851 SP3 replica project.

BARONROJO

Here it is, the bike is in its definitive shape. I still have to adjust injection, suspensions and some other minor details but the big job is now over.

AND IT'S GORGEOUS!!!

The happy owner and mechanic adding some ugliness to the bike and this story is over for now.

Mr.R

That's looking fantastic, well done sir! 😎
Please let us know how much power/torque (and where) the new tuned 996cc motor's kicking out.

edit...Looking at the pic's again today I have to say it looks like a new bike.

Steve R

BARONROJO

It's going to be accurately mapped soon and we'll see what it does... Anyway with the S4R throttle body (one injector per cylinder) it's impossible to get more that 130 CV... Although I would consider that much power a great success, I'm more aiming for a torquey midrange engine.

You'll be informed and thank you for your compliments. The pictures don't really match the gorgeous bike in person!

wgsvintage

Very nice job! That speedometer is begging to roll over 40K.
Bill

BABA

Great job Eduardo !

Your bike looks really nice 😎

BARONROJO

wgsvintage wroteVery nice job! That speedometer is begging to roll over 40K. Bill

You haven't really missed any detail, you little watcher!

BARONROJO

BABA wroteGreat job Eduardo ! Your bike looks really nice 😎

Thank you Baptiste. It's really flattering coming from such an expert as you are (as you're all, guys, don't misunderstand me, please Mr. R! ) 😁

ajcorse

looks nice and good, great work !!!

😉😉😉😎

Jafa

Well done, the bike looks very nice indeed. Hope you get the performance you want out of it and enjoy many long rides.

Phil911

The best parking place for such a great bike is ... my garage !!! 😝

CONGRATULATIONS !!

Phil911

BARONROJO

Phil911 wroteThe best parking place for such a great bike is ... my garage !!! 😝 CONGRATULATIONS !! Phil911

Yes, not a bad idea. Maybe I can pop in your place for dinner and mine will be a good company for yours!

BARONROJO

ajcorse wrote😉😉😉😎

Thanks for providing the tasty carbon bits... 😎

BARONROJO

By the way, my so gooooorgeous bike is finished, runs perfectly and has a massively midrange torquey engine!!,

stiglarsenDK

BARONROJO wroteBy the way, my so gooooorgeous bike is finished, runs perfectly and has a massively midrange torquey engine!!,

Art on wheels !

RWG

This has been a joy and an education to read, many thanks.
Now I need to think could I have my spare 851 engine built by some one who knows how to? Into a spec higher than standard motor in my 851 Strada Tricolore.
Again many thanks, enjoy it.
Regards
Paul
RWG

BARONROJO

I know "some" time has gone by since I finished my pride and joy and it's a great bike to ride and I can afirm from now on that it's a very powerful too...

Results from dyno today. Yes, it's an inercia dyno an surely optimistic but...

Nice for an ST4S engine, isn't it?

dudlington

Stunning , slightly optimistic but 130 rwhp is realistic.

Mr.R

Good effort well done chap!😎
Healthy figures for a 996 with T1 cams and single injectors, I bet it's a hoot to ride?

My 916cc 851 makes 128 rwbhp with 76.8 ft lbs of torque and it's pretty quick.*
I'm hoping that my 955cc motor will make close to 135-140 rwbhp with 80+ft lbs of torque.
Which would put it into the same ball park as your 996 motor.

*I've got the weight down (at present) to 388 lbs fully wet, but there's a few more lbs to loose with the new motor, some lighter wheels and possibly some magnesium yokes.

Steve R

BARONROJO

It's a terrific ride! The engine starts pulling from as low as 4000 rpm. From there on, it feels as it it were a 140 HP desmodue: lots of torque.
A close look at the dyno curves shows that it makes peak power at 8600 rpm but then horsepower stays there just about to the limiter. Anyway, I don't usually go any further that 7000 rpm, simply because there's no room for much more on the road.
I've road tested it side by side with a 998 and its owner reported that, no matter how strong he pulled out of corners, the 851 always left him behind. A 999S owner said that at first the 851 manages some advantage but then he gets on pair. So anyway it's a very healthy engine.

Mr.R

What centre line did you time the cams to?
Most motors fitted with 9*6 SPS T1 cams that I've seen peek at around 9,2-500 rpm or even higher.
My T1 cams timed at 107/107 CL's 916cc motor pulls like a freight train from as low as 2,500, to it's peek power at 9,200 rpm then holds it for 100 or so revs and then tails off, but will still pull to the red line/rev limiter at 10,500 rpm.
The bigger valves and extra capacity would obviously make more power and torque.
But I'm intrigued to know how it manages to peek at lower revs?

Steve R

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