axl911

So, what's the trick to get that throttle cable back on in the Vram equipped car?

Robin 993DX

The fan only runs for a short interval when the engine bay reaches a predefined temperature after shut down. The temp sensor is located on the heater tube itself after the blower fan.

Robin 993DX

With the engine dropped down a little so you can reach in from the left side of the car. One person pull and another push from behind the grummet. It also will help if you spray a little brake parts cleaner on the grummet to help squeeze it back in.

Like I said, we no longer removed the throttle cable from the engine end. It's easier to take it off from the throttle cable end and remove the entire cable. Interestingly that's what the factory shop manual recommends.

Cactus

Just curious about this statement. Since this RS tube was on cars made for racing it would seem there would be more heat generated under racing conditions than street use? Just curious...Thoughts?

Robin 993DX

Racing does not = Longitivity

With track events there are always a cool down laps to allow cars to cool down.

JM993

Alternatively, if you don't have cruise control (I dumped mine when I did my vram conversion, you can reach in with the manifold halfway installed and connect the cable. Takes some dexterity, but it's doable as a one man job w/o dropping the engine.

See the link in my sig for details/pics

Cactus

So you think it is a bad idea?

Robin 993DX

There is no good or bad idea. If it is a street car I wouldn't bother doing the RS heater tube mod, but if you are building a dedicated track car it would be a nice addition to save some weight.

FWIW, the heater blower box weights nothing.

Cactus

I was doing it for looks only really. I just like a clean look.

Arena993

May I suggest a shower and a shave?

Mike

Dan V

It's not only cooling after engine shut down. There are 3 modes of operation as described in Streather's 993 Companion, pp 349 - 350.

(been waiting a long time to use that smiley )

TheOtherEric

Yup, I'll keep my blower thank you very much. After a track session, I leave the key in the ignition for about 15 minutes, which causes the blower to push air over the heads. That really cools the entire engine bay really well.

Fly911

The non Vario Ram 993 is better than the Vario Ram in nearly every way. It's cheaper to buy, cheaper and easier to do maintrenance, the engine is more responsive, it's lighter, it's cheaper and easier to chip (concervative 300HP with FVD chip and sport mufflers, the Vario Ram also will give 300HP with chip and sport mufflers), the non VRam does not have OBDII port, i.e. easier smogg tests, you can use cat delete pipes without CEL, the list goes on and on. The German magasine Auto Motor und Sport tested the non VR and VR 993's side by side, both did 0-100km/h (62mph) in 5.2 seconds, and at standstill to 1km the non VR was 0.2 seconds faster! The only benefit of the VR is the higher torque on low rpm, so if you put-put around town in 4th gear the VR is the thing. Until you clog up the SAI and get a CEL and fail smog test on the next inspection. So why do people want the VR? It looks cooler and it's newer than the non VR. The verdict of the non VR v.s. the VR, is that Porsche abandoned the VR system, and for all 986/987 and 996/997 cars went back the the non VR of the 94-95 model 993, using a fixed resonance chamber in the air intake, with an on/off butterfly valve to optimize air induction over the rpm range. Let all the "ignorant" have the VR 993's, while the 993 connoisseurs choose the non VR cars.

si2t3m

I'd really like to get educated on these 3 modes. I don't have Steather's 993 Companion... Care for a quick lesson?

thanks

Rinty

I still like my VarioRam; and the word sounds kind of cool.

But I didn't know that '95's have shorter gears.