Suzuki Quadracer HQ
Suzuki Quadracer HQ Discussion => Suzuki Quadracer HQ - General Discussion => Topic started by: Dezsled on October 01, 2013, 08:21:25 am
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TURBO!!! _^_
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The surface speed on the outside of the LT500 crankshaft is about 175 feet per second at 8000 RPM. The peak velocity of the mixture of fuel and air moving over the outside surface of the crankshaft where it enter the bottom of the transfer ports is in the range of 300 to 400 feet per second. The actual velocity of the mixture depends upon how well the pipe and ports are working together.
The guys selling this snake oil claim that the turbo cranks blows or pushes air and fuel into the transfer openings. Knowing the above information about the outside speed of the crank where the grooves or paddles are located, makes it obvious that it is impossible to push or pull something that is already going twice as fast as the thing doing the pushing. It is impossible to push or pull another vehicle that is going twice the speed of the tow vehicle.
I have seen the turbo crank fad come and go about 3 or 4 time during my career. Early in my career I did a lot of testing on turbo cranks with a lot of different types of surfaces on the sides and OD of the crank webs. I built one that was knurled like the handle on your ratchet. I built ones that had shallow grooves, deep grooves, straight grooves, angled grooves, I even built one that looked like a sand tire with paddles.
The power went down as the outside of the crank went from smooth to rough. The "paddle crank" showed the greatest power loss. The only advantage was the engine SEEMED to clean out a little faster after the lower end got loaded up from idling for long periods of time.
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Not to hijack but whats the deal with these "turbo crank"?Snakeoil or do they actually gain something?I,ve heard of people doing them years ago along with "kniving" but pretty sure its expensive.Just curious on what the deal is.
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Yes, Dr Q was around in the 90's. I believe he worked at SCR (Suzuki Country Racing) at the time the Quadzilla was introduced.
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Well, that was over a year ago. If I get another that is in question I would certainly contact him, but I believe he marks the cylinder on his. And I am not sure how he would verify that he built the stroker crank in an engine without complete teardown. On top of that someone messaged me saying that he never built stroker cranks. The engine was claimed to have been built and assembled by engineers at Edelbrock, which may be why the person that has it now is saying that it looks like someone applied everything they know about a small block Chevy to it. There was no sense in asking Jerry if built it because he did not. A lot of it was smoke and mirrors it seemed with no real way to verify anything. To top that I picked up a zilla yesterday and the guy says that Dr. Q built the engine in the mid 1990's. Was he around then??
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I am not taking it personally. There is only so much I can to to truly determine the origins of an engine that I list. In most cases I feel that for the most part I am able to get somewhat reliable info from the seller. I know 250R engines well enough to usually be accurate in their descriptions, but the zilla engines are a different animal. Trinity built a ton of zilla engines here in So Cal. The Edelhall engine should have just been listed as an unknown built engine, but it was unique enough that I wanted to try to get some definitive information listed.
Why not ask Jerry Hall yourself? He is an active member on this site and posted above. Motorgeek.
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I am not taking it personally. There is only so much I can to to truly determine the origins of an engine that I list. In most cases I feel that for the most part I am able to get somewhat reliable info from the seller. I know 250R engines well enough to usually be accurate in their descriptions, but the zilla engines are a different animal. Trinity built a ton of zilla engines here in So Cal. The Edelhall engine should have just been listed as an unknown built engine, but it was unique enough that I wanted to try to get some definitive information listed.
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Nothing was said against you personally (at least not that I can see?) but the price and integrity (is that the right word?) of the engine
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Wow, you folks are a tough crowd. And yes motoman991 you sent me a messgage. Cute. As I have explained before I buy these buys here in CA usually after they have been listed for a month or two. The machines are not selling out here, but the parts are. If anything I like to think I am bringing some nice parts to people that want and need them. If you do not like my auctions or trust me, please feel free to not bid. As for the engines, I am at the mercy of what I am told by the seller, and a lot of times it is not the original builder of the machine. I try to represent them as accurately as possible. As for the 'Edelhall' engine that sold for $3000 last year, the final info I got on it was that Edelbrock built the engine and Hall built the stroker crank. That was after the run around from the tweeker kid that delivered it to me, and then finally getting some better info from his dad. As for this engine, I have no reason to not believe it was not built by Trinity other than the non welded tabs. 89mm is 535cc, got that down. Anyways, I do not mean any disrespect to the zilla folks, and I am not trying to scam anyone. The buy it now price is simply that. It is not a suggested retail price and I am not expecting to get that. This is a very nice engine and someone will be quite happy with it.
