Author Topic: AF1's Turbocharged V7 Scrambler merged threadfest  (Read 15861 times)

Offline jas67

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« Last Edit: December 09, 2016, 10:06:24 AM by oldbike54 »
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Offline rocker59

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #1 on: April 26, 2016, 09:06:55 PM »
That's pretty badass.  I really like the tail section, too...
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Offline Triple Jim

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #2 on: April 26, 2016, 09:11:22 PM »
Very cool, but...   ... after all the superfluous exhaust wrap I've seen, here's an application that can really use exhaust insulation between the cylinders and the turbo, and there is none!
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Offline ITSec

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #3 on: April 26, 2016, 09:27:47 PM »
Tres cool - but with tires that textured, shouldn't that front fender be lifted a bit?  :thumb:
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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #3 on: April 26, 2016, 09:27:47 PM »

Offline Zinfan

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #4 on: April 26, 2016, 10:48:35 PM »
Hard to tell from the photos but it looks like your right leg would be right on that exhaust pipe?  Plus rear sets and those high handlebars?  Does that work in real life?

Offline fossil

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #5 on: April 27, 2016, 12:13:55 AM »
The moderate increase in power and torque of the V9 about the V7 is caused by the motor case of the smallblock. The case will prohibit a substantial increase in power in this arrangement. I donÂīt see a robust engine here.
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Offline Zoom Zoom

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #6 on: April 27, 2016, 04:16:10 AM »
Well, the article did say they sourced a salvaged bike, so nothing really lost. A fun project. Practical? I don't know. Cool? Oh yeah!

It will be fun to see the dyno results, and hear the turbo spool up.

John Henry

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #7 on: April 27, 2016, 04:44:44 AM »
 Interesting, a turbo supercharged bike dressed up like a flat tracker......No performance figures are given or suggested? Many custom shops will build a bike like this for display ..Rolling art....

Offline Darren Williams

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #8 on: April 27, 2016, 06:27:23 AM »
Saw it (and heard it run) while chatting with the owner/builder when at AF1 Racing's MotoGP party.  Pretty cool exercise in building, but as the owner was asked why, said something to the effect of "just something cool to do".  And it was quite loud, almost to the point of not being able to clearly hear the turbo spool up.

I'd like to take for a run!
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Offline ohiorider

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #9 on: April 27, 2016, 06:54:27 AM »
Interesting article and nice pohotos.  Thanks!  I got a chuckle out of the Cycle World's writeup.  Quote ".... So, a low mileage, salvage-find V7 was sourced. I can only guess it was most likely totaled as the result of a violent tip over while the owner was adjusting their selfie stick outside a denim emporium.
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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #10 on: April 27, 2016, 07:45:53 AM »
Saw it (and heard it run) while chatting with the owner/builder when at AF1 Racing's MotoGP party.  Pretty cool exercise in building, but as the owner was asked why, said something to the effect of "just something cool to do".  And it was quite loud, almost to the point of not being able to clearly hear the turbo spool up.

I'd like to take for a run!

  was it ridden at all?

Offline tonUPRacer

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #11 on: April 27, 2016, 08:54:23 AM »
That's pretty badass.  I really like the tail section, too...

I believe that is the Guzzi Record Tail section painted black.
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Offline cruzziguzzi

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #12 on: April 27, 2016, 12:11:13 PM »
I dig it.

From a styling exercise POV, from a technical exercise POV or in simply coping with the limitations of the Herron head... I dig it.

Sometimes artificially aspirating an engine isn't about raw performance but rather smoothing the edges.

Given the lack of chamber options in a herron, huffin' the motor through air pumps or nitrous is about all that's left.

Sadly, one still must contend with the architecture of the rest of the motor and the limitations of the drive-line in really trying to make the small block scream.



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Offline tazio

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #13 on: April 27, 2016, 06:13:35 PM »
What's next?   :shocked:


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Offline Dogwalker

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #14 on: April 28, 2016, 03:56:26 AM »
The moderate increase in power and torque of the V9 about the V7 is caused by the motor case of the smallblock. The case will prohibit a substantial increase in power in this arrangement. I donīt see a robust engine here.
?
The moderate increase in power and torque of the V9 about the V7 is caused by the fact that they evolved a two valves, long stroke, rods and rockers engine in a two valves, long stroke, rods and rockers engine.

Offline fossil

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #15 on: April 28, 2016, 05:35:16 AM »
?
The moderate increase in power and torque of the V9 about the V7 is caused by the fact that they evolved a two valves, long stroke, rods and rockers engine in a two valves, long stroke, rods and rockers engine.
Yes, when we talk about trying to get that thing up to 100 hp or so. There was an interesting discussion of the engine in a German bike magazine (mo), that happens to love Moto Guzzi. Another thing that limits the power output of the engine is of course the force of circumstances to comply with Euro 4 - as an air-cooled engine. In the moment I know of no other air-cooled engine that achieves this. The CB-1100 for example does not.

