Cosworth Plenum FI/NA: Pics Inside!
#47
09-02-2007 | 11:04 PM
Joined: May 2005
Posts: 4,654
Likes: 75
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.
#48
09-03-2007 | 02:57 PM
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.
#52
10-22-2007 | 10:55 AM
#56
10-22-2007 | 10:03 PM
#58
10-23-2007 | 10:23 PM
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