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Old 11-05-2013, 06:04 PM   #101
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You bring shame to your family.
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Old 11-05-2013, 06:08 PM   #102
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Emilio, can you expound on the effects a ported cylinder head will have on gas mileage? I am more than willing to spend $8,000 on a built N/A longblock but I am not willing to sacrifice the fuel economy that I enjoy so much today. I appreciate that you are working hard to improve the power of the engine, but I think there is a significant market for a set of camshafts that also retains OEM-like fuel economy.

Furthermore,
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Old 11-05-2013, 06:14 PM   #103
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Emilio, can you expound on the effects a ported cylinder head will have on gas mileage? I am more than willing to spend $8,000 on a built N/A longblock but I am not willing to sacrifice the fuel economy that I enjoy so much today. I appreciate that you are working hard to improve the power of the engine, but I think there is a significant market for a set of camshafts that also retains OEM-like fuel economy.

Furthermore,
What? Nobody cares about gas milage. How will this affect my throttle response?
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Old 11-05-2013, 06:17 PM   #104
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This reminds me of the time our intern left his Facebook logged in on his computer and left for lunch.
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Old 11-05-2013, 06:50 PM   #105
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Originally Posted by Savington View Post
Emilio, can you expound on the effects a ported cylinder head will have on gas mileage? I am more than willing to spend $8,000 on a built N/A longblock but I am not willing to sacrifice the fuel economy that I enjoy so much today. I appreciate that you are working hard to improve the power of the engine, but I think there is a significant market for a set of camshafts that also retains OEM-like fuel economy.

Furthermore,
Well,

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Pretty basic really.
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Old 11-05-2013, 07:10 PM   #106
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You magnificent bastard, my Logitech K350 may not recover this time
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Old 11-05-2013, 08:00 PM   #107
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Head is available now. Contact me directly for prices and options.
E-mail sent last night
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Old 11-05-2013, 08:29 PM   #108
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Emilio, how much material - as in grams of aluminum shavings - is removed from the head during the porting process?

I was told 650 grams of aluminum was removed from my 1.8 head. (Or, it could have been the head, intake mani, and the TB, I do not remember exactly)
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Old 11-05-2013, 09:00 PM   #109
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...

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Old 11-05-2013, 10:48 PM   #110
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Originally Posted by Savington View Post
Emilio, can you expound on the effects a ported cylinder head will have on gas mileage? I am more than willing to spend $8,000 on a built N/A longblock but I am not willing to sacrifice the fuel economy that I enjoy so much today. I appreciate that you are working hard to improve the power of the engine, but I think there is a significant market for a set of camshafts that also retains OEM-like fuel economy.

Furthermore,
Now you sound like me!
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Old 11-06-2013, 12:11 AM   #111
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What? Nobody cares about gas milage. How will this affect my throttle response?
I put a ground strap on the throttle body. It's way better now.
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Old 11-06-2013, 10:00 AM   #112
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Originally Posted by Godless Commie View Post
Emilio, how much material - as in grams of aluminum shavings - is removed from the head during the porting process?

I was told 650 grams of aluminum was removed from my 1.8 head. (Or, it could have been the head, intake mani, and the TB, I do not remember exactly)
Yes, that weight reduction over the nose of the car is important.
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Old 11-06-2013, 11:11 AM   #113
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I put a ground strap on the throttle body. It's way better now.

Bro...can you come to my house and do that to my car? I sux with electronics and throttle response is very important for heel-tow downshifting on the track.
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Old 11-06-2013, 11:51 AM   #114
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Don't bro me, bro. Do you think I'm going to give away my super secret race winning (read: HPDE 1) tech?
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Old 11-06-2013, 12:51 PM   #115
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I heard that if you put a ground strap THROUGH the throttle body, it adds 25 horsepower at idle...
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Old 11-06-2013, 01:38 PM   #116
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Don't bro me, bro. Do you think I'm going to give away my super secret race winning (read: HPDE 1) tech?
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Old 11-06-2013, 01:49 PM   #117
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This thread needs some moderation up in herr
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Old 11-06-2013, 02:48 PM   #118
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And then everybody died from carbon monoxide poisoning.
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Old 11-06-2013, 03:35 PM   #119
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Emilio can you comment on reliability compared to a stock head. My thoughts are that it's comparable. Meaning for a guy that street drives/ occasionally tracks this offers an exceptional value for bolt on whp.
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Old 11-07-2013, 01:55 PM   #120
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Emilio can you comment on reliability compared to a stock head. My thoughts are that it's comparable. Meaning for a guy that street drives/ occasionally tracks this offers an exceptional value for bolt on whp.
Dunno really. We haven't looked at specific A/B between a built head and a stock one. Higher shift points increase wear regardless of how the head is built. Generally, we never wear out the race heads. We either break something elsewhere, or make a classification/spec change so the head comes out still healthy.

Overall, the increase in wear from higher shift points, not from how the head is built. That said, a stock head can't tolerate money shifts without bending all the intake valves. We also see a lot of seat wear on OEM heads that are being shifted at 7200-7400. The race heads with better valves and stiffer valve springs don't seem to have any wear at those ranges. The heads we've built that have dozens of hours above 8000rpm still look good. A stock head shifted at 8000rpm + would have a life span measured in minutes.
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