Interesting: it is exactly the two-valve-pushrod-design that allows this. There are air channels tunneling through the cylinder heat that allow fresh air washing round hot spots like the exhaust valves. And the correct layout of the Guzzi V2 engine helps...
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Offline Darren Williams

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #16 on: April 28, 2016, 06:07:48 AM »
  was it ridden at all?

No, just started and rev'd a bit.
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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #17 on: April 28, 2016, 07:23:23 AM »
Saw it (and heard it run) while chatting with the owner/builder when at AF1 Racing's MotoGP party.  Pretty cool exercise in building, but as the owner was asked why, said something to the effect of "just something cool to do".  And it was quite loud, almost to the point of not being able to clearly hear the turbo spool up.

I'd like to take for a run!

 
No, just started and rev'd a bit.

 So it manages to be loud and completely impractical at the same time ? Hell , install a set of ape hangers or clip ons to finish it off  :shocked:

 Dusty

Offline rocker59

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #18 on: April 28, 2016, 08:13:58 AM »
I don't know, man...  It looks like fun, to me...   :bike-037:
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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #19 on: April 28, 2016, 08:29:04 AM »
I don't know, man...  It looks like fun, to me...   :bike-037:

 OK it is a free country  :laugh: Here is my observation , a turbocharged scrambler style motorbike with
rearset footpegs and knobbly tires . Zero continuity , way too many "styles" to be a "piece" , more of a doodle in a JR High school students sketchbook .
 
 Dusty

Offline rocker59

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #20 on: April 28, 2016, 08:32:47 AM »
Scrambler?  Nah...

Looks like a turbo'd flat tracker, to me...



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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #21 on: April 28, 2016, 08:43:55 AM »
Scrambler?  Nah...

Looks like a turbo'd flat tracker, to me...

 Well OK then , but trackers don't run knobbly tires . Certain styling cues when combined simply don't work for me . A tracker style bike needs larger diameter hoops with skinnier tires . Just my tastes , no one else need agree .

 Dusty

Offline Waltr

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #22 on: April 28, 2016, 08:52:42 AM »
OK it is a free country  :laugh: Here is my observation , a turbocharged scrambler style motorbike with
rearset footpegs and knobbly tires . Zero continuity , way too many "styles" to be a "piece" , more of a doodle in a JR High school students sketchbook .
 
 Dusty

  Unfortunately this is what passes for real engineering--it is an attempt to gain press and opinion.  Nothing wrong with that in a sense but just another reality show exercise. 

Maybe that is too harsh and not really an attempt at something serious.
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Offline Dogwalker

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #23 on: April 28, 2016, 08:57:11 AM »
Yes, when we talk about trying to get that thing up to 100 hp or so.
The situation of the SB is really similar to that of the Ducati Pantah case, that born 350cc and was upgraded until  1000cc liquid cooled (the Desmoquattro is a Pantah case with liquid cooled cylinders) and 1100 cc air cooled.
To get the SB up to 100 hp means to rebore the engine up to 1200cc (and so to enlarge the space between the headbolts, an operation that, in the BB, had been already done two times) and to adopt 4 valves OHC heads. obviously something has to be redesiged (IE, the oil ducts, but they had been redesigned for the currrent 850 too), but there is nothing inherent to the case that prevent it's upgrading. The case is, quite literally, only a case.

Offline steven c

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #24 on: April 28, 2016, 11:11:35 AM »
 At least it addresses the low on power issue.
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Offline swmckinley54

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #25 on: April 28, 2016, 12:36:51 PM »
Brent from AF1 built this and it was an exercise in fun for him. The welds on the exhaust are a work of art in themselves. He was also the engine build and crew for the Pikes Pike run for Ducati and the crew chief for the Victory Project 156 Pikes Peak Hill Climb. Great guy.
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oldbike54

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #26 on: April 28, 2016, 01:21:22 PM »
Brent from AF1 built this and it was an exercise in fun for him. The welds on the exhaust are a work of art in themselves. He was also the engine build and crew for the Pikes Pike run for Ducati and the crew chief for the Victory Project 156 Pikes Peak Hill Climb. Great guy.

 Mr 54 , no one is casting aspersions on the builder , and certainly AF1 is a great shop . It just seems to be an odd juxtaposition of styles and purposes .

 Dusty

Offline Guzzistajohn

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #27 on: April 28, 2016, 01:39:18 PM »
Mr 54 , no one is casting aspersions on the builder , and certainly AF1 is a great shop . It just seems to be an odd juxtaposition of styles and purposes .

 Dusty


Geeze dusty, don't go all Lannis on us. It's not YOUR bike :grin:
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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #28 on: April 28, 2016, 01:42:47 PM »

Geeze dusty, don't go all Lannis on us. It's not YOUR bike :grin:

 So do you like it ?  :evil:

 Dusty

Offline Guzzistajohn

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Re: AF1's Turbocharged V7 Scrambler/Tracker
« Reply #29 on: April 28, 2016, 01:50:51 PM »
So do you like it ?  :evil:

 Dusty

No, it's just silly to me, can't ride it on the street, it would get out run and out handled by a vintage flat track bike. I really just wanted to use the "go Lannis" line on 'ya  :violent1:
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