Topica Loopframe_Guzzi Archive


Subject: Re: V7 racer project, please help with ideas!

Author: MGcoo-@aol.com

Date: Jul 6, 2004, 8:50 AM

Post ID: 1717106713




In a message dated 7/4/04 5:05:17 PM, gavi-@xtra.co.nz writes:

 Hiya Guzzi people,
I am thinking of making a classic racer out of it!
It is more of a project than a racer as I am not fast on the track and
I am doing it for fun and cheaply... ie I will not be spending money buying
fancy parts to go a little bit faster when I standard Guzzi part will do:)
Please help me design the beast!

Gavin
I currently race a Loopframe Guzzi. Sounds like you have the right idea,
keeping the bike as stock as possible not only saves you money but increases the
fun, the stock motor will be more reliable & you will spend more time on the
track with less time working on it. Below is a timeline of changes to the bike
& what the outcome was.

It started out as a stock V-700 motor, lightened flywheel, four speed
gearbox & front drum brake. At the time I was racing a production class that allowed
very few modifications. The one thing you will have to do reroute the exhaust
system, in stock form it drags to easily for track use. The front drum brake
when set up properly worked well but started fading toward the end of the
races & required adjustment after every track session. The front springs were to
weak allowing the front end to collapse to the point of the front engine
mounting bolt dragging. We grafted stiffer springs from some other shocks onto the
front end with some improvement.

Improvements for the second season included the following:

Ambassador motor (757cc) in place of the 700cc, good for a 5HP increase.
A 5 speed gear box replaced the 4, I consider this one of the best
improvements to the bike. While not increasing top speed, it did allow me to better
match RPMs & have better drive out of the turns.
A single disk front end from a later model Guzzi, fitted with the after
market damping cartridges & Wirth springs replaced the drum brake. A Brembo F09
caliper gave me a larger braking surface than the standard F08. This was another
good improvement, the front suspension was a little better, braking was easy &
remained consistent through out the race.

Only a couple of changes for the third season:
A frame mounted fairing to meet the requirements of a new class I was bumping
into.
Mikuni carbs, port matched heads, larger diameter header pipes & megaphone
exhaust all combined to give me a 10HP increase.

Photos of the bike in its current setup are on Mike's website:
http://www.classicguzzi.com/id84.htm
If you have any questions feel free to contact me, I will be glad to help in
any way I can.
Ken
Asheville, NC




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