Driveline Performance Cylinders

[BANSHEE HP]

Yes

[banshee den]

Have you done any testing on 4mm yet lately?

[BANSHEE HP]

There's a shop that has a set and they got 81hp and 46tq. I'm pretty sure they've made changes and are in the 87hp range now. We'll be building 392 and 421 cc engines next month.

[banshee den]

ok sweet. definitely interested in these cylinders.

[mailman]

How did these numbers compare to the cub cylinders that you had?

[BANSHEE HP]

2hp more than my cub last September. Same pipes, carbs and lower end. I meant to get a picture of the graphs but forgot today, I'll try to remember tomorrow.

[Strm Trpr]

What is the smallest 4mil topend you guys plan on selling.

My motor is a stock bolt on motor and I can burn a full tank of fuel on one ride.

Any bigger and fuel economy is going to suck.

[BANSHEE HP]

66mm bore

[Strm Trpr]

66mm bore

So, 397cc's, that's cool!!

[BANSHEE HP]

How did these numbers compare to the cub cylinders that you had?

BLUE was my  465 cub sept '14

RED is my Driveline Performance 465 sept '15

 

The only differences on the entire bike configuration were cylinders of course and last year I ran a 19/38 so it did mph better, this year I used 18/38. I did have that cub make 116hp before but I cant find graphs from 2010/11. Ive always want to hit 120hp with inframe pipes, I came close with the cub and I'm certain I'll get there with these.

[lil Doobie420]

Titties

[sleeper06]

As cast, or ported

[BANSHEE HP]

Both ported

[Strm Trpr]

How long before the 66mm pistons and LP +4mm cylinders are ready?

[BANSHEE HP]

We're finishing a big run of domes right now before the trip. When we get home we'll be cutting cylinders all October. Right now we have plated 68mm cylinders on the shelf. We have pistons for the 66mm bores already. I would say by the end of October we'll have 66 & 68 in all the strokes raw unplated.