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Old 03-25-2017, 10:14 PM   #32
Goertz
 
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Drives: 2016 1SS Auto
Join Date: Mar 2016
Location: Houston
Posts: 530
Making a 4" downpipe fit between a 3" window

Using custom oval mandrel bends, I only dabbled at it for about a hour today but tomorrow I'll be working on it all day tomorrow. Going to work on the passenger side manifold and connection pipe also.

Going to make a oval pie cut bend to snake between the manifold and the steering shaft. Either that or I have a 2.5" mandrel 90 I'll cut in half and then roll out some flat pieces to weld on the inside and outside of the bend so that it isn't a piecut bend...

Should be able to finish all the exhaust components this week but also have to build a custom header for a midget racer also this week.


Also need to move the wastegate down lower. That is where I had it for the rear mount kit but now it needs to drop lower so it clears the hood. I'll continue to use the 38mm though as it has done amazing for us at holding boost. Even with that single wastegate on one single scroll we can hold 4lbs of boost spring pressure all day long, and use the boost controller to go past 2x spring pressure (have gone as high as 13lbs, can likely go higher just haven't done it yet)
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