OS CVR replacement piston and sleeve
12-03-2004, 02:29 PM
#17
Originally posted by jamiekulhanek
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
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
maybe ill buy this set and use the M-Speed cylinder and crankshaft
12-03-2004, 06:34 PM
#18
Tech Master
Originally posted by FUK_WRX
Hey dude as far as im concerned the CV and CVR have identical blocks i opened them up at work yesterday and they were the same
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.
Hey dude as far as im concerned the CV and CVR have identical blocks i opened them up at work yesterday and they were the same
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, 07:16 PM
#19
Originally posted by Bud
Well you said "correct me if i'm wrong" so ............ The blocks are not the same. Go to tower hobbies web site and bring up each engine's parts list and print them. Then you can compare them without having to flip back and forth. They look the same on the outside, but they're not the same.
Well you said "correct me if i'm wrong" so ............ The blocks are not the same. Go to tower hobbies web site and bring up each engine's parts list and print them. Then you can compare them without having to flip back and forth. They look the same on the outside, but they're not the same.
12-03-2004, 10:32 PM
#20
Tech Master
I don't know if they will or not. I know the crank and bearings are bigger in the cvr and os claims it is a completely different engine and nothing will interchange. I have found that the back plate (non pullstart) and the head will interchange. I think the carb will too. So I don't really know how much of the os propaganda to believe. might cost $20. bucks to find out.
12-03-2004, 11:10 PM
#21
Tech Adept
Originally posted by FUK_WRX
Hey dude thanks for this link i was just wondering if they are as durable as the original set? And i ca see and its obvious that its going to make the car faster maybe ill buy this set and use the M-Speed cylinder and crankshaft
Hey dude thanks for this link i was just wondering if they are as durable as the original set? And i ca see and its obvious that its going to make the car faster
maybe ill buy this set and use the M-Speed cylinder and crankshaft
All the hype seems to be just advertising....I personally have found nothing on them, no reviews or anything, i think KHB have sold very few of these. I'd also worry that the KHB graphite piston might throw the engine off balance.
Having said that, i have no right to give my opinion on a product i know nothing about, so go and buy one, then tell us how it is. As for durability, who knows, i'm sure KHB would be quick to tell you it will last 1000 gallons...
12-04-2004, 12:23 AM
#22
Originally posted by Bud
I don't know if they will or not. I know the crank and bearings are bigger in the cvr and os claims it is a completely different engine and nothing will interchange. I have found that the back plate (non pullstart) and the head will interchange. I think the carb will too. So I don't really know how much of the os propaganda to believe. might cost $20. bucks to find out.
I don't know if they will or not. I know the crank and bearings are bigger in the cvr and os claims it is a completely different engine and nothing will interchange. I have found that the back plate (non pullstart) and the head will interchange. I think the carb will too. So I don't really know how much of the os propaganda to believe. might cost $20. bucks to find out.
i think better buy the m speed stuff instead, thanks for your time.
12-04-2004, 12:26 AM
#23
Originally posted by jamiekulhanek
They LOOK fast, but i'm not sure if they are....
All the hype seems to be just advertising....I personally have found nothing on them, no reviews or anything, i think KHB have sold very few of these. I'd also worry that the KHB graphite piston might throw the engine off balance.
Having said that, i have no right to give my opinion on a product i know nothing about, so go and buy one, then tell us how it is. As for durability, who knows, i'm sure KHB would be quick to tell you it will last 1000 gallons...
They LOOK fast, but i'm not sure if they are....
All the hype seems to be just advertising....I personally have found nothing on them, no reviews or anything, i think KHB have sold very few of these. I'd also worry that the KHB graphite piston might throw the engine off balance.
Having said that, i have no right to give my opinion on a product i know nothing about, so go and buy one, then tell us how it is. As for durability, who knows, i'm sure KHB would be quick to tell you it will last 1000 gallons...
atleast the piston and liner from duratrax is nice and cheap
12-04-2004, 09:34 PM
#24
Tech Adept
Originally posted by FUK_WRX
I know i have not heard of them at all also, i think its a little too expensive to invest on if you dont know what the results would be atleast the piston and liner from duratrax is nice and cheap
I know i have not heard of them at all also, i think its a little too expensive to invest on if you dont know what the results would be
atleast the piston and liner from duratrax is nice and cheap
BTW The duratrax sleeves will not fit the CV-R, just the CV...
12-04-2004, 10:57 PM
#25
Originally posted by jamiekulhanek
If the carvings are different (forget their proper name) then they will most likely not line up with the ports and you have a CV-R with .000001hp, the porting on the CV is a fair bit different to the CV too.
BTW The duratrax sleeves will not fit the CV-R, just the CV...
If the carvings are different (forget their proper name) then they will most likely not line up with the ports and you have a CV-R with .000001hp, the porting on the CV is a fair bit different to the CV too.
BTW The duratrax sleeves will not fit the CV-R, just the CV...
i wonder what OS and M-Speed use as heat treatment? What do they spray on it? Can it be purchased on our local hardware?
12-05-2004, 01:40 AM
#28
Tech Adept
Re: Have look
Originally posted by FUK_WRX
See how the case is black what is that suff? Im planning to dfo the same on my new CVR
See how the case is black what is that suff? Im planning to dfo the same on my new CVR
Uh, my guess is some sort of powdercoat/matte spray, but i always thought these coatings reduced thermal efficiency...
12-05-2004, 01:41 AM
#29
Tech Adept
BTW FUK WRX, i'm approx 1200km south of you...
12-05-2004, 02:38 AM
#30
Re: Re: Have look
Originally posted by jamiekulhanek
Uh, my guess is some sort of powdercoat/matte spray, but i always thought these coatings reduced thermal efficiency...
Uh, my guess is some sort of powdercoat/matte spray, but i always thought these coatings reduced thermal efficiency...
your an offroad racer ehh about the black coating i doubt it reduces efficency because its been used on the new OS engine like the TR series
and MSPEED do them also to all there motors