HF engine tips and tricks

[Dan]

Hi weekend-fun,

Due to the many 49 CC 4-stroke motors at the PA event it soon became clear the Q-Matic was able to transfer more of the power to the rear wheel than other systems. The HF motor with the Q-Matic was one of the faster bikes at the event [except for my EZM prototype, and the Whizzers].

Because we run the clutch at slower speeds it doesn't eat as much HP.

Have fun,

That is misinformation. The clutch engages at X RPM. Is basic physics. Reducing RPM before or after makes no difference. It spins when the spring is loaded to the point it elongates.The only down side of reducing before the clutch is there is that much more to move to get her going. The reason they reduced before the clutch on 1950's snow mobiles is there were no clutches that could idle at high RPM. The end result is the same. Make the drive turn and be able to idle.

This is not a promotional thread for you guys. Where is your advertising? I checked both sides but seem to have missed it.

 

[corgi1]

of course it was advertizing,though I would like a 4 stroke w/CVT and clutch

 

[Dan]

of course it was advertizing,though I would like a 4 stroke w/CVT and clutch

Oh man Corgi. Have you seen some of Neat Times work? He is CVT Master! Way back folk were saying that you could not use CVTs due to power loss. I listened to the experts and Good 'ol Ron plunged away. He made some awesome gear. I have an American made 2 smoker on the table now but my next project is a 4 smoker. CVT driven American made 4 stroke. Code name "Easy bake oven" The 2 stroke has the "egocentric drive"

 

[weekend-fun]

Today I went to check out the nearby Harbor Freight store and checked out what they had. They had the Greyhound and this huge 6 stroke, yet they both were for the same price!
Well anyways, i looked at it and it was pretty awesome. I understand the Q-Matic is a big plus for these engine, but i cant afford one unless i can get it used for half the price, which i doubt will happen .

So, do you think it could run it without the Q-Matic?i woas thinking a belt drive down to the pedal sprocket, or maybe weld a sprocket onto the shaft??

Sam

 

[Dan]

is a 5/8 shaft. Can buy one. A gocart tranny will work with this engine, The egomstic will work too but is huge and ugly.

 

[curtisfox]

Without going back through the hole tread who sells the Q-matic?

 

[silverbear]

Without going back through the hole tread who sells the Q-matic?

Hey Curtis,
The Q matic is made and sold by EZMotors. Several of the forum members here are dealers and have a link at their signature. Mike Simpson, Chis Davis, JB Cruisin, AZBill, maybe more I've forgotten.

It makes a difference, too, with what engine you intend to use. The HF 4 stroke will work with either Firebelly or Q-matic. I don't have personal experience with either one, but it sounds like they both work well.
SB

 

[eldo]

Like Dan says there are many other options out there. The Q Matic is one of the best but also one of the moist expensive. I guess it doesnt seem wright to spend $250 on a trans when you only spent $75 on a motor but life just isnt fare sometimes and most times the old saying you only get what you pay for. Larry

 

[Dan]

for that much can make your own and lie to your self. Cut out the middle man and make a cover that doesn't look like the cone of silence.

 

[azbill]

Dan, you forgot to mention,,,
don't make your cover clear, or you will get a nasty letter threatening litigation !!!
http://motorbicycling.com/f37/rays-q-matic-running-14771.html

(BTW Dan, I believe there is a rule about 1 vendor disparaging another vendor's product, even if one is actually on the market, and the other is 'in development')

 

[BarelyAWake]

The rule most often infringed is excessive self promotion by vendors in inappropriate subforums.

We let that slide a lot.


Just figured I'd mention that & if you've a complaint - best to report it, particularly if it concerns sensitive topics & interbusiness relations.

 

[Quenton Guenther]

Hi Dan,

My comments were not to promote our products! And as far as your mis-information comments, are you an engineer? I watched several comment about removing fins from the flywheel to increase RPM & power, so removing the HEAVY clutch from the same crankshaft would not have the same effect?

We had special clutches made to run on the crankshaft of the Honda & HS motors[easy to do if you are a engineer], and discovered during testing, the motor reved much slower, had a lower top end speed, much wider profile, and a lot more vibration.

Hopefully you can increase production of the drive you promote as we are currently sold out of the Q-Matic. We are about a week behind schedule and could use some help supplying drive systems for our fellow motorbikers. What do you recommend, how much, and were can we purchase the drive? PLEASE step up to the plate and offer a solution instead of negative comments about others.

BTW I hold the majority of speed records on the Whizzer motorbike, and I did it by reducing "spinning mass" and clutch speeds.

The title of this post is "HF engine tips & tricks" and I submit the following. The HF motor using the clutch running at 2.62 X 1 [motor turns 2.62 each time the clutch make one revolution] easily takes off from a stop [without pedaling], achieves a higher top speed than most [if not all]current drive systems. Jim Davis increased the primary pulley size and still had plenty of power with the rear mounted Max Torque clutch drive system on the HF motor.

Just another correction! Some of our dealers DO advertize on this and other sites! Pirate Cycles does advertize and are an authorized EZM dealer [did I miss your ad?]

Have fun,

 

[Dan]

Bill you forgot that the clutch will rip your leg off and kill you. The clear cover will melt and the HF will get you sent to prison unless your GB is used.

 

[weekend-fun]

Bill you forgot that the clutch will rip your leg off and kill you. The clear cover will melt and the HF will get you sent to prison unless your GB is used.

so it sounds its basicly the best way to go with the q-matic. hmmmm


Sam

 

[Dan]

Again with the peddling. The whisper drive does not need peddle take off. Misinformation. Some one else cut off their fins with success. I have yet to try it. If you say a clutch works better if reduced after the primary shaft, you are wrong and giving misinformation.

And when you guys are in chat calling me a thief, my favorite is "Conn Theft"

 

[Quenton Guenther]

Hi Dan,

Hope you are planning on attending Lewes, DE. Might be a good chance to compare notes. Maybe Jim would loan his HF setup to either Jay or myself for a race. Have you ever tested your setup against the other drive systems? If so, what was the outcome?

Is this fun or what?

Have fun,

 

[Dan]

LOL Quenton. Is kinda silly eh? Yes, did ride with Ray and a bunch of folks using your gear. Most were about the same but Ray's modified ran circles around me. No kidding, with ease. Take off (with out peddeling, snork had to sneak it in) Was about the same as was top end on all but Ray's. It has the same clutch as yours I think, but has what MaxTourqe calls a shoe. Is just a cover but looks purty cool and does the job. All in all is simple, turns the rear wheel and I like the looks. Yours works perfectly, I just have never enjoyed the esthetics's of it. Last I read before all this silly stuff was you guys were making new covers so that may have changed.

 

[WayneC]

I enjoyed reading this thread and liked the idea of the tips and tricks for the HF "ENGINE".
It got side tracked a few times with non essential things, but now has turned into another
"Q" invasion. Same ol' c r a p! -- Thanks for spoiling another thread EZM. Now another thread I won't be looking at any more. I'm outta here.

Just remember-- Harbor Freight ENGINE.
NOT XXX DRIVES.

 

[corgi1]

Everybody is arguing ,is it the hot weather ?

 

[eldo]

When you guys are talking Max Torque are you talking the company here in Naperville Il or somewhere else I bought my setup from him?