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O.S. Engine Speed R2101For those of you looking for truly big power on-road, O.S. Engine has announced their new R2101. The R2101 is a .21 cubic inch nitro burner that should put some serious power into your 1/8th scale on-road machine. It features a DLC coated crank with pressed in weights, a 7+3 port design, and is based off the legendary 21XZ-R.

* Weight- 11.99 oz
* Bore- 0.633″
* Stroke- 0.677″
* Practical RPM- 4,000-45,000
* Output- 2.7 hp @ 33,000 rpm

The R2101 has a part number of #OSMG2043, a street price of $499, and it is expected to hit hobby shops later this month. Hit up This Link for more information over on the O.S. website.

Click Here to read even more O.S. news right here on BigSquidRC.

O.S. 21XZ-B V2 ABC
For racers & bashers looking for big nitro power at a lower price, O.S. Engines have announced the O.S. 21XZ-B V2. The 21XZ-B V2 is lighter, lower and cooler running than before, yet still produces the kind of power you expect from a top shelf engine. Some of its features include-

* Holes in cylinder head to save weight
* Same piston, rod, and liner as the Speed version
* 22B2 single needle carb
* Comes with 7mm carb reducer
* Silicone filled crank with tungsten counter weights

The O.S. 21XZ-B VII has a part number of #OSMG2053, a street price of $319, and they are slated for a late March release date.

Get more OS Engine news at This Link on BigSquidRC.

HPI V2 Nitro Star F3.5
Ten years ago was right before the “electric revolution” when brushless and Lipo power went mainstream with the rc crowd. Nitro fumes filled the air nearly everywhere you went back in those days. Now days bash spots are a lot quieter, but there are still plenty of hardcore nitro bashers out there.

The crew over at HPI Racing have just announced some updated nitro engines for your bash machine. They have now added a V2 Nitro Star F3.5 and V2 Nitro Star F4.6 to their vast product line-up.

The V2 F3.5 gets a new heatsink and crankcase. The larger heatsink improves cooling while the new crankcase shaves off about 22 grams of weight. It also comes with a new pullstart featuring a large 14mm hex for better durability.

The V2 F4.6 also comes with the new pullstart, a new crankcase and larger heatsink for improved cooling. The new crankcase shaves 37 grams off its weight and is 12mm shorter.

The part number for the HPI F3.5 V2 is #111600, while the part number for F4.6 V2 is #111595. No word on pricing or availability quite yet.

Want to catch up on more HPI news? If so, hit THIS LINK right here on BigSquidRC.

FX Royal Racing Engines
There is a new nitro engine company on the scene and it is called FX Royal Racing Engines. The man behind the company is Juraj Hudy who is best known for his work at X-Ray. FX Engines will be producing product targeted at the uber high end competition scene, but we know plenty of bashers who only buy “the best” and FX should be one of those types of companies. To check out the new FX Engines website Click HERE.

Are you a big fan of X-Ray? Check out more X-Ray news at THIS LINK right here on BigSquidRC.

BZM Micro was showing off their new 23cc engine for the Baja 5 line at RCX.  This beast is an all new design, not just a bulked up Fuelie or Zenoah.  While this guy may be smaller than a lot of other after-market engines, it’s numbers are anything but.  According to BZM’s dyno testing, when this engine is paired to a Dominator exhaust it can put out over 6 HP at just shy of 15,000 rpm and a peak torque output of 2.54 ft/lbs @ a hair over 12,000 rpm.  That’s a ton of power from a small package.

The 23cc version of this engine will be available very soon through TGN Distributing in the states and MMR Largescale over in Europe, and there’s promise of 26cc and 28.5cc varieties coming later.  Check out the BZM Micro website for more info. Also there’s a video of the dyno test, click the read more button to see it.

More RC Expo 2011 news here.

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Axial is expanding it’s RR line of budget nitro engines for bashers and weekend warriors.  Their new .21RR-1 engine is Axial’s first .21 size engine for 1/8 scale buggies and totally fricken awesome 1/10 scale cars and trucks.  But being for bashers doesn’t mean that they took any shortcuts in it’s design.  It’s got that fancy ABC construction, a 7-port design, a two needle carb with swappable venturis, and a balanced crankshaft.

MSRP for the .21RR-1 is going to be $290.00.  It should be hitting hobby shop shelves very soon.  All the info on this engine should be on Axial’s web site as soon as they update it.

RC Pro Products wants you to throw your old engine in the trash and buy one of their new engines designed for your RTR 1/8 scale buggy or truggy.  The new Alpha Plus RTR line of engines starts with a .21 size for the buggy drivers and a .28 size for truggies.  Both feature a smartly designed pull-start mechanism that disengages from the crankshaft when it’s not being tugged.  They also come with the same carb that is featured on the high-end F850 racing engine.  The Alpha RTRs are 3 port engines and have 9-fin cooling heads.

