Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

Evo or twin cam..Scott...djl

Thread Tools
 
Search this Thread
 
  #1  
Old 07-01-2014, 10:54 AM
Dry509's Avatar
Dry509
Dry509 is offline
Novice
Thread Starter
Join Date: Jun 2014
Location: Houston
Posts: 19
Received 0 Likes on 0 Posts
Default Evo or twin cam..Scott...djl

New to harley..returning rider. Scott and djl was wondering why you all discuss twin cam and not earlier evo engine mods? Parts not available? Inferior design? Asking cause I am shopping for a used Harley and looking for guidance. As for twin cam have seen comments recommending 2002 and comments recommending 2007 or later due to cam tensioner upgrade. Don't know which way to go. Twin cam or evo and availability of parts?
 

Last edited by Dry509; 07-01-2014 at 10:58 AM.
  #2  
Old 07-01-2014, 10:58 AM
Dry509's Avatar
Dry509
Dry509 is offline
Novice
Thread Starter
Join Date: Jun 2014
Location: Houston
Posts: 19
Received 0 Likes on 0 Posts
Default

In Houston TX by the way.
 
  #3  
Old 07-01-2014, 11:14 AM
wurk_truk's Avatar
wurk_truk
wurk_truk is offline
Outstanding HDF Member
Join Date: May 2008
Location: Ashland Ohio
Posts: 2,543
Likes: 0
Received 15 Likes on 15 Posts
Default

Actually, do 2009 or up. Best frame, best EFI. for a FLH, touring bike. Softies and Dynas are the same in this regards, except for the frames. Softails have basic same frame from EVO days.

You do NOT want an EVO EFI bike, nor do you want a pre 2002 EFI on the TCs. MUST buy a carb bike in those years as the EFI is now so out of date, carb conversions are the only thing left to do if the EFI takes a ****. Buy the carb up front and forget about it.

SOme folks, especially here on HDF, mis think the cranks on TCs. 02 back? HOT cast with a timken left bearing. 03-08 COLD cast with crap INA bearing. Both are forged. The difference is beating the hammers into hot or cold metal. Hot cast was 20th century think. Just like today we use cracked rods in cars, to keep the metalurgy intact -vs- different rod ends (big end) from olden days where the car world had caps from different metals.

I am all over most newer tech.

2009 up comes with superior nitrided INA bearing and left bearing failures are rare. 07 up cranks move a little more than do the older 88" engines, I think this is more to do with the longer arms than to do with anything else. Folks that are true believers in timkens are the same folks that dream of the days for non sealed bearings on their cars. 06 and back (touring) had spring tensioners. 07 still had cable throttles. carp *** stock exhausts. 08 had DBW, but still the wobble frame and **** exhausts. 09s is where Harley finally got things together. For simply the best tunable bikes EFI... that would be 2010 and up. Yes, buy anything 07 up, no carbs left, ALL EFI, so get used to the ideas of these things need tuned. WAY different than 'tuning' an old CV carb.

09 up is the best of the touring bikes. Come either, stock, as 96s or 103s.

How many knucks do we discuss? Evos are simply old bikes and dealers will no longer fix, nor work on them. How can you get service while on the road? It is non existent. Evos, also simply can't keep up with the power that can be made by TCs. WIth a simple cam change and a tune, well over 100/100 sometimes can be had. To gain that much power out of an EVO took a LOT more work and money. Twin cams are superior in most ways, from oil pumps to head designs. Hell... takes way more money with an 88" TC!

Parts are basically an aftermarket deal with EVOs, too. Harely, itself, makes very few parts anymore, if any. IIRC, all EVO stuff is aftermarket these days. Like Shovels and Pans, etc.

EVOs DID sound better, more Harley like. TCs simply no longer have that true Harley sound, but there are millions of aftermarket parts, last longer, make more power stock, let alone modded, even lightly. Can go to any dealer for out of town service, etc....
 

