Need more torque & hp!
Seasoned HDF Member
Joined: Dec 2006
Posts: 8,231
Likes: 6,168
From: Black Hills
RE: Need more torque & hp!
I agree that using a proven combination will avoid a shot in the dark trying to mix and match. See what perfromance engine builders recommend based on experience.
I completely disagree with the statement below. You can have a dependable fire breather based on an Evo. Mine pumps 86 Hp and 92 Tq and has been used hard for 5 years with no problems at all.
I completely disagree with the statement below. You can have a dependable fire breather based on an Evo. Mine pumps 86 Hp and 92 Tq and has been used hard for 5 years with no problems at all.
ORIGINAL: DirtyDave
Find a good Independant shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money. You can only bump up an Evo so much before you run into longevity problems. The cases are the weak link.
Find a good Independant shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money. You can only bump up an Evo so much before you run into longevity problems. The cases are the weak link.
Tourer
Joined: Mar 2007
Posts: 462
Likes: 1
From: Arizona
RE: Need more torque & hp!
ORIGINAL: rizzo
I agree that using a proven combination will avoid a shot in the dark trying to mix and match. See what perfromance engine builders recommend based on experience.
I completely disagree with the statement below. You can have a dependable fire breather based on an Evo. Mine pumps 86 Hp and 92 Tq and has been used hard for 5 years with no problems at all.
I agree that using a proven combination will avoid a shot in the dark trying to mix and match. See what perfromance engine builders recommend based on experience.
I completely disagree with the statement below. You can have a dependable fire breather based on an Evo. Mine pumps 86 Hp and 92 Tq and has been used hard for 5 years with no problems at all.
ORIGINAL: DirtyDave
Find a good Independant shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money. You can only bump up an Evo so much before you run into longevity problems. The cases are the weak link.
Find a good Independant shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money. You can only bump up an Evo so much before you run into longevity problems. The cases are the weak link.
Thread Starter
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Novice
Joined: Nov 2007
Posts: 20
Likes: 0
From:
RE: Need more torque & hp!
ORIGINAL: DirtyDave
Five years tells me nothing, how many miles? My info is from one of the most experianced HD mechs in these parts who is also a Harley drag racer. I have seen it on local guys who pump up thier Evo's about to what your talking about and after 60,000 miles or less things start happening to the motor that stock motors don't have happen. It is because the stock Evo cases are not made to handle that much. Use a after market case, like S&S or Delkron and no problems.
ORIGINAL: rizzo
I agree that using a proven combination will avoid a shot in the dark trying to mix and match. See what perfromance engine builders recommend based on experience.
I completely disagree with the statement below. You can have a dependable fire breather based on an Evo. Mine pumps 86 Hp and 92 Tq and has been used hard for 5 years with no problems at all.
I agree that using a proven combination will avoid a shot in the dark trying to mix and match. See what perfromance engine builders recommend based on experience.
I completely disagree with the statement below. You can have a dependable fire breather based on an Evo. Mine pumps 86 Hp and 92 Tq and has been used hard for 5 years with no problems at all.
ORIGINAL: DirtyDave
Find a good Independent shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money. You can only bump up an Evo so much before you run into longevity problems. The cases are the weak link.
Find a good Independent shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money. You can only bump up an Evo so much before you run into longevity problems. The cases are the weak link.
Robert
Seasoned HDF Member
Joined: Dec 2006
Posts: 8,231
Likes: 6,168
From: Black Hills
RE: Need more torque & hp!
DD, I'm not arguing -I just don't agree.
My enginehas 25-30K on it. It was spec'd by Kendall Johnson, dynoed and tuned in his shop. He builds and races alot of high performance engines. I'd trust his experience and recommendations. It will pull the front wheel up in 3rd and this waswitnessed by around500 ridersin front of the Mayer HD stop during a poker run. Will it go 60K -who knows ?Is there a guarentee any engine will go 60K? No, but we would all hope so. Kendall knows his engines, so far no problems.
I'm sure that any performance build can suffer a failure. Based on the my experience to date, I wouldn't hesitate to use the same spec build again.
Fatboy - I primarily ride the highways/interstate at 55+ because I live in a rural area. I will not hestiate to hammer it down a ramp or on a backroad. Mine also gets decent mileage. When we rode with the kids, we got the same mileage as their 05 RK fuelie with stage I, 44+ Mpg.
