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Author Topic: Ace/BW assisting Australian vintage racing team.  (Read 1256 times)

ace.cafe

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Ace/BW assisting Australian vintage racing team.
« on: May 11, 2014, 12:29:53 PM »
I'm pleased to announce that Ace will be providing our performance parts and services to a top Australian Bullet racing team, Guy Brown a.k.a. "speedybrowndog".
Guy is intent on winning the Australian vintage 500 championship, and he has enlisted our services to help him achieve that goal.

Bullet Whisperer will also be working with Guy and ourselves on the project, providing the specialty piston and valuable guidance. Essentially, the engine will be as close of a model to the previous one done with Bullet Whisperer as possible. This would be the 2nd iteration of our prototype racing engine platform collaboration of Ace/BW, and may portend eventual availability of complete racing engines in the crate, or maybe even race bikes complete. This is something that I would like to do, and BW and I have spoken about doing it, so I think it is a strong possibility for the future. We work well together.

Anyway, we want to help Guy to achieve his goal on the continent of OZ, and we'll do as much as we can toward helping him build the winning ride for that championship.
It will be the ACE GP Big Head package with the raised port, high-ratio roller rockers, modified chamber, ultralight BW custom piston for methanol. Just like what was done with Bullet Whisperer's bike. 8000+ rpm and as close to 60hp as we can get.
He just asked for our shipping address to send his Big Head in, so we should be receiving it before the end of the month.

Upon completion of this, we will have our racing heads on 3 continents, because we are also working with Scottie J and his 700 twin Bonneville LSR effort here in the US.

Maybe we need to bring it all together as an international racing team on the vintage circuits.
Sponsors, anybody?
 
Here is the bike.
« Last Edit: May 11, 2014, 02:55:17 PM by ace.cafe »

cyrusb

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #1 on: May 11, 2014, 01:04:22 PM »
Congrats, Ace. Nothing but good can come out of this. Racing improves the breed!

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #2 on: May 11, 2014, 03:44:17 PM »
Congrats, Ace. Nothing but good can come out of this. Racing improves the breed!

Thanks Cyrus!

We are already trickling this technology down into our street packages, albeit at the higher end of the price range.

Chuck D

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #3 on: May 11, 2014, 05:05:04 PM »
Nice Ace, now let's go kick some Manx ass!
2006 Bullet Sixty-5 w/ Ace "Fireball 535" Kit (#10)
Ace "GP" head in the works.
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cafeman

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #4 on: May 11, 2014, 05:30:17 PM »
Bigger picture please! ;)
Current Fleet: 2001 Royal Enfield Bullet 500 Cafe Racer
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                     1991 Husqvarna 350WXE
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                     2004 Husqvarna TC450

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #5 on: May 11, 2014, 05:43:54 PM »
Bigger picture please! ;)
I got that off his blog "Speed Dog Racing".
I don't have any pics that aren't published there.

It used to be a 612, and now he's coming down to 500.

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #6 on: May 11, 2014, 05:49:54 PM »
Nice Ace, now let's go kick some Manx ass!

That is the aim, Chuck!
We will certainly do that, and our sights are set on beating the very top echelon of big-bore short-stroke highest-priced Manxes and G50s. We think that is a real possibility, although it is a lofty goal. Gotta aim high!

Bullet Whisperer

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #7 on: May 11, 2014, 06:27:49 PM »
For those that haven't already seen our U.K. based R.E. classic racing machines, here are some pictures. The 350 has been excluded from scoring points and is forced to start from the back of the grid in BHR events, because its' Indian 5 speed gearbox gives it some sort of unfair advantage, apparently, over the 6 speed Manxes, Goldstars, 7R's etc that it can frequently put to shame. It has a good few outright wins under its' belt. In 5 races in Anglesea a couple of weeks ago, it took four 2nd places and one 3rd place, beaten by one Manx five times and another once, all the rest behind and several of these were more Manxes. This little bike was once allowed [pre ban] to run in a 500 race after our 500 broke a conrod - when the 350 crossed the line in 4th place, a big fuss followed and we were denied the points for the championship we had been leading up to then. This reinforces our desire to put something out there to totally 'stuff them' - we really want this!
 The 500 has been a very capable machine, reliable, but less consistent than the 350, it too has had numerous respectable placings and three wins out of four races in Pembrey a few years back, the fourth race gave a second placing, because 'Henchy' looked the wrong way over his shoulder coming out of the last bend and got overtaken over the line  ::)
 If the 500 gains as little as an extra 5 bhp, it should be dynamite, the maths and paperwork seem to point to a larger increase in power. Fingers crossed, we might upset a few more people on 'thoroughbreds' soon  8)
 B.W.
« Last Edit: May 11, 2014, 06:31:40 PM by Bullet Whisperer »