Last edited by wurk_truk; 07-01-2014 at 11:41 AM.
  #4  
Old 07-01-2014, 11:16 AM
Dry509's Avatar
Dry509
Dry509 is offline
Novice
Thread Starter
Join Date: Jun 2014
Location: Houston
Posts: 19
Received 0 Likes on 0 Posts
Default

Thank you for the info.
 
  #5  
Old 07-01-2014, 11:41 AM
wurk_truk's Avatar
wurk_truk
wurk_truk is offline
Outstanding HDF Member
Join Date: May 2008
Location: Ashland Ohio
Posts: 2,543
Likes: 0
Received 15 Likes on 15 Posts
Default

Things to think about when making a decent size investment in what should be pure enjoyment.
 
  #6  
Old 07-01-2014, 12:25 PM
Hillsidecycle.com's Avatar
Hillsidecycle.com
Hillsidecycle.com is offline
Sponsor
Join Date: Dec 2007
Posts: 12,085
Received 816 Likes on 581 Posts
Default

Originally Posted by Dry509
New to harley..returning rider. Scott and djl was wondering why you all discuss twin cam and not earlier evo engine mods? Parts not available? Inferior design? Asking cause I am shopping for a used Harley and looking for guidance. As for twin cam have seen comments recommending 2002 and comments recommending 2007 or later due to cam tensioner upgrade. Don't know which way to go. Twin cam or evo and availability of parts?

I do talk Evo lingo in the Evo section, and answer Evo-related question here also.
Good rugged engine that certainly has stood the test of time.
A T/C with just a little cam upgrade can really have more snap, than the 80"er.
Scott
 
__________________
HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility

OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.
  #7  
Old 07-01-2014, 08:56 PM
Dry509's Avatar
Dry509
Dry509 is offline
Novice
Thread Starter
Join Date: Jun 2014
Location: Houston
Posts: 19
Received 0 Likes on 0 Posts
Default

Thanks to all who replied. I appreciate it.
 
  #8  
Old 07-01-2014, 08:58 PM
Dry509's Avatar
Dry509
Dry509 is offline
Novice
Thread Starter
Join Date: Jun 2014
Location: Houston
Posts: 19
Received 0 Likes on 0 Posts
Default

Thank you!
 
  #9  
Old 07-01-2014, 09:37 PM
Mikula's Avatar
Mikula
Mikula is offline
Tourer
Join Date: Feb 2014
Location: ATX
Posts: 491
Received 8 Likes on 8 Posts
Default

you want evo input, and lots of it, go over to the evo forums and ask. those guys love to tell us twinkie riders that they are superior. filter through all the bull$#it and you'll actually get some usable info out of it. yes, i ride a twin cam, and yes, my next bike will be an evo or even a shovelhead. nothing against the bike i have, i'm not unhappy one bit with my purchase, but nothing sounds, smells or runs quite like an old shovel. evo was the next step up from there. easy to work on, cheaper to fix, etc.

to each their own. it's like car guys, some swear by efi, other guys (like myself) pull that computer and fuel injection out and slap a carb on my projects.
 
  #10  
Old 07-02-2014, 12:02 AM
amasoniii's Avatar
amasoniii
amasoniii is offline
Cruiser
Join Date: Mar 2014
Location: michigan
Posts: 125
Likes: 0
Received 0 Likes on 0 Posts
Default

The only reason TCs are pumping out so much more horsepower is because of cubes. 96"-110" are obviously going to put out more horsepower than 80". However, EVOs of the same size pump out the same torque and horsepower. There is a reason choppers and customs are built off of the EVO design. Granted, companies like S&S have modified the TCs enough to make them reliable with bigger cubes (and harley followed suit), but big cube EVO's continue to be cheaper. If you're putting 6000-10000 in a bike and another 3500-7200 (for a brand new motor), you're still coming out cheaper than a stock, new TC that you have to put a few grand into to get the same power.
 


Quick Reply: Evo or twin cam..Scott...djl



All times are GMT -5. The time now is 02:49 AM.