Special race edition Vario Ram?

[andy s]

Hey All:

I have been led to believe that there are a few special Racing edition VarioRam intakes. As the story goes, Porsche made some intakes that look just like a stock Vario, but the entire system is larger in inside Diameter.

Now I happen to have 3 Vario Ram intakes. I have done a search here on the part numbers but nothing comes up.

But, Ironically one of the sets of runners is actually 3.5mm wider in ID from the other two. It also happens to be significantly darker in color.

So can anyone shed some light on this?

The Varioram main bodies have part numbers of:

993.110.184.or
993.110.181.4r
993.110.183.4r

And the runners are:

993.110.181.4r
993.110.182.1r
991.110.181.4r

now the runner ending in 182.1r is the larger one. Additionally the body ending in 184.or is cast differently, in that there are re-enforcement risers cast into the bottom of the casting. Also, there is an additional stamp that says AZ91.

So any thoughts?

Thanks

Andy

[Bill Verburg]

Originally Posted by andy s

Hey All:

I have been led to believe that there are a few special Racing edition VarioRam intakes. As the story goes, Porsche made some intakes that look just like a stock Vario, but the entire system is larger in inside Diameter.

Now I happen to have 3 Vario Ram intakes. I have done a search here on the part numbers but nothing comes up.

But, Ironically one of the sets of runners is actually 3.5mm wider in ID from the other two. It also happens to be significantly darker in color.

So can anyone shed some light on this?

The Varioram main bodies have part numbers of:

993.110.184.or
993.110.181.4r
993.110.183.4r

And the runners are:

993.110.181.4r
993.110.182.1r
991.110.181.4r

now the runner ending in 182.1r is the larger one. Additionally the body ending in 184.or is cast differently, in that there are re-enforcement risers cast into the bottom of the casting. Also, there is an additional stamp that says AZ91.

So any thoughts?

Thanks

Andy

There are 2 different versions of the v-ram runners
RS which were made from '95 had larger magnesium versions, the normal 3.6 v-rams from '96 used slightly smaller aluminum versions

[andy s]

Bill:

Is it just the runners or the entire body?

thanks

Andy

[Bill Verburg]

Originally Posted by andy s

Bill:

Is it just the runners or the entire body?

thanks

Andy

Just the runners afaik

[Canada Kev]

What is the operational difference between the two?

Oh, and pics, pics, pics...

[andy s]

You know I can't do pics......

[Steve@Rennsport]

Originally Posted by syzygy

What is the operational difference between the two?

The magnesium RS runners were 3mm larger ID and meant to match up to the RS heads which have matching ports.

Operationally speaking, these are homologation specials and as such, do nothing for normal 3.6's or 3.8's using stock or RS cams and the OEM intake systems.

A properly built 3.6 or 3.8 can make 300-310 BHP with RS cams, RS intake valves, good software, and decent exhaust. 320+ with a race exhaust, and all with stock 993 heads.

[jcge]

AZ91 is a magnesium alloy

[andy s]

Hey Steve!

Long time, not talk, as I've been off doing other things. Thanks for the info.

You too Bill

Andy

[Steve@Rennsport]

Originally Posted by andy s

Hey Steve!

Long time, not talk, as I've been off doing other things. Thanks for the info.

Andy

Hey Andy,

Its been far too long,....

Stay well,

[Bill Verburg]

Originally Posted by syzygy

What is the operational difference between the two?

Oh, and pics, pics, pics...

there is no operational difference between the 2 v ram versions. Both use 3 modes of operation determined by throttle position and a electrically triggered/vacuum operated resonance flap and electrically triggered/vacuum operated runners


A.) Vibrating Tube Mode resonance flap is closed and tubes are long, used up to 5160rpm

B.) Resonance Mode 1 resonance flap is closed and tubes are short, used from 5160rpm and at least 50% throttle

C.) Resonance Mode 2 resonance flap is open and tubes are short, used from 5920rpm and more than 50% throttle

the RS manifold has a different part # too, I don't know what the difference there is, I believe from the colors that it is aluminum, when you look at them the RS tubes are obviously darker and known to be mg.

RS manifold(upper) 993.110.081.42
3.6 manifold(upper) 993.110.081.02

RS manifold tubes(lower) 993.110.181.43
3.6 manifold tubes(lower) 993.110.181.04

[andy s]

Thanks Bill!

Got the Pauter Rods on today, so its making progress.....

[ChrisBennet]

Originally Posted by andy s

You know I can't do pics......

I'll try to remember to bring a camera...
-Chris