The Stinson fuel depot and gas station just off the 417 in Arnprior (~25kms from the track) have 94 octane... Fri, Sat and Sun it's discounted 3 cents/liter. Usually ~$1.30/L on those days.

The gas station in question....Munfords in Calabogie are usually ~$1.50/L for the same 94 octane.

 

I can only assume that not only solid particles got stirred up during the refilling of a an empty reservoir, but possibly other immiscible liquids.

I will post my findings after the shop looks at the fuel filter and pump strainer. I also had some unusual whining of the fuel pump (less than a year old) on two occasions.


David.

 

My guess is "bad" gas not sediment gas. Bad meaning....could be old gas, mislabeled gas, user error putting in wrong octance, etc.

But then again it could be something totally unrelated to the gas. Sorry, just the stats guy in me doesn't blindly accept correlation as a cause/effect.

Good news is the car runs better

 

Glad to hear about the happy ending Dave. When I read your post, I immediately thought of Steve's story from last year.

Steve, I meant to tell you on Sunday: Your car is a freaking beast. The sound, the colour, the stance, everything. When I would see you coming, I just knew that I had to get out of the way.

 

david, are we seeing you at mosport on friday to sunday?

glad the car is fixed, now its our turn to have another problem with the cayman

lack of power when we hit the gaz hard: probably the maf...

the gt3 is getting back on his wheels also long time!

 

I hope it wasn't my driving style that was scaring you...... Gotta love a well set up 6GT3. Actually I think our cars are pretty much identical other than the colour and the wing. BTW, would be great to do the late passing thing with you next time we're out together. That looked like a lot of fun.

As for Dave's gas experience, it is eerily similar to mine last year at Calabogie. They ran out of fuel at Munford's, and I was at the station when the tanker arrived. They filled me up first while the tanker was filling the underground tank, as then my friend with a 7GTRS was filled up next. Drove back to the track and within about 5 laps I had the rough running, rpm limited experience. The car was basically untrackable. Managed to burn about half a tank on the local roads and then dumped in fresh fuel and a small jug of Canadian Tire fuel line cleaner. Next day at Tremblant, the condition was much better and within 2 sessions, it was back to normal. My friend with the 7GTRS suffered more, as he had to trailer his car early at Tremblant because it became increasingly undrivable even after about 3 new tanks of gas. He ultimately had to replace his fuel filter to get the problem solved. I don't disagree that there may have been other contributing factors, but I gotta believe that sediment from the tank was the primary culprit. Glad it wasn't terminal.

 

Family vacation period will force to resume track activity mid August starting with Calabogie with UCR... on a WEEKEND, thank-you very much !!!

Glad to hear your car is coming together. Hope you sort the Cayman soon.

 

UPDATE...
Got the car in to my mechanic to investigate the state of the fuel system after that loss of power episode at the track mid-July.

Turns out that the fuel was indeed carrying an large amount of various sediment and particulates. Fine sand-like bits, metallic particles, rubber-like shards. The strainer on the fuel pump was partially obstructed as well as the filter. one would have to assume that there was no filter on the dispenser.

Lesson learned. No gas right after tanker delivery.

 

Was this at Munfords again!!!

 

Yes. It appears I filled 2 jugs of fuel 20-30 minutes after the tanker came by to replenish them. They had ran out of fuel the night before.

 

Good to know for future track days....see you soon