- #1

CaptainofIron

- 20

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Can anybody point me in the right direction for equations?

I pulled out my Marks handbook hoping it would help, but I couldn't find anything

I have been thinking of doing this as a gas dynamics problem and using area ratios to see if the 3" dual or the 2.5" dual pipes give me the best flow for my equipment.

Currently, I have long tube headers with a 1.75 inch primaries 3 inch collectors then going into a 2.5 inch y-pipe that has 3 inch cut-outs which then has regular catalytic converters then into a 3" Flowmaster catback. The valve is a 1.5in valve with an 8mm stem, and the lift at the valve is 0.5049in, and of course the Bore and Stroke of the engine is 4in by 3.48in respectively.

I want to redo the y-pipe because it was cheaply made (in college)

I eventually want to go to a true dual exhaust system.

If you could please help me out I would appreciate it

Here is a thread I posted on another forum

http://ltxtech.com/forums/showthread.php?12321-Exhaust-advice.-2.5-or-3