CAI: Modshack Experimental.....>

john370z

Modshack, Do you think there can be merrit to Takeda's claim of 20 hp because of the size of their inlet tube and mas air sensor tube? It seems larger than Stillen and others.
thanks

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2009 370Z, Had Berk HFC and un-installed them cuz too noisy!, Stillen CBE, 10mm rear wheel spacer, K&N drop in filters. Blower to come...

Modshack

I'll do it eventually. I'm designing more for Under the curve driveability than I am for a few HP at RPM's I rarely spend time at.

Hard to say. It looks like they squeeze the pipes at the MAf mount area, but to what internal diameter I don't know. Necking down the pipe and then expanding it again does improve velocity (like a venturi) and could provide some leaning and more power depending on the ID. The placement of the MAF inside the tube will have an effect also as air flow through a tube is faster in the center than it is toward the outside. I'd tend to doubt that 20hp number though..

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Steal my car! (SOLD)...Now Porsche Cayman S
Oil Cooler DIY: Here!

t-ray

That's precisely what I'd be interested in seeing in graphical form; not too concerned with absolute numbers, just the baseline/revised graphs overlayed.