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V7 II Engine Mod...

REDHEADBOXER

REDHEADBOXER

Tuned and Synch'ed
GT Famiglia
Joined
Jul 25, 2011
Messages
34
Location
Pacific Palisades
Ok, Todd don't slap me too hard for asking this, but... Say one were to buy the new V7 II coming out with all the new bells and whistles ie... Traction control, ABS, 6 Speed etc...

Can you get that little 744cc motor and turn it into a 1000cc bike, producing close to 100 hp and at least 75 - 85 lbs of torque, WITHOUT losing traction control, abs, etc...

If so how would you do it? I am selling a highly mod'ed custom Thruxton in favor of the new Guzzi. I love the Cafe Racer bikes, always have. Yes, my H-D Street Bob serves a different purpose, now I would like to add an Italian to the stable.

Thanks in advance for any feedback. I should note, I spent ridiculous amounts on both my bikes in upgrading them. I am not interested in hearing why don't I just go buy a different bike! I like what I like and I also like a challenge, thanks guys!

Cheers
 
I bought and installed a big bore kit from R.E.M. in Italy. Enlarged the engine to 820cc. It was a great exercise, but solving the fueling was a chore. Unlike a carb bike, you just can't replace the jets.
 
freddyc said:
Can you get that little 744cc motor and turn it into a 1000cc bike, producing close to 100 hp and at least 75 - 85 lbs of torque, WITHOUT losing traction control, abs, etc... If so how would you do it
Click to expand...
Hey Fred, in short, no way, no how, no matter how much money you throw at it, even with the biggest of bores. Our friend @mwrenn just completed a 4V head swap, which I'll be doing the same (thanks to him!)... but max power without it being fragile would likely be in mid-60's, max. This motor, as I've mentioned, started life a 350cc engine, so the fact that it lives as a 750 is impressive. The heads are the weak link... unless you find a Guzzi drone motor like our friend @Chuck in Indiana did. 4V heads, 820cc kit, Carillo rods and cam might do slightly better then what I quote, but not a ton more.

sign216 said:
I bought and installed a big bore kit from R.E.M. in Italy. Enlarged the engine to 820cc. It was a great exercise, but solving the fueling was a chore. Unlike a carb bike, you just can't replace the jets.
Click to expand...
Fuel and timing solutions are easy for me... did you ever dyno it?
 
Thanks Guys, so the max is the max kind of disappointing but still sexy enough bike to over look the inadequacies of power, which I'm attracted too. Haha

Has anyone ever replaced the engine with a new used engine from a beast of yesterday and paired it to the modern drivetrain and such???
 
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freddyc said:
Has anyone ever replaced the engine with a new used engine from a beast of yesterday and paired it to the modern drivetrain and such???
Click to expand...
As a "small block," the only new/used engine would be smaller in displacement. The big block motors will not fit into this frame... and at that point, our friend at Radical Guzzi is doing what you speak of, which I know you've seen.
 
I keep forgetting you told be it started as a 350cc. :)
As for the guys in Germany, yes they are doing cool stuff but, I would like to keep the modern components, ie. traction control, ABS etc.

I think this would be a cool long term project, Todd... Hahaha
 
GT-Rx® said:
did you ever dyno it?
Click to expand...

I'm going to dyno it this spring. It'll be interesting.

Previously I lost some time due to a low-side that broke two bones.

I attacked the fueling issue with a MyECU from Australia, a replacement ECU that let's you adjust every engine parameter. It's a great system, but it's only for the "old" pre-13 engines.
 
Hmmm....if you had lots of money....you just might be able to engineer a four valve head for a small block....that uses double overhead cams. Something like the Griso 8V. That would at least let you rev it to 10k maybe. Horsepower being a function of rpm, the numbers would get up there. I've been kicking around that idea myself, getting rid of the limitations inherent in the pushrod actuated valve train.
No real point it doing it, my bike runs freakin great the way it is, but it would be a fun way to spend some money....LOL.
 
Just for inspirational purposes, here's a two valve SOHC V65, 13,500 rpm, makes a claimed 100 hp. How fun would that be!!! I understand that the next step is to make it a dry sump engine...
 
Moto GuzziV35 8v Racer Mandello A little more info, and a picture so you can get a good look at it: Small block, V65 crankshaft, Pankl connecting rods, 81mm Suzuki Hayabusa modified pistons (so, 660 cm3 displacement), custom made 2 valves heads with single overhead camshaft and trapezoidal combustion chamber, Dell'Orto PHM 40mm carburetors,
Built by a local (of Mandello) group of enthusiasts and engineers. The bike weighs about 130kg, and the engine delivers around 100 hp at 13500 rpm.
Freddy, you know you need to build one like this right? its the right thing to do, things would just be better if this engine existed in a V7 Racer in Cali.
I'm just sayin man.
 
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sign216 said:
Mwrenn, I give you credit for uncovering that. It is one crazy machine.
Click to expand...
Yeah, I'd like to see that in person. I have been seriously considering a Griso 8v setup, scaled down for the small block, just to see if it could be done. Apprently the bottom end holds up to high rpms ok...LOL
 
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