Author Topic: Prowler - Corvair (under construction (Read 6029 times)

pepsi81 · **Reply #120 on:** February 03, 2021, 01:54:30 AM

Joh,
Looks fab.Well thoughht out induction system.
Out of interest,what about crankcanse breathing 🤷🏻‍♂️😂
Paul

JonFuller · **Reply #121 on:** February 03, 2021, 08:12:19 AM

Thanks.

Breather vents into the right hand filter base, just waiting on the formed silicon hose to complete it, so will post a pic when it's done.
It basically enters the filter base plate from below, much the same as the IAT sensor does on the left side. So it's a vent, rather than a proper PCV style.

When the motor comes apart for the rebuild (pretty soon) and I have easy access to work on the heads, I might add a port into the right inlet manifold and fit a PCV valve.

Jaysons Dad · **Reply #122 on:** February 03, 2021, 10:00:24 AM

Quote from: JonFuller on February 03, 2021, 08:12:19 AM

Thanks.

Breather vents into the right hand filter base, just waiting on the formed silicon hose to complete it, so will post a pic when it's done.
It basically enters the filter base plate from below, much the same as the AIT sensor does on the left side. So it's a vent, rather than a proper PCV style.

When the motor comes apart for the rebuild (pretty soon) and I have easy access to work on the heads, I might add a port into the right inlet manifold and fit a PCV valve.

You are a very clever man Jon 😀👍

JonFuller · **Reply #123 on:** February 03, 2021, 11:18:50 AM

Quote from: Jaysons Dad on February 03, 2021, 10:00:24 AM

You are a very clever man Jon 😀👍

Hardly.

As with most things, we all stand on the shoulders of giants, nicking their knowledge and recycling it. I've just read up on it and taken advice from those who've done it all before.

JonFuller · **Reply #124 on:** February 03, 2021, 08:53:35 PM

Bolting on & hooking up....

Waiting on a few bits n bobs, but getting close to trying it out

Throttle is a bit heavier than I'd hoped, as it's obviously got two lots of return springs, and it's quite short travel. Could do with larger quadrants really

JonFuller · **Reply #125 on:** February 04, 2021, 01:52:09 PM

Quote from: pepsi81 on February 03, 2021, 01:54:30 AM

what about crankcanse breathing 🤷🏻‍♂️😂
Paul

Like this....

JonFuller · **Reply #126 on:** February 05, 2021, 05:34:08 PM

Quote from: JonFuller on February 03, 2021, 08:53:35 PM

Throttle is a bit heavier than I'd hoped, as it's obviously got two lots of return springs, and it's quite short travel. Could do with larger quadrants really

Having decided the throttle was too heavy and a bit too short travel, I knew if I didn’t fix it now, it would get left :-/

So....

Turned up a new quadrant. Now 60mm instead of 30mm, cable travel up from 25mm to 50mm, as per the holley that was on it before.
Haven’t fitted it yet, but sure it’ll be way better

snoopy · **Reply #127 on:** February 05, 2021, 07:07:39 PM

facilities like lathes and machines are money well spent when you need some specials.

JonFuller · **Reply #128 on:** February 08, 2021, 06:20:16 PM

Getting very close now. Gotta have the bonnet off to get the return line into the tank, prime the system and give it a wirl! Maybe tomorrow.

New larger throttle quadrant all fitted and working nicely.
Silicone breather all stuck together and fitted (its made of 3 x 90 degree pre formed bends, super glued onto 16mm stainless joining tubes).

JonFuller · **Reply #129 on:** February 21, 2021, 08:38:45 PM

Changed my mind on the trigger setup for the ecu, from using the dizzy internals, to fitting a crank mounted trigger wheel.

So made up a few bits to fit the Hall sensor and trigger wheel onto the vair....

JonFuller · **Reply #130 on:** February 21, 2021, 08:40:45 PM

Then stripped the guts out of the dizzy, and locked off the mechanical advance/retard mechanism. It will now just distribute the HT side of things, with the ECU controlling all spark management based on rpm, manifold absolute pressure (map) etc.

JonFuller · **Reply #131 on:** February 21, 2021, 08:56:14 PM

Had it's first run, plenty of messing around required yet.....

....but at least it runs.

Still learning the ropes with this DIY EFI nonsense.

https://www.youtube.com/watch?v=zjmyL3e53a8

https://www.youtube.com/watch?v=gKnE5TwpxpI

Onwards & sideways :-/

snoopy · **Reply #132 on:** February 21, 2021, 09:13:27 PM

that is some nice work and good to see it works.

Doon L001 · **Reply #133 on:** February 21, 2021, 09:28:11 PM

Jon
Great work there
Just a thought, could you put something into some of your pictures to give an idea of scale, some are obvious but s lot don't make a lot of sense until the big reveal when they are fitted. A coin maybe
Cheers
Dave

JonFuller · **Reply #134 on:** February 23, 2021, 09:49:17 PM

Getting better,,,slowly.

A lot of peeing about atm. but sure it'll be worth it.

https://www.youtube.com/watch?v=eggYLfZC1xk

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February 28, 2021, 07:16:05 PM

Prowler - Corvair (under construction