Author Topic: Building of a CB500 classic racer (Read 209317 times)

Retro Rocket · « **Reply #225 on:** March 17, 2010, 03:39:58 AM »

Quote

2 pics of Race Rods we have had made here in the UK. Company that made them says they are as strong as Carrillos but cheaper.

Tell me more about the rods please....

I am very interested..

Mick

Rod · « **Reply #226 on:** March 17, 2010, 04:46:08 AM »

I've got a really bad case of piston-envy now. Are those Arrow Rods by any chance?

bwaller · « **Reply #227 on:** March 17, 2010, 05:17:42 AM »

Hey Colin, now you're just showing off!

Definitely all the go-fast stuff you'll need......well done.

turboguzzi · « **Reply #228 on:** March 17, 2010, 08:22:06 AM »

Quote from: retro rocket on March 17, 2010, 03:39:58 AM

Quote
2 pics of Race Rods we have had made here in the UK. Company that made them says they are as strong as Carrillos but cheaper.

Tell me more about the rods please.... I am very interested..

Mick

Yeah, interesting, cheaper like....?

IOMTT, we are kidnapping howell's thread badly, why dont you start your own? your bike's definitely worth it

cheers

TG

Howell · « **Reply #229 on:** March 17, 2010, 01:13:11 PM »

Quote from: turboguzzi on March 17, 2010, 08:22:06 AM

Quote from: retro rocket on March 17, 2010, 03:39:58 AM
Quote
2 pics of Race Rods we have had made here in the UK. Company that made them says they are as strong as Carrillos but cheaper.

Tell me more about the rods please.... I am very interested..

Mick

Yeah, interesting, cheaper like....?

IOMTT, we are kidnapping howell's thread badly, why dont you start your own? your bike's definitely worth it

cheers

TG

It's okay that he kidnapped it , he called me today for some other things and we talked about this and I agreed.
Every body who wants to publish about CB500 tuning/racers is welcome on this thread..

Howell · « **Reply #230 on:** March 19, 2010, 03:09:43 PM »

CB500's at Croix France

turboguzzi · « **Reply #231 on:** March 20, 2010, 04:47:16 AM »

nice shots howell

what kind of lap times were the CB500's runing?

TG

Howell · « **Reply #232 on:** March 20, 2010, 12:23:58 PM »

Quote from: turboguzzi on March 20, 2010, 04:47:16 AM

nice shots howell

what kind of lap times were the CB500's runing?

TG

There was no time registration , just free riding.

turboguzzi · « **Reply #233 on:** March 20, 2010, 01:43:55 PM »

Quote from: Howell on March 20, 2010, 12:23:58 PM

Quote from: turboguzzi on March 20, 2010, 04:47:16 AM
nice shots howell

what kind of lap times were the CB500's runing?

TG

There was no time registration , just free riding.

what about un-official times?

TG

Howell · « **Reply #234 on:** March 21, 2010, 12:07:48 PM »

Quote from: turboguzzi on March 20, 2010, 01:43:55 PM

Quote from: Howell on March 20, 2010, 12:23:58 PM
Quote from: turboguzzi on March 20, 2010, 04:47:16 AM
nice shots howell

what kind of lap times were the CB500's runing?

TG

There was no time registration , just free riding.

what about un-official times?

TG

Hi TG,

The purpose of this practice was to get the right feeling with the bike for my son and to test the engine.
Well you've red about the valve problem.
My friend the no.46 was already going fast , but he has already raced two seasons with his bike.
But for him it was six month ago he was on the bike and wanted also to get back the right feeling before the first race.
Most of the time he stayed ahead of the modern bikes.
We didn't time anything.

turboguzzi · « **Reply #235 on:** March 21, 2010, 04:01:33 PM »

the 46 guys looks pretty big on the 500... dont worry, at 189cm/85 kg i look worse

you know racers, always want to know lap times,

I follow a bit the french VMA championship and Dennis Coumoul (CB500 four) laped at 1:03 when they raced there last year.

TG

Howell · « **Reply #236 on:** March 22, 2010, 12:59:09 PM »

Quote from: turboguzzi on March 21, 2010, 04:01:33 PM

the 46 guys looks pretty big on the 500... dont worry, at 189cm/85 kg i look worse

you know racers, always want to know lap times,

I follow a bit the french VMA championship and Dennis Coumoul (CB500 four) laped at 1:03 when they raced there last year.

