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so whats better and why Tri-y headers or 4 into 1? and is there much power diferance between the 2? |
Havent you learnt anything from that guy that gives sermons at church?...Captain whats his name. |
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Tri-y better for low down torque, street use. 4 into 1 better at higher revs, track and strip use.
Cheers,
Pete.
Old Holdens never die, they just go faster. |
Cheers,
Pete.
Old Holdens never die, they just go faster. |
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Gday,there was a very interesting(controvesial)artical in october 08 STREET MACHINE page 120 by Darren Di-Filippo(DiFilippo performance exhausts),on this very subject.
Its a good read,maybe its on their website.
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As scrote said its worth the read and I guess some more reasurch See The Yetis Chev build at http://www.ozrodders.com...rd/viewtopic.php?t=17919 |
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If you size a 4 into 1 pipe properly, it will **** on a try y every day of the week, even on a mild engine.
The reason "the try is better" myth perpetuates is because of the shelf pipes are a "one size fits all" approach.
If you know a decent welder
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If you size a 4 into 1 pipe properly, it will **** on a try y every day of the week, even on a mild engine.
Ill disagree on that point Phil.
You summed it up when you say about sizing pipes properly. TriYs are the same.
A lot of triYs are made just
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Google; http://www.maxracesoftware.com/pipemax36xp2.htmtakes about 20secs to find.... ; ) ___________________ Why are you reading this, you should be looking up there^^ Joetech Tonner - coming soon! |
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You got me there Sandman, but in my defense were not talking about high end race engines here. I have try y on my own car thats 400+ hp, but only because the "off the shelf" 4 into 1 is way too big for my engine (being 1 3/4 primary)
I will find out wh
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Ive been into Jap bikes for quiet a few years and the Japs dont mess around when it comes to getting big performance out of little engines,anyhow Ive noticed that they are still using what appears to be a tri-y system on their high end engines(4 into 2 in
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tex is always right, the japs dont stuff about!
well said tex and i agree
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Thanks for the Pipemax link. Ill get one of those programs.
I wasnt being picky Phil. I just trying to make the point that a "properly" designed and built set of triYs can work very well.
I guess the reason that triYs have the reputation of making mor
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Sandman, no offense taken, its all good!
(id actually like to see more "technical" stuff bandied about here anyway!)
I guess in the context of this thread, for an off the shelf pipe, the advice given prior is good, for a serious race engine, or bik
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quote:
Originally posted by Phill
... theres a hell of a lot more to it than simple "one is better than the other"
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Yeh, I agree, I like reading the tech stuff and things people have found.
As for LSx engines, I cant answer that. Maybe someone on the Aust LS1 forum can. Theres a lot of really good info on there.
My LS1 Cdore wagon has TriYs and Im pretty happy wi
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Maybe with LSx engines it is like I was saying earlier about TriYs being made with small pipe and just cheap and easy to fit??
Thats probably why they would OK on my wagon. Its auto, heavy car, tall gears, doesnt rev past 6100. So small pipe triYs is may
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Ive been talking to Greg at Sureflo mufflers and Steve at Oztrack tuning about a new system and then a tune on my Cross8. Greg recommends HPC coated short 4 into 1s, twin 2.5" pipes through high flow cats and then into a single 3.5" pipe. Apparantly these |
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If we all had the same (good) taste, who would buy all the Fords? |
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