I had a chance to see what my 2001 F4i could do, and just yesterday took her to the local strip.
Mind you, she's bone stock cept a Yoshi slip-on.
I'm not too great at drag-racing so I gave the honors to my brother-in-law, I have a question though.
He claims to have read 156 mph off the tach, I'm 99% sure that that is very incorrect, I believe the actual speed was more like 130-135.
Anybody know?

BTW, we ran a 12.32....I know she can go faster, I blame the brother-in-law.

 

Stock bikes come with an intentional error usually about 7-10% above actual. This is so they pass government regulations. They face strict sanctions if the speedo reads lower than the speed limit so they purposely make it higher. for a stock bike to be off 15-20% without any mods is a little off though.

 

Not too shabby.
I've personally only taken my F4i to our local strip twice, and since I'm not the best drag-racer I pretty much embarrassed ourselves lol.
Still, 12.3 ain't bad.
I wouldent know what you actual speed would have been though, I think there is a speed correct calculator out there, a guy at another forum that i am member of made one to correct the Ninja 250R speed error.
I'm pretty sure you can do the same for the F4i.

 

I'm aware of that factory error and why its there, I kinda wanted to know if anyone knew the actual speed though.
So a speed of 156mph, what would that translate to actual speed?

 

156=<actual>*1.1

156/1.1=<actual>

142=<actual>

Using 10% error for ease...You can find out your bikes error and use the same steps to find your speed.

 

Nice.
Spank you ibiggers!
There you go 18rocket, all math done for you.

 

+1 about 142 - 146mph was prolly the actual speed. Your time slip should tell you what the actual speed was thru the traps tho.

 

I took my F4i to the strip twice and I sucked at it. The best I ran was a 12.6 @ 117. A 12.3 isn't much faster. You were probably trapping at 119-120ish tops.

 

yeah was going to say 150s are around 9s or so in the 1/4

 

At the 1/4 mile track here in cincinnati we had some bikes in the 8s and they were in the 150s.

BTW one of the riders was on a 1000rr shooting nitrous. It looked completely stock. No wheely bar, extended swingarm etc...