TG

He is pretty big also a 188cm and I think 95 kg , but for two years his weight was about 110 kg.
My son is 175cm and 75 kg, so he has an advantage in weight.
See the internetsite of no.46 , he raced also with a Norsa , thats an ESO engine in a Norton frame.
http://www.vesper.nu/race_pics.html
I don't know any laptime at Croix.

turboguzzi · « **Reply #237 on:** March 22, 2010, 02:34:10 PM »

Quote from: Howell on March 22, 2010, 12:59:09 PM

Quote from: turboguzzi on March 21, 2010, 04:01:33 PM
the 46 guys looks pretty big on the 500... dont worry, at 189cm/85 kg i look worse

you know racers, always want to know lap times,

I follow a bit the french VMA championship and Dennis Coumoul (CB500 four) laped at 1:03 when they raced there last year.

TG

He is pretty big also a 188cm and I think 95 kg , but for two years his weight was about 110 kg.
My son is 175cm and 75 kg, so he has an advantage in weight.
See the internetsite of no.46 , he raced also with a Norsa , thats an ESO engine in a Norton frame.
http://www.vesper.nu/race_pics.html
I don't know any laptime at Croix.

ok, so sounds like i shouldnt complain

some nice shots of his bike there

http://www.vesper.nu/honda_cb500.html

any idea what is the exhaust system?

TG

Howell · « **Reply #238 on:** March 23, 2010, 12:56:58 PM »

[/quote]

ok, so sounds like i shouldnt complain

some nice shots of his bike there

http://www.vesper.nu/honda_cb500.html

any idea what is the exhaust system?

TG
[/quote]

The exhaust system of his bike is specially made for his bike, cost E.1200,=
I build one from an old CB500 4 in 1 and a Suzuki Bandit 600 silencer, costs E.185,=
And we can also use the 650 oilpan because of the flat collector.

turboguzzi · « **Reply #239 on:** March 23, 2010, 03:10:22 PM »

1200 euro? (1600$) I built my bike for around that kind of money....

Yrjo#54 · « **Reply #240 on:** March 24, 2010, 04:44:03 AM »

The fastest laptime of Gerard #46 was 1.01 on his GPS laptimer.

Howell · « **Reply #241 on:** March 24, 2010, 01:14:41 PM »

Quote from: Yrjo#54 on March 24, 2010, 04:44:03 AM

The fastest laptime of Gerard #46 was 1.01 on his GPS laptimer.

Oh yes

, I was forgotten that Gerard had indeed such a laptimer , it's my age

So his laptime was two seconds faster then Dennis Coumoul and that in the first practice this year and under cold conditions.
My son is nowadays my memory.

turboguzzi · « **Reply #242 on:** March 25, 2010, 03:59:21 AM »

wow, 2 secs on a 60 second lap, this guy might be big but he sure is FAST!

Howell · « **Reply #243 on:** March 25, 2010, 01:04:19 PM »

Quote from: turboguzzi on March 25, 2010, 03:59:21 AM

wow, 2 secs on a 60 second lap, this guy might be big but he sure is FAST!

The guy is not really fast but the bike, our bike has the same speed and a better accelleration because the less weight of my son.
In the dutch classic scene there are faster guys them him , but last year he finished on the podium.

Howell · « **Reply #244 on:** March 27, 2010, 12:40:12 PM »

The engine is running again, today we mounted the cylinderhead.
The problem with the valve was probable to little clearance between the valvestem and valveguide.
The valves we are using have normally the same stemdiameter as the original Honda valves.
But measuring the valve stems they were all 0,02 mm thicker than the originals.
But this bunch of valves were all that thicker , so we made the valveguides a little bit wider.
So up to the first race to Assen at Eastern.
I don't expect anything yet from my son, only to finish without problems.

bwaller · « **Reply #245 on:** March 27, 2010, 12:55:41 PM »

Just teething problems. Good luck next weekend.

Howell · « **Reply #246 on:** March 28, 2010, 12:22:27 PM »

For the Belgian races we intend to do , I made today an open megaphone from an old exhaust.
These races have no sound limits

turboguzzi · « **Reply #247 on:** March 28, 2010, 12:25:39 PM »

Quote from: Howell on March 28, 2010, 12:22:27 PM

For the Belgian races we intend to do , I made today an open megaphone from an old exhaust.
These races have no sound limits

that doesnt mean you have to make your son deaf....

Howell · « **Reply #248 on:** March 28, 2010, 12:46:17 PM »

Quote from: turboguzzi on March 28, 2010, 12:25:39 PM

Quote from: Howell on March 28, 2010, 12:22:27 PM
For the Belgian races we intend to do , I made today an open megaphone from an old exhaust.
These races have no sound limits

that doesnt mean you have to make your son deaf....

I buy earplugs for him

fastbroshi · « **Reply #249 on:** March 28, 2010, 03:03:28 PM »

I'm wondering what the purpose of these blockoff screws is. I'm guessing it's just to save the weight of the little endcaps as it seems they justblock the flow of oil out these holes as well. You just had to drill and tap the rocker cover correct?

News:

Author Topic: Building of a CB500 classic racer (Read 209317 times)