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Re: once again

Subject: Re: once again
by jsup on 2008/11/5 20:29:56

Quote:

cuisinartvette wrote:
the tight lobe center is to help pick up a lazy port is what he is saying. After a certain point the bigger the runner size the slower the intake charge hence a tighter lsa.
Back in the days of iron heads using a 104-108 lsa was common, it "helped" draw the air in. With whats out there today you can get away with something bigger as the port itself does more work if done correctly.


Actually, from what I have been able to find, there are real race cars running very expensive heads, I'm talking $5-10K heads that like 107,108 LSA. Today. From what I understand, it is done to keep making power from 3500 and up.

With such high quality, expensive parts, and the goal being to win races, I can't see how that can be attributed to a "sub standard" or "lazy" port. It's a matter of what the operational environment the motor is designed for and what the driver wants.

I can seen in a 1/4 mile/street situation that you would want power at 3000, 3500 since the motor spends more time OVER 3500 than below it in that example.

So it would appear to me that there is nothing wrong per se with a 107, 108 if your goal is to go really fast...either on the track, or in the 1/4 mile. If your goal is to have that infamous "seat of pants" in which case I'd say buy an L98, after all it pulls better seat of pants than an LT1/4.

Pr0zac's goal is simply to go faster than anyone else in the 1/4 mile, and given that he will spend more time at 3500 than at 2000, it makes perfect sense to go with that separation, and by no means is a reflection on "lazy ports"...or sub standard heads, despite what some marketing group somewhere may say.

That's what I have found out in my research...
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