Suzuki Quadracer HQ
LT500R Quadracer => LT500R - Engine => Topic started by: Cunningham_821 on June 25, 2015, 02:10:51 am
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Wanna buy one?
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What is a roost boost?
Smoke & mirrors from the 80's that didn't do anything except lighten your wallet
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What is a roost boost?
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Is this something your thinking about selling because you do not use it anymore? And I read somewhere that the 87' years had the best timing curve for the stock bolt on type of guy
probably not going to sell it, I can make the adapters if you need one
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Is this something your thinking about selling because you do not use it anymore? And I read somewhere that the 87' years had the best timing curve for the stock bolt on type of guy
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Here's the setup I ran and the adapter plate, I'm not sure what year it is but it ran great on my quad, the only reason I'm not running it now is because I can't run a head light with it.
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Lmao yeah I run a full custom setup or did when I was racing that I done myself, but Idk about all that fancy stuff I'm more of a bolt it on and see if it works kinda guy if it does run it if not don't, it worked for me but it might not for you! ;)
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The timing curve is aggressive on the cr hence why drag racers love them. Years ago i ran pvls the bike honestly ran crazy when u advanced the timing but the downfall was the timing was set. So it was a **** to start.
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My question would be then why can you put the a 250r and not have issues?
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I run a CR250 ignition on my lt500
Red don't you run a full custom set up with a custom hand made triple port cylinder, custom hand coned pipe, and custom porting that you did all YOURSELF?
I assume because you did all of this yourself that you designed the ports, the pipe to work best with the CR timing curve and that is why you can & are running the CR ignition (CDI & Stator)?
Wouldn't just slapping a CR stator & CDI on a stock zilla make it run like crap because the timing curve does not match the port timing or the pipe design?
I'm still learning and trying to understand this.
Thanks
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Only thing about the 00 and 01 cr250 ignitions they are getting hard to find and expensive too, as well as loosing your lighting ability.
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I didn't make it to the shop tonight to take any pics, I know you have to either get the flywheel rekeyed or just not run a key is what I did, the taper is the same so it locks on tight just make sure it's in the right spot before you lock it down.
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Got some more info?
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I think it was an 01, I've actually got it off right now so I can take some pictures later of the adapter plate.
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That was my guess as well
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Its likely a 2001 ignition. They have the best curve(for the CR, and TRX for that matter).
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I run a CR250 ignition on my lt500
Do you have any pictures and what year?
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I run a CR250 ignition on my lt500
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little bit of the stuff for the swap. minus the custom flywheel, magnets, timing plat and the battery plate that holds the milwaukee cordless batteries. so roughly already $750 not including the stuff listed in the text. I know the battery plate was at least $150. so $900.
almost forgot, plus you need a desktop or laptop custom cable that plugs to the MSD (serial port cable to usb). so there's that cost also.
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I like it. Haven't messed with it in about 2yrs.
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That thief/hack Matt Hatfield told me that he has put CR ignitions in Zuki's before :))
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I always thought it would be a good idea to try a late model rm250 ignition on my 500 until I read Motorgeeks post...now I realize it is probably a terrible idea haha. One of the main reasons for the ignition swap on our 250R's is to make them easier to start when they're bored out because the stock ignition becomes almost inadequate at kick over rpm.
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Just put a roost boost on it and your good to go. ;D
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An ignition will improve engine power if it can produce a spark at a better time that will produce peak cylinder pressure at the right time or the power will suffer if the spark did not have enough voltage to jump the gap and initiate a combustion event on EVERY engine rotation.
An ignition coil cannot deliver more energy to the spark plug than is generated by the stator unless the control unit is getting additional power from another source.
The energy (power) generated by the stator can be manipulated by devices in the spark plug wires that have circuits with capacitors that reduce the spark duration but increase the peak voltage. Most of the aftermarket devices that I have used that involve special wires, different coils, plug caps that have magical devices in them have tested to be snake oil.
Dont be fooled by the demonstrations that show a whiter spark, a spark that jumps a wider gap or the increase noise or pop when the spark occurs. These devices do not change the power delivered to the plug but compress the power into a shorter spark duration. A high voltage spark of a long duration is the best way to initiate a combustion event.
Ignition coils with different turns ratios can increase the peak voltage at the expense or reducing the current and spark duration.
One way I have found to determine if a programmable ignition would benefit a particular engine is to try many different timing settings by advancing or retarding the timing by rotating the stator a degree at a time . If the OEM timing curve is not what the engine wants at all RPMs, we will see the power improve in the RPM ranges where the engine liked the new timing setting and the power will decreases in the RPM ranges where the timing in the OEM curve was optimum from the factory.
With my current engine packages for the LT500s (ports, pipes, heads, carbs and reeds) the OEM timing curve seems to be very close to what the engine wants at all RPMs. If I advance the timing more than one degree power usually suffers through out the whole usable RPM range and retarding more than 1 degrees has similar results.
If you have a good OEM CDI box and stator I do not think that you will benefit from using any of the aftermarket ignition assemblies or coils, wires etc. unless you are doing something that is vastly different than the zillions of things I have tried over the years.
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I tryed one... i think it was defective tho it ran like ****. Then i sold it to a buddy who put it on his kx and it ran like **** on his bike.
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Programmable CDI anything are useless unless you know what you are doing.
haha
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Programmable CDI are useless unless you know what you are doing.
Wonder how the zilla would do with a nology coil. I know on the banshee it did give off a better spark which made starting easier and seemed to rev better, but never seen proof of any power increase.
I figure on a zilla with high compression (200psi+), the hotter stronger spark could help. Has anyone ever tried on before?
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A friend of mine really wants to use the MSD ignition. I think he's more curious than anything about it.
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Ive always wondered what a diffrent ignition would perform like on the 500 like how the 250r guys use the cr ignition. We dont have any options. I know stapleton did it with an msd on his bike im just curious ive never really seen it disgused before. Ive used pvls in the past with decent results but they are a **** to start. Whats your thoughts?