ls1 vs ls6 intake
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Teching In
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From: va
ls1 vs ls6 intake can anyone tell me where the restriction in the ls1 intake is compares to the 6
just wondering if runners are larger or
the main tunnel or what?
they look identical from the top!
just wondering if runners are larger or
the main tunnel or what?
they look identical from the top!
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Joined: Jan 2002
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From: Earth
Re: ls1 vs ls6 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 gasnpas:
<strong>
they look identical from the top! </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">They don't from the bottom. The LS6 intake has a flat bottom. I'm not sure where the exta flow comes from. I would imagine that has somethign to do with it.
<strong>
they look identical from the top! </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">They don't from the bottom. The LS6 intake has a flat bottom. I'm not sure where the exta flow comes from. I would imagine that has somethign to do with it.
Re: ls1 vs ls6 intake Per GM,
The LS6 manifold will provide your engine with a 10% increase in AVAILABLE airflow, IF IF IF your engine is capable of using this increase in airflow.
So, in a "nut-shell", the LS6 manifold is an "improvement" ,over the LS1 manifold in it's ability to let more air flow thru it. It has an increase in plenum volume , and an improvement in runner shape & size.
That's why many LS1 don't see any "gains" with the LS6 manifold, as your LS1 has to have a NEED for the extra airflow...
Some LS1 see LOSES with it... <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />
It's the total PACKAGE thing...
It is a NEEDED part of ALL head and cam packages for sure... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Dave
The LS6 manifold will provide your engine with a 10% increase in AVAILABLE airflow, IF IF IF your engine is capable of using this increase in airflow.
So, in a "nut-shell", the LS6 manifold is an "improvement" ,over the LS1 manifold in it's ability to let more air flow thru it. It has an increase in plenum volume , and an improvement in runner shape & size.
That's why many LS1 don't see any "gains" with the LS6 manifold, as your LS1 has to have a NEED for the extra airflow...
Some LS1 see LOSES with it... <img border="0" title="" alt="[Embarrassed]" src="gr_emb.gif" />
It's the total PACKAGE thing...
It is a NEEDED part of ALL head and cam packages for sure... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Dave
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Joined: Jan 2002
Posts: 45,841
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From: Earth
Re: ls1 vs ls6 intake 2000Firehawk, agreed.
Heads/cam cars are usually stifled by the LS1 intake. That's where the LS6 would benefit.
I still can't believe there isn't a good aftermarket alternative to the LS6 intake.
Heads/cam cars are usually stifled by the LS1 intake. That's where the LS6 would benefit.
I still can't believe there isn't a good aftermarket alternative to the LS6 intake.
Re: ls1 vs ls6 intake That's because GM is on top of it's "game" with it's "state-of-the-art", LS1 head and manifold engineering design... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
At this present time, it doesn't get an better than this... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
The GM "truck" manifolds would make our cars "rock" depending on the "package" setup. BUT these manifolds won't fit our cars... <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
Holley/Weiand tryed with their NEW LS6 intake design... EVERYONE thought that this would be one A@@KICKING manifold.. NOT !!!
Dave
At this present time, it doesn't get an better than this... <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
The GM "truck" manifolds would make our cars "rock" depending on the "package" setup. BUT these manifolds won't fit our cars... <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" />
Holley/Weiand tryed with their NEW LS6 intake design... EVERYONE thought that this would be one A@@KICKING manifold.. NOT !!!
Dave
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Joined: Jan 2002
Posts: 45,841
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From: Earth
Re: ls1 vs ls6 intake Holley's manifold has too many issues...vaccuum leaks, weight, heat soak, etc. And to top it off, they really don't show anymore power gain that converting to an LS6 intake. I hear you regarding the truck intake. No way that's going to fit with our cowl's/hoods.
Re: ls1 vs ls6 intake </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif"> The GM "truck" manifolds would make our cars "rock" depending on the "package" setup. BUT these manifolds won't fit our cars... </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Marginally true...the LS6 intake will still outflow the truck intakes! The truck intake does flow better than an LS1 intake though.
