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H-D tire shredder - why so LOW HP?

  #21  
Old 01-11-2019, 08:47 PM
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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, 10:58 PM
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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...
 
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Old 01-11-2019, 11:13 PM
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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 11:18 PM.
  #24  
Old 01-11-2019, 11:47 PM
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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, 09:16 AM
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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? What’s crappy about it? They are way faster and quicker so.......

dont confuse them? They are related!!!!! Lmfao
 
  #26  
Old 01-12-2019, 09:42 AM
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[QUOTE=harlot;17951372]sorry for the typo in title, i meant to say LOW instead of love

Freudian slip
 
  #27  
Old 01-12-2019, 01:42 PM
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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 01:44 PM.
  #28  
Old 01-13-2019, 01:08 PM
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Originally Posted by Madnss View Post


lmao!!!!!!

Crappy tq? What’s 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, 05:27 PM
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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 what’s your point? Lol
 
  #30  
Old 01-13-2019, 05:29 PM
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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?
 

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