ALLAN YUEN
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- Jan 14, 2005
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- 6,429
Good Job Modified piston/liner and crankshaft reason price RB, NovaRossi,Picco and Rossi h34r: Look at web http://rbmods.net Good Luck!
Where to buy?
- Thread starter Duck899
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Good Job Modified piston/liner and crankshaft reason price RB, NovaRossi,Picco and Rossi h34r: Look at web http://rbmods.net Good Luck!
jason jury
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- Mar 1, 2005
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- 609
i received my 2 nova rosi 35 plus 21,s today,, very impressed indeed.. i used to run macs and cmb 21, s but when i raced a few months back against mr ian , nitrocrazed with his nova . well , all as i can say is if he didnt fall over during the heat, i couldn,t catch him, and i had a andy brown moded mac running hot, so that why i changed,, the nova,s from rossi sales seem to be a one type of model and thats it,, i have never seen a frank orlic moded nova to date, but hear good reports about them,, pitty frank does not do the moding any more,,
im racing with arron from ozspec in january at the world challenge down here in sydney, australia,,
hopefully some of you americans come out with 21 riggers and even some frank orlic moded novas,,
arron, ian and i will be be glad to go head to head in the 21 rigger class , and see who,s hot and who,s not,, , just my 2 cents worth,,
nova 35 plus 21,, race one or chase one,,
im racing with arron from ozspec in january at the world challenge down here in sydney, australia,,
hopefully some of you americans come out with 21 riggers and even some frank orlic moded novas,,
arron, ian and i will be be glad to go head to head in the 21 rigger class , and see who,s hot and who,s not,, , just my 2 cents worth,,
nova 35 plus 21,, race one or chase one,,
Mick J
Well-Known Member
- Joined
- Apr 5, 2003
- Messages
- 267
i received my 2 nova rosi 35 plus 21,s today,, very impressed indeed.. i used to run macs and cmb 21, s but when i raced a few months back against mr ian , nitrocrazed with his nova . well , all as i can say is if he didnt fall over during the heat, i couldn,t catch him, and i had a andy brown moded mac running hot, so that why i changed,, the nova,s from rossi sales seem to be a one type of model and thats it,, i have never seen a frank orlic moded nova to date, but hear good reports about them,, pitty frank does not do the moding any more,,
im racing with arron from ozspec in january at the world challenge down here in sydney, australia,,
hopefully some of you americans come out with 21 riggers and even some frank orlic moded novas,,
arron, ian and i will be be glad to go head to head in the 21 rigger class , and see who,s hot and who,s not,, , just my 2 cents worth,,
nova 35 plus 21,, race one or chase one,,
Hey Lickety, what have you done with your MAC 21 and CMB if you don't mind me asking?? Still got 'em???
Johno
- Joined
- Nov 2, 2002
- Messages
- 2,662
Some pics of the engine and components.
https://www.intlwaters.com/gallery/thumbnails.p...=930&page=1
Ian.
https://www.intlwaters.com/gallery/thumbnails.p...=930&page=1
Ian.
- Joined
- Jul 24, 2002
- Messages
- 7,130
Thanks for the great pix Ian!
Looks like the water jacket was a bit of an afterthought, any problems overheating?
steve wood
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- Dec 6, 2004
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- 1,774
we run a smaller groove than that!
NITROSNIFER
Well-Known Member
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- Oct 16, 2004
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- 1,444
I've been running this style crank in my .21 WS-7's. you cut the shaft and recess the flywheel to accept the collet. I've had great success with the car engine in my boats.
Swissrigger
Member
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- Apr 16, 2004
- Messages
- 15
Waltr,
This silicon ramp is very sensitive (gets damaged) to many cleaning oils like WD40. WD40 will blow it to a balloon and it will get loose. So far I know Corrosion X has not this adverse effect.
Regards,
Petr
Swissrigger
Member
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- Apr 16, 2004
- Messages
- 15
Terry,
No problems with overheating. Enduro racers (FSRV Naviga) race them (geared) in heats of 30min without problem..
Regards,
Petr
(Switzerland)
Mike Byer
Well-Known Member
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- Feb 17, 2002
- Messages
- 2,751
How many threads do you expose when you cut the flywheel, and what is a ws-7? even though it has the pilot, the crank is still threaded 1/4-28 right.
mb
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- Jul 24, 2002
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- 7,130
In a mono?
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- Jul 24, 2002
- Messages
- 7,130
Well, there's the answer!
Swissrigger
Member
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- Apr 16, 2004
- Messages
- 15
Mike,
What nitrosniffer is describing is a general procedure to convert a car to a marine engine. On my I leave about 5mm of thread. I cut the front part of a Novarossi flywheel and use the collet unchanged.
Petr
- Joined
- Nov 2, 2002
- Messages
- 2,662
Mike
On my engine (see here: https://www.intlwaters.com/gallery/displayimage...=241&pos=62 ) I used a flywheel from a CMB RS21. The RS/LS 21's also have very short threaded shafts. I had to machine a small chamfer on the back of the flywheel to clear the carb boss. Aaron is having custom flywheel made to suit. I am told that this flywheel also fits without modification: http://cgi.ebay.com.au/Option-21-Class-3-5...oQQcmdZViewItem
The collet is a normal octura collet.
Ian.
- Joined
- Nov 2, 2002
- Messages
- 2,662
The silicone starts off quite hard, but I had the issue that Petr mentions (I didnt know about the chemical attack problem!
) so I removed the silicone from my engine: https://www.intlwaters.com/gallery/displayimage...=241&pos=60Ian.
- Joined
- Nov 2, 2002
- Messages
- 2,662
Terry,
Thanks, taking the pics, cropping them etc took me a few hours!
The water jacket I use was made by Kevin Bulifant and has much less volume than the Nova 35 Plus 21 jacket. I was able to use the KB jacket on my engine in a gear drive Multi boat for 15 minute races without cooling problems! In the rigger I have further restricted the water flow! You can see the water passage in the head I use in this pic: https://www.intlwaters.com/gallery/displayimage...=241&pos=56
Ian.
