Softail Models Standard, Custom, Night Train, Deuce, Springer, Heritage, Fatboy, Deluxe, Rocker and Cross Bones.
Sponsored by:
Sponsored by:

Looking for quality horsepower / torque mods

Thread Tools
 
Search this Thread
 
  #21  
Old 04-15-2009, 05:36 PM
Chazmanian's Avatar
Chazmanian
Chazmanian is offline
R.I.P. BROTHER
Join Date: Dec 2008
Location: Colorado Springs
Posts: 3,076
Likes: 0
Received 4 Likes on 4 Posts
Default

Originally Posted by priceamp
Holly crap, a tad over 40 mph in 1st gear? Why don't you just rev it up and start off in 2nd?
I start off in 2nd all the time. The launch is hard on my clutch though.

The 211's cams running with ported heads, some extra compression and a decent pipe are screamers. I'm convinced that my motor wont see 40K with catastrophic failure.

I get 125 miles around town from filled to low fuel light.....

Its loud and angry through a set of baffled BSS. My upcoming pipe change to a Rinehart Rich Urban Biker Sooper Poseur 2-1 pipe should make for an interesting comparo on the dyno after having it tuned....

I wouldnt be suprised a bit if those Big Shot Staggereds make more HP and dont give up but maybe 2-3 TQ against the Riney....Wouldnt be suprised a bit.


Just to shiny? For my upcoming plans!
 
  #22  
Old 04-15-2009, 05:42 PM
oct1949's Avatar
oct1949
oct1949 is offline
Club Member
Join Date: May 2007
Location: Northeast of Indy..
Posts: 145,895
Received 819 Likes on 805 Posts
Default

Originally Posted by priceamp
Holly crap, a tad over 40 mph in 1st gear? Why don't you just rev it up and start off in 2nd?
If you just wind your B motor to 5,200rpms you will be doing close to
40 in 1st, 60 in 2nd, 80 in 3dr, 100 in 4th.

also again the Big Boyz webpage has a MPH vs RPM page to help you....
 

Last edited by oct1949; 04-15-2009 at 05:50 PM. Reason: added last line.
  #23  
Old 04-15-2009, 05:49 PM
jd8181's Avatar
jd8181
jd8181 is offline
Road Captain
Join Date: Jan 2009
Location: Indiana
Posts: 729
Likes: 0
Received 1 Like on 1 Post
Default

here is another good web site to check out. www.harleytechtalk.net it's all about performance from harley's. there are a lot of dyno sheets and a lot of different builds, and a lot of engine builders on there that really know there stuff and and answer about any question.
 
  #24  
Old 04-15-2009, 07:02 PM
priceamp's Avatar
priceamp
priceamp is offline
Road Captain
Join Date: Jun 2006
Location: Portland, OR
Posts: 581
Likes: 0
Received 7 Likes on 7 Posts
Default

Originally Posted by oct1949
If you just wind your B motor to 5,200rpms you will be doing close to
40 in 1st, 60 in 2nd, 80 in 3dr, 100 in 4th.

also again the Big Boyz webpage has a MPH vs RPM page to help you....
Guess I'm a ***** :-) I've hit 35 mph in 1st before which must be around 4800 rpms and I've hit 60 mph in 3rd many times. And each time, I'm blown away by the power. Do wish I had a tach sometimes. I think I would push this bike harder if I knew what rpms I was running. Guess I'm still a little concerned to blow my bike up. I know, guys tell me, don't worry, you'll hit the rev limiter, but guess I ain't got the nads to take my $20K investment to the limit.
 
  #25  
Old 04-15-2009, 07:14 PM
Chazmanian's Avatar
Chazmanian
Chazmanian is offline
R.I.P. BROTHER
Join Date: Dec 2008
Location: Colorado Springs
Posts: 3,076
Likes: 0
Received 4 Likes on 4 Posts
Default

Originally Posted by oct1949
If you just wind your B motor to 5,200rpms you will be doing close to
40 in 1st, 60 in 2nd, 80 in 3dr, 100 in 4th.

also again the Big Boyz webpage has a MPH vs RPM page to help you....
Well that makes sense as my peak horse power is at 5500 RPM. I hold it wide open and hammer into 2nd right at 43, Shift into 3rd gear when I'm going over 60. Thats when I'm "On It". Most of the time I just sputter around!

I swear this build would breathe straight fire down at sealevel. The power loss up here is amazing.

 
  #26  
Old 04-15-2009, 07:24 PM
Chazmanian's Avatar
Chazmanian
Chazmanian is offline
R.I.P. BROTHER
Join Date: Dec 2008
Location: Colorado Springs
Posts: 3,076
Likes: 0
Received 4 Likes on 4 Posts
Default

Tjose Big Boyz heads are cheap for the gains they are getting.

Look at these dyno runs.http://www.bigboyzheadporting.com/forumdisplay.php?f=4
 
  #27  
Old 04-15-2009, 07:46 PM
GregH's Avatar
GregH
GregH is offline
Cruiser
Join Date: Mar 2009
Posts: 101
Likes: 0
Received 0 Likes on 0 Posts
Default

I hit 50 in 1st and that's when it bounces the limiter. It's better for me to shift at 45-47 from 1st to 2nd. I hit 75 in 2nd and 95 in 3rd without hitting the limiter. My limiter is set at 6250 rpm. My max HP is at 5800 rpm and still have 105 torque. Gotta hang on!
 
  #28  
Old 04-15-2009, 08:00 PM
KumaRide's Avatar
KumaRide
KumaRide is offline
Elite HDF Member
Join Date: May 2008
Location: Newcastle, Ca.
Posts: 4,620
Received 187 Likes on 148 Posts
Default

Originally Posted by krazn8


... It sounds like Cams, and head work, and carb tuning, w/ AC and pipes is what I am looking at. I do not want to get into boring just yet. Maybe down the road when this bike becomes my project bike.

Q
With 50k miles and all the stuff you are considering, do not disregard pistons and boring cylinders. If you have the heads off for head work, and gas tank, rocker covers, rockers boxes, breather... you are only a couple bolts away from covering all the bases and having a complete motor rebuild. Pistons and bore will cost only about $300 with gaskets if you do the work yourself. Most importantly, you will definitely feel the difference verses just a cam, and pipes...

I did not do a top end rebuild when I installed the cam because I bought the bike used last summer and it only had 1,000+ miles. When it has ~30k miles, it will come apart again. It will need new tensioners then, and while at it, BB for sure - cant wait!!
 
  #29  
Old 05-27-2009, 04:26 PM
krazn8's Avatar
krazn8
krazn8 is offline
Intermediate
Thread Starter
Join Date: Apr 2009
Location: texas
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for all the advice guys - it has been very helpfull!!
I have decided to do a t-man kit and take the bike to a 103"
rework my heads, bore my jugs, new adjustable pushrods, pistons, and so on, with gear driven cams - no chain

nate
 
  #30  
Old 05-27-2009, 05:16 PM
NTrain177's Avatar
NTrain177
NTrain177 is offline
Cruiser
Join Date: Apr 2008
Posts: 152
Likes: 0
Received 0 Likes on 0 Posts
Default

tearing down the motor at 30k??? If that is the rule of thumb thats nuts. I didn't plan on doing anything like that till like 60k plus!!!!
 


Quick Reply: Looking for quality horsepower / torque mods



All times are GMT -5. The time now is 08:34 PM.


Top

© 2024 MH Sub I, LLC dba Internet Brands

Follow Us        



When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.