Header Performance ?

[towboattrash34]

I know this is a gasser, but with everyone trying to sell you non restrictive manifold's and stuff is it really needed ?

[YOUTUBE]azPKIjxmmdU[/YOUTUBE]

 

[Yngdmax92]

i watched that the other day, i work on a lot of sled. I always get dings in the snowmobiles pipes and always worry about power loss. lol not no more even though it is a 2 stroke and they utilize the pipes alot more then a 4 stroke but still.

 

[Yngdmax92]

when i did a down pipe and a lml manifold on my lb7, i didnt really notice a difference on power or egts. Maybe a little bit but there are way to many variables. sound was about the only thing i noticed that changed quite a bit

 

[NRA223]

My experience is all the little things add up. I noticed a big difference when i added manifolds up pipes y bridge and boost tubes at the same time. And then later when i did the sportsman cp3 I noticed a big difference in responsiveness . These were all things that on paper looked like marginal differences and cost quite a bit but I'm glad I did all of them.

 

[CaptPhil]

That was pretty wild. I would have expected at least some appreciable power loss.

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[gmduramax]

The headers were probably larger in diameter than they should have been.

 

[Mike L.]

The headers were probably larger in diameter than they should have been.

^^^^^^^

 

[PureHybrid]

Those Roadkill guys crack me up LOL

That engine was waaaaay over carbed and under cammed. I bet on an all out engine you'd see 10-15hp

I still like watching their show, they try some odd stuff.

 

[PACougar]

Those Roadkill guys crack me up LOL

That engine was waaaaay over carbed and under cammed. I bet on an all out engine you'd see 10-15hp

I still like watching their show, they try some odd stuff.

I thought the same thing, two 750's on a 560 crank horsepower small block. Lol

 

[PureHybrid]

I thought the same thing, two 750's on a 560 crank horsepower small block. Lol

I'd bet one 750 would make within 5hp.

10.2:1 comp and [email protected]" is a nice street rod setup, not worthy of a tunnel ram. Not that tunnel rams are that great in the first place :spit:

 

[JoshH]

There was a previous episode where they tested a couple of different carb and manifold setups. There's also another one where they compare carb and efi.

 

[towboattrash34]

I know on my Harley a good 2 into 1 pipe/muffler makes a big diff, but I also had a 650lift cam

 

[PureHybrid]

More than likely its because it was a 2-1, not just being bigger or less restrictive setup. 2-1 almost always brings tq in sooner, almost nobody runs a true dual setup anymore.