Mythbuster: continuing project thread of my 1303 '75 - Page 104

LLVWGL · #**1546** January 21st 2020, 17:30

What is the Horsepower of those dyno runs?

Great Build!

Wally · #**1547** January 21st 2020, 17:43

Quote:

Originally Posted by LLVWGL

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 · #**1548** March 27th 2020, 08:46

Alright, back to rebuilding this engine

Mocking up for cam timing:

Crank assembly untouched since emoved and will go right back:

This was the damaged cylinderhead, now all repaired again:

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 · #**1549** March 27th 2020, 14:29

Yes, more eye candy. Are the cylinders deutz ?

**owdlvr** · #**1550** March 28th 2020, 04:03

So sweet!

Wally · #**1551** 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.

Wally · #**1552** April 15th 2020, 14:29

wouter1303 · #**1553** April 16th 2020, 02:27

That's nog going to work Wally

Or does it collect at the bottom and going to the front?

Wally · #**1554** April 16th 2020, 04:09

Quote:

Originally Posted by wouter1303

That's nog going to work Wally

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 · #**1555** April 17th 2020, 16:45

Front mount Oil cooler?

wouter1303 · #**1556** April 20th 2020, 11:32

Quote:

Originally Posted by Wally

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 · #**1557** April 24th 2020, 13:14

Of course!

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

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.