Fully ported intake

General engine tech -- Drag Racing to Circle Track

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redliner
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Re: Fully ported intake

Post by redliner » Thu Oct 11, 2018 8:23 pm

cjperformance wrote:
Thu Oct 11, 2018 8:11 pm
* = S p i e r id think
YEp but they wont post it typed regular with no spaces

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Re: Fully ported intake

Post by Frankshaft » Thu Oct 11, 2018 8:56 pm

Depends which manifold. You could do a fully ported Victor Jr. and it would make less power than an otb Super Victor 2. A dominator on a good manifold will be up compared to a unported and 850 combo, but again, depends which manifold.

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Re: Fully ported intake

Post by MadBill » Thu Oct 11, 2018 9:25 pm

redliner wrote:
Thu Oct 11, 2018 8:23 pm
cjperformance wrote:
Thu Oct 11, 2018 8:11 pm
* = S p i e r id think
YEp but they wont post it typed regular with no spaces
OK, got it: One of the "Disappeared."
Felix, qui potuit rerum cognscere causas.

Happy is he who can discover the cause of things.

GARY C
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Re: Fully ported intake

Post by GARY C » Thu Oct 11, 2018 10:00 pm

cjperformance wrote:
Thu Oct 11, 2018 8:13 pm
cjperformance wrote:
Thu Oct 11, 2018 8:11 pm
* = S p i e r id think
Because if you type it without spaces you just get an *

Eg *
Wow I didn't know that...
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rustbucket79
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Re: Fully ported intake

Post by rustbucket79 » Thu Oct 11, 2018 10:27 pm

If your short times are less than stellar a large carb and intake could make it worse. You could have better results working on your clutch.

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Re: Fully ported intake

Post by WeingartnerRacing » Thu Oct 11, 2018 11:49 pm

redliner wrote:
Thu Oct 11, 2018 8:22 pm
WeingartnerRacing wrote:
Thu Oct 11, 2018 7:18 pm
Fully ported will be 20-30hp better.
Even at my rpm range? or is it a higher rpm thing?
Yes many stock intakes leave a lot on the table. If you were below 5500rpm it would gain next to nothing.
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www.wengines.com

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Re: Fully ported intake

Post by rewguy » Fri Oct 12, 2018 12:28 am

More hp technically should always win if gear and converter are optimized for it. But if they are NOT optimized...... then overall average power would likely win.

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Re: Fully ported intake

Post by mag2555 » Fri Oct 12, 2018 12:22 pm

Fully ported by a average guy at home and the same done by a shop that does such as a specialties will show a 10 hp spread!

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Re: Fully ported intake

Post by CGT » Fri Oct 12, 2018 12:54 pm

redliner wrote:
Thu Oct 11, 2018 1:34 pm
(3100 lb drag car)Would a 414 sbc with 11.5-1 compression and a cam that is done at 7000 heads that are 2.5 @ pinch be quicker with a fully ported and modified plenum manifold and a Dominator or an as cast manifold and a 850 carb? Just looking for thoughts...
Whats the car run now?

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Re: Fully ported intake

Post by Joe-71 » Fri Oct 12, 2018 1:06 pm

What is your vacuum reading at the end of the quarter? During the run? If you are above 1.0" of vacuum, you may benefit from the Dominator. I have found that a well prepared plenum will increase the airflow by 30 cfm in many intakes, without touching the runners' exits. Need to prepare the air and fuel to turn into the runners, and do so without slowing it down or turbulence.

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Re: Fully ported intake

Post by redliner » Fri Oct 12, 2018 1:10 pm

CGT wrote:
Fri Oct 12, 2018 12:54 pm
redliner wrote:
Thu Oct 11, 2018 1:34 pm
(3100 lb drag car)Would a 414 sbc with 11.5-1 compression and a cam that is done at 7000 heads that are 2.5 @ pinch be quicker with a fully ported and modified plenum manifold and a Dominator or an as cast manifold and a 850 carb? Just looking for thoughts...
Whats the car run now?
Best so far is 1.447, 4.150,6.448,106.44 8.446,10.148,131.69 in the Midwest, Cordova Dragway, 3100 lbs, Liberty TKO 600

redliner
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Re: Fully ported intake

Post by redliner » Fri Oct 12, 2018 1:12 pm

Joe-71 wrote:
Fri Oct 12, 2018 1:06 pm
What is your vacuum reading at the end of the quarter? During the run? If you are above 1.0" of vacuum, you may benefit from the Dominator. I have found that a well prepared plenum will increase the airflow by 30 cfm in many intakes, without touching the runners' exits. Need to prepare the air and fuel to turn into the runners, and do so without slowing it down or turbulence.
I do nt know vac. readings but am running a Mark Whitener 1050 Dominator on S p e i e r modified Motown intake.

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Re: Fully ported intake

Post by Frankshaft » Fri Oct 12, 2018 2:20 pm

redliner wrote:
Fri Oct 12, 2018 1:10 pm
CGT wrote:
Fri Oct 12, 2018 12:54 pm
redliner wrote:
Thu Oct 11, 2018 1:34 pm
(3100 lb drag car)Would a 414 sbc with 11.5-1 compression and a cam that is done at 7000 heads that are 2.5 @ pinch be quicker with a fully ported and modified plenum manifold and a Dominator or an as cast manifold and a 850 carb? Just looking for thoughts...
Whats the car run now?
Best so far is 1.447, 4.150,6.448,106.44 8.446,10.148,131.69 in the Midwest, Cordova Dragway, 3100 lbs, Liberty TKO 600
I will be at Cordova this weekend. Hopefully they prep the track well.

redliner
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Re: Fully ported intake

Post by redliner » Fri Oct 12, 2018 2:28 pm

Frankshaft wrote:
Fri Oct 12, 2018 2:20 pm
redliner wrote:
Fri Oct 12, 2018 1:10 pm
CGT wrote:
Fri Oct 12, 2018 12:54 pm


Whats the car run now?
Best so far is 1.447, 4.150,6.448,106.44 8.446,10.148,131.69 in the Midwest, Cordova Dragway, 3100 lbs, Liberty TKO 600
I will be at Cordova this weekend. Hopefully they prep the track well.
I am out for the year having busted my trans AGAIN! What car do ya Run Frank? I might come down. I live 14 miles north of the track

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Re: Fully ported intake

Post by MTENGINES » Fri Oct 12, 2018 2:29 pm

Frankshaft wrote:
Fri Oct 12, 2018 2:20 pm
redliner wrote:
Fri Oct 12, 2018 1:10 pm
CGT wrote:
Fri Oct 12, 2018 12:54 pm


Whats the car run now?
Best so far is 1.447, 4.150,6.448,106.44 8.446,10.148,131.69 in the Midwest, Cordova Dragway, 3100 lbs, Liberty TKO 600
I will be at Cordova this weekend. Hopefully they prep the track well.
Me too :wink:

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