Notices
General Harley Davidson Chat Forum to discuss general Harley Davidson issues, topics, and experiences.
Sponsored by:
Sponsored by:

H-D tire shredder - why so LOW HP?

 
  #21  
Old 01-11-2019, 07:47 PM
Dirty Harry's Avatar
Dirty Harry
Dirty Harry is offline
Road Warrior
Join Date: Mar 2007
Location: Michigan
Posts: 1,476
Received 218 Likes on 125 Posts
Default

3319 W Sample StSouth Bend, Indiana
Get Directions
Call (574) 233-0642
Call Flora racing Heads and talk to Jeff Flora. He has built very powerful Harley racing motors and will give you the information you need.
 
  #22  
Old 01-11-2019, 09:58 PM
LoneBone's Avatar
LoneBone
LoneBone is offline
Ultimate HDF Member
Join Date: Aug 2012
Location: Texas
Posts: 7,781
Received 1,034 Likes on 507 Posts
Default

Most don't want a racing motor, they want lots of power and torque all the way thru, all while keeping some semblance of reliability....

My Tire Shredder Kit on my bagger was Dyno Tuned and put up around 110 HP and 120 lbs of Torque....that's not drag strip quality, but it's a HELL of a lot more HP than a stock bagger, and I still have my factory warranty...I work on my own stuff, but for the guys who don't that's a big deal to put some bite in your motor and still be under warranty...
 
  #23  
Old 01-11-2019, 10:13 PM
TriGeezer's Avatar
TriGeezer
TriGeezer is offline
Supporter
Join Date: May 2012
Location: Carlsbad, CA
Posts: 13,456
Received 3,299 Likes on 1,869 Posts
Default

What about FuelMoto?

But, if the OP wants to,preserve the HD ESP, then he better stick with HD.

Edit: OH yeah...FWIW....torque is what shreds your rear tire and gets you up to speed. Horsepower keeps you moving...
 

Last edited by TriGeezer; 01-11-2019 at 10:18 PM.
  #24  
Old 01-11-2019, 10:47 PM
harlot
harlot is offline
Road Captain
Thread Starter
Join Date: Dec 2010
Location: Glendora, Southern Calif
Posts: 502
Likes: 0
Received 6 Likes on 6 Posts
Default

thanks all, lots to ponder, am going to read up more on this topic, and consult with the suggested builders to work out matching components
 
  #25  
Old 01-12-2019, 08:16 AM
Madnss
Madnss is offline
Outstanding HDF Member
Join Date: Dec 2012
Location: river
Posts: 2,454
Received 187 Likes on 129 Posts
Default

don't confuse HP and torque

You can get massive torque with low HP (Harley V Twins) and massive HP with carppy torque (rice rocket inline 4's)
lmao!!!!!!

Crappy tq? Whatís crappy about it? They are way faster and quicker so.......

dont confuse them? They are related!!!!! Lmfao
 
  #26  
Old 01-12-2019, 08:42 AM
Death Valley Ultra's Avatar
Death Valley Ultra
Death Valley Ultra is offline
New Member
Join Date: Nov 2017
Location: Las Vegas, Pahrump & Death Valley
Posts: 100
Received 12 Likes on 12 Posts
Default

[QUOTE=harlot;17951372]sorry for the typo in title, i meant to say LOW instead of love

Freudian slip
 
  #27  
Old 01-12-2019, 12:42 PM
LQQK_OUT's Avatar
LQQK_OUT
LQQK_OUT is offline
Outstanding HDF Member
Join Date: Nov 2006
Location: East Coast, USA
Posts: 2,388
Received 245 Likes on 215 Posts
Default

Originally Posted by Neggy ZRXOA 5248 View Post
You can get massive torque with low HP (Harley V Twins) and massive HP with carppy torque (rice rocket inline 4's)
The liter and open class inline 4's do fairly well in the torque department. My brother's ZX-14R (stock) has at least 100 ft-lbs from 6,000 to 10,000 RPMs. Roll-on power is incredible.
 

Last edited by LQQK_OUT; 01-12-2019 at 12:44 PM.
  #28  
Old 01-13-2019, 12:08 PM
Neggy ZRXOA 5248
Neggy ZRXOA 5248 is offline
Outstanding HDF Member
Join Date: Nov 2005
Location:
Posts: 2,079
Received 110 Likes on 73 Posts
Default

Originally Posted by Madnss View Post


lmao!!!!!!

Crappy tq? Whatís crappy about it? They are way faster and quicker so.......

dont confuse them? They are related!!!!! Lmfao
A Harley will pull a tree stump out from a standing stop in 3rd gear without stalling that is torque
Try that with a rice inline 4, you'd stall it in second gear

I can post the dyno sheets from my 88TC with S&S 509's or the Stage 4 103 ... all sorts of torque
Then I can post the sheets for my Kawi 1200's... great HP, not so great torque, but at 300 pounds lighter you can sacrifice torque for HP

A HD V Twin torque curve is near flat.... you get huge torque from just off idle and a good way across the power band , where I have to wind my C14 up to over 6000 rpm to get 100 ft/lbs of torque out of it... and at 6000 rpm's in any gear you are not worried about torque, you are worried about hanging on as you are closing in on 150+HP

 
  #29  
Old 01-13-2019, 04:27 PM
Madnss
Madnss is offline
Outstanding HDF Member
Join Date: Dec 2012
Location: river
Posts: 2,454
Received 187 Likes on 129 Posts
Default

Originally Posted by Neggy ZRXOA 5248 View Post
A Harley will pull a tree stump out from a standing stop in 3rd gear without stalling that is torque
Try that with a rice inline 4, you'd stall it in second gear

I can post the dyno sheets from my 88TC with S&S 509's or the Stage 4 103 ... all sorts of torque
Then I can post the sheets for my Kawi 1200's... great HP, not so great torque, but at 300 pounds lighter you can sacrifice torque for HP

A HD V Twin torque curve is near flat.... you get huge torque from just off idle and a good way across the power band , where I have to wind my C14 up to over 6000 rpm to get 100 ft/lbs of torque out of it... and at 6000 rpm's in any gear you are not worried about torque, you are worried about hanging on as you are closing in on 150+HP
lmao annnnd whatís your point? Lol
 
  #30  
Old 01-13-2019, 04:29 PM
Madnss
Madnss is offline
Outstanding HDF Member
Join Date: Dec 2012
Location: river
Posts: 2,454
Received 187 Likes on 129 Posts
Default

A HD V Twin torque curve is near flat.... you get huge torque from just off idle and a good way across the power band , where I have to wind my C14 up to over 6000 rpm to get 100 ft/lbs of torque out of it... and at 6000 rpm's in any gear you are not worried about torque, you are worried about hanging on as you are closing in on 150+HP
worried? Who is worried? You? Lmfao

​​​​​​​again, what is your point?
 

Thread Tools
Search this Thread
Featured Sponsors
Vendor Directory

Contact Us - About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: