After upgrading to the DVDT Fab Intake manifold and the Q45 TB, I was tired of idle issues, so I decided to take a stab at rigging up a universal ISC motor to put some drivability back into the car.














Obviously the ports go to a before / after throttle plate bung of some kind so that the motor can allow / not allow air to bypass the throttle.

Thing worked wonders.

Essentially, I took the underside (ISC / FIAV) portion of the Tb off, sawed off the FIAV, welded the now gaping channels closed, and milled out a plate and threaded some fittings in place. Pretty easy. Only took an afternoon in a machine shop.

Interesting. So all you have to do is tap into the intercooler piping and intake for the inlet/outlet. Where are you mounting the ISC?

Mounted it with some zip ties to some misc firewall parts.

yes, just need to run some hoses to a pre / post TB source.

What iscmotor did you use? Is there a isc motor that we could use that isn't so costly?

That's just an OEM isc motor....

Thanks for posting this.

Do you have the FIAV hooked up on the Q45?

No, all ports unplugged / blocked on the q45 TB

Iam fighting w terrible idle .. so this is great solution Sir Just don´t wanna take out my IM and make hole/thread to it...Hate this job
Where on IM you tap output?? Can you post pic of your engine bay..

Venca

MarsaGSX said:

Iam fighting w terrible idle .. so this is great solution Sir Just don´t wanna take out my IM and make hole/thread to it...Hate this job
Where on IM you tap output?? Can you post pic of your engine bay..

Venca

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I had a DVDT fab intake manifold, and I welded a 1/2 NPT bung to the underside of it for the receiving of the bypassing air.

i have seen this car in person, gorgeous 2g!

91mits said:

i have seen this car in person, gorgeous 2g!

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She's dead

Boosted98gsx said:

She's dead

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How?

bradselph said:

How?

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Cracked crank

Boosted98gsx said:

Cracked crank

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nice