JDMCRX
TY 4 Stroke Junkie
- Joined
- Dec 13, 2005
- Messages
- 655
- Reaction score
- 1
- Points
- 873
- Location
- OTTAWA, ONTARIO CANDADA
- Website
- www.jbauto.ca
Hey guys im gonna open up the motor this year and im replacing the stock rods with corilo rods and im looking at some wiseco 13:1 pistons and some light head work.
post what ya got
post what ya got
Mark O
Expert
JDMCRX said:Who has cams or pistons in there RX-1 motor?
Mine came with both; 2 cams & 4 pistons. Actually, I think that I would be safe to say that 100% of the people here do as well.

shanksRX-1
Expert
- Joined
- Feb 6, 2006
- Messages
- 395
- Reaction score
- 25
- Points
- 928
- Location
- Pennellville, NY
- Country
- USA
- Snowmobile
- 2010 Apex
- LOCATION
- Pennellville, NY
Mark O said:JDMCRX said:Who has cams or pistons in there RX-1 motor?
Mine came with both; 2 cams & 4 pistons. Actually, I think that I would be safe to say that 100% of the people here do as well.![]()
lol... Im pretty sure he means aftermarket cams or pistons... Mine is all stock but im interested in seeing what anyone else has done and what it did for their ride...
black john
TY 4 Stroke Guru
camx
i have dyno rays cams and .010 head gasket.
i have dyno rays cams and .010 head gasket.

doo_man
Expert
I want to do the same but want results. Is there any gains to just cams, or do you need to do the porting too to notice any real difference?
Skydog
TY 4 Stroke God
Turbo!!!!!!!!!!!!!!!!!!!!!!!! And be DONE!!
- Joined
- Apr 17, 2003
- Messages
- 5,529
- Reaction score
- 1,393
- Points
- 2,003
- Location
- Menno, SD
- Website
- www.ulmerracing.com
- Country
- USA
- Snowmobile
- 2014 Yamaha SR Viper LTX, 2014 Yamaha SR Viper RTX SE, 2015 Yamaha SR Viper MTX SE 162 (turbo), 2015 Yamaha SR Viper MTX SE 153
- LOCATION
- Menno, SD
- WEBSITE
- www.ulmerracing.com
You need the porting to go along with the cams to really see a difference with the kits available at this point and time.
anyone try mototune style of porting on this engine and tried it on a dyno?
JDMCRX
TY 4 Stroke Junkie
- Joined
- Dec 13, 2005
- Messages
- 655
- Reaction score
- 1
- Points
- 873
- Location
- OTTAWA, ONTARIO CANDADA
- Website
- www.jbauto.ca
I have a turbo kit almost done GT28RS all the parts. but this year would like to stay NA next year Ill boost it.
Anyone else with cams and compression
Anyone else with cams and compression
black john
TY 4 Stroke Guru
cam,s
i did not do any porting and i see a huge differce. it,s unbelvable the differnce.

i did not do any porting and i see a huge differce. it,s unbelvable the differnce.

suprfst
Lifetime Member
- Joined
- Dec 4, 2004
- Messages
- 727
- Reaction score
- 8
- Points
- 973
- Location
- Tawas Michigan
- Website
- www.smcfabrication.com
BETHEVIPER said:anyone try mototune style of porting on this engine and tried it on a dyno?
I havent seen the mototune porting on a rx1 but my buddy sent his yfz 450 head to lrd performance and it came back with epoxy in the bottom of the intake ports just like the mototune porting.
According to one guy that tried it on a yfz it adds top end which is exactly what wed want for a sled.
Speaking of yfz,s mine shot the rod through the cases today,trying to get one last ride in this year.
JDMCRX
TY 4 Stroke Junkie
- Joined
- Dec 13, 2005
- Messages
- 655
- Reaction score
- 1
- Points
- 873
- Location
- OTTAWA, ONTARIO CANDADA
- Website
- www.jbauto.ca
Mototunes
Similar threads
- Replies
- 6
- Views
- 1K
- Replies
- 5
- Views
- 1K
-
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.