[jacobflyin]

Hi I am going to get a SP1 and was wondering about the changes that have ben made to the SP2 and if they make a big defferance.

I would love to get some feed back as I am going tomorrow to buy one in the bay area of CA.

Thank you for your help.

[Chum]

Pros: ITS A RC51!

I cant help more than that.

[jacobflyin]

So your for the RC thats a good sign

[jrivas]

HEHE!!good one chum! go ahead and get and you find no cons
(other than just regular maintenance)

[jacobflyin]

Good

[skwyd]

did you get it? Pics?

[jonathan]

Originally Posted by jacobflyin

Hi I am going to get a SP1 and was wondering about the changes that have ben made to the SP2 and if they make a big defferance.

I would love to get some feed back as I am going tomorrow to buy one in the bay area of CA.

Thank you for your help.

This issue came up several times in the past.
Yes, there are a lot of small changes which makes up a big overall change.

To name few:
The chassis is diffrent (diffrent stiffer mounting points for the engine, diffrent steering head,diffrent rear swing arm).
The suspension are much more subtle (the SP1's are way too harsh)
The fuel injection was much improved to get reed of the SP1's abroupt on off transition.
The wheels are lighter to lighten the steering and it's not like the SP2 is light steering.

Overall the SP2 is a better street and better track tool.
Recomend you go for the SP2 as the settling of these in the SP1 are way too expensive.

[Maholli]

New for 2002

• Prodigious power is produced across a broad rpm band, peaking with 128 bhp at 10,000 rpm(2 hp increase over SP1) and 71 lb./ft. of torque at 8000 rpm in street-legal trim.
• Weight savings of 11 pounds have been achieved. Weight savings include: frame (9 oz.), swingarm (1.9 lb.), front fork (12 oz.), rear shock (7 oz.), front wheel (1.0 lb.), rear wheel (1.1 lb.).
• Larger, 62mm fuel injection throttle bodies inspired by HRC's championship works racers.
• The two fuel injectors for each cylinder now feature 12 laser-drilled jet holes in each injector tip for finer fuel atomization, resulting in more responsive throttle performance and faster, more efficient combustion for stronger power output.
• Newly designed exhaust ports feature an HRC(r)-developed shape for improved exhaust scavenging and velocity, resulting in increased engine performance.
• Fuel injection and ignition mapping are refined for the larger throttle bodies and new exhaust ports to produce smooth and linear throttle response, responding even more precisely to fine throttle adjustments.
• New shot-peening process applied to piston wrist pins results in a harder, longer-wearing surface that's more resistant to scoring.
• Exhaust mufflers are lightened throughout and secured by lighter mounting bands.
• Twin side-mounted radiators each have electric cooling fans to improve engine cooling.
• Cone-shaped clutch spring plate quiets and smoothes clutch engagement.
• Newly designed forged side engine-hangers are lighter (9.2 oz.) and stronger than the cast pieces they replace.
• HRC-designed press-forged aluminum swingarm is lengthened 16mm to improve rear wheel power delivery and is more rigid than the previous design for optimum race track handling.
• Rear subframe can be easily modified to reduce weight for racing application.
• Newly designed HRC-type integrated rear shock reservoir is repositioned for easy fitment of center-up high-performance competition exhaust.
• Brake fluid system pressure is increased 10 percent, resulting in even better braking feel and performance.
• New five-spoke wheels feature aerodynamic forward-facing V-shaped spokes and next-generation Dunlop D208 tires.
• New windscreen shape, derived from Colin Edwards' championship World Superbike HRC racer, is 1.2 inches taller than the previous design.
• Lightweight aluminum upper fairing stay is nearly 7 ounces lighter than the previous steel design.
• Larger under-seat tool tray.
• The black resin seat pan/rear fender located under the seat cowl has been completely redesigned to reposition the battery and electrical components farther forward for improved mass centralization.

[skwyd]

Maholli, that is the best explanation I have seen.

[Maholli]

Thank you...