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Old August 6th 2019, 10:01
Simon Simon is offline
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Join Date: Feb 2007
Posts: 65
Quote:
Originally Posted by Wally View Post
Hey Simon,

Thanks! And very good to hear from you again! That has indeed been a looooong time!

I like the birals very much: in fact, I slao was a little worried about their thin-ish wall thickness, but they have withstand over 100hp per barrel without issue. So that is a true testiment to them imo.

The reason to fit those birals in the first place was because it was the ONLY stock 98mm cylinder on the market after I had burn a hole in my home-made cast all alu-nikasil cylinders...
This way I could re-use the JE pistons and could rebuild the engine relatively quickly.
OK, that's good to hear. I was/am considering some AA cylinders and pistons for the type4 engine (it's not running yet, had a lot of other stuff that distracted me, time flies apparently ). Not sure if I'll pick the birals over the plain iron ones though.
And obviously you have (or had ) some nice pistons already, the AA ones are probably significantly less nice, but I'm not planning on running a turbo at the moment, so should be fine I guess .

Quote:
Originally Posted by Wally View Post
After all, it seemed a little too quickly as I had accidently made a mistake (it happens ) and switched pistons, which meant the valve pockets didn;t line up and the intakes finally did hit the pistons. The had less then 1mm clearence without the valve pockets lining up, so at 9000RPM it lived, which was surprising in itself, even more without reserve as it turned out.

Long story short, rebuilding the engine again as it did received quite a bit of damage on valves (bend) and pistons/cylinder and I am now gonna use 102mm Deutz cylinders and new pistons.
Will also use a JPM cam, which Johannes 'agreed upon'

So, no more meets for this year unfortunately. I did reach my goal of 400hp at 1 bar, but the 10-second run still has to be done. Only then will I sleep again
Ohw, really sucks to hear that, sounds like a painful learning experience
On the other good to hear you've already got new plans! (obviously! ).
Haven't seen these Deutz cylinders before. Are they for a type4 or for some other engine and repurposed?

If you want to share I'd be interested to know why you're going with 102mm vs the 98mm you had (or anything else for that matter).
I still have a bunch of these decisions to make as well (2056, 2270, etc)

And 9000 RPM is quiet a bit, do you make that regularly?

Quote:
Originally Posted by Wally View Post
I spilled my beans, but what are you working on yourself atm?
cheers, Walter
Well, I have to move my car out of it's current home end of September and I'm trying to make it so that it can be driven out instead of towed or on an ambulance
Quiet a bit of work to do, especially since I'd like to wrap up some of the suspension changes I was working on (do or don't do M030 suspension front, uniball or GWD torsion bar covers in the rear, do or don't do 944 bilstein cup coilovers in the rear, etc).
I'll be using the stock engine for this, simply because I won't have enough time to finish that as well, but this sudden call to action was a good reminder that I should finish the type4 conversion
That will probably be a project for this winter.
Also I received a bunch of "vrij rijden" gift cards which I'd like to use
I'll create a topic here either this or next week to post some updates.

Last edited by Simon; August 11th 2019 at 07:17.
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