V7 Classic with 4 valve heads, Dyno run

[mwrenn]

After quite a few miles this summer, and some fuel map magic from Todd at Guzzitech, I took the little goose over to Tulsa today for a Dyno run at K&N Cycles.  Super people to deal with.  Anyway, here is the result on the all gear run.  Stock RWHP is 39, the bike today ran at 54.99 RWHP.
A 40% increase over stock.  She is a blast to ride for sure.  Next up is a GuzziTech 820cc kit....I want to see if I can break 60 HP.
Many thanks to Todd for his tireless work on the fueling and Ed Milich for the timing chain tensioner!

[Kev m]

Sweet... There ya go. It can be done.

Mind if I ask cost so far?

[rocker59]

awesome!

[oldbike54]

Very impressive Mike  !

 Dusty

[mwrenn]

Sweet... There ya go. It can be done.

Mind if I ask cost so far?

I'm scared to add it up.  There were so many blind alleys I went down getting to this point.  If I did it again, on a later model bike, it would be substantially less. 
The parts list isn't too bad, two heads, a complete set of valves, springs, retainers, seats and guides.  Two custom pistons.  Some gaskets, studs, rocker assemblies, pushrods, and valve covers.  A Power Commander V with Auto Tune for the dual TB bikes,  or mapping from Todd for the single TB bikes.
The problem is finding the parts like the heads etc...
My cost so far, starting with Imola II heads, and getting the ports digitized, Kibblewhite valves etc...I'm guessing around $6K
Just the digital mapping on the ports was $2K.  Subsequent heads could be done for about  $300 each though....

[mwrenn]

Very impressive Mike  !

 Dusty

Thanks man!  Looking forward to a possum feast at Canton!

[LowRyter]

wow. that's a running little bike.   

It has a stout exhaust sound too.

[kirkemon]

Nice job indeed!

Which makes me wonder - if you can do it, why not the factory? Yes, I know, cost and reliability concerns, but hey.......

[kevdog3019]

Sweet... There ya go. It can be done.

Mind if I ask cost so far?

Of course it can be done. My next statement may shock some: The bike probably won't implode!!
Well done Mike!  Keep looking forward.

[Vasco DG]

Nice job indeed!

Which makes me wonder - if you can do it, why not the factory? Yes, I know, cost and reliability concerns, but hey.......

Cost, reliability and the zero% chance of it ever passing emissions regs.

[huub]

impressive results ,
i havent had my lario on a dyno yet, but iwould be amazed if it  made 40 hp....
now where can i find a v7 engine.....

[Kev m]

I'm scared to add it up.  There were so many blind alleys I went down getting to this point.  If I did it again, on a later model bike, it would be substantially less. 
The parts list isn't too bad, two heads, a complete set of valves, springs, retainers, seats and guides.  Two custom pistons.  Some gaskets, studs, rocker assemblies, pushrods, and valve covers.  A Power Commander V with Auto Tune for the dual TB bikes,  or mapping from Todd for the single TB bikes.
The problem is finding the parts like the heads etc...
My cost so far, starting with Imola II heads, and getting the ports digitized, Kibblewhite valves etc...I'm guessing around $6K
Just the digital mapping on the ports was $2K.  Subsequent heads could be done for about  $300 each though....

  Thanks.... Obviously the work of passion.

[Chuck in Indiana]

That's a really really nice piece of work you've done, Mike.. Attaboy!

[leafman60]

Very impressive.

A lightweight and trim V7 that produces 54 ponies at the wheel would be much more competitive in the market than the current iteration of the machine.

Dyno runs can produce results that vary depending in the dyno and the operator but this gives us something tangible for consideration. A before and after test on the same dyno will reflect meaningful info on the improvement of a bike. Thanks for posting.

I'd love to know what that airplane engine is producing and see the torque curve.

[Penderic]

Excellent work! Salute!


 

[oldbike54]

 I still say KD and Chuckie need to bring their tiddlers to Cedar Vale next year and face off with the
Oklahoma Hot Rod . Find out for sure which one of these things is really a bad boy 

  Dusty

[Chuck in Indiana]

I still say KD and Chuckie need to bring their tiddlers to Cedar Vale next year and face off with the
Oklahoma Hot Rod . Find out for sure which one of these things is really a bad boy 

  Dusty

Oh, I'd say the OHR would blow us both in the weeds.  KD's dynoed at what, low to mid 40's? No contest. We'll find out what the Aero engine is Saturday. The local Hondayamazuki dealer has a dynojet. I'd talked to the kid that runs it last week, and he agreed to do a run at 4500 or so to check cruising mixture, and a run like Mike's for hp and mixture again. Said he'd charge me a half hour. That's more like it.. (Guzzi content) The Local hawg shop said 2 hours minimum. Shirley, he jests.
At any rate, I should get a handle on jetting. Don't want to be too lean..

