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Re: Driving impressions with the AFR heads

Subject: Re: Driving impressions with the AFR heads
by TonyMamo on 2009/8/18 18:37:12

Quote:

anesthes wrote:

So yeah, I guess, I am saying for the money I'd expect the AFR heads to put down 8-10mph increase over a crap head like a sportsman. Which is why I asked if the 119-120mph Josh had was with a fully ported and modified TFS head, or as sold from summit.

-- Joe

First of all your comparing two different cars....Josh doesn't run a Sportsman head....he has baselined and documented this test extensively (if you care to read thru it) with a different head entirely. I suggest you take the time to go over the pertinent information.

And the fact you would expect ANY head to give you the increase you are suggesting (8-10 MPH trap speeds) after having the chance to read what that would actually entail tells me you don't really spend much time at the track or building/dyno testing engines to truly appreciate the huge gains you are carelessly throwing around.

If Josh does pick up 2-3 MPH in trap speed that IS a significant gain and once you've been to the track a few times and have changed combinations and spent money to increase your performance, you will have a better appreciation of whats really needed to accomplish this.

I dont want to argue with you Joe but Im confident others on this board that have more track experience will back me in what I am saying....picking up just a few MPH in your trap speeds is easily noticeable in the SOTP and requires a good deal of HP to accomplish that. An 8-10 MPH increase in trap speeds isn't in the realm of any headswap....period.

-Tony
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