Harley Sportster at Wilmington

[saltwheels262]

get it up to speed is fast as you can ,like a one mile drag race.

bf
from the mousetrap.

[Uncle Jimbo]

Yep ! Just like Bill said - "get it on as quick as you can" it is like a one mile drag strip. I think your gonna love it.
We had to make a rookie run last year for our first pass to show we could handle the bike & slow down safely to exit the track.  A good safety aspect of the ECTA.
After we passed that scrutinizing it was all out - WFO for the mile. Had a blast goin fast and seeing some old friends.
Here is a short clip from that weekend.
Have fun - go fast - stop safe -
Jimbo
http://youtu.be/d2j8MSzydAc

[TurboCat]

Great clip Jim! Sure didnt sound like you were wringing it out thru the gears going down the track. Have any advice on my proposed gearing with the 1250 Sportster?

[Uncle Jimbo]

For whatever its worth Turbocat - The Iron Gray Ghost  (1235 cc)ran a 22 - 43 at Bnvle.  We plan on a little Union Grove Drag strip test & tune next Thursday eve.  For that testing we use a 21 - 50 - for Wilmington most likely a 21 - 43 - but that's the Iron Head not the Alloy Ghost II
Like W mentioned in that clip, for the Alloy (1643 cc.) bike we ran the same gearing at Wilmington that we ran at Bnvle.  21 - 38 ,  that's with a stock 1998 primary drive & and 5 spd. with S&S close ratio gear set.  As for how it sounded on that clip, it wasn't any where near the rev. limitr, just gobs of torque pullin like a t'd off Missouri mule. We maybe could have added a tooth or two to the wheel sprocket, but figured we had plenty of fun at our first go around at Wilmington.   
The old Iron is a whole other world compared to the technology of the alloy motors that just took off.  I am still boning up on much of EFI programing on the Alloy, where as a 1974 Iron Head with a Dynatek  SP 4000  - set it right - and your done, oh ya, wanna change jetting - drop da bowel.  With the Alloy - plug in da lap top and a few key strokes and your done, till you want to look at  A - F ratio again.
Glad you enjoyed the clip.  If you are at the June event - stop by & say hi. 
Jimbo

[TurboCat]

Thanks Jim - I can match your gearing pretty close with the belt, but the question is how much hp is the Iron Gray Ghost making. That would help a lot making a final decision on overall gearing for mine...I suspect you are making over the 110hp my '07 will be putting out. I'll be sure to stop by at Wilmington.

[Uncle Jimbo]

Thanks Jim - I can match your gearing pretty close with the belt, but the question is how much hp is the Iron Gray Ghost making. That would help a lot making a final decision on overall gearing for mine...I suspect you are making over the 110hp my '07 will be putting out. I'll be sure to stop by at Wilmington.

The Iron Ghost dynode 98 rear wheel hp  -  Remember, in the PP class he last rode in we had to run the OEM Bendix carb. His best speed with that gearing and the Bendix was 147mph.   In PG now, he will be running an S&S
One last thought - The primary drive on the Iron Ghost is 1.60 and the primary drive on the Alloy Ghost 1.73 -  I suspect your primary drive is 1.73 or was that changed ?

Here is the Alloy Ghost II  W F O  at Bnvle. - he does sound a bit different at 170 .  http://youtu.be/DN7EbWf1Wa4     
Have fun - see ya in a couple weeks
Jimbo

[TurboCat]

Thanks Jim - I can match your gearing pretty close with the belt, but the question is how much hp is the Iron Gray Ghost making. That would help a lot making a final decision on overall gearing for mine...I suspect you are making over the 110hp my '07 will be putting out. I'll be sure to stop by at Wilmington.

The Iron Ghost dynode 98 rear wheel hp  -  Remember, in the PP class he last rode in we had to run the OEM Bendix carb. His best speed with that gearing and the Bendix was 147mph.   In PG now, he will be running an S&S
One last thought - The primary drive on the Iron Ghost is 1.60 and the primary drive on the Alloy Ghost 1.73 -  I suspect your primary drive is 1.73 or was that changed ?

Here is the Alloy Ghost II  W F O  at Bnvle. - he does sound a bit different at 170 .  http://youtu.be/DN7EbWf1Wa4     
Have fun - see ya in a couple weeks
Jimbo

This '07 883 has 34T engine sprocket/57T clutch sprocket for 1.676:1 ratio. I don't know that I will ever get to your level, but it would be fun trying! You never know, I may get bitten by the bug my first time out. 

[relaxedphit]

You will get the bug! As for a long drag race -- no hard launches, but I'm sure you know that. go fast, go safe

[TurboCat]

Running out of time and still not completed...likely going to be the July meet. Looks like I will be assembling the motor about the time you guys/gals are going down the strip in June. Barring any unforseen snags the first attempt with the bike will be in the M/PG - 1350-4 class.

[TurboCat]

Still waiting on the heads/cylinders/cams - Got the wheels swapped and waiting on a fender for the mid-glide, but this is about what the bike will look like when I haul it up to Ohio. I'll fit the steering dampner when I upgrade the motor parts. Most likely will swap the drive pulley to a 61T.

[Uncle Jimbo]

The bike is looking good - What is the gear ratio ?

Have fun
Jimbo

[TurboCat]

The bike is looking good - What is the gear ratio ?

Have fun
Jimbo

It has the 883 primary 1.676:1 with 32T/61T belt final and 160/60ZR17 rear wheel. I have some clip-on's to use later.

[rouse]

If your bike will pull that gear, call it a War Horse!

Rouse

[TurboCat]

If your bike will pull that gear, call it a War Horse!

Rouse

Don't know for sure it will...I'm going to leave the 32T/68T on it during break-in and will see how it fares from there. Kind of limited on drive pulleys with a belt and I'm resisting a swap to a chain as long as possible. I'm afraid I will run out of gear with the 68T...

[rouse]

If you're making 110 Hp and plan on running 7000 RPMs the 32/68 will put you in the mid 140's, with a good tuck you could see that, maybe.

The same numbers with the 32/61 would put you in the mid 160's, that ain't going to happen, unless you truly have a War Horse.

Rouse