Pedro Posted November 24, 2010 Report Share Posted November 24, 2010 Hi everyone, im trying to find a write up on whats needed to convert a motor to alky but cant find anything. I already have the carbs but I need to know what do I need to do to the engine. For example - I have 170psi right now, what psi should i be running? - where do i set my squish/clearance? - what type of timing do alky motors run? - do i still run b8es? do i gap it to a different number? Its a 421cc cub used for 1/4 mile asphalt dragging. Am i missing anything else? Quote Link to comment Share on other sites More sharing options...
trx4502shee Posted November 24, 2010 Report Share Posted November 24, 2010 I run b9es plugs in mine and I think they are supposed to be gaped at 18 talk to the member on here his name is stroking I get alot of good info from him Quote Link to comment Share on other sites More sharing options...
drap660 Posted November 29, 2010 Report Share Posted November 29, 2010 Stroking, where you at.... Quote Link to comment Share on other sites More sharing options...
Phelps Posted November 29, 2010 Report Share Posted November 29, 2010 180-185 compression. br9es plugs gapped at .018 different motor setups like different timing. +6-+12 i run +10 running the 1/4 i would stay safe on the timing due to heat. say around +7 Quote Link to comment Share on other sites More sharing options...
J-Madd Posted November 30, 2010 Report Share Posted November 30, 2010 Most important thing is to start way rich and work your way down. The first pass down the track on a new setup I like it to spew alky all the way down the track. You may not want to run a full 1/4th mile like that, as you'll probably run the bowls dry. I assume you have a dual pingel, gutted gas cap, and billet bowls. Suggestions above are a good starting point on timing, etc. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.