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Author Topic: Building of a CB500 classic racer  (Read 203968 times)

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Offline Howell

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Re: Building a CB500 classic racer
« Reply #125 on: February 18, 2010, 11:15:35 am »
Since the weekend I worked every free our on the bike and now he is nearly ready.
Just a few little things to do and and I hope to start it saturday.
Fotoimpression:



















« Last Edit: February 19, 2010, 02:50:00 am by Howell »
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Offline westondc

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Re: Building a CB500 classic racer
« Reply #126 on: February 18, 2010, 11:20:29 am »
wowzer! looks pretty damn sweet! hope you endup posting some videos of this bike running. i really want to hear that exhaust. did i miss i post letting us know what exhaust that is?
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Offline lordmoonpie

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Re: Building a CB500 classic racer
« Reply #127 on: February 18, 2010, 11:21:45 am »
Nice cutaway work around the oil pump Howell - must get my hacksaw out and try the same!
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #128 on: February 18, 2010, 11:23:45 am »
Quote from: westondc on February 18, 2010, 11:20:29 am
wowzer! looks pretty damn sweet! hope you endup posting some videos of this bike running. i really want to hear that exhaust. did i miss i post letting us know what exhaust that is?

Very silent exhaust  max 103 db, the brand is WRP light.

« Last Edit: February 18, 2010, 11:27:01 am by Howell »
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Offline turboguzzi

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Re: Building a CB500 classic racer
« Reply #129 on: February 18, 2010, 01:23:36 pm »
nice!

remember the few days before finishing mine and starting it, could hardly contain the excitment.

on top of that, i started it up first time one day before my first race....

what is the length of the rear shock?

complimenti

TG
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Offline Kemp

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Re: Building a CB500 classic racer
« Reply #130 on: February 18, 2010, 02:39:06 pm »
Beautiful! What is the ready to race weight of your 500?
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Offline kos

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Re: Building a CB500 classic racer
« Reply #131 on: February 18, 2010, 02:45:46 pm »
Quote from: Howell on February 18, 2010, 11:23:45 am
Quote from: westondc on February 18, 2010, 11:20:29 am
wowzer! looks pretty damn sweet! hope you endup posting some videos of this bike running. i really want to hear that exhaust. did i miss i post letting us know what exhaust that is?

Very silent exhaust  max 103 db, the brand is WRP light.



Why such a large modern canister exhaust muffler? Takes away from the beautiful chassis engine work, in my humble opinion.  Our CR750 recorded the highest sound level ever at Barber Motorsports Park at 112 DB and we were proud to have that recognition.  Do you have some  crazy rules where you race for Classic or Vintage bikes?

Too bad...



Kos
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Offline Rod

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Re: Building a CB500 classic racer
« Reply #132 on: February 19, 2010, 01:54:32 am »
Quote from: kos on February 18, 2010, 02:45:46 pm
Quote from: Howell on February 18, 2010, 11:23:45 am
Quote from: westondc on February 18, 2010, 11:20:29 am
wowzer! looks pretty damn sweet! hope you endup posting some videos of this bike running. i really want to hear that exhaust. did i miss i post letting us know what exhaust that is?

Very silent exhaust  max 103 db, the brand is WRP light.



Why such a large modern canister exhaust muffler? Takes away from the beautiful chassis engine work, in my humble opinion.  Our CR750 recorded the highest sound level ever at Barber Motorsports Park at 112 DB and we were proud to have that recognition.  Do you have some  crazy rules where you race for Classic or Vintage bikes?

Too bad...



