inlet mani flow rates? wanted

Gaz · 28-11-09, 01:15 AM

dunno if this is the right section to post this, but i want to know the flow rates and other related information(volume etc) of various inlet manifolds.

I was hoping someone might have a list of flow rates for comparison purposes.

I think 4v6 had some info in this area?

But I guess the two manifolds I really want to compare are the 10 valve turbo inlet manifold (was there only one design?) verses the naturally aspirated KV inlet manifold.

4v6 · 28-11-09, 10:13 AM

Hi Gaz, got your pm.

Ok, i presume youre interested in knowing how much the intake manifold flows at the throttle body?
Id need to do a blow through test on both types of intake and see what happened.

From some of the tests i did on Emjays carbed intake iirc, i found the turbo intake flowed not much better than the carbed manifold.

I do have a turbo intake i can test but i dont have a KV version.

Ill run a flow test on the turbo item shortly (discharging thru all the ports) so we'll get a total flow figure for the manifold.
Flow distribution will definitely be different for the KV item id say as it flows in from the other end.

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28-11-09, 10:13 AM	#2
4v6 Ex Member Classic Audi Club Member Join Date: Dec 2007 Posts: 5,565	Hi Gaz, got your pm. Ok, i presume youre interested in knowing how much the intake manifold flows at the throttle body? Id need to do a blow through test on both types of intake and see what happened. From some of the tests i did on Emjays carbed intake iirc, i found the turbo intake flowed not much better than the carbed manifold. I do have a turbo intake i can test but i dont have a KV version. Ill run a flow test on the turbo item shortly (discharging thru all the ports) so we'll get a total flow figure for the manifold. Flow distribution will definitely be different for the KV item id say as it flows in from the other end.