Hi Guys, I have CB1000R which has detuned 07 blade engine in it, I have modified everything on the bike apart from the engine so now the time has come to get more power from this. Is there anyone here that has done big bore/stroker engine build on their fireblade? Anyone knows what is the maximum cc I can go for? Any info would help. I will not even ask this question on the cb1000r forum as there is bunch of people who will slag you off for any mod other than exhaust or carbon bits.. as they think its fast enough and "if I need more power I should buy a coffin as I will need it soon if I ride like that". I don't want to go turbo way (not yet at least) so thinking on what I can do to get more power from that engine, there is no replacement for displacement so I am thinking about big bore kit as a start + head work. I have engine management sorted already and custom racing exhaust. ANY info will help. Cheers, Andy
Hi there. Not sure on which size you can go on the 07 model, but I know wisco make a +2mm piston for the 08 onwards blade. They have it listed, if you go to their website and search for your bike, they may do larger pistons to suit the 07 also. Keep us posted on how you get on. Love the idea of a big bore. Something I've already thought of for my bike. Just for the sake of it.
Just checked and it doesn't look like they do a +2 for the 07 blade. http://www.wiseco.com/ProductSearch.aspx
1000% with U about those morons on cb1000r forum (yes MORONS ,now delete nother time my message) also piston of cb are not the same of cbr unit , due nother head and comp. ratio JE (and wossner) come with +2 mm (77) for 1053 displacement with pc5, ignition mod , full arrow , ported head , regrind/timed cams i saw 155 ps btw
2006 as base also gear ratio is different (luckily gearbox come be swapped in 45 minutes) cb1000r sc60 1,604 (77/48) prim. 2,750 (44/16) end. 1 2,538 (33/13) 2 1,941 (33/17) 3 1,578 (30/19) 4 1,363 (30/22) 5 1,217 (28/23) 6 1,115 (29/26) cbr 1000 rr sc57 1,604 (77/48) prim. 2,562 (41/16) end. 1 2,538:1 (33/13) 2 1,941:1 (33/17) 3 1,579:1 (30/19) 4 1,381:1 (29/21) 5 1,250:1 (25/20) 6 1,160:1 (29/25)
For some reason I was not getting any notifications on this thread even that I set them to be instant.. No idea if fireblade engine will do anything without rest of the fireblade.. but 155whp would be sweet! I already have PC5, ignition module, arrow manifold in a box (I have yoshi r77 fitted at the moment and need link pipe between arrow manifold and yoshi can made), would these pistons change compression ratio? Bike is running ~130whp at the moment, it is all nice and sweet but it does lack the extra 30-40hp.. not as fast as I would like it to be above 100mph. Do you guys know anyone who could do the cylinder rebore + nikasil coating? I'm in Essex.
you can use arrow headers with all others aftermarket can , if they are complete (i used with akra b4) for sure with new pistons , comp. ratio gonna change (no clue about the numbers) another huge issue : on 6th gear ecu cut at 9700 rpm
I don't want to have large exhaust on the side, 3/4 yoshi R77 can is sweet size! Will get link pipe made and it all should be sweet. Dynojet Ignition module has so called RevXtend feature, you can raise rev limiter if you need to, I did not do it yet as I was not sure if it is safe to do so without installing stiffer valve springs.... just had an idea where I can get some. ;-) I wonder if fireblade springs will fit, it does rev bit higher than CB.
ok with the yoshi U will need an extra link pipe would be better a snaky shaped one for kill all instability in rev transition till 3500 about valves : cb 1000 r spring are the same of 2004-2005 1000 engine for intake and ehxaust the same 16 springs .... 06-07 came with double springs (outer and inner) swap is possible but the retainer are not the same valves are not the same (if U ask why i know that ; well it s my job ....)
So if valve springs are the same, do you think I can raise the rev limiter? Anything else would have to be done for this to be safe? Do you know anyone who could re-bore and replate nikasil on this? I contacted Langcourt but they are unable to recoat cylinder that has block attached to it like on this engine.
i will not do on a complete oem engine , but must admit nothing will happen if all is in right shape i m working in germany , sorry no idea who can do that for U (will ask on oldskoolsuzuki forum)
Can a CBR engine not be thrown in instead to give you the extra oomph? Surely would cost around the same to source one of those, than to faff about trying to get your current engine to the same spec as a CBR engine.
Ok so done a bit of research on this and seems like this is not so easy as it lookes like, so far I was unable to find a company which could re-bore and nikasil coat the honda cylinders because cylinders are part of the engine block, every company I talked to so far can do cylinders that you can unbolt from the block but not the one that is part of the block like on CB/CBR. Looks like I will have to try to push max whats possible from just the head modifications, raise compression ratio a bit etc.. I wonder how much difference this will do. Will keep you guys posted. BTW how high 05 fireblade 1000 revs? Valve springs are indeed the same, checked part numbers and they do match.
