VFRDiscussion ARCHIVE / READ-ONLYREAD-ONLY

Vfr'837'f Update

27 posts Started 14 Jan 2007 Last recovered post 25 Feb 2007 Wayback Machine snapshot 1 Apr 2007

#1
A friend copied my Two brothers racing Exhaust system in Titanium !
Complete exhaust incl. muffler is only 2.6KG... (originale OEM system -1990-1993 VFR750F- = almost 20KG)

Also the mechanical waterpump has been removed. Will run an electrical.
The frame for the topfairing has been modified (less weight).

Check pics:
[exhausts; blue one is the Titanium]
[image: gallery_668_420_43007.jpg]
uitlaten.TBR.vs.titanium.01Xklein.JPG

[image: gallery_668_420_34569.jpg]
zijkant.14-01-2007.08aklein.JPG

[image: gallery_668_420_61256.jpg]
achterzijde..02Aklein.JPG

[image: gallery_668_420_17445.jpg]
subframe.01Aklein.JPG

[image: gallery_668_420_6929.jpg]
achterzijde..02klein.JPG

#2
Very nice, but when are you going to ride this bike again? You've been working on it since I've been here!

I'm sure someone else would be interested in a titanium header if your friend wanted to make more... (IMG:style_emoticons/oldemoticons/warranty.gif)
#3
Yes Sebspeed, after almost 5 years the bike isn't finished...

Only the headlamp is still original. All other parts have been modified or replaced.
But this year it will run on the road again!

Several people already asked my friend to produce a custom made titanium exhaust.
Unfortunately he still has a lot of work to do for someone with a VFR (IMG:style_emoticons/oldemoticons/tongue.gif)





#4
SEBSPEED, Jan 14 2007, 11:31 AMVery nice, but when are you going to ride this bike again? You've been working on it since I've been here!

I'm sure someone else would be interested in a titanium header if your friend wanted to make more... (IMG:style_emoticons/oldemoticons/warranty.gif)


Cha Ching!!
#5
How much weight have you taken off the original weight?
#6
Hobie1dog, Jan 15 2007, 01:31 AMHow much weight have you taken off the original weight?



I have taken off 150 Lbs (68KG), the bike is now 379Lbs (172KG). (the weight of a 2006 Fireblade is 459 Lbs (208KG) -Wet- )
The weight of a completely standard VFR750F (90-93) with centre stand is 529 Lbs / 240 KG (-Wet-; incl. fuel, battery, oil, water )



Weight decrease by:

-magnesium rims
-exhaust system
-front forks (Fireblade Upside down)
-fuel tank (alloy)
-alloy subframe
-hawker battery
-centre stand removed
-rearsets
-tensiongears in engine removed
-race alternator
-VFR400 hub
-carbon airbox
-race seat
-mechanical clutch
etc.


VFR750F Standard: 90HP (at the rear wheel) 240KG. Every HP has to carry 5.86 Lbs
My VFR837F: 125HP and 172KG. Every HP has to carry 3.04 Lbs







#7
Holy moly that is awesome!! I wish I could have something like that for my '94!


That bike sounds like it is going to kick a@%!!! (IMG:style_emoticons/oldemoticons/fing02.gif)
#8
Exhaust is ready, frame modified.
Only the headlight is still standard and will stay standard... (as long as I cannot get a lighter one with the same looks)




[image: gallery_668_420_291518.jpg]
IMG_0203.JPG

[image: gallery_668_420_382891.jpg]
IMG_0197.JPG


IMG_0204.JPG

#9
vfroem, Jan 15 2007, 06:37 AM
Hobie1dog, Jan 15 2007, 01:31 AMHow much weight have you taken off the original weight?



I have taken off 150 Lbs (68KG), the bike is now 379Lbs (172KG). (the weight of a 2006 Fireblade is 459 Lbs (208KG) -Wet- )
The weight of a completely standard VFR750F (90-93) with centre stand is 529 Lbs / 240 KG (-Wet-; incl. fuel, battery, oil, water )



Weight decrease by:

-magnesium rims
-exhaust system
-front forks (Fireblade Upside down)
-fuel tank (alloy)
-alloy subframe
-hawker battery
-centre stand removed
-rearsets
-tensiongears in engine removed
-race alternator
-VFR400 hub
-carbon airbox
-race seat
-mechanical clutch
etc.


VFR750F Standard: 90HP (at the rear wheel) 240KG. Every HP has to carry 5.86 Lbs
My VFR837F: 125HP and 172KG. Every HP has to carry 3.04 Lbs


Holy crap! Enough said.
#10
I still would like a left exit, high mount on my 97 VFR750F but suspect that this setup is just a tad outside affordable......

Sebring used to make them as well, with focus on the word used to..... (IMG:style_emoticons/oldemoticons/wink.gif)
#11
Is the gas tank an aluminum tank? How much weight did it save you?

Who makes the one piece rear solo body section?

How much weight did the replacement rear sub frame save? It is out of aluminum too?


#12
vfroem, Jan 15 2007, 06:37 AM
Hobie1dog, Jan 15 2007, 01:31 AMHow much weight have you taken off the original weight?



I have taken off 150 Lbs (68KG), the bike is now 379Lbs (172KG). (the weight of a 2006 Fireblade is 459 Lbs (208KG) -Wet- )
The weight of a completely standard VFR750F (90-93) with centre stand is 529 Lbs / 240 KG (-Wet-; incl. fuel, battery, oil, water )



Weight decrease by:

-magnesium rims
-exhaust system
-front forks (Fireblade Upside down)
-fuel tank (alloy)
-alloy subframe
-hawker battery
-centre stand removed
-rearsets
-tensiongears in engine removed
-race alternator
-VFR400 hub
-carbon airbox
-race seat
-mechanical clutch
etc.


