should have went with a GO GX!

Sounds like you are very happy with the motor but the looks of the piston? High silicon content aluminum looks like that although yours does look a little different. They could have used a cheaper aluminum like Os does and you would need to have it pinched more often. ( I pinch motors) Just put it together and run it, if there was something wrong with the pston it would have lost pinch by now.
Or you could listen to Deadmancourt, can you tell he sells Go motors?

Rex

anyways MR ALPHA!...:lol:...dont be mad cause people are selling there ALPHAS to buy these GO based engines!:nod:....

Use some metal polish and be done with it ;) Experienced that with a Nova before. Not a problem. You may want to polish the button head as well (or burn room, whatever u call it).

Cheers

I am happy with the motors performance, but highly concerned with the pistion, I've had 3 OS motors, several Nova's and Werks ,and never saw this before, so I'm not sure what to make out of it, manufacter doesn't seemed to be concerned, so buyers beware.

they are using a new material/aluminum for the piston, my caster motors were the same and my pr21c is the same with eb fuel run through it. no worries, my grenades lasted many gallons even after having filters fall off, bearings explode and cases cracking.

Buyer beware???????? Is that really a fair statement when you have no issues other than you dont think the parts are marked up enough? The parts look to be clean as new from what I see. Put it back together and run it till you have problems then we'll discuss it, mine looks exactly the same after two and a half gallons. :nod:

yeah, if you go to amain you can see all the go based engines pics of the p/s/r and all the pistons have it, its the new harder aluminum. looks like the reedy and some of the new rb's have it too... buyer beware, lets be fair.

Well all this talk got me curious so I took my D5 apart and everything looked fine. Besides the carbon build up everything looked great it this mill has over 3 gallons, I'm not gonna worry unless motor has problems.
http://i204.photobucket.com/albums/b...911_080329.jpg
http://i204.photobucket.com/albums/b...911_081112.jpg

First you should check your facts. It is not 70.00 for a carb. If you indeed need to replace the carb it is 34.99 one of the lowest prices on the maket here is a link! http://www.amainhobbies.com/product_...ete-Carburetor


Also you should read or know more before you comment. We also offer an optional needle set if you would like it to tune more like a Nova style motor and again it is not 70.00 but 13.99 Here is the link for that if you need it. http://www.amainhobbies.com/product_...dle-Tuning-Set

Thanks for you comments

Don,

I feel this a very unfair thing to say about my company. Why dont I post all the emails were we have done are very best to help you and how you have clamed this is one of the best engines you have ran and can not belever the price. That is just a sum of all the email he has sent.
"
First let me say this. "HIS ENGINE RUNS AWESOME AND HAS NO ISSUES with it running" that would warrent us sending him a replacement part. He has demanded a new piston and sleeve because he dosnt like the way it looks.

These are race engines and we do the very best we can to keep EVERY CUSTOMER happy. But if we replaced every part every time someone said "Hey it runs awesome but I dont like the way the smoke smells or I dont like the look of the color on the head." As most of you know this guy is not the first to see this in any brand motor including NOVA and OS. It is not a preformance issue. Now if he would have had a Rod Bushing Crack during breakin then it would not have been an issue.

BUT EVERYONE KNOWS ------ THESE ARE RACE ENGINES--------- No one knows what happens to any of these engines once they leave the store they are purchased from. I have seen people do this here with EVERY BRAND including Novarossi.

I am glad most people here are smart enough to see through this for what it is. A guy with a brand he has never seen before woried for no reason.

One other think I would like to point out about the picutres. The piston/sleeve in both looks to be dry. I dont know about any of you but I never let my sleeve or piston run dry for any amount of time after a cleaning!

Just so everyone can see it is not an issue
 

Here you go Don..... Look through the ports on the sleeve and you will see it is just like yours.

http://c0456141.cdn.cloudfiles.racks...m/ebm21001.jpg

If you would like a bigger pic go to the link below and click on the picture and you will see it real good!

http://www.amainhobbies.com/product_...d-Set-Full-Mod

If you are reading this thread and own one of these or are thinking about it do not be alarmed as this is not an issue. The person who started the discussion is obviously mad just because Ascendancy will not give him a free psr kit. Let me assure you that if you have a actual problem with your engine Ascendancy WILL stand behind you!

Wow
 

Lets blow this out of control guys, first Brian, I did not demand a replacement, second, if really didn't like Ac racing, I'd tear my new clutch out and toss it, remove them form my signature. I've never bashed the performance of the motor, its great, and when I first contacted Ac, PR I didn't get any type of reason or explanation for this. Its amazing the PM I got, just opinions, and if Jason would have told me that its a new material etc then thats fine, but Jason don't you remember telling me that you had your 3 motors apart and none of them look like this? This is why I thought this is an isolated insident.
Again I am not disappionted with the performance of the motor, and now that others have pointed out what it is, and the link (thanks Jason) this could have been resolved, but I had to go online to get the answer.