Building tuned inletmanifold! (slow progress)
but with patience it´s possible.
the runners are aluminium.
it welds 'fine', but cracks really easily when cooling off.
The hard work is the cracking problem.
But if you get a weld with no cracks it stays together when it has cooled off.
It doesn´t get pretty at all thou *lol*
But, the rest of the work now is with plasticmaterials.
The very best is to own a big *** 3d printer and print out a complete manifold
The Best of Mercedes & AMG
It might be easier than everyone thinks to make a new upper manifold for m113 NA engines.
One can use the lower part as is and just model a new one on top.
I got a friend that´s really competent in designing in CAD.
Attached picture is some of his work.
i´ll ask him if he want to design an upper part that will ease the process of 3dprinting.
However, i will still test my homemade first.
If no gains, there are no use of going further.
And, night before today i was out testing car at about 00:30 , temprature was 14 celsius.(57 fahrenheit)
and the gains were really noticable, it increased topspeed on the quarter to 118.5mph
this makes me open an eye to restrict heat under the hood.
I´ll wrap with heat deflector and coat as much as i can the coming weekend.
I want that performanceincrease at daytime too

Well,, a part of it anyway
And does there appear to be any way(and I know this is extreme) if one created a custom manifold, to flip it around and have a front mounted throttlebody? Not sure what all is mounted to the front/back of the manifold.
The engine has the camtransmission exactly where it´s best to place throttlebody.
And for tuninglength, let´s say it like this: it´s NOT tuned for a sporty engine as std.
More tuned to work ok in heavy application, like trailerdragging in an ML500.
But my experiance also says to me that with a manifold that doesn´t restrict the engine doesn´t take away any power, like the std manifold does.
It adds all over the curve with an extra gain where it is tuned.
Rgds
Next weekend i will try to give it a couple of hours again.
I´ve been busy refurbishing my new wheels.
Got rid of those 20" rims as the performance was really really better with smaller overall diam.(tested std rims)
This is from today, left them at local tireshop to get them mounted:
Last edited by swedepat; Aug 31, 2015 at 05:49 PM.
Just did an hour of work, will spend a couple more today.
But i feel more and more i should go live and make a 3d model and go live with 3d printing instead.
Slowly getting there.
A lot of cleaning up to do.
Then i´m waiting for my flange to arrive.
A friend of mine is getting it watercut for me.
In picture, almost done with boxing it in completely.
Last edited by swedepat; Sep 12, 2015 at 12:14 PM.
slowly getting there.
grinding the flange by 'hand'.
Only airtool for headporting as aid.
takes time, and doesnt become eyecandy.
But!
i don´t care.
this is an experiment, if it becomes an success i will go on developing an 3d model and then decide if print it out or cast it in alumium.
Let me know.
Best topspeed in 1/8 is 93.85Mph as is, as we speak.
So this weekend if everything is coming together i will test the manifold.
If more power i should get more trapspeed, only logic.
I´m excited about the results.



