Dizzy drive & vacuum take off
Turbo Mini Forums

Hi, Sorry if this seems obvious to you all, I'm a bit of a novice to Megajolt. And wanted to query a couple of things related to Megajolt install, which I can't find from first doing searches on this site.

First question is. Does there not need to be a mini one way valve in the hose for MAP and boost and Vacuum use ?. I ask as when you run a vacuum take off for a servo, there is one. I can see its not been mentioned on Turbo-minis, so pretty sure the answer is no. But curious as to the reason. Also what is the recommended pipe bore size to use for these take off uses.

Second question is. Do i need to remove the dizzy drive spindle before balnking the hole ?. Just thinking that it risks breaking loose and finding its way in-to the internal engine parts.

Thanks in advance, and excuse the ignorance

You don't need a one way valve. the megajolt needs to sense both vacuum and positive manifold pressure. Around 4mm hose should be fine.

If you don't remove the dizzy drive you will have a large rotating piece of metal bouncing round inside your engine/box. Not good.

I forgot to remove the dizzy drive on my first turbo build! Its not a nice experiance i can tell you!

Never forget to remove the dizzy drive! lesson num 1!

I've just finished installing the megajolt, had a few issues (like not removing the dizzy drive) but its working now.

If it's of any use to you, here's my build thread:
http://www.turbominis.co.uk/forums/index.php?p=vt&tid=469104

And my call for help after i heard what i later found out to be the dizzy drive rattling around in the engine...:
http://www.turbominis.co.uk/forums/index.php?p=vt&tid=470105

http://www.turbominis.co.uk/forums/index.p...tid=469104&fr=0