Dyno numbers for an EVO?
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Road Master
Joined: Aug 2010
Posts: 992
Likes: 143
From: eastern NC
Dyno numbers for an EVO?
After reading some in the EVO section, I decided to switch out the cam in the EVO. The bike has always ran good and the previous owned has added just about everything you can add to the outside.
When I took it to the local wrench I decided to let him put it on the DYNO for a few adjustments and he came back and told me the cam in place now was not stock. It produces 73.5 HP @ 4500 RPM and 79.2 Ft lb of torque@ between 4000-5200 RPM.
I know there is a ton of knowledge here. How does those numbers compare with a stock EVO or twinkie and what cam do you think it may be?
All thoughts are appreciated. I will also post in the General section .
When I took it to the local wrench I decided to let him put it on the DYNO for a few adjustments and he came back and told me the cam in place now was not stock. It produces 73.5 HP @ 4500 RPM and 79.2 Ft lb of torque@ between 4000-5200 RPM.
I know there is a ton of knowledge here. How does those numbers compare with a stock EVO or twinkie and what cam do you think it may be?
All thoughts are appreciated. I will also post in the General section .
Seasoned HDF Member
Joined: Aug 2008
Posts: 5,081
Likes: 2,159
From: Ohio
Those numbers are not bad, it can take a more than a thousand dollar bill to get to 80-80
Listed referance for you.
http://www.nightrider.com/biketech/hplist_evo80.htm
Listed referance for you.
http://www.nightrider.com/biketech/hplist_evo80.htm
Tourer
Joined: Apr 2010
Posts: 294
Likes: 0
From: griffin ga
put mine on the dino at thunder beach in panama city 71.6 hp and 81.6 ft/lb of torque.it has a ev27 cam and has a thunderslide kit in the carb and hooker pipes with a k/n air filter now i need to go up about 2 sizes on my main jet and put in torque cones.the dino guy said if i done that it would bring up peck hp to around 76 because it was lean on the top end and the torque cones would help the torque on the bottom end with the pipes
Cruiser
Joined: May 2009
Posts: 175
Likes: 2
From: Hahntown Pa.
After reading some in the EVO section, I decided to switch out the cam in the EVO. The bike has always ran good and the previous owned has added just about everything you can add to the outside.
When I took it to the local wrench I decided to let him put it on the DYNO for a few adjustments and he came back and told me the cam in place now was not stock. It produces 73.5 HP @ 4500 RPM and 79.2 Ft lb of torque@ between 4000-5200 RPM.
I know there is a ton of knowledge here. How does those numbers compare with a stock EVO or twinkie and what cam do you think it may be?
All thoughts are appreciated. I will also post in the General section .
When I took it to the local wrench I decided to let him put it on the DYNO for a few adjustments and he came back and told me the cam in place now was not stock. It produces 73.5 HP @ 4500 RPM and 79.2 Ft lb of torque@ between 4000-5200 RPM.
I know there is a ton of knowledge here. How does those numbers compare with a stock EVO or twinkie and what cam do you think it may be?
All thoughts are appreciated. I will also post in the General section .
4th Gear
Joined: Sep 2010
Posts: 8
Likes: 0
From: Des Moines,Iowa
put mine on the dino at thunder beach in panama city 71.6 hp and 81.6 ft/lb of torque.it has a ev27 cam and has a thunderslide kit in the carb and hooker pipes with a k/n air filter now i need to go up about 2 sizes on my main jet and put in torque cones.the dino guy said if i done that it would bring up peck hp to around 76 because it was lean on the top end and the torque cones would help the torque on the bottom end with the pipes
If it is lean on the top end put some fuel to it!!!
Putting cones in will help bottom end torque and hurt top end HP.
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Cruiser
Joined: Oct 2009
Posts: 233
Likes: 0
From: Canada...west coast
Put mine on the dyno at Thunder Beach in Panama City...71.6 hp and 81.6 ft/lb of torque. It has a EV27 cam and has a Thunderslide kit in the carb and Hooker pipes with a K-N air filter. Now I need to go up about 2 sizes on my main jet and put in torque cones. The dyno guy said if I done that it would bring up peak hp to around 76 because it was lean on the top end and the torque cones would help the torque on the bottom end with the pipes
EV27, Smitty heads, 9.6 compression, modified CV, and much modified stock exhaust, with crossover. Many dyno runs on this set-up to get the torque curve right. Tried many baffle setups in the stock H-D mufflers (shortened with 2 1/4" exit) ..pays to have a buddy in the muffler business to make the baffles up the way you want them, and a dyno across the street to try them on
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Elite HDF Member
Joined: Oct 2005
Posts: 3,872
Likes: 83
From: Canton, Michigan
Don't know what cam you've got, but my 93 FLHS with an EV27, street ported heads, tuned CV carb, SE air cleaner, Dyna 2000 ignition, and SuperTrapp slipons with 18 discs: (approx) 80/80. Still gets mid to high 40's mpg. IMHO, this is a very user friendly setup, lots of power, good mpg's, and decent 'around town' (low speed) performance.
Again, IMO: In order to push anywhere above the 80/80 threshold, on an 80" motor, you will need to increase compression, additional head work, more aggressive cam/timing, carb change, and tuning. Or install a big bore or stroker.
Again, IMO: In order to push anywhere above the 80/80 threshold, on an 80" motor, you will need to increase compression, additional head work, more aggressive cam/timing, carb change, and tuning. Or install a big bore or stroker.
Last edited by Hackd; Oct 23, 2010 at 06:38 AM.