OS Speed 12XZ engine ~~FULL PHOTO~~
02-18-2009, 04:03 AM
#31
Tech Adept
02-22-2009, 04:18 PM
#32
os speed engine
I just want to let everyone know that os speed is by far the best motor i ever used. I know they are expensive, but they actually improve my lap time! I got the Vspec II, and this week i made another personal best lap time. I am sure 12 XZ won't disappoint anyone 
02-23-2009, 03:36 AM
#33
Tech Adept
i had my try on the engine on saturday for the final tune after the brake in method and the only thing i have to say is ...AWESOME!!!Compared with the 353 tuned had more botttom and the same top end..the difference?it costs about 150$ less!!!!!
02-23-2009, 05:30 AM
#34
02-23-2009, 08:34 AM
#35
02-23-2009, 09:21 AM
#36
True but I have seen several to quickly broken 12TZ engines. If the lifespan of the XZ is comparable with others then it is a good deal.
I just wanted to notice that there is more making the total costs than only the price of buying it. Cheap engines is what we all want but if they are unreliable it will cost you points at the races and on long term more money. Not saying the XZ is unreliable but knowing the TZ I would just wait and see.
I just wanted to notice that there is more making the total costs than only the price of buying it. Cheap engines is what we all want but if they are unreliable it will cost you points at the races and on long term more money. Not saying the XZ is unreliable but knowing the TZ I would just wait and see.
02-24-2009, 12:06 PM
#37
Tech Adept
the new engine has almost the same parts and is made of the same materials except for some differences in the crancshaft , the carburater , the piston and sleeve etc but the materials seem the same...the difference is that the case is much stronger and durable and this is the reason why the engine weights about 30 grams heavier than spec 2...
so according to the theory thing the XZ should be even more durable than spec2
these make us a good value engine.....till now i have only used the engine for about 3 litres.... time will show
Moreover , have a look in the NOVAROSSI thread to see a new engine "353 tuned" destroyed because of gap between the conrod and the crancshaft...so i don't think that "if you pay more you play more"...the engines are made of metals and noone can predict when the "bad moment" comes!this is the reason why none of the engines caome with a kind of guarantee or something...no guarantee for anyone!
02-24-2009, 01:15 PM
#38
True, the splitting C7 rod from Novarossi is a certain serial production related problem and the customer does pay the price. Could be anything from bad tolerances in the production up to different suppliers for the materials and all manufacturers can have such problems. I can only say the broken rods from OS seems to be related to large high speed tracks where the rod does get more stress due the high revs for a longer time because the long straight end.
Do not say there is no waranty, within Europe we have consumer laws. Any normal commercial available product must have some kind of waranty and because these engines can be bought anywhere like toyshops they do have warranty. It is only to sad that many shops deny warantyclaims.
But we will see how the engine performs and lives. I have seen RickV with the Ninja version and it screams, I am still waiting for the the new .21 engine, they were presented very well on the WC in Argentina but until now 1.5 year further still nothing....
Do not say there is no waranty, within Europe we have consumer laws. Any normal commercial available product must have some kind of waranty and because these engines can be bought anywhere like toyshops they do have warranty. It is only to sad that many shops deny warantyclaims.
But we will see how the engine performs and lives. I have seen RickV with the Ninja version and it screams, I am still waiting for the the new .21 engine, they were presented very well on the WC in Argentina but until now 1.5 year further still nothing....
03-04-2009, 10:58 PM
#39
rc-mushroom.com/product_info.php?cPath=169&products_id=16430
03-19-2009, 03:38 PM
#43
Don't mean to hijack this thread. Can someone share his experience of Speed 12 XZ?
03-31-2009, 01:06 PM
#45
Tech Apprentice
other news???????????
best pipe????
gearing?????
i break in my xz saturday
if sun appears
best pipe????
gearing?????
i break in my xz saturday
if sun appears