|
 |
TWO-STROKE SHOP: CHEETAH & CUB ENGINES + ALL AFT'MKT PAR
|
|
|
|
|
|
| Author |
Message |
|
|
|
|
Post subject: TWO-STROKE SHOP: CHEETAH & CUB ENGINES + ALL AFT'MKT PAR
|
|
|
|
twostrokeshop  Suburban Commuter Joined: 13 Feb 2008 Total posts: 74 Location: Cairns, Tropical North Queensland, Australia |
Welcome to The Two-Stroke Shop: Specialising in adapting Trinity Racing Cub and Cheetah engine kits for motorcycle applications.
For the last word in two-stroke performance and reliability, it has to be Trinity Racing Cub and Cheetah engine kits every time. These Yamaha RD/RZ & Banshee-based monoblock Nikasil-plated alloy powerhouses range in capacity from 358cc to 610cc and beyond (when using billet engine cases) with truly staggering power and torque outputs, that will transform your RD/RZ, Yamagamma, RGV, RS or other special into a true two-stroke superbike.
Here at www.twostrokeshop.com we are committed to moving well beyond the mere selling of kits, to providing you with all the technical advice necessary to make the right choices for your application. We can tell you what will work; what is ideal and what isn't; how to build and setup your machine; we can supply you with all necessary aftermarket electronics, kit you out with expansion chambers and even engine mounting subframes to fit your Cub or Cheetah engine in your choice of bike.
We ship worldwide direct from the Trinity Racing factory to you. We are the only company that specialises in the supply and fitting of Trinity Racing Cub and Cheetah engines to motorcycle applications. We can supply everything from top end kits to whole engines.
Just visit our site at www.twostrokeshop.com to find out more about Trinity Racing Cub and Cheetah engines.
In particular, do drop into our Aprilia/RZ Cheetah RS500 project page at http://www.twostrokeshop.com/Aprilia_RS500_2008.htm for:
Background info and pics regarding Cheetah and Cub porting technology;
Matching of RD/RZ/Banshee top engine case transfer ports to the much larger Cheetah & Cub transfers;
Comparison shots of RD/RZ cylinders vs. Cheetah/Cub monoblock cylinders;
And lots more.
We are always expanding this site with much more info, pics, diagrams, how-to technical explanations and step-by-step installation instructions. We hope to welcome you back here soon with lots more material to get your teeth into.
Aftermarket Parts
We stock Wossner, PRO-X and TKR piston kits as well as crank parts and all engine & gearbox bearings, cylinder liners, conrod kits, gasket sets, seals, reed valves, stock and heavy-duty clutch plates and baskets/inner rotors, primary gears, bling engine cases - just about anything desirable for your two-stroke!
Stephen Rothwell (Many of you will know me on this forum as 'Cairnsy':
http://www.yamaha-rd.com/forum/profile.php?mode=viewprofile&u=6950 )
The Two-Stroke Shop
www.twostrokeshop.com
Cairns Motorcycle Tours and Hire
9 Compass Close, Edge Hill
Cairns 4870
Tropical North Queensland, Australia
Tel. (In Australia): 0427 774 285
Tel. (Outside Australia): +61 427 774 285
Web: www.bikingaustralia.com
Email: offbeat@iinet.net.au
ABN 11 346 987 340
|
|
|
|
Posted: Mon Apr 21, 2008 12:26 pm
|
|
|
|
|
|
Post subject:
|
|
|
|
Bigmaxy Sunday Rider Joined: 10 Apr 2007 Total posts: 49 |
G'Day Cairnsy.
I'll be at the stage soon of building an RZ engine for the LC hybrid I'm currently working on.
It won't be anything fancy just a set of ported barrels, reeds, shaved head carbs and exhaust.
While the engine is apart though I'd like to renew the crank and stick a new set of bearings in.
Can you supply a set of main, big and small end bearings for postage to Wagga NSW. Jeez long story for a small question. sorry bout that. lol
Cheers.
ps planning to win the lotto this weekend so might be back for a cheetah engine, but not till I've had my fun with the 1098 I'll also be buying.
|
|
|
|
|
Posted: Tue Apr 22, 2008 5:30 am
|
|
|
|
|
|
Post subject:
|
|
|
|
| nath Got the Powerband! Joined: 08 Jan 2008 Total posts: 7 |
Steve gets my vote for his knowledge and being an all round top bloke, I've just ordered a cub kit for my RZ and I've been extremely happy with the contact and service I have received.
