I know a bunch of you guys will find this hard to believe. But I have a buddy with a 99 Tcat and this thing is stock except one size smaller on the main and this sled gets 15 MPG riding in Quebec. I had a ZR 9 at the time and I was lucky to get that . There was a couple other T cats with clutch kits and they saw 12 MPG. I now have a trail ported motor, with pipes and reeds in my 02 Tcat. This is going to be my big mileage Quebec machine. I am starting to question my choice of pipes on this sled. Does any one out there get good mileage on there piped T cats? Or should I put the stock pipes back on?

Any comments are greatly appreciated.

Best of the season to you all!!!!!

First of all, the stock pipes are pretty good. They make good power when hot.
I have an older T-cat a 93 with the 900 triple. It usually gets around 15 mpg.

These motors make best torque and power at 8000-8100 and should be clutched for that RPM range.

I have a similar setup to yours and get maybe "edit" 8-10 mpg.... It's clutched for 86-8700 RPM which is the sweet spot.
I installed a Holtzman Tempa-flow to optimize my jetting
It's a fuel pig compared to my MachZ or my RX-1.....
But it's still king of the garage on the lake!!!!! 126mph in 2000' @ North Bay.... with a reverse chain case and stock gears....

I would love to get 15 MPG on my sled . And I have no doubt your 93 gets that. But we have different stock pipes. I hope to built a 93 Tcat as my next project I still remember the first time I saw one on a lake in 93. The sled just mad me say WOW.




Well that is what I was afraid of 8-10 MPG. That would suck when I am out on a 5 day tour with long intervals between fuel stops. All my buddies sleds will get far better then that for mileage. So I would be the first one to run out of fuel . "Been there done that" SUCKS!!!!!
I was really hoping some one would come on here and tell me they get good mileage with there mod Tcat. I know Arnie tell me he can do it. But will not share his secret with me. I but a Vari Flow on as well as exhaust temp probes but I believe I might be flogging a dead horse.

It seems like a lot of the Ontario T Cat crowd go to North Bay for the radar runs. I must admit 126 is a very good speed. I tilt my hat to you.
Our friend 87gtnos has set a very high target to shoot for, I hope some one can beat his speed this year. Good thing for us he has jumped ship to the Yammy crowd.
Maybe we can meet up all the local T cat guys this year at North Bay and eclipse his high mark?

Thing is, if you tweek it, looking to squeeze a little better MPG out of it, you better keep an eye on your EGT's in mid range.......
Even running 430 mj's I have to drive around a midrange hot spot.... Digitron make it a little easier
Everything is a trade off as you probably well know and up in northern Quebec where "good gas" can be scarce, it's better to be safe than sorry.....

Yup Jon's Tcat was fast. But I'd put my money on your juiced 1107 to blow his numbers off the map!!

Well I think I will make some power. But this speed game I think, is not just about power. I have had my ass kicked by sleds with less power then mine. As well I have beaten more powerful sleds then mine. I am real lucky that all my buddies have built T cats around here. So I have some one to bench mark against. I will be taking both of my sled to the lake this after noon and hope to post some results then. Wish me luck.

LOL!! It will be interesting!! The last winter I had the Tcat, I seriously considered BOSS NOSS, but simply didn't have the cash at the time!!
Maybe I'll gear up the Apex to 25-38 for the radar runs and just spray it!!!!! 23-38 got me 127.9mph!!



Now, back on topic. The only time I can tell about about mileage on the tcat....I had 540 mains, it was -23c ALL day and rode from Orrville to Dorset. Basically highspeed most of the time on the railway bed. I had a 13gal tank off a 2000 tcat. I used every drop!! I think it was like 100 miles on way.
I don't know how you guys figure out mileage....tell me what's mine? 7.7mpg that day??!!

The way I see it, you gotta pay to play...I just put in gas when I needed it, never worried about mileage!!! (this from a guy who's daily driver is a supercharged Mustang!)

1Gunner, did you just install the Tempa Flow or have you had it installed for awaile. The reason I am asking is I just installed one on my 2000 ZRT 800 and was hoping for maybe (1) mpg improvement. Right now I get around 8 to 10 depending on throttle opening.

Auggie

Good advice about the mid-range hot spot. You need to keep egt's below 1275degreesF, with the sensor 7" from the exh flange.

