AllanQ
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I have gathered the specs for what I think are the more commonly used engines by our members. I hope members can use this as an easy reference for engine specs or comparing the specs when trying to decide on an engine to buy. I did not include prices because they vary depending on where you decide to purchase. If there are more engines you think should be added please let me know. Hope this helps someone out.
For actual HP specs, please check out Moto's thread on engine HP here.
Axial 28RR Spec 1
The 28RR Spec 1 is a .28 cubic inch big block engine featuring a machined cast aluminum heat-sink head for extra cooling, dual bushing aluminum connecting rod, true ABC chrome sleeve construction for durability, and a three needle 9.0mm slide carburetor (including 8.0 & 8.5mm optional venturi’s) with a composite body for better performance at higher temperatures. The carburetor features a factory re-set line on the high speed needle, and flush needles making re-setting, to baseline factory specifications, quick and easy. There is also an optional Turbo Button head available.
This is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most aftermarket shaft drive starting systems.
Axial 28RR Spec 1
Size: .28 cubic inch/4.6cc
Maximum RPM: 38,500
Bore: 18.25mm
Stroke: 17.5mm
Construction: ABC
Heat-sink Head: Green Anodized (optional Grey available)
Carburetor: 9.0mm Composite Slide Carburetor (includes optional 8.0 & 8.5mm venturi’s)
Carburetor Adjustments: 3 Needle, Flush Settings
Case: Black Aluminum, Rear Exhaust
Connecting Rod: Dual Bushing
Sleeve: 7 port
Starting system: Pullstarter
Recommended Glow Plug: Cold-5 Power Plug
Features
• Lower CG engine head with increased cooling capacity
• True ABC construction
• Standard button head (optional turbo head available)
• Pull start included
• Optional rotostart backplate available
• Optional bumpstart backplate available for racers (uses AX0090 32 bumpstart backplate)
Axial 28 Spec 1s
The 28 Spec 1s is a .28 cubic inch big block engine featuring a machined billet aluminum heat-sink head for extra cooling, dual bushing aluminum connecting rod, true ABC chrome sleeve construction for durability, and a three needle 8.5mm slide carburetor with a composite body for better performance at higher temperatures. The carburetor features a factory re-set line on the high speed needle, and flush needles making re-setting, to baseline factory specifications, quick and easy. There is also an optional Turbo Button head available.
This is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most aftermarket shaft drive starting systems.
Specifications
Size .28cubic inch/4.6cc
Maximum RPM 36,000
Bore 18.6mm
Stroke 16.9mm
Construction ABC
Heat-sink Head Grey Anodized Aluminum
Carburetor 8.5mm Composite Slide Carb
Carburetor Adjustments 3 Needle, Flush Settings
Case Black Aluminum, Rear Exhaust
Connecting Rod Dual Bushing
Sleeve 8 port
Starting system Pullstarter
Recommended Glow Plug Cold-5 Power Plug
Axial 32 Spec1s
The 32 Spec 1s is a .32 cubic inch big block engine featuring a machined cast aluminum heat-sink head for extra cooling, dual bushing aluminum connecting rod, true ABC chrome sleeve construction for durability, and a three needle 9.0mm slide carburetor (including 8.0 & 8.5mm optional venturi�s) with a composite body for better performance at higher temperatures. The carburetor features a factory re-set line on the high speed needle, and flush needles making re-setting, to baseline factory specifications, quick and easy. There is also an optional Turbo Button head available.
This is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most aftermarket shaft drive starting systems.
