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-   -   Engine air flow??? (https://www.rx7club.com/3rd-generation-specific-1993-2002-16/engine-air-flow-246691/)

onenrg1 11-29-03 12:55 PM

Engine air flow???
 
Can anyone answer what the air flow is through a 13b? That would be a 93-95 13b. I wanted to get that info in order to understand more in depth of how to match a turbo to the engine. I already know of good turbos that have been known to work but I just wanted to get a better understanding of the relation of the compressor maps. Thanks.

FormerPorscheGuy 11-29-03 10:25 PM

Air flow all depends on the port size, turbo, exhaust, and air density.

Compression is a totally different story.

onenrg1 11-30-03 09:20 AM

What I am looking for is the maximum air flow through a stock port engine. This would be independent of the turbo. I am assuming that when a porting of a motor is done that it can be flow tested. Since I realize that it is different depending on the porting I am just looking for stock numbers. For example, since I am more familiar with piston engines, when you port a head it can be tested on a flow bench in order to get its maximum flow through a head. Of course many factors may come into consideration but I am looking for a base number that I may work with. Thanks.

Howard Coleman 11-30-03 09:55 AM

it is generally accepted that the 13b requires 1.92 cfm to make 1 hp at the rear wheels.
howard coleman


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