Kos

UK regs are 105db, has been for a while I think but now being more strictly enforced. For 750's & 600's 4stroke, noise level is measured at 7000 rpm. I understand that the Hailwood replica 500's with 4 exhausts (which have to resemble the originals) have found it particularly difficult to hit 105.
« Last Edit: February 19, 2010, 01:59:00 am by Rod »
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #133 on: February 19, 2010, 02:26:05 am »
Quote from: turboguzzi on February 18, 2010, 01:23:36 pm
nice!

remember the few days before finishing mine and starting it, could hardly contain the excitment.

on top of that, i started it up first time one day before my first race....

what is the length of the rear shock?

complimenti

TG

The length is 35 cm and still you can adjust them longer.
See the arrow.
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #134 on: February 19, 2010, 02:29:53 am »
Quote from: kos on February 18, 2010, 02:45:46 pm
Quote from: Howell on February 18, 2010, 11:23:45 am
Quote from: westondc on February 18, 2010, 11:20:29 am
wowzer! looks pretty damn sweet! hope you endup posting some videos of this bike running. i really want to hear that exhaust. did i miss i post letting us know what exhaust that is?

Very silent exhaust  max 103 db, the brand is WRP light.



Why such a large modern canister exhaust muffler? Takes away from the beautiful chassis engine work, in my humble opinion.  Our CR750 recorded the highest sound level ever at Barber Motorsports Park at 112 DB and we were proud to have that recognition.  Do you have some  crazy rules where you race for Classic or Vintage bikes?

Too bad...



Kos

Indeed we have crazy rules in Holland because of the environment.
I would like to have four megaphones but that's not allowed , we may not produce more then 103 db.
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #135 on: February 19, 2010, 02:46:16 am »
Quote from: Kemp on February 18, 2010, 02:39:06 pm
Beautiful! What is the ready to race weight of your 500?

I really don't know , I hope about 140/145 kg.
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Offline turboguzzi

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Re: Building a CB500 classic racer
« Reply #136 on: February 19, 2010, 04:24:13 am »
Quote from: Howell on February 19, 2010, 02:46:16 am
Quote from: Kemp on February 18, 2010, 02:39:06 pm
Beautiful! What is the ready to race weight of your 500?

I really don't know , I hope about 140/145 kg.

Howell, i ended up with 142 kg, so with all the weight you took form the crank, RD forks, ally triple clamps, i think you should be bellow 140. not so sure how much th efull fairing weights though. I run only  a half faring.

350mm is a good length, that's where i am right now.

TG
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Offline lordmoonpie

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Re: Building a CB500 classic racer
« Reply #137 on: February 19, 2010, 11:59:10 am »
Quote from: kos on February 18, 2010, 02:45:46 pm

Why such a large modern canister exhaust muffler? Takes away from the beautiful chassis engine work, in my humble opinion.  Our CR750 recorded the highest sound level ever at Barber Motorsports Park at 112 DB and we were proud to have that recognition.  Do you have some  crazy rules where you race for Classic or Vintage bikes?

Too bad...



Kos
Yeah it's a shame for sure Mark - as Rod says we're stuck at 105dB in the UK and I can't even hit that on my CB450 twin and that has baffles in the exhaust. No idea what the CR750 will make but I've almost given up on some circuits becasue the locals cannot operate a noise meter well enough to prove what you're putting out. They don't understand that different engines should be tested at different revs and that you make allowances for different temperatures etc. Shame. My modern by comparison Moriwaki VTR was putting out 112bhp and got me banned at the last track day I went to - now have some very horrible looking bolt in baffles to get around the noise test.

...of course once they put that noise test passed sticker on the bike, it's only two quick bolts to take the baffles out again and hear what God and Mr Honda intended you to hear  ;D
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #138 on: February 20, 2010, 10:31:17 am »
Quote from: kos on February 18, 2010, 02:45:46 pm
Quote from: Howell on February 18, 2010, 11:23:45 am
Quote from: westondc on February 18, 2010, 11:20:29 am
wowzer! looks pretty damn sweet! hope you endup posting some videos of this bike running. i really want to hear that exhaust. did i miss i post letting us know what exhaust that is?

Very silent exhaust  max 103 db, the brand is WRP light.