If you are looking for this gear, he's your man 
|
|
|
|
|
Posted: Tue Apr 22, 2008 7:46 am
|
|
|
|
|
|
Post subject:
|
|
|
|
twostrokeshopSuburban Commuter Joined: 13 Feb 2008 Total posts: 74 Location: Cairns, Tropical North Queensland, Australia |
| Bigmaxy wrote: |
G'Day Cairnsy.
I'll be at the stage soon of building an RZ engine for the LC hybrid I'm currently working on.
It won't be anything fancy just a set of ported barrels, reeds, shaved head carbs and exhaust.
While the engine is apart though I'd like to renew the crank and stick a new set of bearings in.
Can you supply a set of main, big and small end bearings for postage to Wagga NSW. Jeez long story for a small question. sorry bout that. lol
Cheers.
ps planning to win the lotto this weekend so might be back for a cheetah engine, but not till I've had my fun with the 1098 I'll also be buying. |
-----------------------------------------------------------------------------
G'Day Bigmaxy,
Not a problem mate, I can get those crank bearings for you. YFZ350 Banshee bearings from Pro-X will drop straight in and you're sorted. It's the same deal at Yam dealers anyway; Banshee bearings supersede the old RD/RZ parts.
The Left and Inner 1+2 crank bearings are Pro-X Part#23.83464A. Price per unit: AU$39.75. You need three of these so that would = $119.25
The Right crank bearing is Pro-X Part#23.83406. Price per unit: AU$39.75
Little end bearing is Pro-X Part#21.2020. Price per unit: AU$14.50
The total for all the crank bearings and 2xlittle end bearings would be $188.
A set of crank seals I can do for $25.50. A full Banshee oil seal set (of course this comes minus the RD/RZ model oil pump shaft seal, but I can throw one of these in for you anyway) comes in at $39.50.
Pretty much anything I can get for ya if you want it. 
We are all set up to take credit cards over the 'phone; we accept Paypal; and our direct bank details are below.
Our Banking Details
Bank: Westpac
Branch: Lake Street, Cairns, Queensland, Australia
Account No: BSB: 034167 Account Number: 298350
Swift No: WPACAU2S
Name of Account: Cairns Motorcycle Tours
Thanks for looking in. Anything you want or would like to enquire about, just give us a hoy.
Cheers,
Steve Rothwell
The Two-Stroke Shop
www.twostrokeshop.com
Cairns Motorcycle Tours and Hire
9 Compass Close, Edge Hill
Cairns 4870
Tropical North Queensland, Australia
Tel. (In Australia): 0427 774 285
Tel. (Outside Australia): +61 427 774 285
Web: www.bikingaustralia.com
Email: offbeat@iinet.net.au
ABN 11 346 987 340
|
|
|
|
|
Posted: Tue Apr 22, 2008 9:17 am
|
|
|
|
|
|
Post subject:
|
|
|
|
twostrokeshopSuburban Commuter Joined: 13 Feb 2008 Total posts: 74 Location: Cairns, Tropical North Queensland, Australia |
| nath wrote: |
Steve gets my vote for his knowledge and being an all round top bloke, I've just ordered a cub kit for my RZ and I've been extremely happy with the contact and service I have received.
If you are looking for this gear, he's your man |
Awwww, thanks for the vote of confidence Nath! It's grand to know my efforts are not in vain! 
Cheers,
Steve Rothwell
|
|
|
|
|
Posted: Tue Apr 22, 2008 9:24 am
|
|
|
|
|
|
Post subject: 28mm offset sprockets for Aprilia RS/RD hybrids
|
|
|
|
twostrokeshopSuburban Commuter Joined: 13 Feb 2008 Total posts: 74 Location: Cairns, Tropical North Queensland, Australia |
Hello Chaps,
I am placing a group order with AFAM for sprockets with a 28mm offset, for running the RD/RZ engine in the Aprilia RS250 chassis.
Anyone who is building or is interested in building an Aprilia RS/Yam RD/RZ hybrid will need one of these sprockets, as well as the RZ/RS engine mounting cradle of course.
I chose AFAM to manufacture the sprockets because they're a big professional company, and I know the products will be top-notch.
Current pricing is US$180 (about 90 Quid) per sprocket, but even if I get just a few more orders, that will push us into a cheaper bulk rate, and then the sprockets will come down to around $150 apiece (about 75 Quid.)
Not especially cheap I know, but they're hard to come by, and they are being made by a dedicated sprocket firm, and you know you are going to get your sprockets at the end of it all.
Lead time for manufacture is around four weeks. Shipping is by EMS and for up to 1kg you would be looking at around the $30 mark (about 15 Quid.)
Anyone interested can contact me on offbeat@iinet.net.au or info@twostrokeshop.com or via PM or the telephone contact details below.
