RT is keeping me awake

[spyryder]

WOW---- that's pretty shocking. How was this 'verified'?

Check Spydertalk:f_spider:

 

[Duc_B]

Darn it, I just put down the cash for a 08.. Now BRP had to come out with the RT.. Damn them I say but hey look on the bright side non RT owners. We will smoke them at the light and on the freeways...:thumbup: since they are umm like " cough cough " 1000lbs :roflblack:..

 

[BajaRon]

The RT has some interesting numbers when compared to the SM-5 / SE-5

I've listed the differences in RED below.

As mentioned before, less HP, more Torque and everthing happens quite a bit lower in the RPM range. That is a real plus for this configuration.

Compression is up a whopping 1.4:1. That is quite a bit. I notice there was no fuel recommendation. Here we go again!

The front stance is 3" wider. That will really give a stable foot print.

Interesting that the brake rotors are listed as 10mm smaller. Not significant and I wonder if one of the specs is off as I don't see BRP putting smaller rotors on, or different rotors on if they are that close.

The S-model lists 7.13 gals of fuel and the RT 6.6 gals. I think the S-model is listing total air space and the RT is listing a more accurate fuel space. I'd bet they use the same tank.

The RT also specs out less oil capacity than the S-model. What is that all about?

The RT starts out a whopping 232 lbs heavier with a higher max load rating. Yet the GVWR is the same for both models. That puzzles me.

Engine - BRP-Rotax
Type – 991 V-Twin DOHC w/ 4 valves per cylinder
Displacement - 998cc - (60.90 cu. in.)
Bore/Stroke - 97 mm X 68mm (3.82 X 2.68 in.)
Max output - 100 hp @ 7500 RPM - Minus 6hp @ 1,000 RPM Lower
Max torque - 80 lb-ft. @ 5500 RPM - Plus 3 ft, lb's @ 700 RPM Lower
Compression ratio - 12.2:1 - Plus 1.4:1
Ignition type - Electronic ignition
Exhaust system - 2-into-1 with catalytic converter
Cooling - Liquid-cooled
Injection - Multi-point EFI w/ 57mm throttle bodies
Gear box - 5-Speed manual (SM5) with remote electronic reverse interlock or
5-Speed semi-automatic (SE5) with remote electronic reverse interlock
Final Drive - 28/79 ratio final drive with Kevlar-reinforced drive belt
Clutch - Wet, multi-plate, manual operation through a hydraulic piston
Electric Equipment - Magneto - 650 Watts - Plus 150 Watts
Starter - Electric
Front suspension - Double A-Arm with anti-roll bar
Front suspension travel - 5.94 in. (151 mm) gas shocks with 5-position cam adjustment - Plus 0.27 in. travel (5.67 S-model)
Rear suspension - Swing-arm with monoshock
Rear suspension travel - 5.71 in. (145 mm) with pneumatic adjustable preload - Same travel but added Air Adjust
Chassis - SST Spyder (Surrounding Spar Technology)
Front tire - KR21 165/65R14
Rear tire - KR21 225/50R15
Wheel size, front - Aluminum 14x5 (355x127)
Wheel size, rear - Aluminum 15x7 (381x178)
Brake Type - Foot-actuated, fully integrated hydraulic 3-wheel braking system
Front braking system - 4 piston calipers, 31.75 mm diameter, 250mm x 6mm disc - (S-model listed as 260mm x 6mm)
Rear braking system - Single-piston sliding pins caliper 38.1mm diameter, 250 mm x 6 mm disc - (S-model listed as 260mm x 6mm)
ABS - Anti-lock Braking System
Parking brake - Electro-mechanical park brake system with actuator on the rear caliper - Not sure what 'Electro' means but that is different
Dry weight - 929 lb. (421 kg) - Plus 232 lbs
Front max load capacity - 30 lb. (15.9 kg)
Total vehicle load allowed - 525 lb. - (240 kg) - Plus 85 lbs
Trailer towing capacity - 400 lb. (181.4 kg) - All New!
Fuel capacity - 6.6 US gal. (25 l) S-model says 7.13, think this is apples and oranges - Must be same tank
Oil capacity - 0.9 US gal. (3.5 l) - S-model states 1.19 US gal.
GVWR - 1,188 lb. (540 kg) - Same GVWR ???
Ground clearance - 4.5 in. (115 mm)
Vehicle overall height - 45.1 in. (1,145 mm)
Vehicle overall length - 105 in. (2,667 mm)
Vehicle overall width - 62.3 in. (1,582 mm) - Plus 3 in.
Seat (top) height - 29.5 in. (750 mm) - Plus 0.5 in.
Wheelbase - 69.8 in. (1,773 mm) - Plus 1.8 in.
Wheel track, front - 54.5 in. (1,384 mm) - Plus 3 in.

 

[dave01]

Didnt notice the wider stance. Now I will have to cut out the door opening on the SpyderCave ( aka portable building) that I just purchased last week to keep the Spyder safe at the NC cabin. A good project for next month...LOL

 

[spyryder]

wheelbases

The RT has some interesting numbers when compared to the SM-5 / SE-5

I've listed the differences in RED below.

