Thoughts on these cams
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From: san antonio
The OP posted same back in the Twin Cam Motor section which I still wonder the purpose of that section.
I posted this response to the OP's post in that section.
Scott is a fan of Woods cams, so no surprise there. If Scott is re-working the heads, why not go with his recommendation; he has done a few? If looking for an alternative, take a look Cyclerama cams; 575, 570-2 and/or the 595. All have different intake close timing so that must be taken into consideration. If you are looking for earlier torque, bump up the compression, say to 10.5 while keeping CCP around 200 with whatever cam selected. The 510 has always been soft on the bottom in 95" builds.
I posted this response to the OP's post in that section.Scott is a fan of Woods cams, so no surprise there. If Scott is re-working the heads, why not go with his recommendation; he has done a few? If looking for an alternative, take a look Cyclerama cams; 575, 570-2 and/or the 595. All have different intake close timing so that must be taken into consideration. If you are looking for earlier torque, bump up the compression, say to 10.5 while keeping CCP around 200 with whatever cam selected. The 510 has always been soft on the bottom in 95" builds.
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Joined: Mar 2010
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From: Poolville
The OP posted same back in the Twin Cam Motor section which I still wonder the purpose of that section. I posted this response to the OP's post in that section.
Scott is a fan of Woods cams, so no surprise there. If Scott is re-working the heads, why not go with his recommendation; he has done a few? If looking for an alternative, take a look Cyclerama cams; 575, 570-2 and/or the 595. All have different intake close timing so that must be taken into consideration. If you are looking for earlier torque, bump up the compression, say to 10.5 while keeping CCP around 200 with whatever cam selected. The 510 has always been soft on the bottom in 95" builds.
I posted this response to the OP's post in that section.Scott is a fan of Woods cams, so no surprise there. If Scott is re-working the heads, why not go with his recommendation; he has done a few? If looking for an alternative, take a look Cyclerama cams; 575, 570-2 and/or the 595. All have different intake close timing so that must be taken into consideration. If you are looking for earlier torque, bump up the compression, say to 10.5 while keeping CCP around 200 with whatever cam selected. The 510 has always been soft on the bottom in 95" builds.
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From: Adams NY
98hotrodfatboy,
yes it is carbed. I have a call into Bob Wood to speak to him about carbs. I wasn't ruling out the 6h. I was just looking at the specs of the cams that were listed. all are comparable but are very different cams. Currently I'm setting around 9.96 compression static, and around 191 cold cranking pressure. This was by Scott's recommendation. He did tell me that if I were running FI instead of carb, I could have ran the 200 cold crank pressure.
I know there is no magical cam. The cam really only moves the power and torque around in the power band. One does not make 50 hp more than another, unless the cam is the limiting factor in the power production potential of the engine.
Scott was telling me that I should be about that on HP and torque now. give or take bc he has never seen my pipe on a dyno.
djl,
yeah i posted it in the twin cam area. I tried to delete it but couldnt find the way to do that. I will look into the cyclerama cams a little more. I do like running different things than most people. Just like to be different. THe only thing that bothers me is that Bob Wood and scott have both said that the 6h is more of a cam for a bagger. being as Im riding a superglide with my wife on it, is about the same weight as an empty bagger, so its a lighter bike. Well now that I type this out I see the point in it now. bringing the torque on earlier, might be good.
yes it is carbed. I have a call into Bob Wood to speak to him about carbs. I wasn't ruling out the 6h. I was just looking at the specs of the cams that were listed. all are comparable but are very different cams. Currently I'm setting around 9.96 compression static, and around 191 cold cranking pressure. This was by Scott's recommendation. He did tell me that if I were running FI instead of carb, I could have ran the 200 cold crank pressure.
I know there is no magical cam. The cam really only moves the power and torque around in the power band. One does not make 50 hp more than another, unless the cam is the limiting factor in the power production potential of the engine.
