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Firing Order

Started by fj1289, April 22, 2019, 08:25:34 PM

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FJ1200W

#15
January 06, 2023, 10:06:20 AM
Kawasaki H2 Supercharged is 1-2-4-3
While I do not see it happening, I'd like to own one of those someday.
Wouldn't the "normal" tri-Y design for this be 1-4 and 2-3 then into one, rather than the 1-2 3-4 into one that seem to be the norm?
Or 1-3 2-4 just to muddy this ancient old post?
Happy New Year!
Steve
Columbia, Missouri
USA

Pat Conlon

#16
January 06, 2023, 06:44:17 PM
Steve, yep you are correct....the best Tri Y header tube design for the gas scavenging on our FJ would be have the #1 tube merge into 4 then #2 merge into 3. However you can't do that and keep your primary tubes equal length.
Long time ago I saw a Tri Y FJ header with the #4 primary tube crossed over the #2/3 and merged with the #1 tube...it looked weird as hell.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

RPM - Robert

#17
January 07, 2023, 10:08:34 AM
Sure you could, Pat. A couple loopy loops here or there and your back to equal length :mail1:

FJmonkey

#18
January 07, 2023, 12:13:34 PM
I think the Blueman Group made a few versions as well.
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

FJ1200W

#19
January 09, 2023, 08:24:39 PM
I'm pretty sure this was my "gateway" exhaust.

Steve
Columbia, Missouri
USA
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