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This guy was featured in everyone's favorite magazine Dirt Wheels a few months back, he had a built up TRX250R. He has the eBay store "The Dirt Factory" where he buys and sells old Honda and Suzuki parts.
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I just sent the guy a message haha
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This is from that same guy again who parts them out. "The dirt factory" he claimed a hall motor a few months back and got called out on it and then he back peddled. He's a scammer!!
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i remember
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I remember the motor you're talking about Jerry. It came from a big dune bike + lot + drag parts lot sell then got parted out. The quad was sick as a mofo and was originally listed as sold with an edelbrock motor. Then it hit feebay as a motor from hpr, then listed again as edelbrock.
I'm sure others remember it,,,,
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Chrome don't get you home
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The cylinder needs the ears reinforced.
A guy from Australia just shipped me an engine that he bought from the USA about a year ago. He has had nothing but trouble with it. We just took it apart and inspected it. It needs a lot of changes to make it a reliable and powerful engine. It looks like someone tried to apply everything they new about Chevrolets to this LT500. It does not appear they new much about high performance two strokes. I wonder if the engine on the new ebay listing was built by the same guy that built the engine I just received from Australia?
The engine mentioned in the above post was also an ebay engine and first was advertised as being fathered by me. DNA samples were taken and proved I was not the father........... Then it was said to be fathered by someone from Edlebrock.
Who is going to be given the credit for building this polished up package with who knows what is inside?
Anyone want to play Lotto?
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Look at what you can see of the bottom of the piston too..... I spy with my blind eye,,,,, SCUFFING FROM HELL?
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Don't look like much was done to those ports
--> :D
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550cc?? hmmmm ::)
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(http://img.tapatalk.com/d/13/10/02/yge7agej.jpg)
(http://img.tapatalk.com/d/13/10/02/yzavuseb.jpg)
(http://img.tapatalk.com/d/13/10/02/araty4eh.jpg)
Right side looks bigger than left lol
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There is a picture of the intake ports if you scroll down. It looks stock??
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Hmm 89bore with 86 stroke is roughly 550 cc's??? lol
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http://www.ebay.com/itm/Trinity-Stage-IV-Big-Bore-550cc-Engine-LT-500R-LT500-500-Quadzilla-LT500R-/131007686008?pt=Motors_ATV_Parts_Accessories&hash=item1e80aaa578&vxp=mtr
Kinda pricey.
Trinity has been around forever. Could it go up against an HPR or Q or? and be competitive?
Short answer nope. But the one thing i will say about Trinity is that they are adamant about reinforcing the ears. Make me think it wasn't done by Trinity. Even if it was, 2k is a rip.
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LOL ripoff.
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The cylinder needs the ears reinforced.
A guy from Australia just shipped me an engine that he bought from the USA about a year ago. He has had nothing but trouble with it. We just took it apart and inspected it. It needs a lot of changes to make it a reliable and powerful engine. It looks like someone tried to apply everything they new about Chevrolets to this LT500. It does not appear they knew much about high performance two strokes. I wonder if the engine on the new ebay listing was built by the same guy that built the engine I just received from Australia?
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Holy carp
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http://www.ebay.com/itm/Trinity-Stage-IV-Big-Bore-550cc-Engine-LT-500R-LT500-500-Quadzilla-LT500R-/131007686008?pt=Motors_ATV_Parts_Accessories&hash=item1e80aaa578&vxp=mtr
Kinda pricey.
Trinity has been around forever. Could it go up against an HPR or Q or? and be competitive?