cafeman

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #8 on: May 11, 2014, 07:14:01 PM »
It would be safe to say, if it hasn't already been said, that the "apple cart" has been upset?!! And some of those teams will soon have to swallow that hard pill!! It's always fun to see that sort of stuff, when they're at the top.... for what? ever? and here comes something from left field with a head of steam, just rolling on! ;D
Current Fleet: 2001 Royal Enfield Bullet 500 Cafe Racer
                     1996 Yamaha Seca II
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                     1991 KTM 250MX
                     2004 Husqvarna TC450

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #9 on: May 12, 2014, 04:56:53 AM »
It would be safe to say, if it hasn't already been said, that the "apple cart" has been upset?!! And some of those teams will soon have to swallow that hard pill!! It's always fun to see that sort of stuff, when they're at the top.... for what? ever? and here comes something from left field with a head of steam, just rolling on! ;D

We will know more once the engine is up and running, and we can get some data. I'm sure that some sorting will be needed because the changes are so big.

However, on the positive outlook side, the changes are so big that the potential hp increase has a great chance to also be big.
Here's a basic estimate.
The previous engine had about 45hp at the rear wheel, at about 7200 rpm. That equates to 38 ft-lbs torque at 7200 rpm. If we only keep the same torque as before, but are able to hold it to 8200 rpm, then that would give about 52 hp at the rear wheel. That's not even increasing the torque, but just holding it at the previous level.However, we have increased the breathing by 30% and increased lift 45% over the entire lift profile. That would almost guarantee some significant torque increase to add to the extra 1000 rpm at peak.
You can draw your own  conclusions about what that might be, but I think it's gonna be pretty dramatic.
The best Manx and G50 bikes in the world are running between 53-55 hp at the rear wheel. I'd say we have a real shot at it.

High On Octane

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #10 on: May 12, 2014, 11:59:36 AM »
Great news Tom!   :D
Scottie J  ~  Bulldog Kustoms Denver  ~  1958 Enfield/Indian Trailblazer  ~  1959 Enfield/Indian Chief

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #11 on: May 21, 2014, 04:11:58 PM »
Received word today that the Big Head shipment is on the way to us.
Due to arrive the 28th.

 ;D

High On Octane

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #12 on: May 21, 2014, 04:38:08 PM »
Sweeeeeet!!!   ;D
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ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #13 on: June 03, 2014, 11:38:45 AM »
Okay, there was a huge delay at US Customs, where they felt compelled to ask for massive amounts of information, taking days in between each info request, and finally opened up the box for physical inspection. I have no idea why this was singled-out for such treatment.

Anyway, it has finally cleared US Customs, and is on the way to us. It will probably get here tomorrow.

Yayyyyyyy!

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #14 on: June 04, 2014, 09:05:25 PM »
Finally, the delivery of the Big Head was finalized today, and it was signed for at Mondello's.
So, I will check up on it tomorrow.

Also, the "fixings" kit for the Big Head from Hitchcock has already arrived without any issues with customs.

High On Octane

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #15 on: June 05, 2014, 12:23:27 AM »
Finally, the delivery of the Big Head was finalized today, and it was signed for at Mondello's.
So, I will check up on it tomorrow.

Also, the "fixings" kit for the Big Head from Hitchcock has already arrived without any issues with customs.


Ah man, let's not get started on customs.  I have an order in transit right now.......    :-\

Awesome that you finally got the head tho!    :D
Scottie J  ~  Bulldog Kustoms Denver  ~  1958 Enfield/Indian Trailblazer  ~  1959 Enfield/Indian Chief

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #16 on: July 06, 2014, 03:29:35 PM »
Discussion with the owner today.

Due to some issues on his end, he was not able to take advantage of the BW piston construction run, so the decision was made to use the regular Hemi chamber, and a high compression piston to suit a methanol fuel. Some squish can be employed on the hemi piston, and I think he is going to secure a piston maker to do it, and we will provide a mold casting of the combustion chamber for the piston maker to design the crown. In any event, we won't be having to modify the combustion chamber, and it will remain a Hemi.

Valves will the stainless steel of a similar size to what BW is using in his head.

Port will be similar to BW's port size, but will be a little different because this head has a small port in it, so that gives us a little more flexibility in shaping this port. This port may end up being a little bit more "ideal" in shape, because of this.

