter thermostat at the same time.

93 ragtop · 07-17-2005, 07:30 AM

Hey Alvin, its already got the 195 t-stat. I have been able to get away with no emissions inspection because I licensed it at 8600 GVW and those were emissions exempt. Now they have raised it to 10,000 GVW. The truck has 221,000 miles on it but the motor is a ford reman. with 26,000 miles. It idles very rough. Always has. Spent lots of money on it at the ford dealership and long story short they cant figure out why it runs so poorly. It has new injectors, they switched computers, various sensors egr valve etc. and after keeping it 3 times for a total of 3-4 weeks finnally said they could not figure it out.
Anyways it is just a backup truck for now. Back to the alcohol issue, I was wondering if it would be a good idea to try it to hedge my bet of passing inspection.

Alvin · 07-17-2005, 12:46 PM

Is it EFI?

If so ford likes to pull timing when the IAC can't lower the idle enough (you won't know it either has a high idle, nor pulled timing besides a rough idle)

If its doing that I would suggest pulling the spout connector and fixing the timing to 25-27 degrees at idle just to pass.. that will lock the timing down.

Alvin · 07-17-2005, 12:48 PM

BTW. by pulling timing I mean big time pulling timing.

My mustang was pulling vaccum threw the lifter valley. I didn't understand why it sounded like it had a camshaft. Well I hooked up my damn muiltimillion dallor sneec

and found out that the computer had pulled all the timing at an idle. imean it was idling at 8-9 degrees.