TFS EFI Manifolds for the intake adapter

[Joe-JDC]

Just got back into town, and was reading through the replys, and I wondered if anyone read that the manifold flowed 420 cfm as cast.  When I get some more time available, I will flow the complete assembly, but when I did these type intakes for the SBF crowd, they always picked up flow with just cartridge roll clean up, and I always match each port to the highest flowing port.  I have cut plenums and ported them completely if necessary, and welded them up and blended the welds so that they look stock.  The airlfow is not going to be a hinderance to any FE head available, or cubic inch.  These manifolds were best suited for blown applications where strokers and lots of boost were used.  Joe-JDC

[My427stang]

Joe, I don't thing anyone questioned airflow, the question was based on water hammer theory and where the runner LENGTH was tuned for additional benefit.

Old Ramchargers stuff, has nothing to do with peak flow numbers, it's all about reflection of the wave of the closing intake valve and how it can be used for good

I actually like the idea the more I think about it, it gives the volume it needs for the peaks, but should recover well at the shift, even in a naturally aspirated version. 

The blower of course is even better and why I was looking so close at it.  At some point I am doing mine, and it makes a nice turn toward the passenger side to find a centrifugal huffer

[Joe-JDC]

What I found was that anytime I was able to get the runners over 13", and the upper plenum large enough so that there was no loss of airflow through the lower, then it was like a hit of nitrous at the torque peak up to the limit of the valve train or computer chip limit.  If the plenum is large enough, the long runners create a ram affect that is amazing to feel--and no refill of a bottle necessary.  Joe-JDC

[My427stang]

Sounds good to me!

[ROBSREDFORD]

Joe Did you ever run an engine with this 351c tfs intake on an FE?

[Joe-JDC]

Yes, needs at least a 90-105 mm throttle body.  The larger the better.  Will have to weld the throttle body area and open it up to size.  Not large enough at housing as cast.  Joe-JDC

[jayb]

The test results are in the thread below, on page 11 of the thread - Jay

http://fepower.net/simplemachinesforum/index.php?topic=4760.0