Quote:
Originally Posted by Daytona Dek
Sorry if this is a bit of a numpty question but my Daytona fitted with a 302 and Edelbrock Thunder 1805 carb is difficult to start when it’s still hot. I think it’s due to fuel evaporation not heat soak on the starter. It will start eventually but after an embarrassing amount of churning. Is there a technique I can adopt to improve things like opening the throttle wide but don’t know the exact details?
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If you think fuel evaporation due to heat soak is the issue,
lifting the hood after shutdown helps. Of course in a Daytona
that's also a PITA.
Check that fuel lines are not making contact with the engine.
Insulate fuel lines near engine.
Install a heat shield kit around carb.
If all else fails you can also try...........
Using non-ethanol fuel mixed with unleaded racing gas.
Race gas has a lower RVP (Reid Vapor Pressure) rating
for the specific purpose of better starting characteristics
of heat soaked engines. Downside is you may need to
adjust/tune for it. Sunoco 260 GTX is non-oxygenated
unleaded 98 octane. 91 octane non-ethanol mixed
50/50 with 260 GTX is confirmed to work well for hot
starts and reduced vapor lock tendencies.