Dead space in manifold after external intercooler

[excess]

I was curious about what affect or better said the improvement we could get with the dead space where the original intercooler went in the intake manifold. I can only assume that all that open space might not be as efficient as just straight runners. Do you guys think the dead space has an affect on performance.

[Shibby1485]

oh yeaaaaaaaaaa... i LOVE this topic. light the pilots, get some ideas going. there's been talking about this for over a year.... i'd love a custom manifold with runners with no hallow cylinder space.

[UFO-RXT]

I've always wandered about this myself. Has anyone ever tried the '03 GTX SC intake on an RXT or RXP it didn't have the intercooler so it won't have this void.

[Pale Rider]

Short runners no plenum = high RPM power

Long runners plenum = low end torque

tuned runners with plenum = bottom end, midrange, and top end

everything is relative, cam timing, head work, volume, intake velocity, exhaust velocity, etc... PR...

* there is a dif between wet manifolds and dry manifolds engineering, you still have to keep the flow/pulses moving...something like that...

[Pale Rider]

I've always wandered about this myself. Has anyone ever tried the '03 GTX SC intake on an RXT or RXP it didn't have the intercooler so it won't have this void.

I believe the flame arrestor screen is in that space on the 2004 gtx`s.
are the cams the same for 03 and 04?...PR...

[Red Devil]

I believe the flame arrestor screen is in that space on the 2004 gtx`s.

Yes it is Andy, it looks like a long air filter. I cut the cap off my manifold and removed it prior to dropping my motor back in. Nils suggested that I do this.

[Gforce]

Now were talking I thought about this once I removed my stock IC. All that open space cant be giving optimal flow.

[beachboy66]

what about dual throttle bodys on each end of the manifold.

[Kinchyle]

I'm still wondering what that race guy had on his blockoff plate that had the wires going to it

[Shibby1485]

what about dual throttle bodys on each end of the manifold.

tripple carbs sounds better