VFR750F Standard: 90HP (at the rear wheel) 240KG. Every HP has to carry 5.86 Lbs
My VFR837F: 125HP and 172KG. Every HP has to carry 3.04 Lbs


Wow,

This is some amazing work there.
Please do not take this as disrespect, but I am curious... Why did you deside to do all that to a VFR?
Why not start off with a bike that is more suited to racing (IMHO), like GSXR or similar?
I can imagine what kind of monster you could have had if you started off with a GSXR750.
Or am I totally misunderstanding your intent? - Please set me straight if this is so.
#13
vfroem, Feb 5 2007, 12:08 PMExhaust is ready, frame modified.
Only the headlight is still standard and will stay standard... (as long as I cannot get a lighter one with the same looks)




[image: gallery_668_420_291518.jpg]
IMG_0203.JPG

[image: gallery_668_420_382891.jpg]
IMG_0197.JPG


IMG_0204.JPG



Sweet,
please keep us totally informed of all your progress and final results! (IMG:style_emoticons/oldemoticons/fing02.gif)
#14
Minus 150 lbs...... wow. That thing is going to haul. (IMG:style_emoticons/oldemoticons/wheel.gif)
#15
Why not start off with a bike that is more suited to racing (IMHO), like GSXR or similar?


I know this one! GSXRs don't have 1000cc V4s! : )

(and it's no fun fitting inverted forks to a bike that already has inverted forks)
#16
@hobie1dog:
It is a aluminum -standard- RC30 gas tank, weight saving of the tank; don't know
The rearseat unit came is also RC30. But at www.pferrer.de you can find units you can use without modifying your RC36 subframe
Yes, the rear sub frame is aluminum too. it is really light !

@Rice: like The Phantom already said: Suzuki does not have a V4 sport bike.
I also want to have something different. There are already lots of special GSX-R's. VFR-F's with huge power and highly modded are not so common.
About 5 years ago I started this project with 2 goals; as much power as possible (and still reliable) and as light as possible.
#17
vfroem, Feb 5 2007, 06:50 PM@hobie1dog:
It is a aluminum -standard- RC30 gas tank, weight saving of the tank; don't know
The rearseat unit came is also RC30. But at www.pferrer.de you can find units you can use without modifying your RC36 subframe
Yes, the rear sub frame is aluminum too. it is really light !

@Rice: like The Phantom already said: Suzuki does not have a V4 sport bike.
I also want to have something different. There are already lots of special GSX-R's. VFR-F's with huge power and highly modded are not so common.
About 5 years ago I started this project with 2 goals; as much power as possible (and still reliable) and as light as possible.


Got it.
It looks like you are nearing the completion.
I would love to find out how it turnes out.
Good lucK!
#18
vfroem, Feb 5 2007, 06:50 PM@hobie1dog:
Yes, the rear sub frame is aluminum too. it is really light !


do you have any pictures of the subframe? Did you make it out of square aluminum tubing?

Thanks again for showing us your project. It is fantastic...inspirational. (IMG:style_emoticons/oldemoticons/fing02.gif)
#19


Subframe is a modified RC30 unit. (aluminum)

[image: gallery_668_420_751456.jpg]
IMG_0209.JPG

[image: gallery_668_420_157587.jpg]
IMG_0208.JPG

#20
GSXR's are a dime a dozen. I thinks its cool, so will lots of others at the track. Bring a Gsxr and your just part of the herd.
#21
Next modification should be to change your exhaust over to an underseat system....all in titanium again. (IMG:style_emoticons/oldemoticons/fing02.gif)

The picture of the subframe you have...is it the original steel one? Did you replace it with an aluminum unit?
#22
Hobie1dog, Feb 10 2007, 05:19 AMNext modification should be to change your exhaust over to an underseat system....all in titanium again. (IMG:style_emoticons/oldemoticons/fing02.gif)

The picture of the subframe you have...is it the original steel one? Did you replace it with an aluminum unit?


The original is indeed a steel one. The -original- RC30 aluminum is really light.
#23
Sweet work. some on here think if you remove 100 lbs from a VFR it becomes a CBR (IMG:style_emoticons/oldemoticons/tongue.gif) . still looks VFR-ish to me! im ready for the finished product pictures!
#24
What did you need to modify to fit the VFR400 hub?

What parts did you use to convert the hydro clutch to cable and do you have part numbers?

Where can I get the carbon fron sprocket half cover?

Sweet work (IMG:style_emoticons/oldemoticons/fing02.gif)
#25
shrek, Feb 25 2007, 03:33 AMWhat did you need to modify to fit the VFR400 hub?

What parts did you use to convert the hydro clutch to cable and do you have part numbers?

Where can I get the carbon fron sprocket half cover?

Sweet work (IMG:style_emoticons/oldemoticons/fing02.gif)


Thanks !

I bought the mechanic cable clutch: it is made by Thorsten Durbahn incl. carbon front sprocket cover: www.durbahn.de

VFR400 Hub; the width is different, you only have to fill the space between the parts.
#26
Where did you get those aftermarket rearsets from? It's something that I've been looking for, and haven't had any success. Your bike looks great btw!!!
#27
douglasthecook, Feb 25 2007, 06:25 PMWhere did you get those aftermarket rearsets from? It's something that I've been looking for, and haven't had any success. Your bike looks great btw!!!


Thanks ! (IMG:style_emoticons/oldemoticons/smile.gif)

The rearsets are from the brand "MR" they were fitted on a VFR I bought 5 years ago.
Don't know were they are for sale.

End of thread · 27 posts recovered Wayback Machine snapshot 1 Apr 2007