SMIM Showdown! Lets figure this out once and for all!

[wheelhop]

Can you dumb down the results when you are done for common folk like me?
But that always introduces opinion. Just push a little further. You'll be happy with what you learn.

[JET]

Jet: Hopefully the conversations you had with my boss helped to explain this a little further to you. I wish I was well enough versed to have helped you myself, but im still learning. I guess we never stop though!

After talking with him it seems like we are in agreement with most things. I didn't get a response to my PM though, but I am sure he isn't on here often. I am curios to see what he says about the valve restriction helping to even out airflow. The biggest concern I have is someone getting this information and not understanding it correctly. It definitely can be useful for people that understand it though.

[Swifty1638]

it was explained to me well the other day. I also will be having you flow test my exhaust mani with this "heinz 51" theory ;)


Still, good info, and thanks again for running the test. glad to see people can be motivated enough to do something rather then sit around a DnB parking lot, and just talk about it for two hours ;)
-A. Swift

[old guy]

ANY information for anything can be mis-interpereted.What has been presented is in it's most basic form.You need to draw your own conclusions.
Heimholtz calculations can be a useful design tool,but they are irrelevant to this simple test as we have not identified a specific engine combination and are merely doing comparative analysis of parts at hand.
Old Guy

[iroc_g]

I had a conversation with Tim from Beyond Redline. It sounds like they want to host a dyno test with a few of these manifolds in the relatively near future. I believe he will be posting the information here in the near future.

I got pushit's next mani tested today. I will get the updates made to the site tonight. Still no pics of the last few yet. I might just take them with my iPhone and resize them to get it done. Its a hassle, but I can't find the charger for my camera anywhere.

[turbotalon1g]

Hmmm, dyno test would be awesome.

[Halon]

Cool, dyno numbers would be cool, but having a vendor of one of the manifolds in question worries me. The way some people are, I wouldn't be suprised if the numbers got skewed. It'd be nice if it were a more neutral party dyno testing them.

[Kracka]

If they are merely a host and were supervised by a neutral party I see no reason why Beyond Redine can't hold a fair dyno competition. I doubt any non-manufactuer would be willing to donate the time needed to swap so many different manifolds and dyno test them all.

[iroc_g]

The plan we have been discussing is to use their facility and dyno, but somebody's car that they do not know, or have any association with. The manifolds would be tested back to back.

Also, we plan to tune the car with each manifold. Obviously, if one manifold allows the engine to breathe better, it will require more fuel. As a rough plan, tune each car to a set AFR, and set timing as high as possible without knock.

[Halon]

I doubt any non-manufactuer would be willing to donate the time needed to swap so many different manifolds and dyno test them all.

Hasn't exactly that been done a few years back?

The plan we have been discussing is to use their facility and dyno, but somebody's car that they do not know, or have any association with. The manifolds would be tested back to back.

Also, we plan to tune the car with each manifold. Obviously, if one manifold allows the engine to breathe better, it will require more fuel. As a rough plan, tune each car to a set AFR, and set timing as high as possible without knock.

Where are these guys located?