As mentioned before, less HP, more Torque and everthing happens quite a bit lower in the RPM range. That is a real plus for this configuration.

Compression is up a whopping 1.4:1. That is quite a bit. I notice there was no fuel recommendation. Here we go again!

The front stance is 3" wider. That will really give a stable foot print.

Interesting that the brake rotors are listed as 10mm smaller. Not significant and I wonder if one of the specs is off as I don't see BRP putting smaller rotors on, or different rotors on if they are that close.

The S-model lists 7.13 gals of fuel and the RT 6.6 gals. I think the S-model is listing total air space and the RT is listing a more accurate fuel space. I'd bet they use the same tank.

The RT also specs out less oil capacity than the S-model. What is that all about?

The RT starts out a whopping 232 lbs heavier with a higher max load rating. Yet the GVWR is the same for both models. That puzzles me.

Noticed a difference in wheelbase....while the R/T-S is longer than the stock Spyder, the other two R/T'S actually have a shorter wheelbase at 67.2 inches. .8 of an inch SHORTER than the regular Spyder!

 

[Firefly]

The RT has some interesting numbers when compared to the SM-5 / SE-5

I've listed the differences in RED below.

As mentioned before, less HP, more Torque and everthing happens quite a bit lower in the RPM range. That is a real plus for this configuration.

Compression is up a whopping 1.4:1. That is quite a bit. I notice there was no fuel recommendation. Here we go again!

The front stance is 3" wider. That will really give a stable foot print.

Interesting that the brake rotors are listed as 10mm smaller. Not significant and I wonder if one of the specs is off as I don't see BRP putting smaller rotors on, or different rotors on if they are that close.

The S-model lists 7.13 gals of fuel and the RT 6.6 gals. I think the S-model is listing total air space and the RT is listing a more accurate fuel space. I'd bet they use the same tank.

The RT also specs out less oil capacity than the S-model. What is that all about?

The RT starts out a whopping 232 lbs heavier with a higher max load rating. Yet the GVWR is the same for both models. That puzzles me.

All of the RT models with the 991 engine require 91 octane--- it's in the brochure and on the website.....

 

[redspyderlady]

How about I bring it by and show you. :doorag:

That would be great:clap:

 

[dave01]

The RT has some interesting numbers when compared to the SM-5 / SE-5

I've listed the differences in RED below.


The front stance is 3" wider. That will really give a stable foot print.

Looks like I will need a new trailer to haul it in, a new storage shed to put it in in NC. Man, the cost is adding up..LOL

 

[docdoru]

The RT has some interesting numbers when compared to the SM-5 / SE-5

I've listed the differences in RED below.


The front stance is 3" wider. That will really give a stable foot print.

Looks like I will need a new trailer to haul it in, a new storage shed to put it in in NC. Man, the cost is adding up..LOL

Trading in for the RT and still want to trailer it? :yikes:

 

[dave01]

Trading in for the RT and still want to trailer it? :yikes:

LOL, only when I go to Texas for a month. Would be nice to have something i can take a few friends to dinner with.

 

[BajaRon]

All of the RT models with the 991 engine require 91 octane--- it's in the brochure and on the website.....

It's funny that BRP feels the need to play with the displacement numbers.

Spyder SM5 & SE5
Actual Displacment 998cc - Called 990

Spyder RT
Actual Displacment 998cc - Called 991

Aprilia Motorcycle
Actual Displacement 998cc - Called 1000

Same actual displacment, 3 different numbers. Why?

 

[Firefly]

It's funny that BRP feels the need to play with the displacement numbers.

Spyder SM5 & SE5
Actual Displacment 998cc - Called 990

Spyder RT
Actual Displacment 998cc - Called 991

Aprilia Motorcycle
Actual Displacement 998cc - Called 1000

Same actual displacment, 3 different numbers. Why?

Yeah--- that cracks me up too. I just tell people that it's 1,000cc's. Lamont says that the RT 'can' run on 87--- but they recommend 91.

 

[BajaRon]

Yeah--- that cracks me up too. I just tell people that it's 1,000cc's. Lamont says that the RT 'can' run on 87--- but they recommend 91.

If you retard the timing enough you can run just about anything on 87 octane. You lose performance and fuel mileage but it will run.

I can see people putting octane booster in the RT to get better performance. Only BRP knows if that will help or not.

Our Spyders at 10.8:1 should run on 100 octane by the Compression/Octane chart. While there are some things you can do to the combustion chamber to reduce the octane needed, you can't get anywhere near a 13 octane reduction that way.

So you'd have to conclude that there is some timing compromises in the mix. And we know BRP uses timing retard to combat knock created by too low octane.

Minimum Octane and optimal Octane are two different things these days.

 

[Spyder#353]

I really like this new RT. Just when I get my spyder right. BRP comes out with this RT in my favorite color. "Blue" Haven't seen it yet. But I think I will buy one in January. Sooner if work picks up. Maybe I'll sell my other bike.