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Old Jun 29, 2012 | 10:49 AM
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Default Intake manifolds?

I know we can't use a Fast because of clearance issues with the power steering but what about the typhoon, bbk, professional products.... all the aluminum ones. Couldn't the back be modified the welded for clearance and then use after market fuel rails? I was just curious if any one tried them or if they would work.
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Old Jun 29, 2012 | 12:57 PM
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thats what i mentioned in the LS1/LS6 sticky but im thinking since its already a remount mount PS tank that it would be to easy to relocate it and free up room and use a FAST or typhoon, Keeep in mind the TYPHOON and BBK etc are metal which will heat soak pretty bad on our cars IMO id stick with LS6 or a FAST 90 /92
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Old Jun 29, 2012 | 02:00 PM
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Originally Posted by 91parkave
thats what i mentioned in the LS1/LS6 sticky but im thinking since its already a remount mount PS tank that it would be to easy to relocate it and free up room and use a FAST or typhoon, Keeep in mind the TYPHOON and BBK etc are metal which will heat soak pretty bad on our cars IMO id stick with LS6 or a FAST 90 /92
I think the heat-soak issue is fallacy. The air spends such a short time in the intake, there's simply no time for it to measurably heat up. There are several threads here that document just that.

I'd have no issue swapping an composite intake for an aluminum unit if it increased flow.

As far as the other intakes that the OP mentioned, they would still require a modded valley cover and OPSU, as well PS and possibly alternator bracket mods.

Believe it or not, the easiest "fit" is a truck intake, which requires no OPSU mods and only some trimming of the alternator bracket. Problem is, the top of the intake needs to be modified to clear the hood, as well as the underside of the hood itself. You'd also need to adapt the LS4 throttle body to fit and figure out what fuel rails to use.
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Old Jun 29, 2012 | 02:14 PM
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Look when anyone gets a new intake I want there LS4 intake so shoot me a price!!!
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Old Jun 29, 2012 | 06:39 PM
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If I disable the DOD can't I use a differant valley cover or do I have swap out lifters and cam. And if that's the case I think I would like the aluminum better as I could take it to someone that has a mill and have te bottom taken down a bit. I am just wondering cause I would like to get all the stuff the do it all at once (intake and exhaust).
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Old Jun 30, 2012 | 08:30 AM
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You have to get rid of DOD completely to get rid of the tray not just tune it out, so you are correct.

I don't think the bbk or typhoon flow much better than the ls6 intake. And a composite intake is way better. My buddies H/C gto with a fast 102, you are able to touch the intake 2 mins after the cars shut off. Other buddy with a H/C Camaro with a bbk, 30 mins later it's still pretty warm to the touch.
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Old Jun 30, 2012 | 06:31 PM
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Originally Posted by LS1 Racing
I think the heat-soak issue is fallacy. The air spends such a short time in the intake, there's simply no time for it to measurably heat up. There are several threads here that document just that.

I'd have no issue swapping an composite intake for an aluminum unit if it increased flow.

As far as the other intakes that the OP mentioned, they would still require a modded valley cover and OPSU, as well PS and possibly alternator bracket mods.

Believe it or not, the easiest "fit" is a truck intake, which requires no OPSU mods and only some trimming of the alternator bracket. Problem is, the top of the intake needs to be modified to clear the hood, as well as the underside of the hood itself. You'd also need to adapt the LS4 throttle body to fit and figure out what fuel rails to use.
I hear you but i think on a DD Heat soak is alot more applicable if were just 1/4 mile runs or dyno queen then sure but we all know cooler air to a certain extent is the way to go. The truck intake though is more tourqe oriented while being a easy up grade after shaving the top of it off, you still wouldnt outflow a ls1 intake. to me it seems that a fast 90 would be great relocating the PS resoivoir seems easy enough as its already a remote setup. BTW so if we were to get that katech tray that has a flat opsu we would be good to go right?
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Old Jul 1, 2012 | 12:55 PM
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It seems like I keep repeating myself on here but...

https://ls1tech.com/forums/attachmen...t-proxt-ls.jpg

I measured 9 1/2" from the valley cover to the hood insulation. With the LS2 version you could run a 90mm TB.

