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  #1531  
Old May 26th 2019, 23:26
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Ok great the suction line from the tank is what size AN fittings also where do you run your lines.
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  #1532  
Old May 27th 2019, 03:30
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AN12 iirc, inside tunnel
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  #1533  
Old May 27th 2019, 18:34
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Doesn't that create moisture spots in the chassis that could cause rusting to appear.
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  #1534  
Old June 13th 2019, 13:07
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So close now Wally!!
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  #1535  
Old June 14th 2019, 07:44
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Indeed mate!
In fact, I had the car dyno’d already at 1.0 bar boost...😎
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  #1536  
Old June 14th 2019, 08:39
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First run 0,95-0,97 bar: 404 hp
last run 1,05-ish bar yielded 414 hp, so anyways it proved that you can make 400 hp on 1 bar on 100% gasoline bought at the pump :mrgreen:


cold air/engineparts (first run) spools better ;-)

https://www.youtube.com/watch?v=sVJcey1cX5M
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  #1537  
Old June 14th 2019, 15:35
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That’s absolutely awesome Walter, congrats on another myth busted....or goal achieved. I can’t even imagine what the feels like. How heavy is your car out of interest?
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  #1538  
Old June 15th 2019, 07:08
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It was weighed for inspection with the turbo engine and that was 960 kg about 12 years ago.
That was probably with half a tank and all seats in place.
Since then a few things are lighter, but added stuff too.
Hoping 930-950 kg on the street and 910-929 in dragrace mode..
But all educated guesses on my behalf ;-)
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  #1539  
Old June 15th 2019, 08:07
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Is that with the g50? About 100kg over a stock bug then! Not bad at all! And around 450hp per tonne.....not many cars can boast that!
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  #1540  
Old June 16th 2019, 17:16
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https://www.youtube.com/watch?v=07wo...&feature=share
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  #1541  
Old August 3rd 2019, 13:09
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Hi Walter,

Long time no see!
More than 400 horses, pretty impressive :O

How are you liking the AA birals so far/how are they holding up?
I was wondering why you picked the birals instead of the plain iron cylinders, I'd expect the biral ones to be a bit weaker.
And did you do any machining/honing to them or are they stock?

Cheers,
Simon
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  #1542  
Old August 4th 2019, 13:40
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Quote:
Originally Posted by $aint View Post
Hi Walter,

Long time no see!
More than 400 horses, pretty impressive :O

How are you liking the AA birals so far/how are they holding up?

I was wondering why you picked the birals instead of the plain iron cylinders, I'd expect the biral ones to be a bit weaker.
And did you do any machining/honing to them or are they stock?

Cheers,
Simon
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.
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

I spilled my beans, but what are you working on yourself atm?
cheers, Walter
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  #1543  
Old August 6th 2019, 10:01
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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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  #1544  
Old August 13th 2019, 04:35
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Quote:
Originally Posted by $aint View Post
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?
Deutz is a tractor manufactorer and is always a diesel engine...The older jugs are better to use, but harder to find and as the word seems to be out about these (old autocrossers used these 25 years ago already..), prices on ebay for used barrels are up. They used to be 'free' (tossed from old broken engines)

With Original head castings I would always keep as small a bore as possible as the heads warp originally already, even more so when fly-cut and even more so when 'openend up' for big bore. Everything you cut away is a weakening...

However, the Original 98mm bore idea had a long history from when friends made a set of custom made alu-'nikasil' cylinders and the were in 98mm, no choice there, but enough for a turbo engine

However again..., with the billet heads I now use, warping is not an issue anymore, but I also want to keep the case openings as small as possible as opening that also weakens the case (spigot). The edges where the cylinders rest are extremely small on engines that run the standard 103mm bore cylinders. I don't like that for a (really) big hp engine.

As one doesn't always have free choice and everything is a bit of a comprimise, I got a very good 'deal' on the cylinders which were 102mm to begin with, so I'll have the bottom turned down a little to minimize wall (2mm) and keep case strength up a bit.
I'd rather had 100mm and keep that 1mm more in the case, but sometimes you also go with what you have and its probably not really that much of an issue and the extra cc's give a bit more bottom torque (spool), so that nice as well.

Long story, but considerations for decisions are never simple nor single
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