Top Speed & Mods to get there

That seems to be always the answer with people that lie about there speeds. "well uuhh mmm i cant travel that far". Put a legitemate challenge infront of the lying squids, and they always find a way to back out.

why is it just so hard to tell the truth?

I have a full race schedule this month.

I have Prairie City this weekend, Stockton the weekend after that, then Las Vegas 25th and 26th. Nor do i care to drive a distance so i can wipe up the track with an x-whatever.

man your X1-2-3's are fast with all those mods, i feel stupid buying my polini now

If you dont care about distance feel free to come to a socal track. Whats the problem? If vegas is so easy for you to get to why not socal? Pick a convient date in a socal track. Is that so hard?

Realisticlly who is going to drive out of their way just to prove someone online wrong? You either have nothing better to do or lucky enough to not have to work for a living. Yes some of us work for a living and we cant drive all over the state just because theres a challange 500 miles across the net.


My challange to you is that you travel to socal, if you cant then your also commenting about yourself.
Of course u can beat a x bike hello a 10hp bike? You even said so yourself their not in the same class. The cags & mids can race togelther with close results depending on rider's skill but racing against a 5hp+ bike hand down the mids and cags will lose.

Top speed & Acceleration are 2 different things. Thats why theres a thing called gearing. Example:1st Gen MR2 112hp can reach 140+MPH, 96 V8 300hp Northstar Caddy can on do a little over 125. Why cant the caddy go faster eventhough it has more power? Gearing its a 4 speed. It may accel faster but it tops out sooner. This is why real bikes & cars have more then 1 speed.

and that, my friends, is how gears in a tranny work.

please keep the tempers to a minimum. this is such an informative thread, i don't want to have to close it.

i have had my X1 CVT going 35 mph flat ground completely stock

Don't have a GPS ? No Radar Gun ? Well, they told us math would come in handy one day ....

Speed Trap
Measure off a known distance on a street (at least 200 feet). 300 or more feet is better and will be more accurate. Mark a start line and a finish line.
Now, get a long running start from further down the street, so you are going FULL SPEED on your vehicle when you cross the start line.
With a stopwatch, have someone time how long it takes you to travel from the start line to the finish. This is best accomplished as follows:
Have the person with the stopwatch stand at the start line, and start the timer when you cross the line. Have another person with a flag or something stand at the finish line. When the scooter crosses the finish line, quickly lower the flag. The person with the stopwatch should stop the timer when the flag is lowered.
Let's say it took you 5.4 seconds.
This means that you were going (200 feet / 5.4 seconds) = 37 feet per second.
But how many MPH is that?
There are 60 seconds in a minute and 60 minutes in an hour, so there are (60 * 60) = 3600 seconds in an hour.
This means you were going (37 feet/sec * 3600 sec/hour) = 133,200 feet per hour.
Almost there...
There are 5,280 feet in a mile, so you were going (133,200 / 5280) = 25.2 MPH. Not bad!

The general formula for finding MPH from Feet Per Second is: FPS * .682 = MPH.

I live in so cal. too, as for my bike right now is getting some hp parts.

Same reason late model GM trucks top out at 95.....Lawyers won't let them exceed the stock tires speed rating.

Not to mention the cadillac is substatially heavier and larger , nullifying the power difference and causing a higher drag respectively. And to the guy speaking of alcohol being used in funny cars, since when did they stop using nitromethane?

yeap its not always about how much raw power you have. Weight to power ratio, gear ratios (geared for top speed or acceleration), road & weather conditions, traction, and of course driver/rider exp..

I can assure you based on my own experience an sts seville will go much faster than 125mph once the factory installed speed governor is bypassed.

I'm not debating that it won't, I know it will. I was merely pointing out the extremely flawed arguement our friend was attempting to make.

Shorter gear Ratios provide greater acceleration for the car at the cost of slower top speed. Shorter gear ratios gives you more power at the wheels to accelerate the car. The higher gear ratios also result in lower top speed because theres a reduction between engine RPM's and the wheels RPM's. Shorter gear ratios causes higher engine RPM's at lower car speeds.

Taller gear Ratios provide faster top speed but it will make acceleration slower. Taller gear ratios provides less power to the wheels to accelerate the car. The taller gear ratios will produce a higher top speed because there is less of a reduction between engine RPM's and the wheels RPM's. Taller gear ratios causes lower engine RPM's at higher car speeds.

With these too factors in mind. If 2 Pocketbikes have the same power band the one with a bigger rear sprocket (stock front) is the one with the shorter gear ratio. RPM limits the top speed on both of them. So if both motors top out at the same RPM then the bigger rear sprocket will have a lower top speed.

i was reading the cag forum and started reading the thread on there top speeds...

was it me? or are most of them only getting to about 30-35 with alotta mods?

1 guy had a new carb, pipe, filter, reeds, and sum other stuff, and he only got to 32....

i hit 32 with just a stack and pipe....

i thought they were suppose to be blowin us away?

They do because they accelerate faster. Their top speeds arent as high because of their gearing. In a real track situation acceleration matters alot. On a drag condition top speed matters more. Alot of the guys on here dont understand that having more hp doesnt mean your gonna be faster unless you do something about the gear ratios.

OK. so we know that acceleration is the main issue. comparing mids and minis.

Can anything be done for the mainstream mid user to help acceleration and improve the coolness of the midi .

I for one only believe in formula v formula.

Bigger rear sprockets dramtically increase acceleration but again your gonna sacrifice top speed. All the bolt on mods will generally help with acceleration also. Carb, vstack & filter, tuned pipe, rocket key, higher RPM engagment clutch and juice box or boost tube.

If you have the skills or funds you can get a big bore kit with port & polishing and match porting. Match porting is important to keep the exhaust flange from being restrictive.

For the average users that really dont care about racing all too much a big bore kit would be useful. But if you want to stay in class just the P&P. Deburing the crankcase and transfer ports can help but it wont yeld noticable gains unless its a fully modified motor.

on a drag condition only E.T. matters not top speed .

i kno there acc kicks our ***, but werent they suppose to be gettin up to 35-40s with mods?

at least thats wat i thought they were suppose to be at...