Scott was telling me that I should be about that on HP and torque now. give or take bc he has never seen my pipe on a dyno.
djl,
yeah i posted it in the twin cam area. I tried to delete it but couldnt find the way to do that. I will look into the cyclerama cams a little more. I do like running different things than most people. Just like to be different. THe only thing that bothers me is that Bob Wood and scott have both said that the 6h is more of a cam for a bagger. being as Im riding a superglide with my wife on it, is about the same weight as an empty bagger, so its a lighter bike. Well now that I type this out I see the point in it now. bringing the torque on earlier, might be good.
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From: Adams NY
The OP posted same back in the Twin Cam Motor section which I still wonder the purpose of that section. I posted this response to the OP's post in that section.
Scott is a fan of Woods cams, so no surprise there. If Scott is re-working the heads, why not go with his recommendation; he has done a few? If looking for an alternative, take a look Cyclerama cams; 575, 570-2 and/or the 595. All have different intake close timing so that must be taken into consideration. If you are looking for earlier torque, bump up the compression, say to 10.5 while keeping CCP around 200 with whatever cam selected. The 510 has always been soft on the bottom in 95" builds.
I posted this response to the OP's post in that section.Scott is a fan of Woods cams, so no surprise there. If Scott is re-working the heads, why not go with his recommendation; he has done a few? If looking for an alternative, take a look Cyclerama cams; 575, 570-2 and/or the 595. All have different intake close timing so that must be taken into consideration. If you are looking for earlier torque, bump up the compression, say to 10.5 while keeping CCP around 200 with whatever cam selected. The 510 has always been soft on the bottom in 95" builds.
just saw you dyno in the dyno section, very very nice numbers form that 98. Not as radical of a cam as I thought it would have been. I will be looking into the CR cams a little more now that I have seen your dyno chart, I know that the heads and comp ratio have alot to do with it. They def come on later and pull the HP more, but looking at that low end torque, they still have a good bit of bottom. The compression helps alot with that, just dont know if i can safely run that much with a carb on the street. At least Ive been told that I cant and have reliability.
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From: san antonio
just saw you dyno in the dyno section, very very nice numbers form that 98. Not as radical of a cam as I thought it would have been. I will be looking into the CR cams a little more now that I have seen your dyno chart, I know that the heads and comp ratio have alot to do with it. They def come on later and pull the HP more, but looking at that low end torque, they still have a good bit of bottom. The compression helps alot with that, just dont know if i can safely run that much with a carb on the street. At least Ive been told that I cant and have reliability.
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From: Adams NY
I got ya sir, I can run the compression up a little more than the 190 CCP that I have now. (btw this was the max i was advised to go on a carb due to the inconsistent AFR that a carb delivers) I only have access to 91 octane up here without dealing with the E15 fuels. But then again as long as i jet it correctly, the E15 should help with the pinging. I know it did in a jeep engine that I built. Spark knock like a **** with the 91, Ran like a scalded dawg on the 89 E10/E15.
Anyway. Thank you for opening up my eye to how much compression I can run with the carb. Out of curiosity, did you have compression releases in that 107 or the 98 that I spoke of?
Anyway. Thank you for opening up my eye to how much compression I can run with the carb. Out of curiosity, did you have compression releases in that 107 or the 98 that I spoke of?
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From: Poolville
Any time you go over 10:1 you should use compression releases because when the lifters bleed down it actually changes your intake close time which will actually produce more initial compression than the dynamic running compression..
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From: Adams NY
Good point to consider. If I do bump the compression Ill need a set of the installed. thank you for the input good sir.
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Joined: Mar 2010
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From: Poolville
Curious, that 91 octane fuel that you say you can get is that ethanol fuel or non-ethanol fuel? Because if it is non-ethanol 91 it actually performs very well in these air-cooled motors and should have no problem maintaining detonation providing you're not running lean or too much timing. On the other hand if it is 91 with at least 10% ethanol in it then you're going to have to richen up your mixture a little bit more because the ethanol fuels do require more fuel for the same air fuel ratio.. I currently use a Wego III wide band to monitor my air fuel ratios constantly to make sure I don't have detonation issues because my 96-in Evo motor is very well built as well..
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Joined: Jun 2006
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From: san antonio
Last edited by djl; Jun 12, 2020 at 07:30 PM.