Cheers,
Steve Rothwell
The Two-Stroke Shop
www.twostrokeshop.com
Cairns Motorcycle Tours and Hire
9 Compass Close, Edge Hill
Cairns 4870
Tropical North Queensland, Australia
Tel. (In Australia): 0427 774 285
Tel. (Outside Australia): +61 427 774 285
Web: www.bikingaustralia.com
Email: offbeat@iinet.net.au
ABN 11 346 987 340
|
|
|
|
|
Posted: Thu May 08, 2008 3:01 pm
|
|
|
|
|
|
Post subject:
|
|
|
|
bryanbengal All-gear Wheelie! Joined: 03 Oct 2006 Total posts: 1782 Location: Eastwood, Essex |
just been reading the websit, RS500..NICE.
Would surprise lots of superbikes. 
whats the cost of the engine cradle.
|
|
|
|
|
Posted: Wed Jun 04, 2008 8:39 am
|
|
|
|
|
|
Post subject:
|
|
|
|
twostrokeshopSuburban Commuter Joined: 13 Feb 2008 Total posts: 74 Location: Cairns, Tropical North Queensland, Australia |
| bryanbengal wrote: |
just been reading the websit, RS500..NICE.
Would surprise lots of superbikes.
whats the cost of the engine cradle. |
Howdy Bryan,
Thanks for the feedback!
The engine cradle goes for 240 Quid or US$475 plus shipping.
Cheers,
Steve
|
|
|
|
|
Posted: Wed Jun 04, 2008 8:48 am
|
|
|
|
|
|
Post subject:
|
|
|
|
bryanbengalAll-gear Wheelie! Joined: 03 Oct 2006 Total posts: 1782 Location: Eastwood, Essex |
would have thought it would out handle and perform an RD/RZ500 V4.
|
|
|
|
|
Posted: Wed Jun 04, 2008 11:24 am
|
|
|
|
|
|
Post subject:
|
|
|
|
twostrokeshopSuburban Commuter Joined: 13 Feb 2008 Total posts: 74 Location: Cairns, Tropical North Queensland, Australia |
| bryanbengal wrote: |
| would have thought it would out handle and perform an RD/RZ500 V4. |
Oh my word yes. We're talking 21st Century porting and cylinder technology; plated alloy liners; custom removable head domes; a vastly superior chassis and both the engine and the bike are much lighter.
Quite a few of the RS500 builders are putting modern GSX-R front ends into the RS frames; getting the top head race bored out to accept 52mm head bearings so the Gixxer bearings snick straight in. Just a stem change and a couple of spacers and that's a new front end with radial calipers and adjustable everything ... and beefier overall, in line with the *ahem* rather ample proportions of many of we RD-LC brethren.
Awww and why not. I know the purist OEM anoraks may blanche at the sentiment, but I say if yer going to build a hybrid, make it the best possible bike it can ever be.
That the basis and the heart of this beast is built around the venerable YPVS engine is just so precious, I reckon. A celebration of the greatest two-stroke engine that ever breathed fuel/oil mist - the RD350LC.
Yes!
Cheers,
Steve
|
|
|
|
|
Posted: Wed Jun 04, 2008 12:45 pm
|
|
|
|
|
|
Post subject:
|
|
|
|
bryanbengalAll-gear Wheelie! Joined: 03 Oct 2006 Total posts: 1782 Location: Eastwood, Essex |
Im interested in a V4, however might look at the cost for getting one of them if I can get a reasonable priced RS, or one with a blown engine.
Have looked at website and the barrels are great, loads of ports and CR250 reed bolcks. Only thing is the cost of the engine, which im sure would end up at £2500-£3000 alone. 
|
|
|
|
|
Posted: Wed Jun 04, 2008 3:28 pm
|
|
|
|
|
|
Post subject:
|
|
|
|
twostrokeshopSuburban Commuter Joined: 13 Feb 2008 Total posts: 74 Location: Cairns, Tropical North Queensland, Australia |
| bryanbengal wrote: |
Im interested in a V4, however might look at the cost for getting one of them if I can get a reasonable priced RS, or one with a blown engine.
Have looked at website and the barrels are great, loads of ports and CR250 reed bolcks. Only thing is the cost of the engine, which im sure would end up at £2500-£3000 alone. |
The Cheetah Cub top ends (without powervalves a la LC) are the most bang for the buck, you can get into the 400cc Cub top end kit (comprising monoblock Nikasil-plated cylinder with 68mm bores, pistons/rings etc and billet Stage IV heads with custom removable domes) for around the US$1500 mark.
Then, jump up another $500 for the 421cc Cheetah Cub, which comes with a +4mm stroker crank (the +4mm crank bolts straigght in, no case mods required.) Cubs go up to 465cc by dint of using longer stroker cranks.
