Hightower,

Relax.. MR.HP is one of the good guys... out of all the vendors I've spoken to he is the the most pleasurable to deal with. Never knocks anyone stuff, never tries to push anything on ya, never tries to make ya look like an idiot. I wish I knew of his big bore kit... I would have went with him or waited till his came out. I plan to upgrade my 44 to a 46 down the road. Sounds like there is power everywhere.

For all you guys considering a 45.. thumb throttle is stiff and unless you put an accelerator pump which can be tricky to install you get an annoying bog at low rpms or a quick jolt to the throttle. ALSO... something that no one has stated here... removal of the slide and needle is by FAR easier to adjust on a lectron than a TM45. It's like adjusting a chain on a Yamaha or a Bombardier, which do you think is easier?

 

Blackhawk, I can admit to not knowing much about my computer but I do know angled padlles and I do know comp cuts as well as tripple buffs. Light weight is good but you are traction limited. I'm sorry you spent so much on those paddles, if they are in good shape maybe you can recoup some by seeling them on Ebay. If you can find someone to swap with to experiment then you will learn. I wish I was closer to loan you my tires. The 23" on 12 itp's work very good as well as comp cut Sand Tires Unlimited paddla brats but you will pay a premium for either of those. Also you should gear down if your tires are really that tall.
I would be glad to contribute $20 to the dyno test as well. If there are still big gains to be had in carburation then I want the best.

 

hey guys just wanted to give you my story.. i put this carb on about 6 months ago and did the intake myself.. i ported it down to thin as a popcan and made it fit up with the head and the carb perfect.. polished the inside to smooth as a mirror.... anyway it made a night and day diff. and i went from loosing 50% of the drags i was in too winning 97%.. i beat 686 raptors and such... Honestly i hardly ever drag race...But it made a big differance anyway... heres what i wanted you to know though... When i ordered it from Mr HP, there was no right cable to run from the carb to my twist throttle, so you have to do a bit of custom work to the cable to get it just right.. thats a bit of a pain... but second and most important is I am a well traveled guy, as i live at our local TX dunes, i had Mr HP tune me for 2000 ft and 80-90 degrees as thats where most of my time is spent.. HOWEVER.. i make it to Glamis and up the Pacific coast to the oregon dunes, at least once a year.. twice this year.. anyway with this same carb i was running at winchestor bay OR, 45 degrees and even trail in WA at 40 degrees and as high as 6000 ft.. and the carb ran pretty darn good, once in awhile would caugh or backfire.. but those are huge changes in temp and alt and it still ran Real impressive.. was smoking my best friends raptor in OR, that i used to be neck and neck with before the carb... So its pretty adaptable to the differnt climates.. But at home in TX desert it rips!
Jetjock16

 

It would probably work even better jetjock if you hadn't polished the intake. That's a no no. [img]i/expressions/face-icon-small-wink.gif[/img]

 

Will the 46hv work with the stock throttle cable?

 

I definately plan on dynoing the two carbs back to back . I think they should be dynoed two different ways. The first way should be out of the box exactly the way they are recommended to be set up. The next way would be to tune for max horsepower.

I used to run mikuni carbs, they made great power were easy to tune and performed on the track very well when tuned properly. But i had one major problem. The Mikuni would loose it's tune with very minor temperature and or barometric pressure changes.

The Lectron on the other hand is very difficult to initially tune but once the right setup is found it holds the tune over a very wide range of temperate, barometric pressure, and elevation changes. Just as JetJock noted. The Lectron needle design and its power jet combination are what allows it to meter fuel so well.

I have actually dynoed several TM45's and the main thing I notice is the large amount of horsepower that can be lost with only one jet change. Yes it will get very close to the Lectron numbers if everything is perfect but it will not hold those numbers as well as the Lectron when conditions change.

There is one more condition that can not be measured on the dyno- Getting from point A to point B as quick as possible. If I have two carbs that make 60hp but one meters fuel more accurately according to engine vacuum it will accelerate quicker. Thats why NHRA prostock bikes run Lectron carbs and thats also why I run one.

MrHorsepower

 

Mr HP ,if you and 222 are going to dyno Sat I will see if I can get away. I have a stock basic TM45 and a HMF pipe to try.

A good way to test the TM45 against the HV46 would run the bike with the same set up on both then, let the sniffer on the dyno set the jetting for max power. This way we have an apples for apples comparison. I will bring my trail bike and see how it does. [img]i/expressions/face-icon-small-smile.gif[/img]

J Ross

 

I will be watching this post closely if that happens!

 

Wouldn't a indepedent source be more impressive???? We have rounded up almost everything needed we just need a TM45 and a 46HV we have a dyno with sniffer and load brake 48 mm lectron 44 mm lectron and a stock bike to test on.This would be a straight forward as it gets?????????

PS: And beer.

 

bombastic,

We had to install new throttle cables for both the motion pro and the factory thumb. The factory thumb is less than ideal because it isn't designed to pull a 46mm carb open, and you have to dremal the thumb housing pretty good to use it. But it will open the carb 100% and isn't to bad on the thumb.

If anybody knows of a cool looking thumb throttle that yanks a 46-48mm carb open, I'm listening. I can't switch to a twist due to my limited wrist (defective) movement. Lousy warrenty on the wrist; so I'm living with it.....Terry Cable or Moose won't pull a 46mm open.

jbt