Drag Racing Discussions > Front Engine Dragsters
Changing over to alcohol.
jeff/21:
we switch from gas to alcohol 5 years ago we ended up removing the rad and pump as it wasn't needed .After the day empty the tank add gas and let it run until black smoke shoots out of the headers and idles rough.
ran jet extensions in the rear bowl now we just changed to injection. like everyone says you'll never look back
novacain:
Guys thanks for all the great info. I have the car back together and think I've solved the overheating issue. The problem I have now is a dead spot in the transition between the front an back barrels. The carb set up is as follows. carb # 80535-3, jets frt- 144/ rr 144, power valves frt 6.5/ rr 8.5, nozzles frt #50/ rr #52. With this set up it is much better than it was out of the box but I still have a flatspot. Any ideas? Thanks again .
Mr Froggy:
--- Quote from: ricardo1967 on October 12, 2015, 09:55:40 AM ---
--- Quote from: Mr Froggy on October 12, 2015, 07:42:00 AM ---I have a 68 Dodge Coronet with a 383 and I dropped almost 4 tenths off my ET when I switched to E85. It was hard to believe but it happened. I was impressed!
--- End quote ---
E85 works! What is the compression ratio?
--- End quote ---
10 to 1 is the compression. Believe it or not I'm still running the original long block from 1968. I did give it a set of fresh bearing,rings and hand lapped the stock valves but other than that its genuine Chrysler steel. I have about a grand total into the engine and half of that is the E85 carb. It runs 12.50s all day long in a 3600 lb car.
Besides the carb everything else is the same as when I ran gas. I have a good low restriction filter coming out of the tank and a Carter electric pump on the rear frame rail feeding a Carter Mechanical pump on the engine with 3/8" line all the way. At the end of the season I remove the carb and run Marvel through it and flush the rest of the system out with gas and have never had a problem. Its great fuel!!
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