[banshee332]

Has any one ever test shearer sb pipes to there bb bore pipes on a 10mill cub

 

[banshee332]

anyone?

 

[Kawiking]

bigboybanshee had sb grr pipes and now runs bb shears... pm him (travis)

 

[banshee332]

QUOTE (kawiking @ Sep 24 2008, 05:44 PM) index.php?act=findpost&pid=11614bigboybanshee had sb grr pipes and now runs bb shears... pm him (travis)


Im pretty sure the bb works better on the 10mill cubs cause the down fall is the exhaust flanges are not big enough to begain with.

 

[okbeast]

Depends on who does the porting, what the builder likes, dyno tests, etc. etc.

I've heard the SB pipes have even been nixed because they aren't as good as scavenging heat.

 

[bigboybanshee]

The big bores seem to be making more power on my 10mil cub, ported by K&T. Once I get my bike dialed in on the big bores, I'm going to put my small bores back on just to compare again....

 

[dunejumper]

I have always heard sb pipes make more HP on a dyno but BB pipes will run better times on a track. BB pipes have better "useable" power from what I have heard from a couple guys that own dyno's.

 

[phatboyz]

+1 to what cam said

 

[BBIII]

So what would be the best for some stock cylinders SB's?

 

[bigboybanshee]

QUOTE (dunejumper @ Sep 25 2008, 05:58 AM) index.php?act=findpost&pid=11655BB pipes have better "useable" power from what I have heard from a couple guys that own dyno's.

That's exactly what I'm noticing from my switch to BB pipes over the SB. Less over-rev, broader powerband, more useable power...It did "seem" that the SB pipes pulled a bit harder, but the powerband was much more narrow...Just my opinion

 

[Kawiking]

i d like to see some dyno sheets for a 4 mill .. between the sb-bb pipes

 

[dajogejr]

I will be able to tell you guys just that after this weekend coming up.
My pipes (big bore) are in for repair...

I'm bringing a set of Shearer big and small bore to the races, for my 10 mil cub.

4 different (well respected) folks ALL said small bore on a 10 mil cub.

His current Big Bore pipe was designed for a 535cc Cheetah...

I've got 10 hours of test and tune on Friday, 10 to 8. Going to try both sets of pipes, gearing, etc...
I'll let you know when I get back from racing.

 

[s-540]

what was the outcome of the pipes?QUOTE (dajogejr @ Oct 5 2008, 06:23 PM) index.php?act=findpost&pid=12502I will be able to tell you guys just that after this weekend coming up.
My pipes (big bore) are in for repair...

I'm bringing a set of Shearer big and small bore to the races, for my 10 mil cub.

4 different (well respected) folks ALL said small bore on a 10 mil cub.

His current Big Bore pipe was designed for a 535cc Cheetah...

I've got 10 hours of test and tune on Friday, 10 to 8. Going to try both sets of pipes, gearing, etc...
I'll let you know when I get back from racing.

 

[dajogejr]

Well..I had every intention....

Broke after the first pass...then took a little time to fix and get back out.
Never got a chance to run small bores, sorry..

 

[s-540]

QUOTE (dajogejr @ Oct 14 2008, 05:47 AM) index.php?act=findpost&pid=13087Well..I had every intention....

Broke after the first pass...then took a little time to fix and get back out.
Never got a chance to run small bores, sorry..

thats to bad, was hoping you had tested the two pipes.

 

[dajogejr]

So was I ...it just didn't work out that way. As the day went on...and after about 3 or 4 PM, a LOT more people showed up and it was more and more difficult to get more runs in...no biggie.