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Old 04-28-2011, 03:59 AM   #166
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I'm in Victoria, Australia and need to know where I can get replacement parts like conrods, cylinder/piston assy, main bearings etc

Nearly time to do the first rod and would like to get piston/liner and main bearings etc while I'm gettin the rod for later

Love the .12ZX and so does the 733
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Old 04-28-2011, 03:27 PM   #167
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Default os speed 12zx

Race this motor last weekend at Kraceway with maxpower pipe an header. Motor super fast,crazy bottomend to mid power ,topend was on the money reved like the picco an still pulling hard on the top.20sec shy on a 5min qualifier, ran it alittle as the engine is still new.The gearing i ran on the Km Hk1 17/60 23/54.Also used an Ins box.If may add, ran the motor on 16% Kosmic fuel.
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Old 04-29-2011, 09:53 AM   #168
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Race this motor last weekend at Kraceway with maxpower pipe an header. Motor super fast,crazy bottomend to mid power ,topend was on the money reved like the picco an still pulling hard on the top.20sec shy on a 5min qualifier, ran it alittle as the engine is still new.The gearing i ran on the Km Hk1 17/60 23/54.Also used an Ins box.
Glad to see you had much success with this engine. I got one when it first came out and I was amazed at how stupidly fast it was. Mine is in my Mugen MTX4 and most of the time run like a scalded dog at temps between 195 and 220. Mine has only been above that temp five times due to my car either being stuck in second gear of stripping out second and only running first gear during a qualifier.
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Old 05-16-2011, 03:19 PM   #169
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Thumbs up OS Speedm 12XZ another great weekend

The engine was definitely fast this weekend no issues at all.It powered my KM HK1 to 5th place finish in the A-main this weekend at our SoarGrapes race here at our Fort Meyers track home of the Winternats.
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Old 05-16-2011, 04:35 PM   #170
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The engine was definitely fast this weekend no issues at all.It powered my KM HK1 to 5th place finish in the A-main this weekend at our SoarGrapes race here at our Fort Meyers track home of the Winternats.
Just think: If you had a good car and engine you might have won!!!

Just messing with you Bobby!! Hopefully I will get to race with you this year.. Maybe the GLC or the Nats?? Head to Timezone!!!
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Old 05-17-2011, 03:24 PM   #171
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Default Sup Scott

The Nats definitely, i will make that one.
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Old 06-20-2011, 12:50 AM   #172
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Hi,does anyone know how many head shims & thickness was installed when it come from factory?thanks.....
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Old 06-20-2011, 09:15 AM   #173
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Hi,does anyone know how many head shims & thickness was installed when it come from factory?thanks.....
1 .2 and 1 .1, total .3 for 30 nitro%
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Old 06-22-2011, 08:20 PM   #174
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Default Speed XZ vs Speed XZ Spec2 differences.

Hi,

I see the 'Spec2' version of the XZ has a different P/N for the Head button, crank and the crankcase, just wondering what changes were made to these parts compared to the 'XZ Speed'?

Looks like the 'XZ Speed' was only on the market for 5 or 6 months before the revision, why? Was it a runtime or power thing?

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Old 10-14-2011, 09:27 PM   #175
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Originally Posted by EEL Monster View Post
I'm in Victoria, Australia and need to know where I can get replacement parts like conrods, cylinder/piston assy, main bearings etc

Nearly time to do the first rod and would like to get piston/liner and main bearings etc while I'm gettin the rod for later

Love the .12ZX and so does the 733
hi just wondering if you were able to get the parts in australia and where and how much?
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Old 10-26-2011, 12:40 PM   #176
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hey...

I recived this engine yesterday, and i was wondering, if i should leave the shims like they are or if i sould remove one?

I will run it with 16%.

Thanks!
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Old 10-26-2011, 03:04 PM   #177
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hey...

I recived this engine yesterday, and i was wondering, if i should leave the shims like they are or if i sould remove one?

I will run it with 16%.

Thanks!
remove the .1 shim
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Old 12-13-2011, 09:49 AM   #178
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Can anyone tell me the differents of the normal XZ,XZ Speed and XZ Speed Spec2 button head,the look the same but got different parts number.Is there any differents in performance or dimension? Thanks.
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Old 12-13-2011, 02:15 PM   #179
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Can anyone tell me the differents of the normal XZ,XZ Speed and XZ Speed Spec2 button head,the look the same but got different parts number.Is there any differents in performance or dimension? Thanks.
Mr Barry aka Boy melaka, the difference is the shimbo....cheers mate
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Old 02-19-2012, 10:37 PM   #180
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Default exhaust?

hi can anyone tell me if an exhaust and header made by novarossi for a 12 engine will fit the 12xz and the tg looking to run in both touring and pro later, are the exhausts and headers interchangable between brands. if so could you please recomend a set. the novarossi sets seem cheap if they fit. thanks for any help mike.
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