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Here's a question I get asked at least once or twice a day recently, most often in my Instagram messages. It usually goes like this:
"Hi, I like your videos (man/dude/bruuuh)!. I wanna do a bike carb conversion on my _____insert ancient obsolete engine here_______, but I'm confused when it comes to ________insert something simple and obvious that has been explained in the videos______________."
So I try to point people to my videos, because all the info is in there, it really is, that's why I made them. But who wants to watch a 20 minute comprehensive, detailed, informative video? Many people seem to want bite sized instant simple answers to complicated questions. So when someone asks me that question above it somehow always turns into a lengthy back and forth chat with me explaining things to people individually. And while I am okay with that, and you who have been watching this channel for a while know that I make a serious effort to answer every single question I am asked, this has now reached a stage where it's simply unsustainable for me to answer all of the questions individually. So I decided to make this super simplified 5 min bike carb conversion guide / tutorial / crash course/ on installing bike carbs on your car engine. The next time someone asks me the simple question above, you're just getting a link to this video.
P A R T S L I S T S
S C E N A R I O 1 - STARTING WITH AN ENGINE THAT IS CARBURETED FROM THE FACTORY (SU, Weber, Solex, Dellorto, etc.) AND HAS A VACUUM ADVANCE DISTRIBUTOR.
- Bike carbs (with or without TPS)
- custom intake manifold for bike carbs
- gasket for intake manifold
- silicone couplers for carbs/manifold
- hose clamps for silicone couplers
- intake manifold tapped with an outlet for connection to vacuum advance distributor
- intake manifold tapped for brake booster connection (if any)
- vacuum hoses for connecting intake manifold to vacuum advance distributor
- longer trumpets for carbs (optional for better torque)
- air filter for carbs (optional, highly recommended)
- adapter plate for air filter (optional, highly recommended)
- throttle cable modification or new throttle cable end (ferrule) / custom throttle cable bracket (this is highly dependent on the car and carbs used).
S C E N A R I O 2 - STARTING WITH AN ENGINE THAT HAS ELECTRONIC FUEL INJECTION FROM THE FACTORY AND USING A MAP SENSOR FOR LOAD
- Bike carbs (with or without TPS)
- custom intake manifold for bike carbs
- gasket for intake manifold
- silicone couplers for carbs/manifold
- hose clamps for silicone couplers
- vacuum tank (vacuum balancing bar) for balancing vacuum for a stable MAP sensor signal
- intake manifold runners tapped (1 tap each runner) with four connections to a vacuum tank (vacuum balancing bar)
- hoses for connecting runners to vacuum tank and vacuum tank to MAP sensor
- intake manifold tapped for brake booster connection
- longer trumpets for carbs (optional for better torque)
- air filter for carbs (optional, highly recommended)
- adapter plate for air filter (optional, highly recommended)
- throttle cable modification or new throttle cable end (ferrule) / custom throttle cable bracket (this is highly dependent on the car and carbs used).
S C E N A R I O 3 - STARTING WITH AN ENGINE THAT HAS ELECTRONIC FUEL INJECTION FROM THE FACTORY AND RUNNING A STANDALONE IGNITION ECU
- Bike carbs (WITH TPS)
- custom intake manifold for bike carbs
- gasket for intake manifold
- silicone couplers for carbs/manifold
- hose clamps for silicone couplers
- intake manifold tapped for brake booster connection
- longer trumpets for carbs (optional for better torque)
- air filter for carbs (optional, highly recommended)
- adapter plate for air filter (optional, highly recommended)
- throttle cable modification or new throttle cable end (ferrule) / custom throttle cable bracket (this is highly dependent on the car and carbs used).
- Standalone ignition ECU (such as NODIZ pro or Megajolt or similar). You will additionally need an EDIS module if you run megajolt.
- Crankshaft sensor (needed only if your car does not come with this from the factory)
- Crankshaft sensor bracket (needed only if your car does not come with this from the factory)
- Trigger wheel / crankshaft pulley (needed only if your car does not come with this from the factory)
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