Suzuki2Strokes.com

Sundial Moto Sports

Suzuki Two-Stroke Message Board
Suzuki2Strokes.com
It is currently Thu Aug 21, 2014 9:55 pm

All times are UTC - 6 hours




Post new topic Reply to topic  [ 11 posts ] 
Author Message
 Post subject: custom GT750
PostPosted: Wed Dec 08, 2010 10:38 am 
Offline
I likes them jubblies
User avatar

Joined: Wed Oct 15, 2008 11:19 am
Posts: 2118
Location: OL BLIGHTY uk
for those who are interested :wink:
Image
Image
Image

and this is where it came from...
http://www.motorcyclespecs.co.za/model/ ... elunga.htm

_________________
If I wanted to make a life-long career out of
working with the mentally retarded I would
have opened a Harley Davidson Dealership


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Dec 08, 2010 1:38 pm 
Offline
Moto GP
User avatar

Joined: Mon Nov 03, 2008 10:47 am
Posts: 4808
Location: Illinois
Oldies but goodies.


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Dec 08, 2010 6:22 pm 
Online
Moto GP
User avatar

Joined: Fri Oct 24, 2008 5:55 pm
Posts: 3330
Location: Lancaster Pa.
Country: US
Bikes owned: GT750 x2 97 -1200 Bandit 86 GSXR1100
Its a interesting bit of history of the Gt750 but i never have been too thrilled about the tail piece :roll:

_________________
the older i get the faster i was


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Feb 15, 2012 2:28 am 
Offline
Still in the Driveway

Joined: Sun Feb 12, 2012 9:52 am
Posts: 3
Country: Italy
Bikes owned: Suzuki NGT 380 - 3 Suzuki GT 750
Hi!
I am a new member and I am restoring the same model - Suzuki GT 750 Vallelunga - in my workshop.
Nice bike!!!!
Mike


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Feb 15, 2012 8:47 am 
Offline
Moto GP
User avatar

Joined: Mon Nov 03, 2008 10:47 am
Posts: 4808
Location: Illinois
Welcome and you are lucky to have one. Do you live in Europe by any chance?


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Feb 15, 2012 12:50 pm 
Offline
Road race school
User avatar

Joined: Tue Oct 14, 2008 11:15 pm
Posts: 842
Location: Allen, Texas (Dallas)
The motor made pretty good horsepower at 116.

Does anyone know what the mods were to allow the motor to produce such numbers?

_________________
Terry

Maybe poker's not your game, Ike. I know! Let's have a spelling contest~

74 Suzuki GT750 / 74 Suzuki T500 / 75 Suzuki GT380 / 97 & 01 Honda Magna / 03 Kawasaki KX250 / 01 Yamaha WR250F / 03 Yamaha TTR 125L


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Feb 15, 2012 3:55 pm 
Offline
Yeah Man, the Interstate
User avatar

Joined: Thu Oct 23, 2008 3:23 pm
Posts: 602
Location: Medina OH
Country: USA
Bikes owned: 1974 Suzuki GT750
Quote:
Does anyone know what the mods were to allow the motor to produce such numbers?

...I've got a pretty good idea.... :D :D :D


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Feb 15, 2012 5:19 pm 
Offline
Moto GP
User avatar

Joined: Mon Nov 03, 2008 10:47 am
Posts: 4808
Location: Illinois
116 would be slightly more than the figure Suzuki claimed for the TR750/XR11, and with those skinny pipes, it would take a lot of work, big carbs pig ports and few other little tricks.

I suspect that there's a certain artistic license at work there. :roll:


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Feb 15, 2012 8:52 pm 
Offline
Road race school
User avatar

Joined: Tue Oct 14, 2008 11:15 pm
Posts: 842
Location: Allen, Texas (Dallas)
water cooled wrote:
...I've got a pretty good idea.... :D :D :D



What is yours producing now?

_________________
Terry

Maybe poker's not your game, Ike. I know! Let's have a spelling contest~

74 Suzuki GT750 / 74 Suzuki T500 / 75 Suzuki GT380 / 97 & 01 Honda Magna / 03 Kawasaki KX250 / 01 Yamaha WR250F / 03 Yamaha TTR 125L


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Wed Feb 15, 2012 10:16 pm 
Offline
Moto GP
User avatar

Joined: Mon Nov 03, 2008 10:47 am
Posts: 4808
Location: Illinois
Terry,
I had a look at the article on that link, and they appear to have taken the claimed TR750 HP and inserted it into the SAIAD Vallelunga specs. Since the Vallelunga was basically a stock K with pipes, stock carbs and velocity stacks, even if it were ported it would have struggled to make 75HP I suspect. I think it's a simple error on that web site.

That said, there is not a whole lot of info available on that bike and several sites mention a racing version with TR pipes and Krober ignition, so I guess if someone said they had fitted a TR spec motor, I suppose they could claim TR hp levels. I would like to see more historical data out of Italy where they were raced in a domestic championship. One poster on NATS thought that SAIAD had converted a couple of TR750 racers to make them into Vallelungas presumably to build the myth about them being legal in a production based series.

It would be interesting to read the facts - anyone in Italy know the full story?

There's one on the UK SOC site with TR pipes, Delorto carbs and points and very interesting (thick) spacer behind the alternator cover, making wider than ever.

Suzuki Dave has a picture of Fabio Sartini at Santamonica (now known as Misano) and it looks as if it may be a TR in Vallelunga clothing, so the plot thickens.


Top
 Profile  
 
 Post subject: Re: custom GT750
PostPosted: Thu Feb 16, 2012 8:19 am 
Offline
Yeah Man, the Interstate
User avatar

Joined: Thu Oct 23, 2008 3:23 pm
Posts: 602
Location: Medina OH
Country: USA
Bikes owned: 1974 Suzuki GT750
Quote:
What is yours producing now?


Last year, it produced a peak RWHP of 122.5 I agree with Richard, those carbs and pipes look a little small to support the kind of porting needed to get to 116 even if that where BHP.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 11 posts ] 

All times are UTC - 6 hours


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group
Sundial Moto Sports forum © by Eric F. Kalamaja
Suzuki2Strokes.com