Head porting advice.
Thread Starter
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Tourer
Joined: Jul 2007
Posts: 444
Likes: 4
From: Albuquerque
Head porting advice.
I have a 2001 Road King with fuel injection. I had the dealer install the SE 95" kit with the SE cam, 203 I believe came with their kit. The bike has the SE air cleaner and SE slip-ons. The 95" kit was installed in the fall of '06. Don't start flaming me for the SE build, I know better now.
I have not been real happy with the way the bike has run since. I lost (butt dyno, no real loss in HP or TQ) bottom end power and the dyno chart had a drop off in between 2500 - 3000 rpms.
Last year I had a PC III installed and dyno tuned the bike at my INDY. It helped quite a bit and got rid of the dip on the dyno chart, but the bike still does not get up and go the way I would like. It still feels soft on the bottom end and I am below 90 max HP and Torque.
I am doing a gear drive conversion in the next few weeks and will be putting the HQ 34 cams in during the conversion. I am hoping that will help a little with the bottom end.
My question is: Would you recommend head porting while I am doing this conversion and how much should I expect to spend? Is there anything else I should be doing at the same time? I was reading a bit about head gaskets to increase compression. Should I ask my Indy about that also?
Any advice would be appreciated. I have a chunk of cash into this motor and I would expect it be better.
Thanks.
I have not been real happy with the way the bike has run since. I lost (butt dyno, no real loss in HP or TQ) bottom end power and the dyno chart had a drop off in between 2500 - 3000 rpms.
Last year I had a PC III installed and dyno tuned the bike at my INDY. It helped quite a bit and got rid of the dip on the dyno chart, but the bike still does not get up and go the way I would like. It still feels soft on the bottom end and I am below 90 max HP and Torque.
I am doing a gear drive conversion in the next few weeks and will be putting the HQ 34 cams in during the conversion. I am hoping that will help a little with the bottom end.
My question is: Would you recommend head porting while I am doing this conversion and how much should I expect to spend? Is there anything else I should be doing at the same time? I was reading a bit about head gaskets to increase compression. Should I ask my Indy about that also?
Any advice would be appreciated. I have a chunk of cash into this motor and I would expect it be better.
Thanks.
Thread Starter
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Tourer
Joined: Jul 2007
Posts: 444
Likes: 4
From: Albuquerque
thanks for the feedback on the cams. Spoke with my INDY today and he recommended HQ 39 cams and a spring kit if we were pulling the heads anyway. He said that cam should really wake up the bike with the 95" kit. So now I am thinking gear drive conversion, HQ 39 cam, and porting heads. When will it ever end?
Road Warrior
Joined: Dec 2008
Posts: 1,639
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From: Australia
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Extreme HDF Member
Joined: Apr 2006
Posts: 10,449
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From: Roswell, GA
thanks for the feedback on the cams. Spoke with my INDY today and he recommended HQ 39 cams and a spring kit if we were pulling the heads anyway. He said that cam should really wake up the bike with the 95" kit. So now I am thinking gear drive conversion, HQ 39 cam, and porting heads. When will it ever end?
Frankly, if you are considering HQ cams (I have HQ-0034's in my '04 EG 88" otherwise stock motor) contact Kevin at HQ; better still, visit their website and use their "cam selector" feature and then call Kevin if you have any questions.
Good luck with your project.
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Thread Starter
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Tourer
Joined: Jul 2007
Posts: 444
Likes: 4
From: Albuquerque
thanks for the info pingman. I will get with my indy Monday and make sure we are not putting in too much cam. I will ask him to call HQ and get a recomendation.
I was just looking on their website and it says the 39 cam is for 95" ported motors and will work 9.5 to 10.?, My SE kit should be close to a 9.5 compression, right? maybe not.
I am on cam, build information overload at this point.
I was just looking on their website and it says the 39 cam is for 95" ported motors and will work 9.5 to 10.?, My SE kit should be close to a 9.5 compression, right? maybe not.
I am on cam, build information overload at this point.
Elite HDF Member
Joined: Mar 2006
Posts: 4,722
Likes: 5
From: Biddeford, Maine
www.bigboyzheadporting.com
The 203 cam is OK, but they need a little compression to really start to work good. Have your heads ported/polished then also have them CCed and milled to bring the compression up a bit............cost you about $395 + shipping.
Give Bean a call......he'll take care of you.
Steve
The 203 cam is OK, but they need a little compression to really start to work good. Have your heads ported/polished then also have them CCed and milled to bring the compression up a bit............cost you about $395 + shipping.
Give Bean a call......he'll take care of you.
Steve