These aluminum fire-breathers will be hitting store shelves next month some time at a very reasonable MSRP of $125.  Head on over to the RC Pro Products website for more details.

O.S. is ready to put another engine on the shelf for you to buy.  The .21 XZ-B Speed has all kinds of new features on it.  The fuel efficiency of this engine has been improved by 8% over the non-speed version .21 XZ-B.  The cylinder head had been made 9mm shorter than the .21VZ-B Speed, the center of gravity has been lowered, and it comes with the new 21J2(B) three needle, double adjust carb, ceramic crankcase bearings, and a P3 glow plug.

Retail for this hunk of black metal is going to be $749.99 and it should be hitting shelves very soon, if it’s not already there.

Check out the O.S. Engines web site for all the details.

There’s a new engine on the market thanks to the fine folks at LRP.  The ZR.21X Spec.2 is a competition grade engine made for 1/8 scale buggies.  It has a rear exhaust, a high-end WorksTeam 14SV-2 carburetor with interchangeable venturis, and a redesigned cooling head.  According to LRP this engine is capable of putting out 2.78HP and can run a max of 35,900 rpm.

Check out the LRP web site for more info.

Axial’s got a new .28 size nitro engine that may help satisfy all your big block desires.  The new Spec 2s is a big engine that you’ll be able to stuff into any .21 size engine mount for an instant power boost.  This thing can be spun up to a max of 37,500 RPM.  Some other features are an easy to adjust three needle slide carb, an oversized heat-sink head, and a selection of venturis in 8.0, 8.5, and 9.0mm sizes.  It also comes with a pull starter that can be swapped out for most aftermarket shaft start systems.  You’re going to be looking at somewhere around 2 bills for this bad boy, and it should be on store shelves soon.

Check out Axial’s site for all the details.

I recently got the chance to pick up the new HB28503 .26 motor from Hot Bodies and give it a good working over! In all the pictures, the HB28503 is on the left. The previous .26 from Hot Bodies is on the right with the purple head. I have owned several Hot Bodies cars, and a few of them have come with their previous .26, which was pretty decent for being the stock motor.

One of the first things I noticed after opening up the box (besides the lack of a purple cooling head) was the lack of a midrange needle screw! I have to admit, I was happy about this. I have never been the best motor tuner, and the less settings for me to mess up the better! Other then the midrange screw and color, the engines looks pretty similar.

This new motor is supposed to be good for off-road use. It’s got 4 ports, top rpm’s of around 29000 and hopefully a lot of torque! I have been really happy with my Hot Bodies Lightning 2RR buggy, so I decided to reward it with the new motor. The old motor was still running pretty good, and I have abused it to the best of my abilities, but it was time for a change.

The motor replacement went as smooth as could be expected, and I didn’t have to make to many adjustments to get the HB28503 ready for break-in. I used 20% O’Donnells fuel. I was familiar with how well the old motor ran on this fuel, and wanted to be able to get a feeling for what the differences might be from the new motor. To my delight the motor fired right up! I love the Jump Start! The break-in went very smooth, and the motor was sounding great.

After the break in, it was time to open it up and see what this new motor could do! I was very pleased with the acceleration, and the top speed looked a bit faster as well! I was easily in the 40+ mph range, and the motor was keeping a decent temperature as I bashed it around the parking lot. I had Neil bring out his racing buggy. I won’t say the name, but it wasn’t cheap and has a lot of 7′s in the name. It’s also got a pretty expensive racing motor in it. We set up a little course with a nice long straightaway to really get the speeds up. Lap after lap we were neck and neck. To see his buggy take the last turn and open it up, and to see my Lightning Buggy with it’s new motor right there next to him brought a pretty big smile to my face. This new .26 is good and fast!

I recently brought the buggy to the new indoor off-road track we have here. The track is huge, with an insane amount of jumps as well as two huge straight-aways! After getting used to the track layout, I was able to hold my own very well against any of the other buggies out there. The acceleration from the new motor was great for getting me over the big jumps when I needed it, and the top speed in the straights kept me right there next to the big guys and their expensive racers! If you are in the market for a new motor, and you are not looking to drop a ton of money on it, check into getting the new HB28503 .26 motor from Hot Bodies. I have been really happy with its performance. It’s been holding a tune great, and it won’t break your bank!

Summary
Time to Bash 8.5/10 – Full motor change, but it went very smooth.
Workability 9/10 – The motor has been easy to tune, and holds the tune well.
Car Show Rating 7/10 – Nothing flashy here, just a regular looking motor.
Bash-A-Bility 9.5/10 – So far it’s held up to the abuse great! It’s fast, and it can handle my lack of tuning skills! :)
Big Squid Rating 9/10 – Tentacles. This is really a good motor. I have had no trouble with it, and it brings a smile to my face every time I pull the trigger!