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  #1 (permalink)  
Old 11-24-2009, 09:03 AM
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Getting ready for a full on Torque built 127

Here is what is going into the build:

127 Ultima by Southern Motorcycle Works
Doherty Power Pacc
Polished Mik 48
Hillside prepped heads/port matched manifold
11.0:1 comp
Wood W9B Knight Prowler cam and springs
S&S roller rockers
RB Racing 2-1 LSR exhaust

Once it's together and properly dyno tuned I'll post up some sheets and some numbers for those that are interested in what a built 127 can do. I personnaly have searched everywhere and have found little info on built 113s, 120s, and 127s.

Any number predictions on this combo?
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Last edited by Force; 11-24-2009 at 09:11 AM.. Reason: added info
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  #2 (permalink)  
Old 11-24-2009, 09:14 AM
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Guessing 160 HP and 170 lbs of torque should be easy to obtain with that setup. I'll be curious to see what kind of a life expectancy that bad boy has.
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Old 11-24-2009, 09:19 AM
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Ha, Ha me too brother!
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Old 11-24-2009, 09:33 AM
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What was the thought behind the cam choice...The W9B dosent seem to be that much different than the stock .625 lift...Duration is a little shorter and a .630 lift...Always like Bobby Woods setups...But always found his short duration cams and springs really hard to start though...Good luck with it...Let us know!!
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Old 11-24-2009, 08:43 PM
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The cam was recommended by Bob and also Scott from Hillside. I told them I wanted max low end torque with a good curve. I am not concerned with high HP numbers.

I am also leaning toward your point of view of the cams being very similar. I am begining to think the cam change isn't realy justified by the cost once you figure in cam, springs, and labor. This motor actually has a .640 lift/264 Dur instead of the
.625 in the factory crate motors. Mine was built by SMW.

That's the first I've heard about the starting issues with Wood cams. That definitely will be taken into consideration. Thanks for the info.
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Old 11-25-2009, 06:19 AM
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well the starting issue wouldnt be the cam makers issue its the grind on any particular cam. some grinds make em harder to start. Man that is gonna be a monster of a motor and like tailspnr said id be curious to see the life expectancy or lifespan of that thing. its gonna be nasty though!
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Old 11-26-2009, 06:22 AM
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I plan on the Southern Motorcycle Works 127 mill on my next build. I like the finish on the motor and am running an Ultima 127 on my current ride. It's a fire breathin' monster!
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Old 11-26-2009, 07:22 AM
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Quote:
Originally Posted by clspht View Post
What was the thought behind the cam choice...The W9B dosent seem to be that much different than the stock .625 lift...Duration is a little shorter and a .630 lift...Always like Bobby Woods setups...But always found his short duration cams and springs really hard to start though...Good luck with it...Let us know!!
Shorter duration and cam timing should produce more torque than the Ultima cam. I like the Zippers Redshift 656 though it has a broad power curve very torquey but doesnt sacrifice top end. Woods stuff does make big power though it should be interesting.....The shorter duration cams build more cylinder pressure so yes they are harder to start but should be okay with compression releases.

Scary has a built 127 anybody know what cam he choose?
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Old 11-26-2009, 08:29 AM
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Quote:
Originally Posted by pushrod243 View Post

Scary has a built 127 anybody know what cam he choose?
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Old 11-26-2009, 10:47 AM
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Quote:
Originally Posted by Tailspnr View Post
Guessing 160 HP and 170 lbs of torque should be easy to obtain with that setup. I'll be curious to see what kind of a life expectancy that bad boy has.
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Old 11-26-2009, 10:54 AM
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Quote:
Originally Posted by rootercycles View Post
I plan on the Southern Motorcycle Works 127 mill on my next build. I like the finish on the motor and am running an Ultima 127 on my current ride. It's a fire breathin' monster!
Yeah finish is very good on the SMW motors. They do additional polishing on them besides the factory polishing. The diamond cut is also very nice. The motor looks like chrome when I clean it up a little. Funny thing is that I haven't had a heat prob with mine yet. I check oil temps immediately after a 40-50 mile cruise and it is about 5 degrees higher than the wifes TC 88 w/stage 1(200deg.) I was very surprised to see that. Esp. in TN summer temps. No oil cooler at the time but adding one now just in case.

Also, I talked to Randy 2 days ago to find out what actually was upgraded in the motor and he said Crane pushrods, HD rockers, HD nose cone. S&S Rocker covers, probably alot more important shit I forgot. I also found out he uses a .640 lift cam instead of the .625 one listed for the 127 on the Ultima site. If I am not mistaken, and I very well could be, the .640 is for the 130 and 140" motors. Anyway that
b!tch is fast. He also said they start with Ultima cases and castings and build from there.

You won't be disappointed trust me.

Update on cam situation: I emailed RB Racing just now and asked for best cam to go with their LSR 2-1 on a 127. Response was S&S 640. Then I asked for full cam specs and the S&S 640 is extremely close to the factory Ultima .640 lift cam. A few specs are off by 1 degree. Looks like I am keeping the factory for now to see what it can do with some good headwork, filter and exhaust and maybe a little bump in comp.

clspht, glad you got me thinkin' about the cams. You prob saved me alot of $$$ in doing so.

Scary, what you got in that thing?

Thanks for everyones help and input so far.
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Old 11-26-2009, 11:03 AM
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I wish I was further along so that I could order the thing. I know they have a long warranty, but I'm about 6 months out. Dirty South Choppers is building my frame right now...
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Old 09-02-2010, 11:45 AM
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How did this turn out or any updates?
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Old 09-02-2010, 11:53 AM
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160 HP is a bit of a stretch, but you have a good solid set-up with lots of balls.
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Old 09-02-2010, 02:11 PM
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I am curious what the stock #s are for the 127" I dont beleive the Ultima rating of 140hp , thinking more like 120 /125hp at the wheel for the average tuned scoot?
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