Jens Gustavsson skrev:här kommer en bild på en sävar special SUPER HX35 med singel entry #8 avgashus 54mm in och 55mm ut som är anpassad för montering på ett orginal grenrör och tanken är att man ska kunna smyga sig igenom besiktningen och ända ha luft för 450-500hk i en 240 eller 740/940 med smyg placerad fult portad och preppad 38mm wastegate under turbon

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Hi Jens.
Looks really nice.
How would an engine concept look like to maintain emission values, and go above 400bhp?
Especially how would the driveability be, if one would want this combination as daily driver.
I definately do see the advantage of using the stock manifold over a fabricated one for daily purposes, but wont the temperature and backpressure go very high when pursuing the +400 output.
I can see holset also has a #9 housing, and im pretty sure i have seen a #11 housing in hx35 series, but all are splits.
Can you supply bigger than #8 singlescroll if needed?
Lots of questions, but its always interesting to see what you comes up with.