Old Style Alcohol

[b4black]

OK, I just installed a DIY injection system on my TR. The TR is an "Old Style" '83 with a carb/turbo. The alcohol injection is also "Old Style", a low pressure, washer fluid pump spraying just before the carb.

The pump puts out ~30 psi and I bought some water misting nozzles from McMaster (M5, M10, M15). It's sprays a fine mist in the air duct just before the carb. It's switched come on at about 8psi and I'm hoping to run about 15 psi of boost. (I have about $25 into it ).

I have no idea on how much alcohol to run. I am running 50/50 water/ethanol (denatured). I have a 10 led knock gauge and an EGT gauge (that I'm not too familiar with yet). I also have boost timing retard I can work with.

Any advice to get me started? Thanks.

 

[salvageV6]

Turn it up 1 psi. at a time until you see KR.

Assuming the car was tuned and running well on a decent street chip prior to the alky. install.

Skip the EGT gauge for now and tune with KR for sure.

I wouldn't play with the timing just yet either.

Boost in 1 psi. increments should be easier assuming you have an adjustable actuator.

50/50 is a good start too, make sure you can tell if it's working before you start out daily by trying the pump with a test switch especially once you turn up the boost. When the pump is dead you want to know it before boosting if at all possible.

 

[turbo buicks]

Originally posted by salvageV6
Assuming the car was tuned and running well on a decent street chip prior to the alky.

isnt his car carburated?

 

[b4black]

Yep, it's carbureted. Factory chip in the ECM (no other choice). Adjustable actuator and relief valve to control boost.

Should I richen or lean the fuel mixture any?

 

[6SENSE]

Originally posted by b4black
..........Should I richen or lean the fuel mixture any?

If the alky is doing what its supposed to, you should be able to work in a bit more boost. Sooo, let the boost lean the mixture . Run as much as you can, watch for KR, and adjust accordingly for it. I wouldnt think youd want to change anything on your current setup [quite yet] if all is running well. IMO.

 

[salvageV6]

I thought I was clear.........

Listen to the '84 guy.

 

[b4black]

Success - 9 tenths and 8 mph

http://www.turbobuick.com/forums/showthread.php?s=&threadid=98304