Brian you need to hook up with Dale. I think he can flow them for ya.

 

Brian you need to hook up with Dale. I think he can flow them for ya.

Yeah he can, but I am trying to figure out if it is worth it to have the intake ports polished.

 

Flow them now then have them polished and flowed. If flow is decreased with the polishing have them media blasted back rough cast.

 

Flow them now then have them polished and flowed. If flow is decreased with the polishing have them media blasted back rough cast.

oh

 

No, don't waste money having the intakes polished just to have to have them sanded back rough again to improve your fuel atomization...

 

opcorn

 

Flow bench Brian. Whats Dale say?

 

Yeah he can, but I am trying to figure out if it is worth it to have the intake ports polished.

If you want to see if polishing makes any difference you can do an A-B ( before and after) test on one of your stock heads without experimenting on your good ones. You always practice and experiment on a head you don't care about.

 

If you want to see if polishing makes any difference you can do an A-B ( before and after) test on one of your stock heads without experimenting on your good ones. You always practice and experiment on a head you don't care about.

Im with Dale on this, me and him were talking about flowing heads just yesterday.

 

you are lucky our new moderator didn't switch this topic over to the mens lounge

 

you are lucky our new moderator didn't switch this topic over to the mens lounge

Yeah,his wife's been gone for 8 months, you don't want to be bending over much around him right now.

 

Yeah,his wife's been gone for 8 months, you don't want to be bending over much around him right now.

:rofl: That's funny (sorry Lonnie) :rofl:

 

All this talk about head polishing is probably driving Lonnie crazy.

 

I guess if the point of the exercise is to make flow bench numbers, go ahead. I think most of us would rather have better time slips or dyno numbers than flow bench numbers. This has been done so many times I wonder why it just comes back over and over.:soapbox:

 

I guess if the point of the exercise is to make flow bench numbers, go ahead. I think most of us would rather have better time slips or dyno numbers than flow bench numbers. This has been done so many times I wonder why it just comes back over and over.:soapbox:

If you have a problem with the thread dont read it. Or respond. What do you have to bring to the thread anyway. Time for you to step down.:soapbox:

 

If you have a problem with the thread dont read it. Or respond. What do you have to bring to the thread anyway. Time for you to step down.:soapbox:

Just adding my stupid uninformed opinion like you.:stilpoke:

 

.480/,465 cams... I thought they were .480in/.450ex. What valves and springs are you running?

 

If you have a problem with the thread dont read it. Or respond. What do you have to bring to the thread anyway. Time for you to step down.:soapbox:

I don't have any problem with the thread. What I have to bring to the thread is what I wrote, do you have a problem with it? You don't think there is any value or truth in it? If you are threatened by what I said, perhaps you should look to what issue you have with it because there is nothing wrong with what I wrote.
So is this where you are in charge of checking credentials to post in threads again?
Time for you to take a prozac and ignore what I wrote or respond on the substance of it. :kiss:

 

.480/,465 cams... I thought they were .480in/.450ex. What valves and springs are you running?

Stock springs are good up to 500 width. Ill be using stock and every 1350 that roles out of Eagle has stock springs also.

 

I don't have any problem with the thread. What I have to bring to the thread is what I wrote, do you have a problem with it? You don't think there is any value or truth in it? If you are threatened by what I said, perhaps you should look to what issue you have with it because there is nothing wrong with what I wrote.
So is this where you are in charge of checking credentials to post in threads again?
Time for you to take a prozac and ignore what I wrote or respond on the substance of it. :kiss:

Smoken and Hawgstang please take a chill, we are having a good conversation about flowing some heads.

 

Ok, I am in the middle of my 1350BB build. I have got megacycle 480/465 cams, and a falicon 1/4 stroke crank. I also bought a 1250 kit on ebay. I powder coated the SE heads black and put in over sized valves on the intake and exhaust and had the seats ground. I did not have any other work done the the heads. I have been told by several people that you can not port and polish the CNC SE heads any more because there isn't any room to to take anymore meat out. But, I was told that you can hand polish the exhaust ports and make the heads flow alittle better. My question is has anyone had any experience with this? Enough to say one way or another weather it would be worth getting done? And, if it was worth it can anyone recommend a good place to do it? I live in Va.

Thanks for the assistance
Brian

My question is has anyone had any experience with this?
Brian, many people have had relevant experience with head port issues. I have read and discussed and watched heads being flowed, polished, and ported. I don't do that kind of work, I pay professionals to do that. I buy expertise, like many people do.
I think one of the things you are leaving out is what is the intended use of these heads, this engine, this bike? I would say that the purpose is the most important question you can ask because the value judgements you make after that are guided by it. If you have unlimited money and multiple vehicles that can be specialized to a purpose, you are looking at compromises.
I think you would be better served for your time and money if you asked a experienced professional face to face than throwing the questions out to a forum with many points of view. Look at the R build, he is using Destroyer heads, before you waste time hand porting SE heads, talk to him. I just don't think the money insvested in SE heads is such a good idea. If so the racers would be using them and modifying them. They are a cheap good investment but they are about done unless you are racing in a class that restricts equipment. For the street I doubt you will see much benefit in polishing heads. The balance of equipment's capabilities is a better investment of time and money.

 

Smoken and Hawgstang please take a chill, we are having a good conversation about flowing some heads.

I was, till somebody had to go off about something that wasn't even a consideration. Flow benchs are to measure the flow. You cant do anything to heads without flow data. Dyno numbers, time runs etc. have zero effect if your heads choke off the flow.

 

Stock springs are good up to 500 width. Ill be using stock and every 1350 that roles out of Eagle has stock springs also.

Ya I know. I think I'm going with different springs anyway. I've been checking all the clearances and I don't like what I'm seeing. I'm sure Eagle knows a hell of a lot more than I do:notworth: but the numbers don't lie. Stock SE heads (at least the ones I have) are a little too tight for my comfort. I'll spend the extra $ for the peice of mind. It can't hurt. Just my :2cents:

 

Quote:
Originally Posted by smoothrod
Stock springs are good up to 500 width. Ill be using stock and every 1350 that roles out of Eagle has stock springs also

Ya I know. I think I'm going with different springs anyway. I've been checking all the clearances and I don't like what I'm seeing. I'm sure Eagle knows a hell of a lot more than I do:notworth: but the numbers don't lie. Stock SE heads (at least the ones I have) are a little too tight for my comfort. I'll spend the extra $ for the piece of mind. It can't hurt. Just my :2cents:

Yeah, I agree that #'s don't lie, and Maybe they don't "all" come from Eagle with stock springs. I thought about it and I just don't know about that statement. Plus, just cause Harley "says" they are good up to "500" I don't know about that either. I mean my bike was supposed to have 120hp stock and it didn't and that comes form Harley. Plus, when I talked to tech support I was told "that a 58mm throttle body would not work on a stock set of heads and a stock engine." By Harley's performance tech. support in a conference call one afternoon last year. I was told that I had to have Destroyer head, cams, and injectors to make it work. And as we have all seen including yourself Lonnie, that is not the case. You and many other have a 58mm T/B on a stock 1130cc motor with stock heads, cams, and injectors. So I think that springs, retainers, and titanium valves might be the way to go.

Plus, if you ask Harley, I bet they would tell you that Buell wheels wouldn't go on a V-Rod. Especially a year and a half ago.

 

Ya I know. I think I'm going with different springs anyway.

I'm a fan of more than enough when it comes to valve springs. I've seen too many bad things happen with marginal springs.