DD had a good point - ask around, find an experienced builder/drag racerask them for their suggestions. If you know someone that has a bike with the performance and relibilityyou want I'dbasically "copy" the build.
My enginehas 25-30K on it. It was spec'd by Kendall Johnson, dynoed and tuned in his shop. He builds and races alot of high performance engines. I'd trust his experience and recommendations. It will pull the front wheel up in 3rd and this waswitnessed by around500 ridersin front of the Mayer HD stop during a poker run. Will it go 60K -who knows ?Is there a guarentee any engine will go 60K? No, but we would all hope so. Kendall knows his engines, so far no problems.
I'm sure that any performance build can suffer a failure. Based on the my experience to date, I wouldn't hesitate to use the same spec build again.
Fatboy - I primarily ride the highways/interstate at 55+ because I live in a rural area. I will not hestiate to hammer it down a ramp or on a backroad. Mine also gets decent mileage. When we rode with the kids, we got the same mileage as their 05 RK fuelie with stage I, 44+ Mpg.
DD had a good point - ask around, find an experienced builder/drag racerask them for their suggestions. If you know someone that has a bike with the performance and relibilityyou want I'dbasically "copy" the build.
ORIGINAL: DirtyDave
Five years tells me nothing, how many miles? My info is from one of the most experianced HD mechs in these parts who is also a Harley drag racer. I have seen it on local guys who pump up thier Evo's about to what your talking about and after 60,000 miles or less things start happening to the motor that stock motors don't have happen. It is because the stock Evo cases are not made to handle that much. Use a after market case, like S&S or Delkron and no problems.
ORIGINAL: rizzo
I agree that using a proven combination will avoid a shot in the dark trying to mix and match. See what perfromance engine builders recommend based on experience.
I completely disagree with the statement below. You can have a dependable fire breather based on an Evo. Mine pumps 86 Hp and 92 Tq and has been used hard for 5 years with no problems at all.
I agree that using a proven combination will avoid a shot in the dark trying to mix and match. See what perfromance engine builders recommend based on experience.
I completely disagree with the statement below. You can have a dependable fire breather based on an Evo. Mine pumps 86 Hp and 92 Tq and has been used hard for 5 years with no problems at all.
ORIGINAL: DirtyDave
Find a good Independant shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money. You can only bump up an Evo so much before you run into longevity problems. The cases are the weak link.
Find a good Independant shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money. You can only bump up an Evo so much before you run into longevity problems. The cases are the weak link.
Intermediate
Joined: Nov 2007
Posts: 48
Likes: 2
RE: Need more torque & hp!
To get a different point of view, and this won't be popular in this forum.......
On my '85 EVO, I've got the heads ported-n-polished, larger intake valves, stiffer springs, 0.500" lift cam (stock was 0.465"), S&S Super E, S&S oil pump, Cycle Shack duals with baffles for back pressure, Compufire ignition, and a few other small things, and you know what?.........it was a complete waste of money. I just cruise on my HD, now.
If I want to go fast, I jump on any of my other bikes. In hind-sight and 80k miles later on the FXEF, I'd have been better off buying a cheap, used Japanese 600 sportbike and had better acceleration and handling for the money I sank into my HD. Heck, the puny little 1999 Ducati SS750 with *only* 65 hp at the crank made my HD feel like a slug. If you want to know what fast really is like......especially if you want to throw in lightweight,handling and braking capabilities.....just jump on any liter sportbike. It'll make you have an accident in your pants.
On my '85 EVO, I've got the heads ported-n-polished, larger intake valves, stiffer springs, 0.500" lift cam (stock was 0.465"), S&S Super E, S&S oil pump, Cycle Shack duals with baffles for back pressure, Compufire ignition, and a few other small things, and you know what?.........it was a complete waste of money. I just cruise on my HD, now.
If I want to go fast, I jump on any of my other bikes. In hind-sight and 80k miles later on the FXEF, I'd have been better off buying a cheap, used Japanese 600 sportbike and had better acceleration and handling for the money I sank into my HD. Heck, the puny little 1999 Ducati SS750 with *only* 65 hp at the crank made my HD feel like a slug. If you want to know what fast really is like......especially if you want to throw in lightweight,handling and braking capabilities.....just jump on any liter sportbike. It'll make you have an accident in your pants.
