5.0 M117 Engine - Page 2 - PeachParts Mercedes-Benz Forum

Blackstack · #16 01-12-2021, 11:38 PM

Quote:

Originally Posted by Frank Reiner

Try a little harder!

harhar....

Blackstack · #17 01-12-2021, 11:46 PM

Quote:

Originally Posted by Knownworldwide

Yep RWD had got it up there. 3 very different “Y” in one tri-Y or long tube header.

If I remember right, only 4 or 6 cylinder engines will have equal exhaust pulses where any 4 into 1 or Y configuration on a V-8 will not unless you cross one header tube from each side bank to bank. Did Mercedes ever make a flat plane V-8? I don't remember if this is an issue on a flat plane V-8 or not.

rwd4evr · #18 01-12-2021, 11:46 PM

Quote:

Originally Posted by Knownworldwide

Yep RWD had got it up there. 3 very different “Y” in one tri-Y or long tube header.

No. Long tube headers are just that. 4 long tubes in to a common collector. These are tri-y. Different animal. The Mercedes variety is actually two cast Ys and a tubular lower section also. Maybe you mean "tubular headers" not "long tube headers"?

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rwd4evr · #19 01-12-2021, 11:47 PM

Quote:

Originally Posted by Blackstack

If I remember right, only 4 or 6 cylinder engines will have equal exhaust pulses where any 4 into 1 or Y configuration on a V-8 will not unless you cross one header tube from each side bank to bank. Did Mercedes ever make a flat plane V-8? I don't remember if this is an issue on a flat plane V-8 or not.

Mercedes are not flat plane and you are correct.

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Tony H · #20 01-13-2021, 02:50 AM

Here you go. SBC but the same principle.

Knownworldwide · #21 01-13-2021, 03:11 AM

Sorry excuse me. Yes tubular headers. Which traditionally look like long tubes. Also none of these V8’s will have equal pulses unless they are flat plane. That’s why there are x pipes or h pipes.

Rev. Buzz · #22 01-22-2021, 02:22 AM

Gentlemen
I didn't mean to open a can of worms.
Perhaps it's a verb not a noun ?
"Try Y" headers ? A marketing phrase ?
Maybe something in the translation ?
��

Tony H · #23 01-26-2021, 05:44 PM

I think a Try-Y is just another name for a 4-2-1 header. The V8 108's/111's and early 107's have them but the DS is 1 piece with internal 4/2/1 passages due to the firing order and not 2 piece like the PS. Much better than the logs of later smog V8's.