I just had to photo these lc's..... should have been us 20 years ago.The fat old FZ really was alarmingly fat in road trim with loads of scope for weight loss.
looking at various data sources for the FZ, threw up varying results so i have decided to go for the most sensible looking one. 222kg wet sounds about right and feels about right compared to similar machines I am familiar with.
So this gives us an approximate starting point.... Thunderbikes rules ( www.thunderbikeuk.com )are formulated to give close racing, which certainly worked last season!.... one of the rules states a power to weight ratio limit of 1bhp per 1.814kg.
We estimate we can shed at least 20 kg, this will allow max bhp to be around 110.
Again, data sources are varied with the majority stating around 100. We think it's more likely to be a fair bit less, maybe as much as 80bhp, so there's plenty of room to shed as much weight as we can.
As far as the engine goes, we think that short of doing the valve clearances and filter, plugs and leads, we would be better off leaving any internal work for now and trying to gain bhp through pipes, airbox mods and we may try the YZF carbs. Early inspection indicates they will do the job.
we would idealy aquire a second motor and work on that later in the year. Starting with the motor we have for now means less early expense and time. The money would be far better spent on a rear shock and any other suspension upgrades. Getting this beast to handle is going to be priority.
we would idealy aquire a second motor and work on that later in the year. Starting with the motor we have for now means less early expense and time. The money would be far better spent on a rear shock and any other suspension upgrades. Getting this beast to handle is going to be priority.
This place is gonna be busy, and Phil has the Laverda to sort yet!!
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