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AKA Blownjet 468
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1,205 Posts
Discussion Starter #1
Picked up an ULTRADYNE hyd. roller for a song couple of weeks ago, and
just wonderin' if anyone has ever used any of their marine grinds. I remember back in the day bunch of circle track buddies swore by em'
and you could always tell who was runnin' em cuz they had a very distinct
sound! anyways, this is supposed to be a "custom blower grind" for an
outdrive app-and specs sounded about right duration wise for my 509
238/246* @.050,.601/.601 lift, on a 114*lsa. heads are AFR305's w/cnc
chambers- self ported(just cleaned up & polished)looking for about 5500-5800rpm- should I run it, or send it to straub for some tweaking:D?
 

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Bullet Cams bought out Ultradyne some years ago. I have been an Ultradyne/ Bullet fan for years. Give em a call. Be prepared to dial dozens of times. I think they have 2 lines and busy signal is common.
Bullet Cams 662-893-8022
Wags
 

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"Need For Speed"
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1,210 Posts
Blownjet,

I can't seem to remember the cam grinder's name that designed the UD profiles but they have been decent grinds for years. The Ultradyne profiles are now a part of Bullet Camshafts in Memphis. John Partridge of Bullet was with Lunati for a long number of years, etc.

I don't have a lot of experience with UD, but Tim at Bullet ground an Ultradyne profile roller for Grammy's lake boat that has performed very well.

Great guys to work with, especially boats. If you give them accurate info they can nail the grind.

Gear
 

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Certified Wildman!
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188 Posts
The guy who owned Ultradyne name is Herold and is now responsible for the new line of VOODO Lunati cams. I have one in my blown SB 57 Chevy gasser and another one in a 525 BBC. Harold is one of the smartest cam grinders of all time IMHO and they run hard as hell. Everything else I own is running a Ultradyne (from the old days) and haven't tried a Bullet but I hear they work good?
 

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The guy who owned Ultradyne name is Herold and is now responsible for the new line of VOODO Lunati cams. I have one in my blown SB 57 Chevy gasser and another one in a 525 BBC. Harold is one of the smartest cam grinders of all time IMHO and they run hard as hell. Everything else I own is running a Ultradyne (from the old days) and haven't tried a Bullet but I hear they work good?
The guy's Name is Harold, you can usually get responses from him over on the Team Chevelle Forum - www.chevelles.com - he goes by the name UDHarold.
I read a lot of good about his BBC cams and have just purchased one, but not ran it yet. He seems like a real nice guy with a ton of knowledge.

Grayson
 

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Blownjet,

I can't seem to remember the cam grinder's name that designed the UD profiles but they have been decent grinds for years. The Ultradyne profiles are now a part of Bullet Camshafts in Memphis. John Partridge of Bullet was with Lunati for a long number of years, etc.

I don't have a lot of experience with UD, but Tim at Bullet ground an Ultradyne profile roller for Grammy's lake boat that has performed very well.

Great guys to work with, especially boats. If you give them accurate info they can nail the grind.

Gear
they can get close,but Straub can Nail the profile;):)devil
 

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550 Posts
I have a new in box Ultradyne that never got installed (originally purchased for different application). I'm running a Bullet now and I love it...heard nothing but good about Ultradyne though...
 

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mo balls than $cents$
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The guy's Name is Harold, you can usually get responses from him over on the Team Chevelle Forum - www.chevelles.com - he goes by the name UDHarold.
I read a lot of good about his BBC cams and have just purchased one, but not ran it yet. He seems like a real nice guy with a ton of knowledge.

Grayson
ive read a ton of his lsx smallblock threads over there, man he's sharpppppp:)devil he'll spec cam for free to if ya buy it from him, i was quoted a 100bucks less than a off the shelf grind from comp too!
 

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AKA Blownjet 468
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1,205 Posts
Discussion Starter #9
ive read a ton of his lsx smallblock threads over there, man he's sharpppppp:)devil he'll spec cam for free to if ya buy it from him, i was quoted a 100bucks less than a off the shelf grind from comp too!
IMPATIENT, I just don't see you as a comp crap "off the shelf" kinda guy:p







'
 

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mo balls than $cents$
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11,734 Posts
IMPATIENT, I just don't see you as a comp crap "off the shelf" kinda guy:p







'
hell if its cheap and works ill run it, that's the kinda guy i am:D lol:p i do all my own engines as cheap as i can do it and know it'l stay together. i only have 150 in my custom lsx turbo hyd roller in my new engine, had a new off the shelf gm performance cam reground with specs i picked out someone gave me, jus grew the pushrod length to compensate for what was removed from the cam's basecircle. so ive got 240bucks in cam/aftermarket pushrods with heavy walls instead of 500+bucks for a custom cam then having to still by longer pushrods.

lsx cams are expensiveeeee, cam cores are really higher. custom roller ls cam is twice what a bbc cam is normally.
 

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AKA Blownjet 468
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1,205 Posts
Discussion Starter #11
anyone ever read the ultradyne "theory behind the lobe design"? I dug out
my old ultradyne catalog and read the front 5 pgs. this guy has some pretty good stuff there-different-but ,well all I can say is, this guy is amazing- then I started reading the chevelle threads- very good reading!
he now is the man behind ALL Lunati's NEW stuff! AS MOST ALREADY KNOW:)devil
 
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