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What's the consensus on intake manifold styles?

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Old 06-20-2010, 12:12 AM
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Default What's the consensus on intake manifold styles?

I'm trying to figure out which way would be the best to go on intake manifold style for my street '00 Z.

A traditional 90/90 setup

or

A single plane EFI setup (small cowls are an option)

I'll be doing my own independent research, but if anybody else has done any and would like to share I would greatly appreciate it
Old 06-20-2010, 12:16 AM
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if your going to do a single plane EFI, the best way to go is a 4150 TB.

that being said, both will net you about the same, however, if your sticking with a 90/90, the 4150 will give you more room to grow.
Old 06-20-2010, 12:24 AM
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I was thinking about using an elbow. I'm not sure if it's possible to put an air filter on a 4150 from the looks of it.
Old 06-20-2010, 12:49 AM
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sure there is....

https://ls1tech.com/forums/12670823-post6.html
Old 06-20-2010, 07:18 AM
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Telling us your engine is a "Street" engine isn't nearly enough info to be able to help you. Give us a rundown of what a "Street" engine is.

The general consensus is that elbows on these car KILL power, so stick with the 4150 style throttle body or the traditional plastic manifold and use a FAST 102mm.
Old 06-20-2010, 11:01 AM
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Id stick w/ the Traditional setup
Old 06-20-2010, 08:11 PM
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For now It's just going to be a bolt on vehicle with the factory LS1. Nothing fancy. Looking for a setup that will play the nicest with a heads / cam job when that time comes.

So the consensus is - stick with a 90 or 102mm setup and avoid a single plane / elbow setup because the elbow kills the power.
Old 06-20-2010, 08:18 PM
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yes the elbow does kill power, but thats why you go with a 4150 style TB.
Old 06-20-2010, 08:24 PM
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Originally Posted by bww3588
yes the elbow does kill power, but thats why you go with a 4150 style TB.
That link you posted... Did the guy get to keep both of his windshield wipers?
Old 06-20-2010, 08:26 PM
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yes, it can be done, just takes some careful triming and attention to detail to seal it. not a big problem for how well the 4150 performs.
Old 06-20-2010, 08:35 PM
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Do you have any suggestions on which carb hat to use with the 4150?

The help and links have been greatly appreciated.
Old 06-20-2010, 08:45 PM
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Spectre
Old 06-20-2010, 09:04 PM
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Originally Posted by bww3588
yes the elbow does kill power, but thats why you go with a 4150 style TB.
I went from a stock setup with bolt-ons to a BBK intake and 80mm TB. I noticed a slight loss in bottom end (still smoke em for 100yrds) but a good improvement in the mid range and top end.. Then went to a Victor Jr. Aarons elbow and a FAST 90mm TB and had no loss anywhere except an increase in top end. To each his own. Different setups will produce different results.
Old 06-20-2010, 10:23 PM
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Originally Posted by bww3588
yes the elbow does kill power, but thats why you go with a 4150 style TB.
Is there an echo?




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