atljar

If you had a set of heads hand ported by a shop, and were told that a flowsheet would be included.... (see poll choices)

1racerdude

I would expect the numbers on the paper to be what my heads actually flowed.
With my guy that's the way he has always done it and a explanation as to how and if clay or a pipe was used the weather conditions,ect,ect. It's an automatic print out on his superflow.

Rashiki

I would want to see numbers for that particular head, each can be different and it's important to know.

atljar

Looking for some more replies

FastZinTennessee

I would expect a flow sheet for my particular heads.

96ta(nick)

After paying to get them ported i would demand a flow sheet.

atljar

You are getting a flowsheet, however it is from another head. They port your head to match the originally tested head.

96ta(nick)

Umm I would want a sheet from MY heads due to the fact that the flow numbers could vary from head to head.

SStrokerAce

Jared.... I don't want to know...

Flow sheets are of the head you are getting and it's better to know the port that the numbers are coming from as well. BS flow numbers ain't worth dick when you try to make a cam for them.

Bret

97s10ondubs

Does lloyd send you flow sheets when you make the cam, i never got a flow sheet from him, just an email with numbers.

rskrause

I voted with everyone else. But I can think of an exception: the heads were CNC ported with the same program as the heads that the flow sheet was provided for. That still isn't the same though, I will admit.

Rich

96vortechSS

I also voted the same as everyone else. There are too many choices in head porters with products that are proven to make power. You shouldn't deal with someone that runs their business that way. If you haven't picked up your heads yet maybe you could try telling the porter to get you another set of stock untouched castings. Tell him he shouldn't worry, it his heads flow that good he'll be able to sell them to someone else.


Justin

SStrokerAce

Lloyd and I have talked about this actually..... good point.

Like Rich said a CNC port is pretty similar back to back to back....

Someone who does the same castings, time and time and time again will have results that are very close as well. The standard heads that Lloyd does a lot like a LE1, LE2, LE3 we see the same results on the flow numbers within +/- 2cfm which can be caused buy about anything. When he finds something new that is getting him numbers that are different than normal we will throw that into the mix and see if a different cam can change things. There has been some good developments in the intake and exhaust ports that have caused us to change the cams some which is a good thing because things are getting better.

When it's something different like a LT4, AFR, TFS casting we will work off the flow numbers for that setup and cut a cam to match that AND the car. It takes a little more time but it works out best that way.

Bret