[David 377]

At 12 lb of boost I don't think I need to worry - the car has always rub around 190 - 200 when 80 - 90 degrees. Also blowers produce heat - I guess i'll find out - Thanks

[bentwings]

After 22,000 miles on the street with my blown 355 I see little reason to run as much boost as you are planning. Frankly you just can't step on it long enough or hard enough to really get up a head of steam. I can exceed any speed limit in the state in 4 seconds and you can hear the motor, tires and exhaust for several blocks just stepping on it......So can LLE. You will attract them quickly ratting around doing burnouts and what not. Believe me they can appear out of nowhere. So plan on taking it easy on the street.

You are way over thinking the blower. Put a couple 750 dp, referenced carbs and underdrive the blower...either one so you get no more than 6-8 psi boost. If you can get E-85 easily fine run it. You will need a big tank.

You will need an AFR gage to get the tuning right. E-85 will read differently than gas but you will just have to compensate for that. I think you will do well to spend your time studying how the carbs work with the blower and tuning so you can drive easily and reliably in traffic. You will get some really nasty looks and Universal love salutes if you stall traffic or cause problems.

[David 377]

Thanks guys!

[67Mustang Al.]

Originally Posted by David 377

My concern is overheating on the street with too much overdrive heating the air in the supercharger and causing detonation E85 fuel runs cooler right? Anyone have a supercharger with E85 and what do you know about how it works.

We have raced a 3 series BMW here in AUs for the last three yrs using E85 fuel. Yes it runs cooler than our 91 octane pump fuel, but not as cool as methanol. It is harder to start on cold days as well so your plugs may need to be a stage hotter. You need about 30% more volume of fuel going through the injectors to get the dyno hp up. We have around 300 hp out of a stroked 6cyl. (2970cc0) We increased the injector size and duration and run GM triple coil packs and tossed the standard distributor in the bin. With two carbs running E85 + supercharger, you will probably need to up your jet sizes to flow more E85. We havent played with carbs and E85 so it will be a case of research. We have learnt quite a bit over the three yrs with E85 but still learning.
Al.