Got one yesterday.

Need to pre heat the engine before break in with a hair dryer.
Be patience when during this period. Pinch is very hard.

After the breaking, the engine rocks. So much power and hold tune.

I am getting another one. Simply awesome.

Thumbs up !

How much fuel did you run through it to break the inital pinch
and before you dialed in the final race tune in on the engine ?

There link doesn't work for the video

Mine took about 3/4-1gal. runs awesome. now waiting for my new buggy to get here. sucks just looking at sit there.lol

rageworks, close to what stallen mentioned.

fantastic engine. very consistent and good quality. the engine seems very similar to os double world champion engine. the vspec but not a speed. it would even better to have epoxy filled and balance crank.

read the review here and decided to have a go and I wasn't dissappointed at all.

3 of Top 4 after qualifying at the $10,000 Payout race in AL are Hobby Pro USA Team Drivers:
Pro Buggy
1. Jason Branham - Agama/OS/Beta Cubez
2. Ryan Lopez - Losi/Arrow GTR-21
3. Billy Easton - Serpent/Proline/Nova
4. Corey Johnson - Agama/Arrow GTR-21/JC

I'm glad to hear that you guys are taking the time to run some fuel
through these engines before you hammer them too hard.

The Speed version of the short-stroke crank is the most expensive part of a Speed... but also where the biggest power gain comes from. Most of the power comes from enlarged crank opening and the ramping on the back.

Correct me if I'm wrong, but Arrow fixed the biggest problem with the standard VSpec and got rid of the oiling hole on the crank pin and moved it to the rod instead (like on the Speed version). Helps with crank pin wear (minus DLC).

Assuming the crankcase exhaust port is identical, the one thing I think Arrow could do is start using a Speed VZB version sleeve. There's no extra work (meaning, no extra production cost... just initial setup costs)... it's simply altering the exhaust port shape. The improved exhaust cutout on the Speed sleeve helps a lot with mileage too.

yes they did move the oiling hole to the rod. and the pinch and compression last way longer than the old vspecs did. from would i heard. mine is still pretty new

hi , does "Arrow Racing" himself pop onto this thread... ive been trying to get intouch since im looking to import somthing thats got the +ive feebback and quality.. these looks really sweet!

any help would be appreciated

what shops carry arrow engines??

In US, any vendor who has Hobby Pro account. In Euro, with Dark. Don't think there's any dist. in Australia. Don't know if either one can ship to you.

http://dark-products.de/xtcommerce/

http://vp-pro-usa.com/engines/arrow.html

Agree with Rsickles and Stallen50.
It is an improvised of the V-spec engine ( Part of Speed and V-spec )
I am actually a fan of the V-spec and doesn't like the X-spec so much.

Spot on and more power too. Nevertheless, the stock arrow already plentiful. If Arrow have another version of the mentioned, then we would have Arrow Speed

The V-spec is the fiercest engine for almost 1/2 decade until OS stopped production and comes the Novarossi Plus 4 which dubbed as the OS killer. But lack the the low end response of the V-spec. Nevertheless, I am happy with the Arrow now. It's like the good old days. My 2cents.

Driveline Rc are the sole importer for Australia - http://drivelinerc.com/

aha yeah i stumbled uppon Driveline RC today through "Blooved" , good to see their coming to OZ but when?? and will they be available direct from the importer until they start being available in shops in QLD , NSW etc... no contact info on the page as of yet so its hard to know whats happening..

I have V-spec internals and OS carb will they work with an Arrow case.