Race engine vs Street engine with same combo

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Re: Race engine vs Street engine with same combo

Post by SpeierRacingHeads »

AS-CAST Profiler 195cc w/2.05

2.70 in throat
2.75 in apex
2.23 in pinch
2.90 in entry
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Re: Race engine vs Street engine with same combo

Post by Elroy »

Not sure im following your last posts/how does something average 2.3 when it has a 2.78 area and a 2.9 area and 2.3 is the min or choke was the observation/ something doesnt add up in that regard./why i stated 205 starting or milled flange
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Re: Race engine vs Street engine with same combo

Post by Elroy »

I am also interested in chamber final cc
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Re: Race engine vs Street engine with same combo

Post by RevTheory »

I bet the vein is good for ~5cc based on one I added to the backside of the guide boss on a Vortec.
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Re: Race engine vs Street engine with same combo

Post by SpeierRacingHeads »

Elroy wrote: Sun Nov 24, 2019 12:40 pm I am also interested in chamber final cc
I angle milled it 0-.100 and with the deep dish LS valves the chamber was 63cc
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Re: Race engine vs Street engine with same combo

Post by SpeierRacingHeads »

RevTheory wrote: Sun Nov 24, 2019 12:42 pm I bet the vein is good for ~5cc based on one I added to the backside of the guide boss on a Vortec.
The vein is 2" long and .500 at it's peak on the apex. It's around 8cc.
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Re: Race engine vs Street engine with same combo

Post by SpeierRacingHeads »

Elroy wrote: Sun Nov 24, 2019 1:04 pm
RevTheory wrote: Sun Nov 24, 2019 12:42 pm I bet the vein is good for ~5cc based on one I added to the backside of the guide boss on a Vortec.
2.3 is the stated minimum/ is it 1.6csa where the wing is?/ it takes something like that to get 205 over that length./But it cant be smaller than 2.3 there or the listing for minimus is wrong/ maybe some typos are taking place/ f4om what has been said this port would pour much more than 205/ im sure speierracing will clear it up most likely he is installing engine this weekend
The wing isn't into the MIN area.
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Re: Race engine vs Street engine with same combo

Post by Elroy »

The cc of the wing is irrelevant/you have to have a good amount of area much smaller than 2.3 or its not 205//or 2.3 average/ think about it/ the average of 5,6,and 4 cant be 3./205 starting or milled flange maybe/ in the end dont matter that its much bigger/just observing trends/
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Re: Race engine vs Street engine with same combo

Post by SpeierRacingHeads »

Elroy wrote: Sun Nov 24, 2019 1:30 pm The cc of the wing is irrelevant/you have to have a good amount of area much smaller than 2.3 or its not 205//or 2.3 average/ think about it/ the average of 5,6,and 4 cant be 3./205 starting or milled flange maybe/ in the end dont matter that its much bigger/just observing trends/
How about I send you one, you cc it, and then understand how it's possible.
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Re: Race engine vs Street engine with same combo

Post by SpeierRacingHeads »

How can the 195cc head have a 2.20 pinch and be 195cc then?

I listed the areas.
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Re: Race engine vs Street engine with same combo

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Re: Race engine vs Street engine with same combo

Post by Elroy »

SpeierRacingHeads wrote: Sun Nov 24, 2019 1:37 pm How can the 195cc head have a 2.20 pinch and be 195cc then?

I listed the areas.
Wouldnt even try to speculate/ i would want my own measurements/thats not always cut and dry between people/ but 2.2 mi imus 195 cc from those numvers alone would suggest less major csa variations than your ports stated dimensions/ your port can be whatever you want it to be/being bigger than 205 is not a criticism so dont take it that way/only an observatiom that seem obvious by your specs/ i can be wrong if you prefer that
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Re: Race engine vs Street engine with same combo

Post by SpeierRacingHeads »

Image

Image

Image

Image
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Re: Race engine vs Street engine with same combo

Post by Elroy »

SpeierRacingHeads wrote: Sun Nov 24, 2019 1:54 pm Can you see anything by that? I would gladly post it up.
I can tell that red and black look good together from that :D
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Re: Race engine vs Street engine with same combo

Post by RevTheory »

You really pushed it out there with a 91.5% throat and 45* seats. You must have a ton of R&D to justify that move.
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