Tourer
Joined: Mar 2007
Posts: 462
Likes: 1
From: Arizona
RE: Need more torque & hp!
You have one of Kendalls motors, I was going to send one for a rebuild but decided to order a new 100", thought it would be faster. Ended up waiting 3 months for the new motor, should of sent it to Kendall.
We (Me and my Brothers)ride 15000 to 20000 miles a year, sometimes more, and the rual roads here have a 65 mph speed limit with 75 mph on the Interstates. Wich translates to 70+ and 80+. I'm sure your motor will last you many years, with your riding habits. I did get over 200,000 miles on a stock evo with no motor problems.
We (Me and my Brothers)ride 15000 to 20000 miles a year, sometimes more, and the rual roads here have a 65 mph speed limit with 75 mph on the Interstates. Wich translates to 70+ and 80+. I'm sure your motor will last you many years, with your riding habits. I did get over 200,000 miles on a stock evo with no motor problems.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
RE: Need more torque & hp!
ORIGINAL: DirtyDave
Find a good Independant shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money.
Find a good Independant shop that can work with you on what type of exhaust, carb and cam combo will work. If you don't put togather parts that work well togather you will wasteyour money.
For very high powers I would start with a new motor from a well known builder, like S&S, to avoid any likely problems with factory casings.
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Road Warrior
Joined: Apr 2006
Posts: 1,456
Likes: 16
RE: Need more torque & hp!
There was a year or so that there were problems with the early EVO cases.I have an 84 and that wasnt the bad year.I think it was the early 90's or late 80's though i cant be sure.Google it and Im sure youll find out more.
As for longevity,and horsepower,I have an 84 FXRP stripped to FXRS style,an Andrews ev3 cam and titanium lifters,Screaming Eagle 40mmcarb(also an 84 year) and also the SE manifold,with a set of Supertrapp 2 into 1 Stainless exhaust packed with 19 disks.It has the 5800 rev limiter and chain drive with the first year wet clutch and dual 11 1/2"front disk brakes.Tuned at home as always.
I also have a 2006 Wide Glide with a Doherty power pacc air cleaner,SERT with a dyno tune from Morony's HD and Vance and Hines Big Shots.
All I can say is the Wide Glide starts easier and runs smoother.That friggin FXR will eat it for lunch,hands down adios amigo.
They can be made to run like hell.
If you want to know what will work on what without spending a fortune go to this siteand look around.
http://www.nightrider.com/
Good luck bro.Your buddies wont know what hit them
As for longevity,and horsepower,I have an 84 FXRP stripped to FXRS style,an Andrews ev3 cam and titanium lifters,Screaming Eagle 40mmcarb(also an 84 year) and also the SE manifold,with a set of Supertrapp 2 into 1 Stainless exhaust packed with 19 disks.It has the 5800 rev limiter and chain drive with the first year wet clutch and dual 11 1/2"front disk brakes.Tuned at home as always.
I also have a 2006 Wide Glide with a Doherty power pacc air cleaner,SERT with a dyno tune from Morony's HD and Vance and Hines Big Shots.
All I can say is the Wide Glide starts easier and runs smoother.That friggin FXR will eat it for lunch,hands down adios amigo.
They can be made to run like hell.
If you want to know what will work on what without spending a fortune go to this siteand look around.
http://www.nightrider.com/
Good luck bro.Your buddies wont know what hit them
Cruiser
Joined: Nov 2007
Posts: 172
Likes: 0
From: SOMEWHERE IN TIME
RE: Need more torque & hp!
from my point of view. i used to have a sporty a long time ago, now my bro just bought one last year. sporties are just going to be faster than the bigger hogs. a fatboy is one of the bigger hogs obviously. bigger hogs can go fast, but you will have to spend quite a bit of money if you want it to perform like a sporty, and it probably still won't. mostbikers grow out of sporties just because they want to move up to a bigger ride. hence the word HOG. HOGS aren't supposed to feel like smaller bikes. It's kinda like a graduation into, hmmmmmmm, how can i frase this without sounding like an ***, well i'll leave up to the imagination. You rarely see someone that's a bit more seasoned on sportsters, well unless they can't afford the bigger HOGS. Us old folk like to go fast sometimes, but it's like a young pup who frolicks all the time, there comes a time when you just don't want to do that kind a play anymore and cruise around on your loud *** sofa grinning from ear to ear. enjoy your fatboy brother.