BennVenn's VW Delco Conversion

[BennVenn]

You want to let the module do the signal filtering from a VR sensor so you'll want 2 camira modules. Logically OR their output to trigger the '808.

Then as you suggest have an RS flipflop gate the pulse to the correct coil pack. This will only work when the ecu commands a spark before the trigger pulse. E.g. spark advance > ref pulse (10deg)

[BennVenn]

I might use that exact system on the bug. No need for a cam phase sensor. And no need for advance less than 10deg. If this works for you too we can talk about physical size constraints etc...

[Jayme]

so each camira module would be commanding its own coil? this way crank advance still works as per the original motorbike setup..

so you OR both ref pulse outputs together to go the the ecu, then flip flop the EST output from the ecu to alternate between each module?

[BennVenn]

Internet dropped out and lost what I just wrote. You have it pegged, there are some conditions where it will loose sync - mainly if you request less than 10deg advance but that can also be overcome though a good selection of edge triggered logic.

I have a VW Jetta coil pack, 4 cylinder module, 2 coils with inbuilt coil drivers so it can run directly from the '808's trigger ($50 new of eBay). You can do the same with your original coils and use the camira module to drive them (unless they're CDI coils which are different again - they don't use dwell like common coils, they switch 300v into the primary and don't rely on back EMF to generate the spark. The have very little iron in them and will cook if you try to drive them with any kind of dwell.

[BennVenn]

With the Supercharger on it's way, I've decided to move the fuel system back into the front of the car with the tank. It'll keep the pump noise down and hopefully raise less attention when it's time for a roadworthy.

I'll be testing out the returnless setup too. With the surge tank up front and lower than the fuel tank there should be no issue with vapor in the lines.

How has everyone approached the engineering side of things when it comes to adding forced induction to an otherwise stock car? Did you have any issues getting your ride complianced/engineered?

[vlad01]

Just emission testing I think. Im sure it will pass with flying colours being VW lol.

but seriously it should pass easy as because you have to exceed the standard for a stock engine and with EFI it will blow the 60s vw standard out of the water 100 fold.

[vlad01]

oh and brakes too, needs to be able to match the power output. That all depends on the engineers call of judgment.

[BennVenn]

Brakes could be an issue, would the standard take into consideration what was acceptable in the 60's? No vac booster makes for a heavy car as it is. Might need to look into the disc conversion kit. Not sure where I could put a booster...

[vlad01]

Brakes could be an issue, would the standard take into consideration what was acceptable in the 60's? No vac booster makes for a heavy car as it is. Might need to look into the disc conversion kit. Not sure where I could put a booster...

don't need a booster, just good disk brakes. I have rear and front conversion for type 3 consisting of R31 rear brakes and hybrid Ford AU/Holden VP-VS front brakes. Never used and still in box. But only the rear would fit the bug, front are totally different.

[BennVenn]

There is a front kit on justkampers for $700 but says won't fit a 1303, vollks.com.au had a kit - they're happy to take your money but don't respond to emails when your new distributor doesn't work (vac advance had a hole in it). Having rear only discs sounds like an accident waiting to happen... I'll keep looking.

What happend to your T3?