Weinand Intake?????
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Staging Lane
Joined: Aug 2002
Posts: 92
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From: Connecticut
Weinand Intake????? How good is this intake for porting and polishing and also is it a good idea to add with my blower---V9 G trim.. If yea whos got the best prices on this,, i really like the possibilites with it... help me fellas,,, <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Re: Weinand Intake????? Its perfect for supercharged motors. As far as porting goes, its the intake to get. If your not going to port your heads, I think its still worth getting. Some think its just a heat blanket, and thats a vaid opion. I like my weinand intake, and there about $520 no matter where you look. There very easy to put on yourself too. Hope that helps... <img border="0" alt="[Driving]" title="" src="graemlins/gr_driving3.gif" />
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From: Albuquerque NM - The Land of 8000ft DA
Re: Weinand Intake????? I am curious about that mainfold.
See if its aluminum then it can be shaped.
Everybody seems to agree that the intake manifold is the bottleneck of the whole system. The Heads that are being put out right now can support some major power/torque but the full potential is never realized because of the manifold.
Has anybody tried this manifold and extrude honed to to see what kind of result they would get? I know that process is not cheap but neither are parts for these cars.
Whats does the intake & head flow when bolted together.
Maybe Ed Potter can chime in.
See if its aluminum then it can be shaped.
Everybody seems to agree that the intake manifold is the bottleneck of the whole system. The Heads that are being put out right now can support some major power/torque but the full potential is never realized because of the manifold.
Has anybody tried this manifold and extrude honed to to see what kind of result they would get? I know that process is not cheap but neither are parts for these cars.
Whats does the intake & head flow when bolted together.
Maybe Ed Potter can chime in.
Re: Weinand Intake????? I spoke to a head porter in the Chicago area who did some real world testing on ported LS6 heads.
He put the head on the flow bench SF-600 and then put the head on with the stock LS1 intake. He was losing an average of 15CFM across the different lifts. Then he used the stock Holley aluminum intake and gained back an average of 6CFM. Then he ported the intake (he said it took a HUGE amount of time by the way) and the restriction was gone completely. The setup flowed what the heads flowed. No loss.
So....for those folks looking for every little bit this seems to be a good investement.
He put the head on the flow bench SF-600 and then put the head on with the stock LS1 intake. He was losing an average of 15CFM across the different lifts. Then he used the stock Holley aluminum intake and gained back an average of 6CFM. Then he ported the intake (he said it took a HUGE amount of time by the way) and the restriction was gone completely. The setup flowed what the heads flowed. No loss.
So....for those folks looking for every little bit this seems to be a good investement.
Re: Weinand Intake????? Although we have never done a back to back comparison on the flowbench, I would have to believe the results from chasgiv3.
We tested these manifold on a top end Corvette on the chasiss dyno, and found that out of the box, it's not as good as an LS6, but after a portmatch, and some work on the radius port entry, it made about 10hp over the LS6.
On a force induction engine, it should really open up the aair intake tract, but it will require some portwork. I would guess 8-10 hours of porting to get it there.
Ed
We tested these manifold on a top end Corvette on the chasiss dyno, and found that out of the box, it's not as good as an LS6, but after a portmatch, and some work on the radius port entry, it made about 10hp over the LS6.
On a force induction engine, it should really open up the aair intake tract, but it will require some portwork. I would guess 8-10 hours of porting to get it there.
Ed
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From: Albuquerque NM - The Land of 8000ft DA
Re: Weinand Intake????? Thanks for chiming in Ed and being honest about its performance.
Have you guys tried to extrude hone, or know anybody that has, the manifold after a port match?
I know the ford guys do with their manifolds on the older 5.0's to try and get the most out of it and it does provide a significant improvement in air flow. The whole point would be to keep that velocity of the air high w/o "hogging" out he intake trac.
I would figure it would improve the overall performance of it on an N/A application over the LS6 intake.
Ed can you dispell or confirm some of these "hotsoak" rumors? Its common sense that being aluminum it would absorb more heat than a composite. But does it actually heat up to the point that it affects drivability?
I have read a few posts on this subject. A few claim its detrimental to performance and others couldn't detect a difference in drivability. My guess is the cars were just not tuned right and it was used as a scapegoat.
Have you guys tried to extrude hone, or know anybody that has, the manifold after a port match?
I know the ford guys do with their manifolds on the older 5.0's to try and get the most out of it and it does provide a significant improvement in air flow. The whole point would be to keep that velocity of the air high w/o "hogging" out he intake trac.
I would figure it would improve the overall performance of it on an N/A application over the LS6 intake.
Ed can you dispell or confirm some of these "hotsoak" rumors? Its common sense that being aluminum it would absorb more heat than a composite. But does it actually heat up to the point that it affects drivability?
I have read a few posts on this subject. A few claim its detrimental to performance and others couldn't detect a difference in drivability. My guess is the cars were just not tuned right and it was used as a scapegoat.
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From: new england
Re: Weinand Intake????? </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by chasgiv3:
<strong>I spoke to a head porter in the Chicago area who did some real world testing on ported LS6 heads.
He put the head on the flow bench SF-600 and then put the head on with the stock LS1 intake. He was losing an average of 15CFM across the different lifts. Then he used the stock Holley aluminum intake and gained back an average of 6CFM. Then he ported the intake (he said it took a HUGE amount of time by the way) and the restriction was gone completely. The setup flowed what the heads flowed. No loss.
So....for those folks looking for every little bit this seems to be a good investement.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I have found LS1 intakes cost ported heads as much as 50 cfm loss! LS6 gets some of that "ported head flow" back but if your info is correct than aluminum intake may be worth the hassle and extra weight. My unproven or tested opinion was that LS1 style intakes hurt head flow because of air having to change directions to get into manifold runner openings. Whenever you bend airflow enough there is flow loss. If Weiand allows for subtle direction changes from plenum to port than maybe there ios something to it.
<strong>I spoke to a head porter in the Chicago area who did some real world testing on ported LS6 heads.
He put the head on the flow bench SF-600 and then put the head on with the stock LS1 intake. He was losing an average of 15CFM across the different lifts. Then he used the stock Holley aluminum intake and gained back an average of 6CFM. Then he ported the intake (he said it took a HUGE amount of time by the way) and the restriction was gone completely. The setup flowed what the heads flowed. No loss.
So....for those folks looking for every little bit this seems to be a good investement.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I have found LS1 intakes cost ported heads as much as 50 cfm loss! LS6 gets some of that "ported head flow" back but if your info is correct than aluminum intake may be worth the hassle and extra weight. My unproven or tested opinion was that LS1 style intakes hurt head flow because of air having to change directions to get into manifold runner openings. Whenever you bend airflow enough there is flow loss. If Weiand allows for subtle direction changes from plenum to port than maybe there ios something to it.
