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Author Topic: Ace UCE project.  (Read 28191 times)

ace.cafe

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Re: Ace UCE project.
« Reply #360 on: March 24, 2013, 11:32:41 PM »
Silly question Ace, but do you do this sort of mod for just REs or other bikes as well?

We specialize in Enfields, but we could do others if the opportunity arose.
I have not pursued that, but I'm open to it.
Home of the ACE Fireball 535 Bullet,  Ace GP Hi-Lift Roller Rocker Head . Pistons, cams, etc. Highest performance Bullet engine mods available .  AVL mods. Redditch 700/750 Twin mods. UCE kit soon.

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ace.cafe

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Re: Ace UCE project.
« Reply #361 on: April 04, 2013, 11:26:49 AM »
Hi guys!

We finally got our final flow data on the UCE head, and I thought you might like to see it.

I'm just going to post the intake numbers here today, and the exhaust flow numbers are ported to a corresponding percentage of the intake numbers in the UCE Ported Head that we did.

First, here is the flow chart from the stock UCE head as it comes from the factory.
The stock cam only lifts to .300", but it was flow tested to .400" where it flattened off.
STOCK HEAD:
Lift--------CFM
.050".....35.9
.100".....65.3
.150".....89.09
.200"....111.74
.250"....126.84
.300"....135.9
.350"....141
.400"....142.5

Here's a photo of the UCE head on the flow test bench.



And this is the flow from our UCE Ported Head.
This head was flow tested to .500" because we will be adding more lift than stock.
PORTED HEAD:
Lift--------CFM
.050".....28.72
.100".....52.414
.150".....86.07
.200"....113.25
.250"....135.9
.300"....156
.350"....174
.400"....189
.450"....195
.500"....198

We can immediately notice that the flow numbers on the UCE Ported Head are more oriented to better flow at the medium and higher lifts, and that the low lift flow is slightly reduced, compared to the stock head flow. This is part of porting practices to get most flow where it counts, and limit intake flow losses out the exhaust valve during overlap period.
The UCE Ported Head was ported to take advantage of the higher lifts that it will be seeing in our application.
The peak flow rate is increased very significantly, and it compares quite closely with the flow seen in the Ace Fireball 535 kit which we make for the Iron Barrel Bullets.
We expect this to do very well.

Here's a pic of the exhaust port outlet where the header pipe connects, for you guys with header questions. The exhaust port is not exactly round, and it is done that way intentionally, so don't be concerned that it isn't perfectly round.


Graph of flow comparisons, stock UCE vs Ace UCE attached below.

« Last Edit: April 04, 2013, 01:47:27 PM by ace.cafe »
Home of the ACE Fireball 535 Bullet,  Ace GP Hi-Lift Roller Rocker Head . Pistons, cams, etc. Highest performance Bullet engine mods available .  AVL mods. Redditch 700/750 Twin mods. UCE kit soon.

Please visit my new website:
http://autos.groups.yahoo.com/group/AcePerformanceBullets/

1 Thump

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Re: Ace UCE project.
« Reply #362 on: April 04, 2013, 02:53:21 PM »
Its coming together !!

High On Octane

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Re: Ace UCE project.
« Reply #363 on: April 04, 2013, 05:16:14 PM »
Very impressive improvement over stock.  Can't wait until the motor is complete and we can see some dyno numbers.  Keep up the great work ACE!    8)

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ace.cafe

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Re: Ace UCE project.
« Reply #364 on: April 04, 2013, 05:51:27 PM »
Well, this is what it takes to get the power up to where we want it to be.
We're asking for a fairly significant increase over stock power.

As I mentioned in a previous post, if we make a basic comparison of air flow(cfm) per horsepower on the stock bike, we get 135.9cfm divided by 27.2(stock hp) and we get 4.996. Essentially 5 cfm per hp, in round terms. The stock bike takes 5 cfm to make each hp.

So, if we do the same calc for this Ace UCE Head, we are probably looking at around .400" lift, so take the 189cfm divided by 5, and we get 37.8hp at the engine. About a 10.6 hp increase over stock.

Since the stock bike loses, let's say around 7hp by the time it gets to the 20.2 hp figure we might typically see at the rear wheel on a dyno, we can subtract that same amount of loss off our figure, and get around 30.8 hp at the rear wheel for our Ace rwhp estimate.

So, that's a well-founded realistic guesstimate at what we'd expect to see.  There is some potential for more than that, but I would rather estimate on the conservative side at this time. And there could be some things that might hold us back more than anticipated too, like the stock throttle body.

We'll have to take it one step at a time, and see what we can get out of it. And as we work at the fine-tuning after it is done, we can usually pull a fair amount more than the first attempt.

Should be faster than the new 535 Cafe Racer, if it all comes together as planned.
« Last Edit: April 04, 2013, 06:28:25 PM by ace.cafe »
Home of the ACE Fireball 535 Bullet,  Ace GP Hi-Lift Roller Rocker Head . Pistons, cams, etc. Highest performance Bullet engine mods available .  AVL mods. Redditch 700/750 Twin mods. UCE kit soon.

