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-   -   Mythbuster: continuing project thread of my 1303 '75 (https://www.germanlook.net/forums/showthread.php?t=9953)

LLVWGL January 21st 2020 17:30

What is the Horsepower of those dyno runs?

Great Build!

Wally January 21st 2020 17:43

Quote:

Originally Posted by LLVWGL (Post 91666)
What is the Horsepower of those dyno runs?

Great Build!

404 and 414hp ;)

Probably would have been more if the ignition wasn't loosing power up top from a bad ground/earthing...

Wally March 27th 2020 08:46

Alright, back to rebuilding this engine :D

Mocking up for cam timing:
https://live.staticflickr.com/65535/...8fa09c50_b.jpg

Crank assembly untouched since emoved and will go right back:
https://live.staticflickr.com/65535/...3ee08b98_b.jpg

This was the damaged cylinderhead, now all repaired again:
https://live.staticflickr.com/65535/...c802d41e_b.jpg

Because of the all steel cylinders and the general high engine bay temps I had with the headers on top, I am also upgrading the oil cooler to a bigger (higher) one and have ordered some Naca ducts for the quarter windows, so cool air can enter from another point in the engine bay.
Work to do!

effvee March 27th 2020 14:29

Yes, more eye candy. Are the cylinders deutz ?

owdlvr March 28th 2020 04:03

So sweet!

Wally April 13th 2020 03:28

Yes, Deutz 102mm cylinders this time around, so I paid a little more attention to cooling as its not Biral material: bigger oil cooler and side scoops to ventilate the engine bay better when the turbo is back in there (after I do my N/A runs with it).

So, plan is to dyno it N/A first to get some baseline again and since I need to make my exhaust myself anyways, I wanted to incorporate some anti-reversion chambers in there at the same time.

https://live.staticflickr.com/65535/...44b05209_b.jpg

https://live.staticflickr.com/65535/...1fbeaea6_b.jpg

https://live.staticflickr.com/65535/...b062a5eb_b.jpg

Wally April 15th 2020 14:29

https://live.staticflickr.com/65535/...fe94b8e1_b.jpg

wouter1303 April 16th 2020 02:27

That's nog going to work Wally :D
Or does it collect at the bottom and going to the front?

Wally April 16th 2020 04:09

Quote:

Originally Posted by wouter1303 (Post 92058)
That's nog going to work Wally :D
Or does it collect at the bottom and going to the front?

Its meant to become (work in progress) a 4-2-1 header system with anti-reversion chambers build-in. Its also partially stepped :)
And it will be possible to retain my twin spark operation (the former of-the-shelf type 1 header I used made it impossible to use the bottom plugs as thats where the 1 and 3 headers ran...), so I am hoping for excellent results, even though its a low compression engine (buid for boost).

LLVWGL April 17th 2020 16:45

Front mount Oil cooler?

wouter1303 April 20th 2020 11:32

Quote:

Originally Posted by Wally (Post 92059)
Its meant to become (work in progress) a 4-2-1 header system with anti-reversion chambers build-in. Its also partially stepped :)
And it will be possible to retain my twin spark operation (the former of-the-shelf type 1 header I used made it impossible to use the bottom plugs as thats where the 1 and 3 headers ran...), so I am hoping for excellent results, even though its a low compression engine (buid for boost).

I was just kidding, i very much like the things you do with your car.
And I am curious how it al will become once it is done, keep us posted! with a lot of pics of course

Wally April 24th 2020 13:14

Of course!

Today I had the two-yearly tech inspection for road legality. Passed again :D

https://live.staticflickr.com/65535/...171ff913_b.jpg

Had some small issue with a new aftermarket valve cover I wanted to try, but it leaked a lot! The welded in slots to keep the gasket in its place was just a tad too high and hit the head sealing ege, so the gasket didn't touch and therefore leaked. At home grinded just 1mm away from the tab and it sealed ok...

Exhaust isn;t that noisy, but I ordered too big one, so it hangs a little too low. Its just temporary, so I don;t mind for now.

https://live.staticflickr.com/65535/...38f26a6c_b.jpg

Wally April 24th 2020 13:15

Quote:

Originally Posted by LLVWGL (Post 92060)
Front mount Oil cooler?

Yes, big one, fits just behind front apron.

Here is the old (small, old Mercedes transmission cooler) one and the current one:
https://live.staticflickr.com/65535/...1fbeaea6_b.jpg

effvee April 24th 2020 16:23

Hello, question, how do you feel about twin scroll turbos?

Wally April 24th 2020 17:06

Quote:

Originally Posted by effvee (Post 92068)
Hello, question, how do you feel about twin scroll turbos?

Very positively as I have run them on the last 3 engines 😉


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