Cosworth Plenum FI/NA: Pics Inside!
Joined: May 2005
Posts: 4,654
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From: New Jersey
Originally Posted by Tonys-G
Looking at it looks like the runners are going to be extended wouldn't this add to low end torque or do I have that backwards and shorter one add to low end?
Longer runners give more TQ on the low end.
Originally Posted by Glex25
Well my train of thought is if the upper plenum was such a weak design and bottleneck.
Would adding something as this help the car get more HP with less stress on the motor?
Basically if you had a bottleneck and supposedly pushed the turbo's more to get the same power.
Wouldn't that strain the motor more to get the same power?
so if this frees up some bottleneck could you get the same HP with less stress since your not compensating on the bottom end?
Would adding something as this help the car get more HP with less stress on the motor?
Basically if you had a bottleneck and supposedly pushed the turbo's more to get the same power.
Wouldn't that strain the motor more to get the same power?
so if this frees up some bottleneck could you get the same HP with less stress since your not compensating on the bottom end?
But the fact is, inlet pressure is just a small fraction of combustion pressure...so reducing an inlet bottle neck wont make the engine any safer, on an FI application. Pressure and mass of airflow through the engine are two very different things. Now with higher boost, if that bottleneck causes the temp of the air to increase, then there will be some definate safety/efficiency advantages to running the plenum.
We wont really know all the practical answers, until we test them on a few cars.
But it is a pretty exciting development, with respect to inlet plenum strategy.....its been pretty stagnant there lately.
Are they going to re-announce it at SEMA again ? lol Sure taking thier time ! Why would they need a year after the first announcement ?
Last edited by booger; Oct 22, 2007 at 01:05 PM.
They have not shipped yet, so nobody has one in stock to sell. I spoke to Cosworth today, and they will be shipping right after SEMA, and they will have the production units on display at SEMA. Next week, I will make sure get some pics for everyone.
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