Engine Specifications
Size .32cubic inch/5.2cc
Maximum RPM 34,000
Bore 19.5mm
Stroke 17.5mm
Construction ABC
Heat-sink Head Grey Anodized Aluminum
Carburetor 9.0mm Composite Slide Carburetor (includes optional 8.0 & 8.5mm venturi�s)
Carburetor Adjustments 3 Needle, Flush Settings
Case Black Aluminum, Rear Exhaust
Connecting Rod Dual Bushing
Sleeve 8 port
Starting system Pullstarter
Recommended Glow Plug Cold-5 Power Plug
OS 28XZ
SPECIFICATIONS
Stock Number: OSMG2074
Displacement: 0.284 cu in (4.65 cc)
Bore: 0.728 in (18.5 mm)
Stroke: 0.681 in (17.3 mm)
Practical rpm: 4,000-38,000
Weight: 13.1 oz (375 g)
OS 30VG
[FONT=Arial, Helvetica, sans-serif, Verdana, Trebuchet]
[/FONT]Available in three SG-crank versions, including a recoil start model and an SR model purpose-designed for the HPI Savage.
Rear-exhaust design.
Machined aluminum piston.
Double-bushed, tapered aluminum conrod for minimal wear and weight.
3-port liner.
Rubber-sealed front bearing reduces teardowns — enlarged rear bearing minimizes vibration and improves load-bearing capacity.
Oversized balanced crankshaft for added strength and smooth, vibration-free operation.
Insulated carb sleeve prevents heat-related vaporization and predetonation.
Rubber shaft boot preserves smooth, easy slide-valve operation.
[FONT=Arial, Helvetica, sans-serif]Engine[/FONT] Displacement[FONT=Arial, Helvetica, sans-serif](cu in)[/FONT] Bore[FONT=Arial, Helvetica, sans-serif](in) [/FONT]Stroke[FONT=Arial, Helvetica, sans-serif](in) [/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2]
30VG (P) [/SIZE][/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2]0.298 cu in (5 cc) [/SIZE][/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2] 0.728 in (17.5 mm)[/SIZE][/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2] 0.7165 in (18.2 mm)[/SIZE][/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2]
[/SIZE][/FONT]
LRP Z.28R Spec 3
rear exhaust
slide carburetor
SG shaft
ABC piston and sleeve
rpm-max 38,500rpm*
For actual HP specs, please check out Moto's thread on engine HP here.
Axial 28RR Spec 1
The 28RR Spec 1 is a .28 cubic inch big block engine featuring a machined cast aluminum heat-sink head for extra cooling, dual bushing aluminum connecting rod, true ABC chrome sleeve construction for durability, and a three needle 9.0mm slide carburetor (including 8.0 & 8.5mm optional venturi’s) with a composite body for better performance at higher temperatures. The carburetor features a factory re-set line on the high speed needle, and flush needles making re-setting, to baseline factory specifications, quick and easy. There is also an optional Turbo Button head available.
This is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most aftermarket shaft drive starting systems.
Axial 28RR Spec 1
Size: .28 cubic inch/4.6cc
Maximum RPM: 38,500
Bore: 18.25mm
Stroke: 17.5mm
Construction: ABC
Heat-sink Head: Green Anodized (optional Grey available)
Carburetor: 9.0mm Composite Slide Carburetor (includes optional 8.0 & 8.5mm venturi’s)
Carburetor Adjustments: 3 Needle, Flush Settings
Case: Black Aluminum, Rear Exhaust
Connecting Rod: Dual Bushing
Sleeve: 7 port
Starting system: Pullstarter
Recommended Glow Plug: Cold-5 Power Plug
Features
• Lower CG engine head with increased cooling capacity
• True ABC construction
• Standard button head (optional turbo head available)
• Pull start included
• Optional rotostart backplate available
• Optional bumpstart backplate available for racers (uses AX0090 32 bumpstart backplate)
Axial 28 Spec 1s
The 28 Spec 1s is a .28 cubic inch big block engine featuring a machined billet aluminum heat-sink head for extra cooling, dual bushing aluminum connecting rod, true ABC chrome sleeve construction for durability, and a three needle 8.5mm slide carburetor with a composite body for better performance at higher temperatures. The carburetor features a factory re-set line on the high speed needle, and flush needles making re-setting, to baseline factory specifications, quick and easy. There is also an optional Turbo Button head available.
