where to buy?, Roller lifters, where can I get some? |
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where to buy?, Roller lifters, where can I get some? |
RJMII |
Mar 11 2008, 11:36 PM
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#1
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Jim McIntosh Group: Members Posts: 3,125 Joined: 11-September 07 From: Sandy, Utah Member No.: 8,112 Region Association: None |
That covers it. I am contemplating roller lifters. Only, I haven't been able to find any. Anyone know where they are available? (I saw a set for sale somewhere, and they got SOLD already) grrr.
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Dave_Darling |
Mar 12 2008, 01:14 AM
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#2
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
I'm surprised you found any for sale at all! As far as I know, those are still quite experimental. Expect to pay big bucks for them when they're ready for prime time, as it sounds like a whole lot of work has gone into making them. (And work == money...)
You may be able to adapt roller lifters from some other sort of engine. (Dunno if anyone makes them for Type Is?) If you do, it'll be a fun engineering project, but you have to be able to face the possibility that you'll blow the motor at least once or twice getting everything to work the way you want it to... --DD |
McMark |
Mar 12 2008, 01:21 AM
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#3
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I'm assuming 4 cyl, in which case, there are not roller lifters and never have been. If you saw some for sale, it was probably a one-off, custom project of someone's.
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charliew |
Mar 12 2008, 08:09 AM
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#4
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Advanced Member Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 |
For the type 4 I would think if anybody attempted this it would be Jake Raby. Keeping the lifter straight with guides is really tough in that congiguration.If you mean only roller rockers that is quite easier. There must be a rocker already made that is a close enough ratio to work. Don't know about cover clearance though. Why not just double the number of valves and add a radiator?
Charliew |
sww914 |
Mar 12 2008, 08:51 AM
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#5
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Advanced Member Group: Members Posts: 2,439 Joined: 4-June 06 Member No.: 6,146 Region Association: None |
Jake said he was working on roller lifters about a year ago.
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Jake Raby |
Mar 12 2008, 10:07 AM
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#6
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Our development with them is still ongoing.
To date the testing has not been satisfactory to release any engines or components for use by the general public. At minimum we have another full year of alterations and development to the program before we;'ll be ready to release the first roller street engine. From that point the actual parts are at least 2-3 years away from going to market. Making the TIV accept this development without compromise has proven to be the single largest development I have ever attempted. Here is our arrangement: (IMG:http://aircooledtechnology.com/galleries/roller/Roller%20R&D%20012.jpg) (IMG:http://aircooledtechnology.com/galleries/roller/Roller%20R&D%20017.jpg) I have an experimental Land Speed race engine that will be using the RAT roller technology for the first time in competition coming up in April. |
RJMII |
Mar 12 2008, 12:23 PM
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#7
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Jim McIntosh Group: Members Posts: 3,125 Joined: 11-September 07 From: Sandy, Utah Member No.: 8,112 Region Association: None |
Our development with them is still ongoing. To date the testing has not been satisfactory to release any engines or components for use by the general public. At minimum we have another full year of alterations and development to the program before we;'ll be ready to release the first roller street engine. From that point the actual parts are at least 2-3 years away from going to market. I have an experimental Land Speed race engine that will be using the RAT roller technology for the first time in competition coming up in April. If you want to run one in an experimental street car to see if they are idiot proof, I'll volunteer to be the first idiot. (IMG:style_emoticons/default/driving.gif) The pics look good. Which Land Speed race? |
Jake Raby |
Mar 12 2008, 12:56 PM
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#8
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
We campaign this car in the ECTA speed trials at Maxton NC. It currently has a 1500cc, 180HP Type 1 N/A engine installed and holds the current H/GALT record at 132 MPH and change.
(IMG:http://i155.photobucket.com/albums/s294/tanbugwerks/DSC00868.jpg) here is a video of the most recent test session for the baby Type 1 engine. http://www.youtube.com/watch?v=irnnTvn_iW0 We are swapping classes to the 2.0 class for more competition and will be running a 69X96mm TIV N/A engine in the G class this season. The 1996cc engine will run the roller lifter arrangement coupled to LE 200 "Tight wedge" heads at 14:1 CR. Thanks for the offer of an experimental guinea pig... I never use customers as our experimantal researchers... I have an entire fleet of my own MassIVe equipped vehicles that get the technology first :-) |
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