Boosted LS7 intake manifold
Boosted LS7 intake manifold I was looking at intake options today for a boosted ls7 headed car and they are pretty slim pickings. I've got a ported ls7 for now, but was wondering what my choices would be for an upgrade? Holley long runner is gonna be tight (and I personally hate the look of that intake) and it seems like the only single plane options under $1000 isn't really an upgrade from the ls7. (Not looking to spend 1000+ on an intake)
Any suggestions? My current ported ls7 is on loan, so I'll need to replace it eventually. Just looking at options.
Any suggestions? My current ported ls7 is on loan, so I'll need to replace it eventually. Just looking at options.
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The composite intake will stand up to 30+ PSI.
The intake doesn't care how much power you're making. It only needs to supply enough air for N/A needs. Boost pressure doesn't force it to flow any extra CFM, it still flows the same CFM at a different pressure. CFM is an ambiguous term and doesn't have any correlation with pressure. Unless the LS7 is a major restriction for your engine out of boost, it sure isn't going to be a restriction with boost.
This is why there has been over 1000 HP made on the stock LS1 intake manifold, and the stock 75mm throttle bodies.
The intake doesn't care how much power you're making. It only needs to supply enough air for N/A needs. Boost pressure doesn't force it to flow any extra CFM, it still flows the same CFM at a different pressure. CFM is an ambiguous term and doesn't have any correlation with pressure. Unless the LS7 is a major restriction for your engine out of boost, it sure isn't going to be a restriction with boost.
This is why there has been over 1000 HP made on the stock LS1 intake manifold, and the stock 75mm throttle bodies.
The composite intake will stand up to 30+ PSI.
The intake doesn't care how much power you're making. It only needs to supply enough air for N/A needs. Boost pressure doesn't force it to flow any extra CFM, it still flows the same CFM at a different pressure. CFM is an ambiguous term and doesn't have any correlation with pressure. Unless the LS7 is a major restriction for your engine out of boost, it sure isn't going to be a restriction with boost.
This is why there has been over 1000 HP made on the stock LS1 intake manifold, and the stock 75mm throttle bodies.
The intake doesn't care how much power you're making. It only needs to supply enough air for N/A needs. Boost pressure doesn't force it to flow any extra CFM, it still flows the same CFM at a different pressure. CFM is an ambiguous term and doesn't have any correlation with pressure. Unless the LS7 is a major restriction for your engine out of boost, it sure isn't going to be a restriction with boost.
This is why there has been over 1000 HP made on the stock LS1 intake manifold, and the stock 75mm throttle bodies.
Yes it's totally possible to make the power on this manifold but I'm sure there are other options that will make it easier and will be less dependant on the turbo. I'm asking for alternative suggestions, not if the ls7 will work. Eventually I'm sure I will turn the car up well beyond 1300hp so I would like an intake that isn't a bottleneck at that point.
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That is kind of what I'm seeing. Seems strange that edelbrock doesn't make any Proflow xt or Vic Sr for the ls7 port, and the GMPP single plane looks like it has very little plenum volume. I might just go with a Holley and eventually do a sheet metal top half. But I was hoping someone knew of some good alternatives.
Also you asked what heads I ran but changed it, figured it would be good to know for suggestions. PRC 265cc ls7 heads are on it.
Also you asked what heads I ran but changed it, figured it would be good to know for suggestions. PRC 265cc ls7 heads are on it.
Last edited by mistafosta; Mar 15, 2015 at 01:26 PM.
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That is kind of what I'm seeing. Seems strange that edelbrock doesn't make any Proflow xt or Vic Sr for the ls7 port, and the GMPP single plane looks like it has very little plenum volume. I might just go with a Holley and eventually do a sheet metal top half. But I was hoping someone knew of some good alternatives.
Also you asked what heads I ran but changed it, figured it would be good to know for suggestions. PortedbyRayCharles 265cc ls7 heads are on it.
Also you asked what heads I ran but changed it, figured it would be good to know for suggestions. PortedbyRayCharles 265cc ls7 heads are on it.