Of course nobody has done this so you'd better double check every before you try.

Oh and the Edelbrock would be backwards.
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Old Jul 1, 2012 | 01:41 PM
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Originally Posted by 91parkave
I hear you but i think on a DD Heat soak is alot more applicable if were just 1/4 mile runs or dyno queen then sure but we all know cooler air to a certain extent is the way to go. The truck intake though is more tourqe oriented while being a easy up grade after shaving the top of it off, you still wouldnt outflow a ls1 intake. to me it seems that a fast 90 would be great relocating the PS resoivoir seems easy enough as its already a remote setup. BTW so if we were to get that katech tray that has a flat opsu we would be good to go right?
Truck intake does outflow the LS1 intake across the entire powerband. Research it. The truck intake is also better than the LS6 up to about 4000 RPMs. The LS6 is better above that level, but people underestimate just how good the truck intakes are. The main problem with them is the fact that they need a lot of massaging to fit passenger cars.
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Old Jul 1, 2012 | 05:33 PM
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Originally Posted by LS1 Racing
Truck intake does outflow the LS1 intake across the entire powerband. Research it. The truck intake is also better than the LS6 up to about 4000 RPMs. The LS6 is better above that level, but people underestimate just how good the truck intakes are. The main problem with them is the fact that they need a lot of massaging to fit passenger cars.
You are indeed correct i started research lastnight and now if i can score a 06-09 4.8 5.3 6.0 truck intake which is the same as the TBSS one i will do that , i have experience already shaving the tops off these so that wont be a problem
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Old Jul 1, 2012 | 05:46 PM
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Originally Posted by 91parkave
You are indeed correct i started research lastnight and now if i can score a 06-09 4.8 5.3 6.0 truck intake which is the same as the TBSS one i will do that , i have experience already shaving the tops off these so that wont be a problem
It will hit the power steering pump.
https://ls1tech.com/forums/ls4-perfo...ke-option.html
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Old Jul 1, 2012 | 06:25 PM
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Originally Posted by Brian396
It will hit the power steering pump.
https://ls1tech.com/forums/ls4-perfo...ke-option.html
Yup...That's the other part of it.
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Old Jul 2, 2012 | 12:22 AM
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Originally Posted by LS1 Racing
Yup...That's the other part of it.
The pump or the resoivoir?
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Old Jul 2, 2012 | 07:39 AM
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Pump.
Check out the pics in the thread I posted, post #12 & #16
I cut the suction line off the O'reillys pump and welded it back on.
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Old Jul 5, 2012 | 11:29 AM
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That's what I ran into with the TBSS intake. Low91 is having better luck with the regular truck intake. https://ls1tech.com/forums/ls4-perfo...arlo-ss-2.html

Last edited by Brian396; Jul 6, 2012 at 08:58 AM. Reason: I'll stump spell cheek from time to time.
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Old Jul 5, 2012 | 11:52 AM
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Another option would be Edelbrock Victor jr with an elbow. Edelbrock has a couple elbows, and IntakeElbows.com has some nice looking stuff, but I'm having trouble with there web site.

Last edited by Brian396; Jul 6, 2012 at 08:59 AM.
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Old Jul 5, 2012 | 10:08 PM
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I was wondering but thought it might be to high. If it is an option though there wouldn't be a need to modify the tray or power steering.
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Old Jul 6, 2012 | 03:00 AM
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Why wouldn't something like this work with an elbow on the top that would bend over to mount the throttle body to? If an adapter were made, would this be a decent way to go? I like the visual appeal as well.



Edit: Oops. I just realized that Brian396 suggested pretty much the exact same thing...

Last edited by MillerMonteSS; Jul 6, 2012 at 03:06 AM. Reason: Brain fart...
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Old Jul 6, 2012 | 08:21 AM
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Originally Posted by MillerMonteSS
Edit: Oops. I just realized that Brian396 suggested pretty much the exact same thing...
Yeah but you got pictures.
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Old Jul 6, 2012 | 09:58 AM
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I think we would have to use the low profile elbow for hood clearance.
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