Axial .28RR Pro Off Road Competition Engine (Green)
AXI0330
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Taking things to a whole new level! You already know how well the Axial 28 Spec 1s performed. Now it is time to take things to a whole new level with the Axial 28RR Spec 1. The 28RR is designed to rev higher while still maintaining superior levels of torque. The new engine head offers a lower center of gravity as well as increased cooling capacity.
Axial engines include ABC construction, Composite 3 needle carburetor, 7 port design, reliable pull start, and incredible performance! We use the highest quality materials and the latest CAD and CNC techniques to maintain the maximum quality level possible. Axial engines are also dyno tested to ensure the best level of performance possible.
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.
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)
Specifications:
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/ O'Donnell #99 (Any other brand standard length non turbo cold glow plug will work also)
Axial engines include ABC construction, Composite 3 needle carburetor, 7 port design, reliable pull start, and incredible performance! We use the highest quality materials and the latest CAD and CNC techniques to maintain the maximum quality level possible. Axial engines are also dyno tested to ensure the best level of performance possible.
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.
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)
Specifications:
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/ O'Donnell #99 (Any other brand standard length non turbo cold glow plug will work also)
This product was added to our catalog on July 3, 2007
david barnes
Tuesday, Dec 29 2009 (about 14 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
Hi guys i have a one way bearing that the pin keeps snapping off this will be the third one has any one eles have had this thanks Dave
Dan Smith
Monday, Aug 10 2009 (about 14 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
This low priced engine is a real screamer. I removed the pull start, installed the new backplate and installed the turbo head before ever starting it. I run number 7 turbo glow plugs in it. Broke it in with one tank on the bench and 5 tanks rich at the track....then put the power to it. It pulls my Mugen MBX5T truggy like a high priced engine. Great low end and high end power. They do run hot compared to other engines. At about 270-280 degrees F, it screams and after about 3 gallons of Byrons 20% the pinch is still so tight it is almost impossible to turn over by hand. I have run right with truggys with GRP's and OS Max Vspecs several times. You won't find a faster engine for the money. Just don't worry about the heat.....they run hot.
gerard murphy
Monday, Jun 1 2009 (about 14 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
The best plac for this engne is in the bin.Same will the axial service. -//- I HAVE THIS ENGINE IT BROKE AFTER 7 TANKS OF FUEL THROUGH IT.DONT WASTE YOUR MONEY.
Anonymous
Wednesday, Jun 3 2009 (about 14 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
I have about 1 1/2 gallons through this engine. It rocks. It's torque is unbelieveable, and the acceleration is almost scary. It really gets people's attention when you fire it up!! It started up right out of the box and was easy to break in. It is rock solid and well worth the small price tag. Highly recommended!!!
Anonymous
Verified Owner
Sunday, Sep 7 2008 (about 15 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
Its good engine! fast ! and powered . I put on my hyper 8 5 and every time i starded i want other tires. But the tuned pipe i have one ofna for 21 engines and i want to buy other. Can you say me what pipe i will buy for this engine?? -//- this engine have very very power but top speed i dont test yet!!!
Guy Zakimi
Thursday, Nov 6 2008 (about 15 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
It's a good engine but you need seal the whole engine and carb. Mine took about a gallon to completly break in. Then it started making power! Not too much low end torque but the mid and top end is great! I when I first purchased this engine, it was installed on
on my Hellfire but now it's installed on my Mutilator. Bottom line it's a good basher but for racing I would rather go with the os 28xz.
on my Hellfire but now it's installed on my Mutilator. Bottom line it's a good basher but for racing I would rather go with the os 28xz.
Josh Riese
Wednesday, Oct 8 2008 (about 15 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
great engine, have almost half gallon thru it with no problems at all. runnin byron 20% with an os lc3 hot plug in an 8ight t truggy with a jp-3 pipe.