Why such a large modern canister exhaust muffler? Takes away from the beautiful chassis engine work, in my humble opinion.  Our CR750 recorded the highest sound level ever at Barber Motorsports Park at 112 DB and we were proud to have that recognition.  Do you have some  crazy rules where you race for Classic or Vintage bikes?



Too bad...



Kos
We have the intention to do also some Belgium classic races , and there is no sound limit.
Specially for those races I will build an open 4 in 1.
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #139 on: February 20, 2010, 11:12:06 am »
First time starting:


http://www.youtube.com/watch?v=uPCNO0YRQFI

The bike,the builder and the rider , my son Yrjo.







« Last Edit: March 01, 2010, 12:52:02 pm by Howell »
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Offline bwaller

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Re: Building a CB500 classic racer
« Reply #140 on: February 20, 2010, 11:35:37 am »
How does that feel?  ;D


Well done.
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #141 on: February 20, 2010, 11:52:03 am »
Quote from: bwaller on February 20, 2010, 11:35:37 am
How does that feel?  ;D


Well done.

It feels like the first time I made love. ;D
« Last Edit: February 20, 2010, 12:12:34 pm by Howell »
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Offline livefast_dieold

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Re: Building a CB500 classic racer
« Reply #142 on: February 21, 2010, 03:44:59 am »
Quote from: Howell on February 20, 2010, 11:52:03 am
Quote from: bwaller on February 20, 2010, 11:35:37 am
How does that feel?  ;D


Well done.

It feels like the first time I made love. ;D

 ;) ;)
Congrats!!!
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Offline paulages

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Re: Building a CB500 classic racer
« Reply #143 on: February 21, 2010, 11:47:03 am »
beautiful! sounds like it revs nice and quick. good job!
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Offline Sam Green Racing

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Re: Building a CB500 classic racer
« Reply #144 on: February 22, 2010, 07:36:39 am »
Quote from: Howell on February 20, 2010, 11:52:03 am
Quote from: bwaller on February 20, 2010, 11:35:37 am
How does that feel?  ;D


Well done.

It feels like the first time I made love. ;D

So the bike is pregnant Rene. ;D ;D ;D ;D ;D ;D ;D

can I have one of the babies :D :D :D :D :D :D

Sam. ;)
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #145 on: February 22, 2010, 11:08:14 am »
Quote from: SamCB750A on February 22, 2010, 07:36:39 am
Quote from: Howell on February 20, 2010, 11:52:03 am
Quote from: bwaller on February 20, 2010, 11:35:37 am
How does that feel?  ;D


Well done.

It feels like the first time I made love. ;D

So the bike is pregnant Rene. ;D ;D ;D ;D ;D ;D ;D

can I have one of the babies :D :D :D :D :D :D

Sam. ;)

Sorry Sam,

I wish I could make them , but for 27 years ago they did this to me:
Wikepedia:Vasectomy is a minor surgical procedure wherein the vasa deferentia of a man are severed, and then tied/sealed in a manner such to prevent sperm from entering the seminal stream (ejaculate).
Since that time......my only hobby is Honda  ;D
« Last Edit: February 22, 2010, 01:01:10 pm by Howell »
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Offline Sam Green Racing

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Re: Building a CB500 classic racer
« Reply #146 on: February 22, 2010, 10:46:25 pm »
 ;D ;D ;D ;D ;D ;D ;D
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Offline JAG

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Re: Building a CB500 classic racer
« Reply #147 on: February 23, 2010, 02:06:18 pm »
What did you use on the points cover there??
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Offline sangyo soichiro

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Re: Building a CB500 classic racer
« Reply #148 on: February 23, 2010, 02:12:20 pm »
Very impressive.  I'm going to nominate this for BOTM next month, if that's okay.
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Offline Howell

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Re: Building a CB500 classic racer
« Reply #149 on: February 23, 2010, 11:27:24 pm »
Quote from: soichiro on February 23, 2010, 02:12:20 pm
Very impressive.  I'm going to nominate this for BOTM next month, if that's okay.

That's okay.
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