gt380 with a featherbed frame? Or a Seeley?
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gt380 with a featherbed frame? Or a Seeley?
Does anyone know of a good frame that would fit a gt380 lump? I was considering making a special. Perhaps with a Seeley or a featherbed or similar. I have no idea what would fit a GT380 motor. Has anyone got experience in this area?
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Re: gt380 with a featherbed frame? Or a Seeley?
If a H2 motor fits, a GT380 will............
Suzuki GSX-R400 GK76A frame
Suzuki GSX-R400 GK76A frame
Garry
I'm addicted to brake fluid, but I know I can stop anytime.
I'm addicted to brake fluid, but I know I can stop anytime.
- tz375
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Re: gt380 with a featherbed frame? Or a Seeley?
Spondon made some nice frames for the Barton GT380 based race bikes. A featherbed is a large and heavy frame. A Seeley might work or a Dresda frame or maybe even an RD350/400 but you would have to check the dimensions.
You could also keep the stock engine cradle and build a new frame around that.
You could also keep the stock engine cradle and build a new frame around that.
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Re: gt380 with a featherbed frame? Or a Seeley?
Hi sportston,
Not an insignificant project
You can fit just about any engine in any frame if you have the engineering, or project management (i.e pay someone else to do it) skills and budget. You are not going to find a turn key solution to a GT380 special but there is a lot of fun to be had in creating one yourself. There are a bunch of outfits that could make you a replica frame (I would go for a Seeley, but I am very biased). If you commissioned a frame the builder would probably use your crankcases + barrels on their jig to establish mounting points and pipe clearances etc.
Starting with only an engine........ you will need deep pockets, maybe in the range of £5000 - £10,000. Sorry about that
Cheers Geoff
Not an insignificant project
You can fit just about any engine in any frame if you have the engineering, or project management (i.e pay someone else to do it) skills and budget. You are not going to find a turn key solution to a GT380 special but there is a lot of fun to be had in creating one yourself. There are a bunch of outfits that could make you a replica frame (I would go for a Seeley, but I am very biased). If you commissioned a frame the builder would probably use your crankcases + barrels on their jig to establish mounting points and pipe clearances etc.
Starting with only an engine........ you will need deep pockets, maybe in the range of £5000 - £10,000. Sorry about that
Cheers Geoff
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Re: gt380 with a featherbed frame? Or a Seeley?
OUCH!!Zunspec4 wrote:Hi sportston,
you will need deep pockets, maybe in the range of £5000 - £10,000. Sorry about that
Cheers Geoff
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Re: gt380 with a featherbed frame? Or a Seeley?
Hmmm. Looks good but i was thinking something that looked a little more 1970s. However, I will think about that one....garry55 wrote:If a H2 motor fits, a GT380 will............
Suzuki GSX-R400 GK76A frame
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Re: gt380 with a featherbed frame? Or a Seeley?
So far a Dresda frame seems likely to offer best value for money, but it will be a long while before i can put my plan into action. Sniff sob
- tz375
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Re: gt380 with a featherbed frame? Or a Seeley?
Or build a jig, buy some Reynolds 531 or 631 or whatever they sell now and make it yourself. Or get some 953 stainless wwich offers an even higher strength to weight according to their website.
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Re: gt380 with a featherbed frame? Or a Seeley?
I have no clue as to the length of the waiting list for a Degens Dresda frame so order now and start savingsportston wrote:So far a Dresda frame seems likely to offer best value for money, but it will be a long while before i can put my plan into action. Sniff sob
When you start with a virgin frame you have an open canvas to do what you want but a bunch of thinking/design/fabrication time to invest (and money)
There is a lot to do starting from this:
Cheers Geoff
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Re: gt380 with a featherbed frame? Or a Seeley?
I did think of making my own but... I don't have the expertise or equipment. I think on something as major as a frame I should leave that to the professionals.
Nice frame Geoff. Is that a seeley?
Nice frame Geoff. Is that a seeley?
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Re: gt380 with a featherbed frame? Or a Seeley?
Hi sportston,sportston wrote:I did think of making my own but... I don't have the expertise or equipment. I think on something as major as a frame I should leave that to the professionals.
Nice frame Geoff. Is that a seeley?
Yes, a Seeley replica frame made for the T/GT 500 engine. These were an original option from Colin Seeley so there are several people who produce replica's (A Tichmarsh frame is the only one officially acknowledged by Colin). There is no fundamental reason why the engine mounts could not be modified for a GT380, or better still incorporated as part of a new frame. A link to my build photos below, you can see some of what was done.
https://flic.kr/s/aHsjCh8pt9
Cheers Geoff
Last edited by Zunspec4 on Sun Mar 12, 2017 11:55 am, edited 1 time in total.
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Re: gt380 with a featherbed frame? Or a Seeley?
I think I'd be looking at something more tunable than a 380, unless you have a Barton liquid cooled 500cc conversion on yours!
Think of how stupid the average person is, then realise that half of them are more stupid than that.
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Re: gt380 with a featherbed frame? Or a Seeley?
Nice Geoff As far as frames go that would be a pretty easy one to build. I really will build my own frame one day. Done more than my fair share of brazing so would be a brazed frame and just clear coatedZunspec4 wrote:I have no clue as to the length of the waiting list for a Degens Dresda frame so order now and start savingsportston wrote:So far a Dresda frame seems likely to offer best value for money, but it will be a long while before i can put my plan into action. Sniff sob
When you start with a virgin frame you have an open canvas to do what you want but a bunch of thinking/design/fabrication time to invest (and money)
There is a lot to do starting from this:
Cheers Geoff
What's your reason for using the 380, do you already have it?
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Re: gt380 with a featherbed frame? Or a Seeley?
Hi John,
That is a photo of my Seeley T500 frame when I first got it. It is sportston who is contemplating a similar project but with a GT380 engine.
Here is a photo of my bike as it was last year.
Cheers Geoff
That is a photo of my Seeley T500 frame when I first got it. It is sportston who is contemplating a similar project but with a GT380 engine.
Here is a photo of my bike as it was last year.
Cheers Geoff
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Re: gt380 with a featherbed frame? Or a Seeley?
Lovely Geoff