Anonymous
Sunday, Aug 17 2008 (about 15 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
i have a inferno st us sport and the crappy engine it comes with broke. would this engine be a good replacement for it. i do race but i just put money on my buggy so i dont realy want to shove more money into the inferno.
john barrera
Wednesday, Jul 16 2008 (about 15 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
this thing is one heck of a motor i got it just to run my mbx5t try it out and see if it was any good it was cheap so i went for it.........im happy i got it for the price this motor cant be beat it runs great temp never got to hot got a good tune and its been strong....i did take the pull start off though and did use the back plate
Anonymous
Wednesday, May 21 2008 (about 15 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
I got this powerplant last summer for the right price hoping to get some practice time in my Truggy before investing in a higher pedigree engine. What I discovered is that it is a great, competitive engine that keeps up with anything but the most tricked out modded engines I've seen. It does run hot, no doubt but when I talked to Axial they essentially said don't get hung up on the temp, tune it to run right and don't worry about it. Thinking I am ready to move up to a different engine anyway, I've been running the snot out of it almost trying to kill it and the little green monster just keeps giving back. I'm very pleased with it.
One unknown however - I know it is a lot more linear than the Spec 1 version Axial 28 but I don't know how linear it is compared to "true" race engines - but ready to find out.
One unknown however - I know it is a lot more linear than the Spec 1 version Axial 28 but I don't know how linear it is compared to "true" race engines - but ready to find out.
Anonymous
Thursday, Apr 10 2008 (about 16 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
If you have had bad experiences with this engine, please check if you have one with issue I wrote about in my first rewiew!!
If that is the case, then buy a new engine case for it!! -//- This engine had an issue, with the porting inside the engine crank case, when it was released.
The porting for the exhaust was protruding into the Schnuerle channels on both sides of the engine case.
That is probably why there is some very bad rewiews on this engine in the beginning.
I contacted Axial, and they took action on the matter.
THIS HAS BEEN SOLVED!!
If you convert it to bump start, it is a screamer!!
Consider using a nova Race pro head, or any other race head, as the original is a bit on the small side.
Rather good buy - i would recommend it - just look at the sparepart prices.
If that is the case, then buy a new engine case for it!! -//- This engine had an issue, with the porting inside the engine crank case, when it was released.
The porting for the exhaust was protruding into the Schnuerle channels on both sides of the engine case.
That is probably why there is some very bad rewiews on this engine in the beginning.
I contacted Axial, and they took action on the matter.
THIS HAS BEEN SOLVED!!
If you convert it to bump start, it is a screamer!!
Consider using a nova Race pro head, or any other race head, as the original is a bit on the small side.
Rather good buy - i would recommend it - just look at the sparepart prices.
Anonymous
Saturday, Nov 17 2007 (about 16 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
I got a great tune out of this mill -but i could keep it from overheating (could not find an air leak?) and there customer service was just horrible! I wouldn't recommend this mill to anyone!
Anonymous
Sunday, Aug 26 2007 (about 16 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
I bought this engine for last two weeks ago.When i start this engine it was so cool and the tamp was only 101.4 .I put this engine in my **Hellfire SS**.After 6 tank i keep tuning this engine.Last week when i went to the park and i race wit one of my friend car Inferno GT and we were doing drag race.When i start hit the gas my car fly like a **Serpent 960** ! I was like WOW OMG WAT THE HELL! I'm so lucky that i got this engine with this price .....
Anonymous
Verified Owner
Wednesday, Aug 22 2007 (about 16 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
I knew this motor was going to be good from the get when it started on the first pull. I left the factory settings on it for break in (5 tanks). It seemed to run a little hot at first, but after it was broken in it cooled down nicely. Lots of low end torque and it really moves the car when it is opened up. I didn’t have to lean it out much to get some really good speed out of it. I put this motor in my buggy because the stock motor was craptastic (when it ran). There are 10 tanks through it so far (tuning and bashing) with no problems. Bottom line on the Axial .28RR spec 1... You can't beat it for the money!
Anonymous
Verified Owner
Thursday, Aug 2 2007 (about 16 years ago)
Axial .28RR Pro Off Road Competition Engine (Green)
I got this motor about 3 weeks ago now and i took my time breaking it in(almost 1/2 a gallon). after the break in this motor is a BEAST! You can not find a better motor for the price or even twice the price. an absolute best buy. You can not go wrong with it at all!!!!