Sbm1965 wrote:
Hello all,
I'm new to this forum and I've just started a "book" chassis. I'm considering a motorcycle engine.
Has anyone built a Locost 7 with carb induction? I'm trying to keep it as simple as possible.
I read that Legends racecars (all 7000 of them) have carbs, so no sensors, ECU, or high-pressure fuel pump,
On the Legends FBook page, a set of 4 carbs sell for $100, which is Low Cost!
my wife and I own a race shop we tend to cater more to motorcycle powered cars.
we do work on a number of the dwarf and legend cars along with god knows how many road course racing cars.
we are also a Rush SR dealer offering rentals , sales , service parts , and track side support for rush cars.
depending on the oil sump / pan they do not have an oiling problem. some engines will be fine with the stock pans some not so good. how ever for a number of the popular bike engines places do make pans for use in cars.
fuel pumps : most your not needing a super high value or pressure pump to make the fuel injection systems work.
for the Suzuki engine that we tend to deal with most the fuel pressures are about 42 to 43 LBS pressure with a flow rate of 223 ML in 10 seconds.
so the fuel pumps are not any more money for a good one than what you would need for a carbed engine to run. I'm not talking about the cheap 35 dollar pumps you can get off amazon that are crap off shore junk. I'm talking about quality pumps with brand names.
if the engine your looking to use has all the goodies and is using a ECU they are pretty easy to wire up to work in a car.
clutches: for street use being the clutches don't have a flywheel you need to slip the clutch more to get the car rolling. so in some cases yes it will not last as long as it will on a bike. but !!!! clutches are about 300$ for most and unlike in most every car are very easy to change.
for track use like the cars we deal with most there are no big clutch problem as once the car is out on track running your not starting from a stand still.
if your going to go with a car that uses an ECU you then can add in auto blip for down gearing and flat shift for up gearing. so no clutching is ever needed once the car is rolling along.
electrical: most bike engines can handle the basic power needs your bike engine powered car uses. really the only time we have encountered the bike engine not having enough juice is for the people that want to start adding things like stereo systems other that that your car uses and needs the some things as a bike to be street legal.
the only real other add on is another head light and tail light.