LS fabricated intakes
Teching In
Joined: Jan 2014
Posts: 16
Likes: 0
From: Yakima, Washington
Here is one I built in my garage for my boat. Has a intercooler integrated inside. It uses fresh lake water to cool along with Water Meth. It works great with forced induction and also works very well NA as well. It's definitely not a Marcella or the likes. Just wanted my own deal for fun.
What about these runners? It looks like ProComp/Speedmaster updated the intake runners and they do look better.
http://www.ebay.com/itm/261750030617?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
http://www.ebay.com/itm/261750030617?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
didnt one of the vendors or shops that post on here buy a 800 dollar intake , cut the top off to fix the slag and crap and then weld it back up and only had like 1400 into it . Much less than the other fabbed intakes.
That new intake looks better, but remember, with very short runners like that, it's going to push your power band considerably higher in the rpm range, we're talking from mid 5000rpm peak torque, to almost 7000rpm for peak. Sounds great, except you need to have a cam that works with that, as well as the valvetrain that can support that, ie light valves, strong pushrods, etc etc.
That new intake looks better, but remember, with very short runners like that, it's going to push your power band considerably higher in the rpm range, we're talking from mid 5000rpm peak torque, to almost 7000rpm for peak. Sounds great, except you need to have a cam that works with that, as well as the valvetrain that can support that, ie light valves, strong pushrods, etc etc.
Launching!
Joined: May 2013
Posts: 212
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From: Fairfax, VA
Here is one I built in my garage for my boat. Has a intercooler integrated inside. It uses fresh lake water to cool along with Water Meth. It works great with forced induction and also works very well NA as well. It's definitely not a Marcella or the likes. Just wanted my own deal for fun.
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
There's a dyno of one vs a stock LS3 intake around here somewhere. Might've even been on a stroker, and it had a big cam. EBay intake made a few more peak hp, but lost TONS of power and torque below 6200 RPM. Slowed it down quite a bit.
http://onthedyno.com/GM-LS-motor/art...abricated-ls3/
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Verdad Gallardo Teching In
Joined: Jan 2014
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From: Yakima, Washington
Teching In
Joined: Dec 2017
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Here is my set up. With an aggressive LSR Comp cam PART#:54-459-11GRIND #:281LR HR13TYPE:Hydraulic RollerSERIES:LSR™RPM RANGE:2000-7000ADV. DURATION INT:281ADVERTISED DURATION EXH:289INT DURATION @ .050":231EXH DURATION @ .050":239VALVE LIFT INT (IN.):.617VALVE LIFT EXH (IN.):.624ROCKER RATIO:1.7LOBE SEPERATION:113INTAKE CENTERLINE:109
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
There's more than enough info out there about these now. Tons of dyno tests have been done to show that in most circumstances, they just aren't worth the effort. That even includes with boost.