This is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most aftermarket shaft drive starting systems.
Specifications
Size .28cubic inch/4.6cc
Maximum RPM 36,000
Bore 18.6mm
Stroke 16.9mm
Construction ABC
Heat-sink Head Grey Anodized Aluminum
Carburetor 8.5mm Composite Slide Carb
Carburetor Adjustments 3 Needle, Flush Settings
Case Black Aluminum, Rear Exhaust
Connecting Rod Dual Bushing
Sleeve 8 port
Starting system Pullstarter
Recommended Glow Plug Cold-5 Power Plug
Axial 32 Spec1s
The 32 Spec 1s is a .32 cubic inch big block engine featuring a machined cast aluminum heat-sink head for extra cooling, dual bushing aluminum connecting rod, true ABC chrome sleeve construction for durability, and a three needle 9.0mm slide carburetor (including 8.0 & 8.5mm optional venturi�s) with a composite body for better performance at higher temperatures. The carburetor features a factory re-set line on the high speed needle, and flush needles making re-setting, to baseline factory specifications, quick and easy. There is also an optional Turbo Button head available.
This is a direct bolt-in replacement engine for any .21+ engine mount, and will accept most aftermarket shaft drive starting systems.
Engine Specifications
Size .32cubic inch/5.2cc
Maximum RPM 34,000
Bore 19.5mm
Stroke 17.5mm
Construction ABC
Heat-sink Head Grey Anodized Aluminum
Carburetor 9.0mm Composite Slide Carburetor (includes optional 8.0 & 8.5mm venturi�s)
Carburetor Adjustments 3 Needle, Flush Settings
Case Black Aluminum, Rear Exhaust
Connecting Rod Dual Bushing
Sleeve 8 port
Starting system Pullstarter
Recommended Glow Plug Cold-5 Power Plug
OS 28XZ
The larger head aids in cooling, and is a 2-piece construction with inner head button.
A sealed front bearing and high-performance inner bearing are part of the new crankcase design.
The high-performance con rod features oiled bushings.
A sealed front bearing and high-performance inner bearing are part of the new crankcase design.
The high-performance con rod features oiled bushings.
Three needles enhance fine-tuning on the 21J slide-valve carb.
Comes with a high-performance P3 hot turbo plug.
Stock Number: OSMG2074
Displacement: 0.284 cu in (4.65 cc)
Bore: 0.728 in (18.5 mm)
Stroke: 0.681 in (17.3 mm)
Practical rpm: 4,000-38,000
Weight: 13.1 oz (375 g)
OS 30VG
[/FONT]Available in three SG-crank versions, including a recoil start model and an SR model purpose-designed for the HPI Savage.
Rear-exhaust design.
Machined aluminum piston.
Double-bushed, tapered aluminum conrod for minimal wear and weight.
3-port liner.
Rubber-sealed front bearing reduces teardowns — enlarged rear bearing minimizes vibration and improves load-bearing capacity.
Oversized balanced crankshaft for added strength and smooth, vibration-free operation.
Insulated carb sleeve prevents heat-related vaporization and predetonation.
Rubber shaft boot preserves smooth, easy slide-valve operation.
[FONT=Arial, Helvetica, sans-serif]Engine[/FONT] Displacement[FONT=Arial, Helvetica, sans-serif](cu in)[/FONT] Bore[FONT=Arial, Helvetica, sans-serif](in) [/FONT]Stroke[FONT=Arial, Helvetica, sans-serif](in) [/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2]
30VG (P) [/SIZE][/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2]0.298 cu in (5 cc) [/SIZE][/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2] 0.728 in (17.5 mm)[/SIZE][/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2] 0.7165 in (18.2 mm)[/SIZE][/FONT][FONT=Arial, Helvetica, sans-serif][SIZE=-2]
[/SIZE][/FONT]
LRP Z.28R Spec 3
rear exhaust
slide carburetor
SG shaft
ABC piston and sleeve
rpm-max 38,500rpm*
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