buellrunner

So the weather finally got better here in Toronto. My first air cooled Porsche. SO, the paranoia is setting in. Whats the deal with dirving these AMAZING cars in stop and go traffic in heat heading home from work. My temp went to half way (maybe even 1mm above) for the first time since I owned here. She seems to sound a little more "chattery" when shes hot (more valvetrain noises and such). Is there anything that I should do, any tips for driving these cars when hot? Can I accelarate as I normally would when the motor is pretty hot? Should I avoid stop and go traffic? Can I drive her like a liquid cooled car and not think about it??

Any tips from long time owners would be great!

Thanks crew

Jack

chancecasey

Uh, what is "hot" there? Loads of people drive in stop and go in 100F weather - as long as your oil cooling fan is working right should be no worries. If your temp gets one tick away from red then you can start worrying. You should actually hear your valves less as it gets warmer - maybe some pundit can chime in on what that extra noise is - I don't recall more noise when hot.

dfinnegan

The thermostat should open just below the 194F mark (at 188F). You can tell if this occurs because the right-front wing will get warm to the touch.

The oil coiler fan should then come on about a third up from the 194F mark (at 212F). You can tell by placing your hand under the right-front bumper in front of the wheel and feel for air blowing. You should hear the fan, too.

At 239F the oil cooler fan switches to high speed.

I've never seen more than 10 o'clock on my car even when my fan switch was out and I drove in stop-n-go into the city in roughly 90F weather.

I did see close to 10 o'clock when my thermostat went out (stuck closed) earlier this year when the weather was quite a bit cooler (~50F).

I believe it is p-car.com that has the write-up for all of this.

buellrunner

Thanks for the info guys.

Jack

aeroman

I notice a quick instance of engine ping when she get real hot and I have not added 5 gallons of 101 octane to the tank from the station down the hill. You can drive around it by keeping RPMs above 3000.

etom

Hello Jack,

You might be one of the newer Canadians on the Rennlist. Here are some of your Canuck 964 colleagues who have checked in the past while, with your name now included, of course:

911guy in Calgary, AB (92 C2)
92C2Targa#119 [Walton] in Ottawa, ON (92 C2 Targa)
92C4 in Montreal, PQ (92 C4)
9six4 in Toronto, ON (90 C2 coupe)
Alex Sol north of Toronto, ON (91 C2)
Bangkokian in Thailand (93 C2)
Buellrunner (Jack) in Toronto (model not sure)
Bjsinfield in Fort Saskatchewan (91 Targa)
Bob Rouleau in Montreal, PQ (model not sure)
C24FUN in Surrey, BC (90 coupe)
canuck964 in Burnaby, BC (90 C4)
cjansen in Calgary, AB (92 C2)
CWay27 in Montreal, PQ (93 RS America)
DarrylH in Toronto, ON (90 C2)
DeAd-EyE in Toronto, ON (96 996 with cool specs)
DerkBarrington in Saint John NB (90 C4)
DiamondBlueMetallic in Ottawa, ON (90 C2 Diamond Blue)
Dsmyth in Ottawa, ON (91 Targa)
etom in Victoria, BC (92 C2 coupe)
f11 [Rod] in Edmonton, AB (91 C4 cab )
frankvan in St. Albert, AB (silver 89 C4)
Garth S in Nova Scotia (993 C4S)
Gtihop in Halifax, NS (911 SC, year unknown)
Hpuck north of Toronto (96 white Targa)
JasonAndreas in Massachusetts, USA (model not sure)
Jean-Pierre (“Monique”) somewhere in Europe (96 993 Euro RS)
KirkF in Winnipeg MB (89 C4)
last toy in Toronto (90 C4)
Marc Shaw in Grande Prairie, AB (91 C4 coupe)
NinetyOneC2 in Toronto, ON (91 C2 Coupe SOLD, with regrets, it seems)
Northfire in Vancouver, BC (93 RS America)
Olav A. in Los Gatos, CA, via Vancouver (993, 914)
Oracle in Calgary, AB (90 C2 Coupe)
ped964 [John P] in Calgary, AB (89 C4)
PMB in Toronto, ON (94 C2 cab)
Rasmkd in Brooks, AB (90 911 C2)
Red rooster [Geoff] in Halifax, NS (89 C4)
rconnon in Vancouver, BC (95 C2 but has “mad love” for the 964)
R6XTERRA in Cambridge, ON (91 C2 black cab)
skruggs964 in Calgary, AB (Cab not sure)
SoloRacer in Calgary, AB (he wants to own a turbo 964!)
SR71BLACKBIRD in Seattle, WA (993 C2, but we won’t hold it against him)
Sracer [Brandon J] in Bowling Green, Kentucky, via Lethbridge, AB (90 944 S2)
Syd B. in Toronto, ON (91 C2)
thedyingiraffe in Ottawa, On (964 Targa with 993 VRAM engine)
theiceman in Cambridge, On (78SC Targa; uses hockey stick to hold up engine hood)
timothymoffat in Vancouver, BC (993, interested in seeing a 964RS in Canada)
Translog in Montreal, PQ (01 996)
trevorc in Calgary, AB (looking for a C4)

Post a note if you’ve been missed or there is incorrect/incomplete info.

buellrunner

hey etom,

my model is a 1990 964 carerra 2.

thanks for the list,

Jack

Red rooster

Jack,

For hot city driving get that rear spoiler up permanent !! My C4 , being one of the first made didnt have the rear spoiler control , so guess what was one of the first updates .
It really makes a big difference.

All the best with your new toy.

Geoff

zicoramone

Hey you will see it much higher...believe it

amfp

Also make sure your engine pan is removed to reduce heat.

jimq

Trouble maker

J.PELLEGRINO

Has anyone checked the oil cooler fan function?..it id designed to move air over the fender mounted oil cooler in slow moving situations. The low speed function may not be operating, the series resistor may have failed...
Good luck, Jerry

buellrunner

Remove the engine pan? Ok...but wont that create drag?

amfp

IMO, no. Debated in various threads if do a search. Suggest reading them and make your decision.