Please visit my new website:
http://autos.groups.yahoo.com/group/AcePerformanceBullets/

GSS

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Re: Ace UCE project.
« Reply #365 on: April 04, 2013, 06:18:12 PM »
Should be faster than the new 535 Cafe Racer, if it all comes together as planned.
Very nicely done. Between you and ScooterBob, I think we will see a real ton on a UCE soon!
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Arizoni

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Re: Ace UCE project.
« Reply #366 on: April 04, 2013, 07:37:38 PM »
By wagging my thumb in the air and looking at the numbers it looks like your ported head with the stock valve lift would add about 15% worth of power.

That alone would boost the 27.2 hp to 31.2 and some folks could find some usefulness for 4 more horsepower. :)

Keep up the good work. :)
Jim
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ace.cafe

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Re: Ace UCE project.
« Reply #367 on: April 04, 2013, 08:08:08 PM »
By wagging my thumb in the air and looking at the numbers it looks like your ported head with the stock valve lift would add about 15% worth of power.

That alone would boost the 27.2 hp to 31.2 and some folks could find some usefulness for 4 more horsepower. :)

Keep up the good work. :)

That's a good point, Jim.
Thanks!
Home of the ACE Fireball 535 Bullet,  Ace GP Hi-Lift Roller Rocker Head . Pistons, cams, etc. Highest performance Bullet engine mods available .  AVL mods. Redditch 700/750 Twin mods. UCE kit soon.

Please visit my new website:
http://autos.groups.yahoo.com/group/AcePerformanceBullets/

wokka

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Re: Ace UCE project.
« Reply #368 on: April 09, 2013, 06:56:32 AM »
Been hiding under rocks in various countries lately,

Just had a read through the last 5 or so pages, nice work Ace.

The only worry I have is that the porting work is not possible out here, and shipping back and forth to the states is gonna cost a fortune.

Interested to see the numbers

Jamesriot

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Re: Ace UCE project.
« Reply #369 on: April 09, 2013, 07:38:35 AM »
Good if there is someone great like you, in my country....I would ask them to do it for my bike.

Good Job bro, keep it post!  8)
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AussieDave

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Re: Ace UCE project.
« Reply #370 on: May 09, 2013, 09:07:34 AM »
Bit of a bump, just wondering how its all coming along? No pressure:)
"Glorious,stirring sight! The poetry of motion! The real way to travel! The only way to travel! ... O bliss ! O poop poop ! Oh my! Oh my!" - Toad of Toad Hall.

ace.cafe

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Re: Ace UCE project.
« Reply #371 on: May 09, 2013, 12:59:45 PM »
Bit of a bump, just wondering how its all coming along? No pressure:)

Still coming along slowly. There will be some delays over the next 2 months because Chumma will be in India, and he has the B5 prototype bike at his place in NJ.
In the meantime, we will be working with the parts development.

Thanks!
Home of the ACE Fireball 535 Bullet,  Ace GP Hi-Lift Roller Rocker Head . Pistons, cams, etc. Highest performance Bullet engine mods available .  AVL mods. Redditch 700/750 Twin mods. UCE kit soon.

Please visit my new website:
http://autos.groups.yahoo.com/group/AcePerformanceBullets/

AussieDave

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Re: Ace UCE project.
« Reply #372 on: May 09, 2013, 01:55:42 PM »
Still coming along slowly. There will be some delays over the next 2 months because Chumma will be in India, and he has the B5 prototype bike at his place in NJ.
In the meantime, we will be working with the parts development.

Thanks!
[/quote
And I'm sure it will be worth the wait. Thanks for the prompt response. all the best.D
"Glorious,stirring sight! The poetry of motion! The real way to travel! The only way to travel! ... O bliss ! O poop poop ! Oh my! Oh my!" - Toad of Toad Hall.

eda1bulletc5

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Re: Ace UCE project.
« Reply #373 on: May 09, 2013, 03:21:16 PM »
Hi Ace,

It is very nice to know the thoroughness in your modifications!!...Great work and write-up. Hope to see some dyno results!

Ace, how is the racedynamics ECU modifier or powercommander V (can't remember which one you had got) working? Will Dyno tuning and installing a new map help (if any) further improve performance along with your mods?

Good luck on the project!

Sajiv


2011 RE C5
2012 Honda NC700X 6-speed

ace.cafe

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Re: Ace UCE project.
« Reply #374 on: May 09, 2013, 05:03:20 PM »
Hi Ace,

It is very nice to know the thoroughness in your modifications!!...Great work and write-up. Hope to see some dyno results!

Ace, how is the racedynamics ECU modifier or powercommander V (can't remember which one you had got) working? Will Dyno tuning and installing a new map help (if any) further improve performance along with your mods?

Good luck on the project!

Sajiv

Hi Sajiv,
We are a long ways off from anything like that.
We still have to finish doing the engine.

Yes, dyno tuning it will be important to establish the proper ECU behavior for this engine. It will definitely help us to make the performance the way we want it.

Thanks to all for your interest and support.
Home of the ACE Fireball 535 Bullet,  Ace GP Hi-Lift Roller Rocker Head . Pistons, cams, etc. Highest performance Bullet engine mods available .  AVL mods. Redditch 700/750 Twin mods. UCE kit soon.

Please visit my new website:
http://autos.groups.yahoo.com/group/AcePerformanceBullets/