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CVO Technical => Twin Cam => Topic started by: JoeVibe on August 21, 2016, 09:52:58 AM

Title: What about the S&S 143?
Post by: JoeVibe on August 21, 2016, 09:52:58 AM
S&S says:

"This is an ultra performance/race engine. Longevity, engine noise, vibration and throttle sensitivity have all been compromised to reach this level of performance while fitting in a stock chassis and as such is not suitable for every situation."

So, has anyone installed one yet? I'm curious how much longevity and reliability have been compromised, assuming it's not used as an all out race engine.
Title: Re: What about the S&S 143?
Post by: SBB on August 21, 2016, 11:03:16 AM
S&S says:

"This is an ultra performance/race engine. Longevity, engine noise, vibration and throttle sensitivity have all been compromised to reach this level of performance while fitting in a stock chassis and as such is not suitable for every situation."

So, has anyone installed one yet? I'm curious how much longevity and reliability have been compromised, assuming it's not used as an all out race engine.


A friend of mine has one in his 15 Street Glide.
He has almost 10K miles on it.
It is a tire shredder.

SBB



Title: Re: What about the S&S 143?
Post by: Kingspoke on August 21, 2016, 12:38:49 PM
This vid is a year old but gives some feedback about the motor characteristics.
https://www.youtube.com/watch?v=kGs8LPU3T-I

Here's one in a Dyna! :vrolijk27:
https://www.youtube.com/watch?v=AmHm6B-Zq6M

Way too much motor for me!
Title: Re: What about the S&S 143?
Post by: JCZ on August 21, 2016, 06:14:21 PM
Almost $10k for the motor and then you're going to have to upgrade the rest of the drive train to stand up to what this motor is going to put out.  But damn it'd be a lot of fun........
Title: What about the S&S 143?
Post by: Unbalanced on August 21, 2016, 08:03:51 PM
Joe,

There are tradeoffs you have to be ready to accept if you do something like this.   Belts, Mainshafts, Driveability (low speed), gas mileage, heat / traffic and being ultra conservative in the rain, clutch pull and feel.   

Does the HD compensator stand up to this or are you relegated to a solid sprocket I dont have have a newer compensator since my bike is an 02 so i have no experience there?   

Can you get a clutch that will handle the power, will you be able to pull it in over and over in traffic or at a light, how hard will it be to pull in a clutch under big power.

Guess in time the feedback will be out there. 
Title: Re: What about the S&S 143?
Post by: GMR-PERFORMANCE on August 22, 2016, 10:27:35 AM
16 SG D&D pipe AIM lock up with a 480 spring , S&S 70 MM t/b S&S injectors  Rest is stock customer has just over 10,000 . He rode to Houston a few times and then it was ridden to strugis and then a few other trips. The clutch does struggle on a 6 th gear pull on the dyno but on the street its not been an issue. But then again its making 140 at a low RPM .. IF the clutch was able to hold better I would have made a 2000 start point but it was not in the cards. The engine runs great down there and street manners are extremely nice. I pulled the clutch apart at the 10K service it looked great. MPG has been about 31-33 ( this engine run's 13.5 afr at the leanest I set it at 13.2 to be safe, you cannot run it at 14.3 etc in the cruise as it will run too hot, that is PER S&S )  To me that is about the only draw back is MPG

(http://i1290.photobucket.com/albums/b537/Gmr-Performance/143%20SS/ss%20143_zpsi7xglrzr.png) (http://s1290.photobucket.com/user/Gmr-Performance/media/143%20SS/ss%20143_zpsi7xglrzr.png.html)
Title: What about the S&S 143?
Post by: Unbalanced on August 22, 2016, 11:25:26 AM
Was that the CF2 complete with EVO hub?  Which springs black?
Title: Re: What about the S&S 143?
Post by: GMR-PERFORMANCE on August 22, 2016, 11:55:52 AM
No it was not the CF2  it was the AIM lock up with spring..  In the past the CF2 did not work well for the larger bikes I had done and cost wise I did not feel I wanted to go there again . I know that they have made some changes but in the past the CF2 ran the stock clutch pack.  From what I still know it is still running the stock pack or a +1  there are no fibers or steels with the kit unless you add that. The billet hub is a nice bonus if you want to call it that . You are after all paying for it.


the ability to adjust the lock up is a new feature.
Title: Re: What about the S&S 143?
Post by: FlaHeatWave on August 22, 2016, 02:20:14 PM
No it was not the CF2  it was the AIM lock up with spring..  In the past the CF2 did not work well for the larger bikes I had done and cost wise I did not feel I wanted to go there again . I know that they have made some changes but in the past the CF2 ran the stock clutch pack.  From what I still know it is still running the stock pack or a +1  there are no fibers or steels with the kit unless you add that. The billet hub is a nice bonus if you want to call it that . You are after all paying for it.


the ability to adjust the lock up is a new feature.

Stock components otherwise??
Title: Re: What about the S&S 143?
Post by: GMR-PERFORMANCE on August 22, 2016, 02:22:55 PM
yes it was a brand new bike with 6 miles on it . I pulled the stock engine installed the 143 and its parts kit DD pipe the AIM and tuned it .
Title: Re: What about the S&S 143?
Post by: Fltrx143 on August 22, 2016, 06:10:30 PM
 I only have about 3000 on my 143 now, I will say if you have never owned a big inch motor you probably won't be happy. It does not like stop and go traffic and runs about 260+ degree oil on average. It does have 167hp/155tq.It is the smoothest motor I  have ever owned above 3250 but will rattle every bolt loose at idle! It pulls hard to 120mph and I still have about 2500 rpm until redline! It cost me an arm and a leg but it sure is fun!!! It is definitely not for everyone! And S&S is the best customer service company I have ever had the pleasure dealing with they went way above and beyond to make sure my install and Bike were in perfect running order. I am definitely a customer for life! Amazing company!
Title: Re: What about the S&S 143?
Post by: FlaHeatWave on August 22, 2016, 06:27:53 PM
My Bud's at Oasis Cycle in Brandon, MS have installed 3 of them so far...

"It's a whole different animal" :pepper: :carrot: :bananarock:
Title: Re: What about the S&S 143?
Post by: SDCVO on August 22, 2016, 10:49:29 PM
I really want one...
Title: Re: What about the S&S 143?
Post by: GMR-PERFORMANCE on August 23, 2016, 10:30:49 AM
Not sure about the heat that is not a issue when correctly tuned from my experience. oil temp that is not bad it could be a bit lower but region , tune, etc will have effect on that , as well where the oil temp sensor is also located .   It is extremely smooth as well not a rattling engine what so ever. But it could be that with each chassis we know the engine sits in a different location your may be bound up slightly .

Not uncommon to have odd fitment heck I had a 15 I just did that the DD 2-1 fat cat fount me for over an hour to get the pipe one. the 117 drop on build right after it same year bike same pipe slipped on like butter.
Title: Re: What about the S&S 143?
Post by: TReid on August 22, 2021, 08:33:36 PM
Hey BOYZ
I'm in thr process of dropping a 143 Dragon in my 03 ultra, shes already chain drive, Baker trans , airshifter n she's on Nitrous so the bottle will go on this new motor.  I see a few guys has purchased the DRAGON, what's ur thoughts on this BEAST n longevity on her n whats the does n don't s with this n what should I be aware of? Oh I bought theock up clutch for her too. THANKS FOR ANY REPLYS CHEERS!...🍻