~100HP, split the cases?
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Road Master
Joined: May 2012
Posts: 1,023
Likes: 18
From: OREGON
~100HP, split the cases?
I understand that if I don't want to worry about it and for piece of mind, it's a must. But is it necessary?
I'll be throwing a ported and flowed, tall cam, and 95" at the DX (05) soon. Expect to be at or just above 100HP, and I'll want to, not only use but, abuse all 100 of em. Am I gonna end up scissoring my crank? Is the Timken upgrade alone worthy of the time and money to split the cases?
Thanks.
BTW, not really interested in a stroker.
I'll be throwing a ported and flowed, tall cam, and 95" at the DX (05) soon. Expect to be at or just above 100HP, and I'll want to, not only use but, abuse all 100 of em. Am I gonna end up scissoring my crank? Is the Timken upgrade alone worthy of the time and money to split the cases?
Thanks.
BTW, not really interested in a stroker.
Elite HDF Member
Joined: May 2012
Posts: 3,747
Likes: 5
From: Central Cali
I understand that if I don't want to worry about it and for piece of mind, it's a must. But is it necessary?
I'll be throwing a ported and flowed, tall cam, and 95" at the DX (05) soon. Expect to be at or just above 100HP, and I'll want to, not only use but, abuse all 100 of em. Am I gonna end up scissoring my crank? Is the Timken upgrade alone worthy of the time and money to split the cases?
Thanks.
BTW, not really interested in a stroker.
I'll be throwing a ported and flowed, tall cam, and 95" at the DX (05) soon. Expect to be at or just above 100HP, and I'll want to, not only use but, abuse all 100 of em. Am I gonna end up scissoring my crank? Is the Timken upgrade alone worthy of the time and money to split the cases?
Thanks.
BTW, not really interested in a stroker.
Outstanding HDF Member
Joined: Aug 2011
Posts: 2,325
Likes: 7
From: SE Illinois
So 95" with cams & ported/flowed heads? What compression you gonna run?
If you're thinking it's gonna be over the 100hp mark & ride hard, then yes I would weld/true the crank with Timken lefty bearing.
Expensive and time consuming...yes, but if you're gonna be over 100 it would be a good idea IMO.
If you're thinking it's gonna be over the 100hp mark & ride hard, then yes I would weld/true the crank with Timken lefty bearing.
Expensive and time consuming...yes, but if you're gonna be over 100 it would be a good idea IMO.
Elite HDF Member
Joined: Sep 2012
Posts: 3,791
Likes: 57
From: N Texas
If you are going to really "abuse" it, then yes get your crank fixed up and the Timken. If you are just going to "hot dog" it a bit and not go too crazy, then I would just check my crank run out and decide whether or not to do something based on the reading.
yes upgrade the bearing (lefty will work fine) and weld/true... i have seen prob 10 guys that where not even 100/100 this summer alone that now have out of phase cranks... see it allthe time. do a google search you will see what i mean. split them 100% or you will do it later when you have to rebuild your motor again. Unless you are going to baby the bike, then there is no point
Stellar HDF Member
Joined: Aug 2012
Posts: 2,664
Likes: 184
From: Indiana, USA
I purchased an '03 new and started adding torque. heard of the left bearing problems early on but it wasnt happening to mine. Then all of a sudden on a road trip with my son, he was on the '03 and I was on my'13, the '03 started sounding like it was dragging a chain. New oil pump, lifters, pistons, and a hot forge plugged, welded and balanced set of wheels later she is ok.
Bottom line is in my opinion, if you are not stock and you use the added torque you will scissor the flywheel asm sooner or later and later always cost more.
See my profile to see my 95" scissored wheel asm
Bottom line is in my opinion, if you are not stock and you use the added torque you will scissor the flywheel asm sooner or later and later always cost more.
See my profile to see my 95" scissored wheel asm
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Stellar HDF Member
Joined: Aug 2012
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From: Indiana, USA
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Grand HDF Member
Joined: Sep 2010
Posts: 3,580
Likes: 215
From: Illinois
Needless to say you got your answer.
I definitely beefed up my lower end casue I wanted to use the **** out of the money I spent building it....why add crazy power to take a Sunday stroll.
Crank can be messed up on a stock bike, not just modded, but it all goes back to how you ride.
I definitely beefed up my lower end casue I wanted to use the **** out of the money I spent building it....why add crazy power to take a Sunday stroll.
Crank can be messed up on a stock bike, not just modded, but it all goes back to how you ride.
Seasoned HDF Member
Joined: Apr 2013
Posts: 32,851
Likes: 17,887
From: Newcastle, OK
I understand that if I don't want to worry about it and for piece of mind, it's a must. But is it necessary?
I'll be throwing a ported and flowed, tall cam, and 95" at the DX (05) soon. Expect to be at or just above 100HP, and I'll want to, not only use but, abuse all 100 of em. Am I gonna end up scissoring my crank? Is the Timken upgrade alone worthy of the time and money to split the cases?
Thanks.
BTW, not really interested in a stroker.
I'll be throwing a ported and flowed, tall cam, and 95" at the DX (05) soon. Expect to be at or just above 100HP, and I'll want to, not only use but, abuse all 100 of em. Am I gonna end up scissoring my crank? Is the Timken upgrade alone worthy of the time and money to split the cases?
Thanks.
BTW, not really interested in a stroker.
