Planning my build package.....
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Novice
Joined: Aug 2009
Posts: 15
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From: Georgia
Planning my build package.....
And I am hoping some of you will chime in and tell me what you think and or what I can do to make it better.
So I have decided to get a D&D Fat-Cat 2 into 1 with a SE HB filter and a SERT. That I guess will be stage 1...the begining of the end of my savings account
.
Now in trying to plan for what I want to do in the future (tax return
)and what I can expect in the way of returns for my efforts....
I have an '09 Fat Bob with a 95" and want to wake it up, so I plan to do a little engine work. I am thinking about some Stage II headwork (1.9 int / 1.63 exh valves 165-170 cfm flow) and with that, maybe some Woods TW6 or some Andrews 55H cams. Compression will be right around 10-1 ( will that need comp releases?). Is there anything else I would need to do to hit these numbers? What about the cams, stay with chain or go with gears? The answers to these questions seem to be based on experiance with these type of engine builds.
I am trying to get 110 + ft.lb. /100 + hp-ish power numbers on a streetable build. I don't want to have to wring the motor out everytime I want to feel some power either. A ways down the road, I may go to 103", but I really don't see myself going any further with the build than that. If the headwork and cams make me happy enough, it won't see the 103" untill it is time for a rebuild several years from now.
So I have decided to get a D&D Fat-Cat 2 into 1 with a SE HB filter and a SERT. That I guess will be stage 1...the begining of the end of my savings account
.Now in trying to plan for what I want to do in the future (tax return
)and what I can expect in the way of returns for my efforts....I have an '09 Fat Bob with a 95" and want to wake it up, so I plan to do a little engine work. I am thinking about some Stage II headwork (1.9 int / 1.63 exh valves 165-170 cfm flow) and with that, maybe some Woods TW6 or some Andrews 55H cams. Compression will be right around 10-1 ( will that need comp releases?). Is there anything else I would need to do to hit these numbers? What about the cams, stay with chain or go with gears? The answers to these questions seem to be based on experiance with these type of engine builds.
I am trying to get 110 + ft.lb. /100 + hp-ish power numbers on a streetable build. I don't want to have to wring the motor out everytime I want to feel some power either. A ways down the road, I may go to 103", but I really don't see myself going any further with the build than that. If the headwork and cams make me happy enough, it won't see the 103" untill it is time for a rebuild several years from now.
Road Captain
Joined: Jul 2007
Posts: 682
Likes: 1
From: Wichita, KS
You'll never hit 110lb/ft with a 96", period. And if you're doing the heads, just send the cylinders off for the 103" now. Going BB is the only way you're going to make the torque number. The cam choices are good for a 103" tho. You MIGHT make 100/100 with the 96" with just heads and cams, but not much if any more than that.
Good luck and have fun, it only gets worse from here!
Mike
Good luck and have fun, it only gets worse from here!
Mike
Grand HDF Member
Joined: May 2007
Posts: 3,870
Likes: 499
From: Alberta
"I am trying to get 110 + ft.lb. /100 + hp-ish power numbers on a streetable build. I don't want to have to wring the motor out everytime I want to feel some power either."
Then you'll need cubes...look at some dyno sheets; never mind the peak numbers but focus on where in the RPM band the TORQUE comes on and how smooth the curve is. You should be able to find a build that represents what you want...then carefully choose a builder and go from there...oh yeah; you can check back here for free opinions, too.
Then you'll need cubes...look at some dyno sheets; never mind the peak numbers but focus on where in the RPM band the TORQUE comes on and how smooth the curve is. You should be able to find a build that represents what you want...then carefully choose a builder and go from there...oh yeah; you can check back here for free opinions, too.
Outstanding HDF Member
Joined: May 2008
Posts: 2,166
Likes: 4
From: la
http://www.woodcarbs.com/images/tc96efitw6-6-3.jpg "You'll never hit 110lb/ft with a 96",period."/// It can be done.
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Novice
Joined: Aug 2009
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From: Georgia
I've seen dyno results with pretty much what I described and that's where I was referencing my numbers from. The D&D Fat-Cat seems to be able to make more power than the pro-pipe and the Reinhardt from all the graphs I have seen of similar builds. One of the builds I came across had 115/110 with the only difference being a 51mm TB and it was a 95" I think.....but maybe it was a 103", I'll have to see if I can put up a few links of what I've found so far.
Thread Starter
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Novice
Joined: Aug 2009
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From: Georgia
It's good to know I can save about $400+ on doing the gear conversion. Thanks paul s.
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Novice
Joined: Aug 2009
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From: Georgia
Here's a few links....
http://www.nrhsperformance.com/dynoroom.shtml
http://www.johnsonenginetechnology.c...rformance.html
http://www.cycle-rama.com/twin_cam_dyno_charts.htm
http://www.nightrider.com/biketech/h...e3_128dyno.htm
so it can't be done eh? lol just picking on you bro.
http://www.nrhsperformance.com/dynoroom.shtml
http://www.johnsonenginetechnology.c...rformance.html
http://www.cycle-rama.com/twin_cam_dyno_charts.htm
http://www.nightrider.com/biketech/h...e3_128dyno.htm
so it can't be done eh? lol just picking on you bro.
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Cruiser
Joined: Feb 2009
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i just built my 07 street bob. 103" woods tw6 cams 1.90-1.60 valves headwork 10.5-1 compression (yes you will need compression releases) 2-1 Fatcat exhaust im getting it dyno tuned next week ill let you know the #'s but i dont think you will get 110+TQ out of a 96, its been done but thats hard to do.
Outstanding HDF Member
Joined: Dec 2008
Posts: 2,419
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From: Ashland Ore.
i just built my 07 street bob. 103" woods tw6 cams 1.90-1.60 valves headwork 10.5-1 compression (yes you will need compression releases) 2-1 Fatcat exhaust im getting it dyno tuned next week ill let you know the #'s but i dont think you will get 110+TQ out of a 96, its been done but thats hard to do.