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Megane Coach F7R Turbo conversion

Thank you Big Steve - Raider ! In fact, I made everything in a small steel garage .. in the backyard :grin.gif:

I took the wire which I bent around the Turbo and bolted it to an engine without turbo to evaluate the fitment with Turbo.
The right side was good but one the left side i could see that the space for the downpipe will be very tight.

Platzverharltnisse.webp

Downpipe: In the past i always had problems with the downpipe being to close to other parts of the car.
I made a simulation and found out that up to approx. 240kW a 63,5mm diameter downpipe is sufficient so i decided to go with this size.
I decided to take the stock n/a exhaust manifold and build a fixture with guides made out of welding rods to indicate the out most shapes.
This way I made sure that the downpipe will be centred and I could use the stock catalytic converter. (I changed it later to metal one)

Downpipe_Vorrichtung.jpg

I left 2 weld joints unwelded.. readjusted the pipe in the car and welded the 2 remaining joints.
Fitment was perfect this way.

Happy_downpipe.jpg

Better welding joints as promised.

Happy_Schweißnaht.jpg
 
Amazing work you do!
I think the coupé is such an underrated car, good looking and great handling straight out af the box. I've had 4 or 5 of Them, and wouldn't mind another.
 
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