[oldbike54]

 I like my Shirlies lean 

 Dusty

[kevdog3019]

Yep... mine ran about 45 hp on a messed up dyno.  I'm not certain it was fueling as it should as it wasn't nearly right when I got it.  I'm hard pressed to believe the numbers are too static under the circumstances, so to really know...

I'm still dialing it in, but the last jetting really woke it up.  These little guys are quite sensitive to jetting . 

There's no way it's nearly what these numbers are Mike is pulling.  I guess the question begs, are 100cc heads (750 vs. 650) with lower compression than mine and same heads (though I likely have larger valves (?) and a more aggressive cam) equate to 10 hp more than my 650?  Of course he has fuel injection vs. carbs.  I'm just curious about the other differences and what they might be that leads to such greater numbers??

It's awesome what he's pulling! 

[mwrenn]

Oh, I'd say the OHR would blow us both in the weeds.  KD's dynoed at what, low to mid 40's? No contest. We'll find out what the Aero engine is Saturday. The local Hondayamazuki dealer has a dynojet. I'd talked to the kid that runs it last week, and he agreed to do a run at 4500 or so to check cruising mixture, and a run like Mike's for hp and mixture again. Said he'd charge me a half hour. That's more like it.. (Guzzi content) The Local hawg shop said 2 hours minimum. Shirley, he jests.
At any rate, I should get a handle on jetting. Don't want to be too lean..

That will be cool to see what she is putting out Chuck.  Looking forward to the results.  I will be especially interested in your torque numbers!

[oldbike54]

 Boys , all it is is numbers on a piece of paper until we line 'em up 

  Dusty

[mwrenn]

Yep... mine ran about 45 hp on a messed up dyno.  I'm not certain it was fueling as it should as it wasn't nearly right when I got it.  I'm hard pressed to believe the numbers are too static under the circumstances, so to really know...

I'm still dialing it in, but the last jetting really woke it up.  These little guys are quite sensitive to jetting . 

There's no way it's nearly what these numbers are Mike is pulling.  I guess the question begs, are 100cc heads (750 vs. 650) with lower compression than mine and same heads (though I likely have larger valves (?) and a more aggressive cam) equate to 10 hp more than my 650?  Of course he has fuel injection vs. carbs.  I'm just curious about the other differences and what they might be that leads to such greater numbers??



It's awesome what he's pulling! 

Hey Kev, what compression ratio are you running in your Super Lario?  i calculated mine at 9.7:1. 

[mwrenn]

Boys , all it is is numbers on a piece of paper until we line 'em up 

  Dusty

+1 !!!

[oldbike54]

+1 !!!

 Mike , I do believe the other boys are afraid of the Oklahoma Hot Rod 

  Dusty

[kevdog3019]

Hey Kev, what compression ratio are you running in your Super Lario?  i calculated mine at 9.7:1.

Ed says about 11:1 now.
Quote:
I just bumped compression up to ~11:1 and heads flow better now.

[mwrenn]

Mike , I do believe the other boys are afraid of the Oklahoma Hot Rod 

  Dusty

LOL!  I ain't skeered!

[mwrenn]

Ed says about 11:1 now.
Quote:
I just bumped compression up to ~11:1 and heads flow better now.

That's good to know, I have some room left on mine.  Stock Lario heads are 22 cc's, the Imola II heads I used were 20 cc's.  That was after Millenium did their machining.  I could get some thinner head gaskets from Cometic, every .010" less gasket gives me .272:1 compression ratio increase.  When I install the 820cc kit, I think my CR will go down a little....

[Chuck in Indiana]

LOL!  I ain't skeered!

Me, neither..  Dogwalker sez he thinks the CR on the Aero engine is 94, which is probably right. That's about the highest you can run on an airplane with 100 octane fuel. I didn't bother to cc the heads to find out. Figured what's the point?  It is what it is.

[kevdog3019]

skeered?  Hell no!   
Mine's lightest and may stop fastest.  Does that account for something?    I like the 60mph roll on idea. 

[oldbike54]

 Alrighty then , now the smack talk is flying . Cedar Vale next April boys ? Nice long stretch of straight road , we know the local LEO , let's settle this 

  Dusty