OS CVR replacement piston and sleeve
12-02-2004 | 03:35 AM
#1
OS CVR replacement piston and sleeve
Hello guys, my OS CVR is due for a rebuild i am looking towards two alternatives replacing it with the duratrax piston and cylinder assembly or the dynamite assembly.
Are the piston and cylinder above better than the original OS CVR units? Any other suggestions apart from replacing motors.
Are the piston and cylinder above better than the original OS CVR units? Any other suggestions apart from replacing motors.
12-02-2004 | 08:56 AM
#6
first off i hope you mean os 12cv, not cv-r. nobody makes a set for the cv-r but os......i've never seen the dynamite piston set.. you sure it exists? i know duratrax makes one and it is fine.... especially for $20
12-02-2004 | 11:23 AM
#8
Tech Adept
Joined: Oct 2004
Posts: 136
From: Boregon, USA
I don't think Duratrax makes one for the CV-R, just the CV.
Also you'll find a mixed response on these sets. I personally have used two sets and find it a VERY good alternative for $20 as opposed to the OEM from OS for ($89 was it? $69?) Never had problems . . . . .
Problems like (I've heard) the chrome plating chipping off in a short time. Problems like them losing compression very quickly. Many also claim the tolerances are poor and not good enough for racing.
Like I said I've used them twice, most recently on my wife's OS and the compression came back nice and strong and it runs well.
Also you'll find a mixed response on these sets. I personally have used two sets and find it a VERY good alternative for $20 as opposed to the OEM from OS for ($89 was it? $69?) Never had problems . . . . .
Problems like (I've heard) the chrome plating chipping off in a short time. Problems like them losing compression very quickly. Many also claim the tolerances are poor and not good enough for racing.
Like I said I've used them twice, most recently on my wife's OS and the compression came back nice and strong and it runs well.
12-02-2004 | 01:23 PM
#9
Re: OS CVR replacement piston and sleeve
Originally posted by FUK_WRX
Hello guys, my OS CVR is due for a rebuild i am looking towards two alternatives replacing it with the duratrax piston and cylinder assembly or the dynamite assembly.
Are the piston and cylinder above better than the original OS CVR units? Any other suggestions apart from replacing motors.
Hello guys, my OS CVR is due for a rebuild i am looking towards two alternatives replacing it with the duratrax piston and cylinder assembly or the dynamite assembly.
Are the piston and cylinder above better than the original OS CVR units? Any other suggestions apart from replacing motors.
Hey FUK_WRX,
Email me please, tried to email u a while ago but email came back!
Anyway about your CVR get an mspeed piston liner set and conrod from Christian.
(I told u nitro is better
)
12-02-2004 | 03:50 PM
#11
Not sure about website but this place here in australia sells them http://www.racefactoryrcp.com/.
They should be able to give u a web site if mspeed have one.
They should be able to give u a web site if mspeed have one.
12-02-2004 | 10:25 PM
#13
Tech Adept
Joined: Mar 2004
Posts: 167
From: Australia
Hey, KHB makes some piston/liners for the O.S. .12 CV-R and .15 CV-R. Either graphite or copper piston and silver sleeve, no idea what difference the graphite will make...Probably cause bad balance.
Take a look:
http://www2.towerhobbies.com/cgi-bin...?&I=LXGRN4&P=7
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGRN7
Lucky me, duratrax make a true ABC sleeve/piston kit for my .12 CV for just $19.99, the bearing replacements are also 1/4 the cost
Take a look:
http://www2.towerhobbies.com/cgi-bin...?&I=LXGRN4&P=7
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXGRN7
Lucky me, duratrax make a true ABC sleeve/piston kit for my .12 CV for just $19.99, the bearing replacements are also 1/4 the cost
12-03-2004 | 02:10 PM
#14
Originally posted by tallyrc
first off i hope you mean os 12cv, not cv-r. nobody makes a set for the cv-r but os......i've never seen the dynamite piston set.. you sure it exists? i know duratrax makes one and it is fine.... especially for $20
first off i hope you mean os 12cv, not cv-r. nobody makes a set for the cv-r but os......i've never seen the dynamite piston set.. you sure it exists? i know duratrax makes one and it is fine.... especially for $20
only the CVR had diffrent shaped carvings on the cylinder correct me if im wrong....
So does the duratrax one better than the original O.S.
12-03-2004 | 02:20 PM
#15
Re: Re: OS CVR replacement piston and sleeve
Originally posted by shiston
Hey FUK_WRX,
Email me please, tried to email u a while ago but email came back!
Anyway about your CVR get an mspeed piston liner set and conrod from Christian.
(I told u nitro is better )
Hey FUK_WRX,
Email me please, tried to email u a while ago but email came back!
Anyway about your CVR get an mspeed piston liner set and conrod from Christian.
(I told u nitro is better
)
whats going on? email me at [email protected] just having a break with electric but i will be racing both in the summer nats in canberra. Regarding the M-Speed stuff christian is lending me his full house M-Speed OS CVR
i heard this thing is a JP sniper 
i guess itwould be paying that much for a engine. Im doing a hybrid for my NTC3 here a peek but mate so far so goood specially the trak results