Toyota MR2 Kinner radial (R55 Airplane engine) with decent idle and startup

the startup is now drama free and the idle is smoke free. obviously I've got a bunch of tuning left to do across the rest of the map.

Category:

Autos & Vehicles

Tags:

• MVI
• 0219

[Frankenstein00000]

@Frankenstein00000 period com missing from the e-mail address

[Frankenstein00000]

@diyefi sure, the crank sensor is a 40-1 and is directly on the crank. the "cam sensor" is also on the crank, the alternator is driven by a chain that has twice as many links as the crank sprocket and one of the links has a tab that sticks out. i can send you a picture if you e-mail me: Marc at frankensteinmotorworks

[diyefi]

@Frankenstein00000 OK! What about the pattern that sensor reads? The wheel configuration? Whatever you want to call it :-) Tell me more about that, please.

[Frankenstein00000]

@diyefi the reason i selected that sensor is becuase of it's extreme low RPM stability. as you can see, the engine starts with a cranking speed of about 20-25rpm. i did have to lie about the advance position to get it to have a start spark position after top dead center.

[Frankenstein00000]

@diyefi the sensor is a kia cam position sensor, i forget exactly which. it's a hall effect sensor.

[diyefi]

@Frankenstein00000 What type of crank angle sensor does it use? Is there a thread somewhere where I can read more about it?

[Frankenstein00000]

@Frankenstein00000 as soon as the computer sees two rotations it fires the next cylinder possible and it almost always catches on the first shot.

[Frankenstein00000]

@longwing110 In that video i'm using the stock 1993 subaru starter driving through the reduction gear. the start RPM is 20-25 which has proven to be a problem over and over.

I'm working on adapting a cummins turbodiesel starter on it. the start RPM is now about 450RPM. i haven't fired the motor with that new setup yet, but it should start at the flick of the switch now.

the long delay between the start of the rotation and the first fire is the computer waiting for synchronization.

[longwing110]

what starter motor? an old aircraft one, or something newer adapted to work?

[davetileguy]

Why?