steves 1026cc conversion
 

images of Steve's 1026cc bike, and the article about all the work done to it back in 2002 (i think?)

http://www.photobox.co.uk/album/4325619

P.S. this article is on the workshop wall at moto rapido ( again i think. As it was on the photos of wilfs track bike build)


sorry in advance if this was not ok to post the thread :~

Was trying to add all the pages to this thread but i have reached my file size limit. Url above to photbox gives you an idea. Failing that drop me a Personal message and ill e-mail the rest to you :-)

any chance of an overview of the story?? cant make out from the pics....thinking about power & torque, the work that had been doen to get there etc...
cheers

the 996 can be bored out 2mm with the fitment of pistals 100mmbore pistons to get 1037cc or 1068 with a 900ss crank.

i have done 2 long stroke 1026 conversions and the number 1026 will only yeild a few hp unless combined with other mods. see brads motoone performance notebook he has just back to back tested a few.

i guess going 1037 2mm overbore instead will make better use of the combustion chamber after deshrouding and this MAY make better power than the long stroke 1026 version.

I've seen the article I think, linked above

what kind of power did the ones you've done make? Eg my 996 made 126 rwbhp on a dyno some time ago, would this be likely to go 130, 140, 150?

I have just spoken to steve at M R who said to expect about 10 HP in the mid range and about 5 HP more at the top end.Its a bit like doing an 853 kit on a 748 basicaly loads more useable mid range.His 1026 has had the full corse treatment giving about 155HP at the wheel on his stingey dyno with s/s quarter mile times of 10.3 in the high 140MPH.

Awesome

Well I'm sure it is, but I would wonder (a) what on earth must it have cost, and (b) if you tune your bike to race tune you must have to maintain it to race standards, i.e. top end rebuilds every ? miles.

BC

Have to say I agree with Beancounter. It seems an awful lot of trouble to go to for an extra 30 cc. And you have to mess around to sort out the piston travel to make sure that the extra 2 mm stroke (1mm each at TDC and BDC) won't result in any piston to head contact either by fitting thicker base gaskets or using different pistons.

If I had the dosh to do this I think I would spend it on tuning the standard motor - maybe some gas flowed heads and getting the cams dialled, that sort of thing. I would look to build a sweet running reliable motor that's maybe got a few mods, been built carefully and with all it's tolerances spot on than build something like a grenade with the pin half way out

take 1 custom mapped 996sps say 120hp with pipes. Add the long stroke crank wich is an extra 28cc wich allmost gives 1 extra point of compression as well. the result after remapping is 5-6hp through the range. its a lot of work for little gain spend money on pistons,porting,pipes and crank balancing for best results

Hey guys,i quite agree but then you could do what i've done and just buy a GSXR 1000 K6 and with a pipe get 164BHP at the rear wheel.

But it aint no Ducati !!!!

Steve did the 1026R just because he could. the 1026cc conversion isnt good value for money and its a lot of work/money. But..

My 853RS was a ridiculous project really , it cost a fortune and took hours to measure , build, prep, have special parts made etc. etc. I could get more power out of a 998S with pipes and cam timing. BUT.. i wanted to be different and get the ABSOLUTE best out of the 853 before i gave up on it. And i did!!!! there is NOTHING extra that i could have done to get any more out of it. WHAT FUN!!! (and it's a dream to ride)

Think that's what makes us enthusiasts?

back to the 1026 for a 996SPS... Cams, hi comp pistons etc. are better "Performance vs. ££££'s" but have the effect of more power up top rather than more 'grunt' so it all depends on what you want.

There are soooooo many tuning options, all with different costs and results.