High CFM heads - What would you chose?
I think I made that mention but it’s good to say it out loud again, yes, this I know and have previously said here (*I Think*) and in other threads, that I didn’t want to make an issue of it because comparing flow bench’s is a bad thing.
What we have here are;
2 different operator’s
2 different flow benches
Tested in 2 different states on 2 different days @ 2 different altitudes with 2 different bore size fixtures.
4.125 vs 4.03
I am certainly not trashing anyone. That’s not my thing.
The work done on the heads are really quite pretty and done by Brett who has a very good rep with porting in various fronts well proven.
On the headland work?
There is no complaint by me! None at all!
Being used to my guys bench is about all I’m used to. Having the numbers from his bench on my bore size helps me, my head, for direction on the build on what little twist I may want to do. That’s it. Nothing more.
When my guy, (Keith is his name,) looked and flowed the head he stated that he really liked the job. Thought very highly of the work and what he found on his flow bench. Even said to extend his feelings on it to Brett if I spoke with him again. And I did. Brett was Appreciate of and gracious about the matter. Very first class.
Keith is most eager & excited for me to get back with my W5 program and looks forward to seeing results. He said I would surely make some good power with them and not to be worried about my dashed hopes for more flow, that it would be really good and make some serious power. And I believe him!
Thanks for the words and the warning mention of flow benches comparing. I am appreciate of of it. This was more to show what I said above. The Who, what, where, when, etc... can have a large effect. And I think this needs to be mentioned more for new guys that are up-and-coming. Flow numbers are great, but they’re not everything. Oh wait, did I just steal yellow roses line?
LMAO!!!!
Rob, I think this is one of those situations where you’re “racing flow benches”.
I find it hard to imagine if I flowed that Brett Miller ported W5 on my bench it wouldn’t break 300cfm.
I have a customer down in your area that had some Indy 440-1 heads he had ported himself flowed by a shop down there somewhere.
They were like 312cfm.
I told him that it was pretty unlikely they flowed that little.
I mean, a 5 min blend and a valve job and they’re in the 325-330+ range.
Some benches are just low...... and some are just high.
I think the numbers you have there are just low.
As it is with the dyno, the best use is to do before and after testing....... and not get caught up in comparing results from other dynos/benches.
