I need a new motor--

[Biodragen]

Looks like this took a cruddy turn based on the posts.

Anyway This is where I am at with motors---I know you guys mentioned a few and that NR-528 I would have jumped on . That is out of range for cost for me.

So this is what I have looked into so far.

SW 26 w\o pull start
Type: 2-stroke
Displacement: .26 (4.26 cc)
Bore: 18mm (.71 in)
Stroke: 16.75mm (.66 in)
Engine (Only) Weight: 16.2 oz
RPM Range: 33,000
HP: 2.75
Cylinder Type: ABC
Starting System: Pull Start
Carb Type: Slide
Crank Type: SG


Picco 27 w\pull start
CLAIMED HP 3.1
RPM 34,000
CARB TYPE SLIDE
CRANK SG/Threaded
CONSTRUCTION ABC
ENGINE CASE SIZE .21
ENGINE BORE SIZE .27
TYPE REAR EXHAUST
PORTS 8 ports
DISPLACEMENT .27 c.i., 16.8 stroke
CRANKSHAFT Heavy Duty Crankshaft 14mm
CARBURETOR Composite, 8mm insert, changeable
PLUG TYPE Standard


Orion Wasp .28
• Horsepower: 2.85
• RPM (max): 42,800
• Carburetor: 2-Needle Slide
• Crank: Standard SG
• Engine bore size: 18.8mm
• Exhaust: Rear
• Stroke: 16.5mm
• ABC piston/sleeve
• Turbo design race ported crank
• Knife-edge double bushing connecting rod
• High performance 8mm aluminum slide carburetor
• Skirted / double oil groove piston design
• 3 transfer, 1 exhaust race spec porting configuration
• 2-piece replaceable button style Turbo head
• 6 bolt / 12 fin head configuration
• Sleeve locating pin for precise port alignment


Collari WRXLC30MT
3-port ABC constructed sleeve, coupled with the new "split-transfer" port case.
The connecting rod has been strengthened to be able to handle the rigors of greater horsepower.
It also has a fluted crankshaft and oversized pullstart one-way and shaft.
3.5HP 36,000RPM


Collari WRXLC32MTR Out of the box the crankshaft features chamfered timing inlets and a fluted counter-balance.
oversized cooling head and an 8.5mm aluminum carburetor that features a bullet-proof steel slide.
Standard dogbone drive roto-start included. 3.65HP 36,000RPM


Racers Edge Sure Fire .32 8-port
Horsepower: 3.6
RPM: 38,000
Engine Size: .32 cubic inch (5.2cc)
Sleeve: 8 port
Bore: 19.5 mm
Stroke: 17.5 mm
Crank: SG Type
Construction: ABC
Weight: 450 g (w/pull start)
Carburetor: 9 mm composite slide (with 8.5mm & 8 mm Carburetor reducers)
Carburetor adjustments: 3 needle, easy flush setting
Connecting rod: 7075 aluminum (Dual bushing)
Exhaust Type: Rear
Plug Type: Standard
Starting: Pullstart included



Right now I use the SW Rotostart an I would hope to use it ---I do not have a bump box nor do I care for the P\S set up.

So what is the census based on what I looked into.

[rocco79]

Id go with the 1st one you listed. The rest are not the best for racing, more basher motors. And i dont think the .32 is really even legal to race at a pro series event... I think

RUN from the wasp 28!!!!!!!!!!!!!!!!!!!!!!!!!!!

[thenewguy821]

I've heard quite a mix of reports on the Wasp .28, from Hard to Tune, Unreliable, doesn't hold a tune, to it being a great motor.

The SW .26 is really a good motor for the money. I had 6 gallons through a Mach .26 which is the same motor, with a different carb, and was still running strong when I sold it.

If you go with the SW, use the largest carb insert, you will deffinately notice the power increase.

[Biodragen]

Oh yeah I forgot about the inserts.
The Mach 26 is that a Dynamite or a Assoc motor?

[thenewguy821]

Mach .26 is a Dynamite. If you look at the Engine, it's exactly like the SW, without the removable inserts for the Carb. The carb has the same opening as the middle size SW insert. The SW .26, Dynamite Mach .26, SH .28 and XTM 24.7 are all made by the same company.

[Tex]

I would go with the first thing on the list also.