Cams will be Hitchcock race cams, with .420" lift, so the lift height at the valve will be about the same as the BW head. But the duration and timing will be shorter. Probably, the maximum rpm range will be somewhat lower than BW's bike.

We will have more updates as some of these things get more firmed up. However, we can now get started on the head, since the main things which we needed to know are now decided.

 8)

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #17 on: December 05, 2014, 12:33:33 AM »
Racing Big Head Hi-Port Hi-Lift Roller Rocker head work completed!

Picked it up tonight, and will be shipping tomorrow. I will take some pics in the morning. Looks great!

Flow test included, and I will post numbers in the morning with the pics.
I can say from memory that the peak flow at .600" lift is about 265 cfm, which has the potential in full racing tune to give 67.84 hp at the crank. Most builds do not reach max potential, but it has a reasonable potential to match(or beat) any of the top Manx or G50 builds in the world out there. If he gets it all sorted and tuned to best power by race time, it could possibly win the 500cc single race.

Plans are to run this bike at the Phillip Island Classic Motorcycle Races in January. That's about the biggest classic race event in the Southern Hemisphere. Sort of like the Isle of Man for the Aussies.
Pretty cool!
 8)
« Last Edit: December 05, 2014, 12:36:15 AM by ace.cafe »

Mr.Mazza

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #18 on: December 05, 2014, 01:45:44 AM »
Cant wait to see Guy flogging the bike at Philip Island, last week he pulled the engine outta the frame, a new frame I think as the old one is just too old.
Hopefully he can pass the guidence from you guys into my road going Enfield, I'm looking at near same Hp as his old bike but street friendly.
Lizzy - 07 500 Deluxe ES - Red and chrome

motorman2whel

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #19 on: December 05, 2014, 04:55:13 AM »
That's Outstanding Ace ! ;D, Love to see a RE kickin some butt and screamin down the straights to the WIN.  ;). Someone has got to take some vids of it in action, with sound.

High On Octane

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #20 on: December 05, 2014, 11:52:39 AM »
Nice work Ace!  65bhp out of a 500 single is pretty damn tuff!    :D
Scottie J  ~  Bulldog Kustoms Denver  ~  1958 Enfield/Indian Trailblazer  ~  1959 Enfield/Indian Chief

ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #21 on: December 05, 2014, 01:18:56 PM »
Nice work Ace!  65bhp out of a 500 single is pretty damn tuff!    :D
Thanks, but that is potential hp based on flow capacity. It may or may not actually achieve that, based on other things about the build, as you know.
The bottom line is we need to be at or above 54hp at the rear wheel to beat the most powerful modern full-race Manx or G50 bikes that are out there. Those are $50,000 racing motorcycles. If this bike makes even 60hp at the crank, we should be about even with them at 53-54 rwhp. I would suggest it is possible with a very good build and enough rpms.

Without the hi-lift head, it would not be possible.

And this whole race engine can probably be built for under $7500(steel valves and your labor), and the whole bike for probably under $15k total for everything. IMO, that changes the whole perspective of the vintage racing world. A competitive bike for roughly 1/3 the cost!
« Last Edit: December 05, 2014, 01:55:49 PM by ace.cafe »

High On Octane

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #22 on: December 05, 2014, 02:21:20 PM »
+1
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ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #23 on: December 05, 2014, 06:29:02 PM »
Pics attached below!

Flow sheet data for this head:

Intake:..............Exhaust
Lift......CFM.........CFM
.050"   27.7         25.3
.100"   58.1         54.2
.150"   87.1         83.1
.200"  112.2       110.7
.250"  137.9       133.0
.300"  168.3       156.1
.350"  200.1       172.9
.400"  218.7       186.2
.450"  234.8       196.0
.500"  249.0       196.2
.550"  258.2       196.7
.600"  264.1       199.8


ace.cafe

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #24 on: December 05, 2014, 06:30:56 PM »
Port and chamber pics attached below:

Ported for a 1.5" carb, such as Amal GP 1-1/2".

Mr.Mazza

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #25 on: December 05, 2014, 10:16:01 PM »
Nice work Ace!  65bhp out of a 500 single is pretty damn tuff!    :D

And couple that with a bike and rider who gives 650 twins a run for their money on the track.
He will be unstoppable.
Lizzy - 07 500 Deluxe ES - Red and chrome

High On Octane

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Re: Ace/BW assisting Australian vintage racing team.
« Reply #26 on: December 05, 2014, 11:57:52 PM »
That head is beautiful!  Excellent work as always!
Scottie J  ~  Bulldog Kustoms Denver  ~  1958 Enfield/Indian Trailblazer  ~  1959 Enfield/Indian Chief