Stereophile33
New member
- Joined
- Nov 13, 2003
- Location
- Portland, OR
your 398 is the same as a 530. You should be fine.
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port size.
So where do the differences in short side radius figure into this? Or do they?
So do we have flow numbers to support this claim?
I would like to see the differences worked out with real numbers and data, so far I am only seeing words.
So do we have flow numbers to support this claim?
I would like to see the differences worked out with real numbers and data, so far I am only seeing words.
Was going to pick up a used KG2T to try out. Also looking at the RSI stg 3 and probably would replace the valve springs at the same time.
Thoughts? Goal is still broad power and quick response. I'll probably change the intake first and go back on the dyno.
i was told the tb was the biggest problem with stock manifolds
Jonathan and Kenny-
I understand how these things all work together, was looking for more specific flow data, cfm & velocity @ specific valve lift to compare. I also know how to properly compare the stats from one head to another for proper application. I didn't just crawl out from under some troll rock and into this thread, I have a few different heads to choose from and I would like to properly be able to compare them to fit the best to my application.
Not looking at numbers blindly, you have to test at various lift with heads that are what will actually be used in the application (valve size, porting the same) to get a picture of what is happening. There's enough to this that I don't feel the need to get into a long, drawn out discussion, I can look at flowbench data with a 530 and 531 at various valve lift and see what it's doing, I have looked at enough of them by now.
If you can find the data I would like to see it. If it's incomplete, what will it take to get a bench test on a stock 530, ported 530, 531 and ported 531 to get some real data? The manifolds will make a difference, but not all of us have that option. I have to keep my car looking stock under the hood for smog and I don't plan on swapping parts every time smog testing is due.