Next step up is the Super Cub, which with its 72mm bore and a +4mm stroker crank displaces 472cc. Going much bigger than this in a Super Cub means a fair bit of case modding ... by the time you are at a +7mm stroker crank and looking to go +10, it's really time for billet cases.
Then to the piece de resistance - the Cheetah kits. These are the last word in two-stroke oomph; ranging from 400cc to 611cc and come with billet aluminium powervalves.
Check out this link: http://www.twostrokeshop.com/trinity2.htm
to see side-by-side comparisons of Cheetah 485cc cylinders alongside stock RD/RZ350 cylinders, also a comparo of stock 350 and Cheetah 421 tunnel-ported base gaskets.
The 485cc monoblock cylinders have shedloads of boost ports, run massive CR250-sized reed cages; come complete with +4mm crank, 35/36mm PWK carbs, K&N filters, throttle cables, billet head with custom removable head domes, a custom Cometic gasket set, o-ring heads, Wiseco pistons, a choice of stock reeds or Delta V-Force carbon fibre reeds, custom cylinder porting, and custom transfer port work to meet your style of riding.
Here are the kit sizes:
400cc kit* (uses stock crank)
421cc kit (uses 4mm crank)
472cc kit** (uses 4mm crank)
485cc kit** (uses 4mm crank)
496cc kit** (uses 7mm crank)
535cc kit** (uses 10mm crank)
593cc kit** (uses 14mm crank)
610cc kit** (uses 16mm crank)
*The 400cc engine kit uses stock crankshaft, all larger sizes require stroker crankshafts (included with Cheetah kit).
**472cc and larger Cheetah cylinders require crankcase modifications, i.e. overboring the top case to accept the bigger cylinders.
You can go up to 485cc in a Cheetah kit with the straight-drop-in +4mm crank. This kit requires only top case mods to accept the bigger piston/sleeves, and transfer port matching if you go with the tunnel porting option.
Porting ranges from Stage II - ideal for road use with great power all through the rev range - to full race Stage IV, and sheer insanity.
All stroker cranks 7mm and over do require mods to engine cases, called 'trenching', or the other option is to go with a fresh set of billet cases that are designed for the stroker cranks/additional stresses. Best mob for this are www.mattoonmachine.com - these dudes also make a triple-pot set of billet engine cases, with which you can build a 1000+cc triple with truly frightening levels of power and torque.
So Cheetahs come with absolutely everything required in a bolt-on kit. Except to say you will defo need to beef up the clutch; with the 400 and 421 you can just about get away with a (good nick) stock clutch basket running H/D carbon fibre Barnett plates and uprated springs, but for the bigger berthas the best option is to run a beefy 8-plate Hinson billet clutch.
Oh and the exhaust stubs are of the Banshee spigot type, which naturally require that type of fitting for the headers.
Cheetah kits range from US$3100 for the 400cc kit; add another $550 for the 421 kit - which is often touted as the best bang for the buck in the Cheetah series. The 485 Cheetah, with a hefty boost in torque over the 421, is around the same price as the 421 kit, and then as you move up to 496cc and over it's all about progressively longer-stroke cranks and of course case mods/ billet cases.
I'm currently helping six guys to build their own RS500s, using RS parts sourced via Yahoo Japan Auctions. A ludicrously cheap way to go, with the added carrot of exotic stuff like fully-adjustable TZR SP and RGV-SP front ends etc.
Our pipe builder has an impeccable pedigree, having designed and built pipes for the Red Bull Yamaha 500GP team. He is also optimising the porting of Cub and Cheetah cylinders for us, and in so doing adapting these cylinders for road-bike and race-bike use.
So we are offering a complete conversion service for those interested in fitting Cub and Cheetah cylinders to their RD/RZs, Yamagammas and so on. We are modifying the Autolube pumps to deliver higher volumes of oil to match the needs of the bigger engines, and supplying everything from beefier clutches to programmable electronics.
The biggest coup by far is in working with GP engineers in modifying these power-house engines from something that is quick, to a scenery-smearing rocketship.
Anyone who is interested in further info, please drop me a line or a PM. I'm a distributor for these kits in Australia/NZ/Asia - but have sold a few kits into Europe too. Everything is flown straight out of the factory in California, to anywhere in the bright blue world.
Come and share the power trip with us!
Cheers,
Steve
|
|
|
|
|
Posted: Wed Jun 04, 2008 4:06 pm
|
|
|
|
Options and Permissions
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum
|
| Page 1 of 2 .:. Goto page 1, 2 Next |
|
Powered by phpBB. copyright © 2002 phpBB Group. Template design - Vereor.
|
|
