Any thoughts or opinions on these massive bore kits for sportsters that they're selling like the 89"+ kits?

 

Not really sure what you're talking about. But, I may be out of the loop.

 

Yep you can go big with a sporty....up to 103" that I know of.

But be ready to spend $5000 to $7000, maybe more to get it right. Some guys have $7000 plus in their builds and they still ain't right.

The best luck are with 88" and less builds.

If your going to go big, research, research, reseach.....

Here is a great place for builds...... http://www.nrhsperformance.com/

 

There are a number of members on here who have gone that route and seem to be quite happy with them.

DocJ: here's what he's talking about...
http://www.nrhsperformance.com/ekitsportster04.shtml
NEW! 88"and now 90" BIG BORE KITS FOR THE 2004 & UP SPORTSTER
From $820.00

Turn your new XL into the absolute nastiest hot-rod around! These kits take your Sporty out to the maximum bore size you can get in your stock cases. Of course, this engine kit comes with the finest quality components money can buy: Kit includes Axtell iron lined aluminum, or Axtell cast iron cylinders, matching forged Hurricane pistons with tool steel wrist pins, Total Seal rings, and Cometic EST gaskets! Note: case boring is required for installation.

 

Hmmm....I guess I'm thinking a simple stage 1 and cams would get you a lot further than one of these. Especially for the money. Is that correct?

 

Not even close, You can pull over 100hp and 100ftlbs with the right 1250 kit. A good amount more with a 88" & up kits.
On Sportsters, cams are useless with out matching head work.

 

I thought i saw on the HD site you can get the 110" but it was probably not for the sporty.

 

Big difference between the Sportster Motor and A BT (big twin) motor.

 

Yeah, the 110s are BT kits...and what all needs to be done to get this 100 hp and 100 ftlbs out of a 1250 kit, or is it all bolt on mostly and a tuned carb?

 

can be done with blot ons ....and you can watch cash bolt right out of your pocket....