Driven Innovations NEW DI intake manifold.
#1
Driven Innovations NEW DI intake manifold.
guys check this bad boy out. DI ''Driven Innovations'' has stepped the bar up again. take a look at this. Check out the last pic. notice you can change runner lengths to better optimize different power bands. pretty wild.
Last edited by EvoDan2004; Feb 11, 2013 at 09:34 PM.
#7
What effect or what is the purpose of the taper to the intake manifold body (i.e. the deacreasing cross sectional area of the manifold from throttle body to point furthest away from throttle body) have on the air traveling inside the manifold during engine operation?
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#11
Reminds me of a turbo diffuser
#12
The purpose of that throttle body section is to distribute the air across the plenum evenly. There is a gap where air flows through into the plenum as the bulk of the air traverses down the cone. The cone tries to compress the air down and instead, it flows out the channel into the plenum so the pressure across the length of the channel remains fairly constant.
Audi (and others) used this design at some point in LeMans and other high level race series. The downfall to this approach is you have a minor pressure drop and that cone volume is still part of the plenum volume. This arrangement is typically used with ITBs so the added volume doesn't hurt you on response. With a turbo, the pressure loss is a relatively minor issue as ultimately, it has very little impact on how much air the turbo will pump out, there will just be slightly more pressure in the system.
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Audi (and others) used this design at some point in LeMans and other high level race series. The downfall to this approach is you have a minor pressure drop and that cone volume is still part of the plenum volume. This arrangement is typically used with ITBs so the added volume doesn't hurt you on response. With a turbo, the pressure loss is a relatively minor issue as ultimately, it has very little impact on how much air the turbo will pump out, there will just be slightly more pressure in the system.
In for results.
Last edited by 03whitegsr; Feb 12, 2013 at 08:31 AM.
#15