BTW, I have 450 mains and am going up to 460's because of mbte and 10% ethanol in the premium fuel now.

Well after reading the stuff above, I have to tell you I am going to put the stock pipes back on. The comment about "up in northern Quebec where "good gas" can be scarce". Made my mind up for me. After a good Christmas meal, it will be out to the garage for some wrenching for me. That is if my BOSS will let me!

It will help get you that 1mpg at least. Especially if the temps you ride in vary a lot, it really helps a lot when it's warmer then what you've jetted for, plus your machine won't be lazy at the warmer temps.

We rode Northern Quebec, Sennetaire, Val'dor, etc....lots of PREMIUM fuel up there.

Canadian gallons are bigger

Most things are bigger in Canada!!!!

I am gonna guess 8 mpg on mine.

Northern Quebec is big..... and I said .."good gas can be scarce"... as in... there can be many miles between fill ups on cross country trips, and there's not always premium when you get there.... over 20 years of sledding in La Belle Provence has taught me to always expect the unexpected, and when you do happen to find "lots of PREMIUM fuel" as you did on your one trip, then that's a pure bonus!!!

Auggie I've had the Tempa-flow on the Tcat since 02. If nothing else it optimizes your jetting and I've verified it with EGT temps. They stay the same in cold and mild weather. I definitely does not hurt mileage

Thats what I was hoping to hear

Auggie

mmmmm.......does that mean you will have a set of wrinkle pipes for sale?

Had the CPR pipes on the trail sled. The line up for a set of wrinkles just keeps getting longer!
You have no idea how many guys get a hold of me, and want to pry a set out of my hands.
These things must be worth there weight in gold judging by the interest.

hey all. fuel mileage doesn't have to be an issue on these old girls. i get the same mileage as the new mach z's we are within 1 dollar on fillups. i have cut cases stock cylinders and reeds (except for i trimmed the reed cages as per 87gtnos post wayyy back) jaws pipes and i run 490 mains, k&n filters and 2 degree key. the secret to getting fuel mileage is to drop the needle 1 clip. BUT beware as mentioned preveiously there is a midrange lean spot so don't hold it in one spot too long or you could run into problems. also roll into the throttle instead of mashing it all the time makes a big difference on the fuel used. rubber side down

My wrinkles fitted into a 2000 chassis.

LOL!! I hear ya Gunner!

My running was between towns, Val'dor, Ryoun, Senetaire, La'Sar, etc...which are all like 100+ km trips and all had major stations like Shell for example!!

But I am sure if we headed north to Chiboogamoo we'd run outta good fuel!!

Those pipes seem to fit real good. Did you have the same guy that did Ron H pipes do yours? I am not sure these wrinkle pipes are the end all do all that some of you guys think. On my buddies sled we tried the wrinkles as well as a set of CPR pipes on a 98 1000 with DD porting and the sled works better with the CPR pipes. But this pipe stuff seems to be different on each application.

Yep.......Doc Fang. He did an awesome job. These pipes were virgin "pillow" hydro-form pieces from Hooper so Doc had a lot of time into fitting these. I haven't had a chance to run these yet, but will be getting out tomorrow. It's going to be seat of the pants because it won't be a test and tune session, just trail ride. I ran the wrinkles on my 1050 in a '96 chassis and the thing was awesome. I sold my CPR pipes last year in order to go with this set up. Wish I would have had a chance to do some dyno runs, but it didn't work out. I think you were supposed to come down for some of that action, right. Oh well.
I have a lot of confidence in Ron. He usually thinks out of the box........LOL

I bought my '01 last year and it was 100% stock. I added reeds and tempa flo. Put 800 miles on it in one trip last year in the UP and got around 12 mpg's. It was a lot of on-off the throttle trip. Next month I will be going to Ontario to backpack 4 nights from the Soo up to Cochrane and back. Am looking forward to see what kind of mileage I get on those trails. BTW, I'm getting nearly identical mileage on this sled as the ZR800 I had before.

I thought the midrange was controled by the needle jet?

It is, unless you have a TempaFlow also installed.....
Because it controls the carbs vent tubes, it affects the carb overall.......
needle jets as well as the main jets.......

I see that your using and older style can,How does that work.