O.S. SPEED Tuned 21XZ-R
#121
Ok here is what i have to say about the New speed engine. IT IS A BULLET! there is that much top end power i had to even gear it with a 21/47 i could of even gone a 50 tooth on the first gear. Used a combination of picco pipes and nova and found the 2015 with the short header was the best choice on this particular track. The motor would either catch,pass OR pull away from the other motors in my heat. The motor idled perfect from the start of the event. We only had one issue with it and that was it flamed out once during practice checked the plug and inside internal and everything was ok. After that not one issue. I ran the motor on the same rod from run in. Engine is awesome.i could not believe my eyes when i passed the latest max TQ 9port down the straight lol. Guys if you clutch the engine right and right pipe you will be there with any engine.
Enjoy guys.
Alex
Enjoy guys.
Alex
#122
Tech Adept
Hey guys,
I just bought my new .21 xz-r and I have some glowplugs p8(71641800)
will they work or should I purchase the rp7 ones?
Thanks
I just bought my new .21 xz-r and I have some glowplugs p8(71641800)
will they work or should I purchase the rp7 ones?
Thanks
#123
Here in Singapore, we run RP7. Hot and humid. RP8 takes a longer time to warm up. Better high end rev's....
#124
Tech Adept
#125
Tech Addict
engine blow up
Extemely care with this engine, extremely fragile!!!!
My engine blew up yesterday, the piston all broke in pieces. Not only mine, my fd's Speed 21 got the same problem. The piston material sucks!!! The average engine temp around 90C something and internally moist enough, still broken. RIP!
My engine blew up yesterday, the piston all broke in pieces. Not only mine, my fd's Speed 21 got the same problem. The piston material sucks!!! The average engine temp around 90C something and internally moist enough, still broken. RIP!
#126
pics pls from all the parts.
#127
Tech Elite
iTrader: (52)
Extemely care with this engine, extremely fragile!!!!
My engine blew up yesterday, the piston all broke in pieces. Not only mine, my fd's Speed 21 got the same problem. The piston material sucks!!! The average engine temp around 90C something and internally moist enough, still broken. RIP!
My engine blew up yesterday, the piston all broke in pieces. Not only mine, my fd's Speed 21 got the same problem. The piston material sucks!!! The average engine temp around 90C something and internally moist enough, still broken. RIP!
How old was yours, when was the rod changed, etc etc..
#128
Extemely care with this engine, extremely fragile!!!!
My engine blew up yesterday, the piston all broke in pieces. Not only mine, my fd's Speed 21 got the same problem. The piston material sucks!!! The average engine temp around 90C something and internally moist enough, still broken. RIP!
My engine blew up yesterday, the piston all broke in pieces. Not only mine, my fd's Speed 21 got the same problem. The piston material sucks!!! The average engine temp around 90C something and internally moist enough, still broken. RIP!
#129
Tech Addict
#130
Tech Addict
#131
Tech Addict
#132
Did the rod break also ?
Alex
ps sorry for the bad luck mate..
#133
Hi, can someone share with me what is the spur n pinion that you guys used for this engine with serpent 966?
Thanks!
Thanks!