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Author Topic: Higher lift with stock cams - a possibility?  (Read 1153 times)

kylohere

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Higher lift with stock cams - a possibility?
« on: May 09, 2014, 09:05:03 AM »
Okay, so this might seem silly to even think of to the more initiated Bullet folk here, but I was wondering if it is possible to improve lift with a stock cam.

If we were to somehow add in a multiplying effect into the rockers, can we not achieve a larger throw?

What do you guys think? Ridiculous? Done before?
« Last Edit: May 09, 2014, 09:11:46 AM by kylohere »

kylohere

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Re: Higher lift with stock cams - a possibility?
« Reply #1 on: May 09, 2014, 09:13:32 AM »
And if indeed it is possible and has been done before, how has this been achieved?

chumma7

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Re: Higher lift with stock cams - a possibility?
« Reply #2 on: May 09, 2014, 11:37:42 AM »
We've been working on a couple designs for about a year now with great results. Making adequate lift was the easy first step, preventing premature block wear was the second hurdle. Cost effective manufacturing without sacrificing our design is whats next. Here's a sneak peak at our latest prototype:
https://www.youtube.com/watch?v=pSYbmCvktaI

They should be ready in the next few months.
ACE Fireball 001

dampking

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Re: Higher lift with stock cams - a possibility?
« Reply #3 on: May 09, 2014, 11:52:57 AM »
I remember these!! I think :D


-Sanket

cafeman

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Re: Higher lift with stock cams - a possibility?
« Reply #4 on: May 09, 2014, 12:15:40 PM »
You would be talking about high ratio rocker arms. The pushrod socket on the rocker would be closer to its fulcrum.  Pretty common on v8 engines. I'd like to see some roller rockers as well.

ace.cafe

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Re: Higher lift with stock cams - a possibility?
« Reply #5 on: May 09, 2014, 12:25:21 PM »
You would be talking about high ratio rocker arms. The pushrod socket on the rocker would be closer to its fulcrum.  Pretty common on v8 engines. I'd like to see some roller rockers as well.

Okay, here you go.
First, the Ace GP Billet Roller Rocker kit with high-port head mods.
http://www.enfieldmotorcycles.com/forum/index.php/topic,17488.0.html

Next, the Ace GP Roller Rocker conversion for the Bullet Big Head.
http://www.enfieldmotorcycles.com/forum/index.php/topic,16411.

Both currently available, and a street version of the Big Head GP is currently on the road, and another one currently being fitted to one of the most competitive racing Bullets on the UK Vintage Motorcycle Racing circuit.

For the Ace Billet GP package on the regular Bullet head, we have 5 in the shop here being done, and should be completed soon.

All these require head modifications for installation. they cannot "drop in" to a normal head. You can't make a Bullet valve lift this high without special valves and springs and mods. We are the only ones in the world who do it.
« Last Edit: May 09, 2014, 12:33:24 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://groups.yahoo.com/neo/groups/AcePerformanceBullets/info

chumma7

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Re: Higher lift with stock cams - a possibility?
« Reply #6 on: May 09, 2014, 12:41:02 PM »
Dost you were the first to see the drawings that become the prototypes in that video.
I remember these!! I think :D


-Sanket
ACE Fireball 001

dampking

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Re: Higher lift with stock cams - a possibility?
« Reply #7 on: May 09, 2014, 02:16:31 PM »
Good days!

ace.cafe

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Re: Higher lift with stock cams - a possibility?
« Reply #8 on: May 09, 2014, 02:48:39 PM »
Good days!

Sanket,
The roller rockers we use on the Big Head will fit the AVL. But it requires head porting mods and new valves/springs to make it all work, so we'd need to have your head here.
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://groups.yahoo.com/neo/groups/AcePerformanceBullets/info

dampking

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Re: Higher lift with stock cams - a possibility?
« Reply #9 on: May 09, 2014, 03:35:58 PM »
Tom - I am stocking up parts and next plan is Head and other stuff. My friends keep going to US (Pao Alto) for Business Tours so I can send it to you guys via them. I have everything in Plan but few screw ups here and there so in some time I will know how much money I will be able to invest on Motorcycling stuff. Life is a mess! and I seriously want a Hybrid of Asbo and Fireball, hope things work out good for me.

ace.cafe

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Re: Higher lift with stock cams - a possibility?
« Reply #10 on: May 09, 2014, 03:57:20 PM »
Tom - I am stocking up parts and next plan is Head and other stuff. My friends keep going to US (Pao Alto) for Business Tours so I can send it to you guys via them. I have everything in Plan but few screw ups here and there so in some time I will know how much money I will be able to invest on Motorcycling stuff. Life is a mess! and I seriously want a Hybrid of Asbo and Fireball, hope things work out good for me.

Okay Sanket.
I hope things go well.

Probably next week I am going to post some photos of Tooseevee's AVL head work on that other thread, so you can see some of the stuff we are doing to AVL.
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://groups.yahoo.com/neo/groups/AcePerformanceBullets/info

dampking

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Re: Higher lift with stock cams - a possibility?
« Reply #11 on: May 09, 2014, 03:58:20 PM »
Great! :D

Chuck D

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Re: Higher lift with stock cams - a possibility?
« Reply #12 on: May 09, 2014, 04:55:43 PM »
We've been working on a couple designs for about a year now with great results. Making adequate lift was the easy first step, preventing premature block wear was the second hurdle. Cost effective manufacturing without sacrificing our design is whats next. Here's a sneak peak at our latest prototype:
https://www.youtube.com/watch?v=pSYbmCvktaI

They should be ready in the next few months.
Your bike sounds soooo good.
2006 Bullet Sixty-5 w/ Ace "Fireball 535" Kit (#10)
Ace "GP" head in the works.
Featherbed frame conversion underway.

'76 Honda CB550Four K(sold)


"What's so funny 'bout peace, love, and understandin'?"

solg

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Re: Higher lift with stock cams - a possibility?
« Reply #13 on: May 09, 2014, 05:31:20 PM »
We've been working on a couple designs for about a year now with great results. Making adequate lift was the easy first step, preventing premature block wear was the second hurdle. Cost effective manufacturing without sacrificing our design is whats next. Here's a sneak peak at our latest prototype:
https://www.youtube.com/watch?v=pSYbmCvktaI

They should be ready in the next few months.

Thanks for the teaser! I can't wait!
Time flies like an arrow
Fruit flies like a banana!

Chuck D

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Re: Higher lift with stock cams - a possibility?
« Reply #14 on: May 09, 2014, 05:36:01 PM »

Thanks for the teaser! I can't wait!
Oh, you'll wait. :)
2006 Bullet Sixty-5 w/ Ace "Fireball 535" Kit (#10)
Ace "GP" head in the works.
Featherbed frame conversion underway.

'76 Honda CB550Four K(sold)


"What's so funny 'bout peace, love, and understandin'?"