Return fuel line with carbs?, Anyone running return fuel line with cabs? Options

[lonewolfe]

Are any of you running a retun fuel line with carbs?

[brant]

also...

I've run many a rotary or low pressure pump with return line systems
so no need to buy a special pump


I would add... in theory at least... the cooler fuel promotes more hp
so because my application is a race car, its worth the additional effort. I also use insulated sheeting/wrap on my fuel lines in the engine bay... same idea... cooler fuel.

race cars often run fuel cooling canisters... I know I briefly had a spec R7 and those were considered mandatory for hot rotary engines running at altitude. also note that we have a race in Colorado at Snowmass - aspen... I don't know the altitude... but probably 8000 ft? altitude effects cooling... air mass effects cooling... anything that could prevent a problem is worth considering


not something you may be able to feel
but why did the factory go with a return line on the 914/6 ?
all cars made in the last 30 years use return lines

I can not tell any difference with or without the return on my fuel line when judged by seat of the pants.... however any and everything that could be better is worth considering.