Intake manifold

[zz430camaro]

Every car on here that was not set up for serious rpm, the manifold falls short. Its a great drag race piece just like the rest but for street driving it is a waste.

If I built a 7500+ motor I would buy it for sure, but anything under 6500 its eye candy.

[sixty9fordkiller]

@zz true! the LS1tech guys told me (before i got the AFR heads) that the stock LS3 manifold would restrict the heck out of them Shout out to Darth and Hammer


So long story short, im gonna leave my chevrolet performance lifters in the car now, but with yellaterra ultralites and pac1207x and spin it!

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[sixty9fordkiller]

once i complete my fuel system, clutch, and wheels, im gonna install the johnson short travels and take it as high as it wants

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[Tajefe Couple]

Originally Posted by Sturgill_SS

That's why I didn't show numbers just yet.. I lost torque but only because of the open headers. Once I get a nice system put back on that torque curve will be great. On this Dyno I made 472/404. High lines are HP low lines are TQ. Lower lines are stock manifold. Once I get a good exhaust on the car total gains should be about 35-40 WHP and a few TQ between the exhaust and manifold when it's all said and done. I'm also going to throw a 102mm TB on it. When the Dyno with the stock Intake was done originally I actually had 3 Inch exhaust piping all the way back. With the 3 manifolds that I tested, here are the final number for comparison. LOD numbers will be projected based on getting a good exhaust.

Holley Sniper Low profile
432 / 350

Stock manifold
449 / 394

LOD
490ish / 410ish @ 7400

Confused? Thought you had a bad exhaust setup from the time you got the car with 2 1/2" exhaust pipe and a truck muffler
Just trying to understand not start drama, seems like the LOD is where it's at!

[xc_SS/RS]

Originally Posted by Sturgill_SS

Roader shoot me pics of the exhaust and specs. I'm not far from Virginia! 8594457439

I've got a 3" Magnaflow axle back I could sell ya!

[lazerlemonta]

Im still utilizing a 2 1/2" NPP lol I honestly just love the function of it.

[xc_SS/RS]

Originally Posted by lazerlemonta

Im still utilizing a 2 1/2" NPP lol I honestly just love the function of it.

The Camaro mufflers don't do much when you've got headers and no cats open or closed lol but there is zero drone

[Sturgill_SS]

Originally Posted by Tajefe Couple

Confused? Thought you had a bad exhaust setup from the time you got the car with 2 1/2" exhaust pipe and a truck muffler
Just trying to understand not start drama, seems like the LOD is where it's at!

That's my bad. The car had the truck muffler when I got it. I cut the cats out and added 2.5 inch adapter pipes. Not a good idea at all. And yes. The LOD is definitely where it's at!

[Roader]

Originally Posted by Sturgill_SS

That's my bad. The car had the truck muffler when I got it. I cut the cats out and added 2.5 inch adapter pipes. Not a good idea at all. And yes. The LOD is definitely where it's at!

I bought my car used as well and for some reason where the cats were supposed to be they replaced it with smaller pipe than the rest of the 3” exhaust. I cut them out and welded in new 3” pipes. No idea if it provided any benefit

[go_go_gadget88]

Originally Posted by 1JEWLDSSRS

Yea I kinda figured being an auto it will always be lower. I see you have the same cam I do though, 231/246 @112 LSA..

111 LSA here, but yessir, damn close!

Mine feels like it runs out of steam around 6600..guessing that is where my manifold restriction is starting to show itself.

[WHAMMO]

Originally Posted by go_go_gadget88

111 LSA here, but yessir, damn close!

Mine feels like it runs out of steam around 6600..guessing that is where my manifold restriction is starting to show itself.

Stock manifold is just a dive from 6600...

[1JEWLDSSRS]

Originally Posted by go_go_gadget88

111 LSA here, but yessir, damn close!

Mine feels like it runs out of steam around 6600..guessing that is where my manifold restriction is starting to show itself.

Yes sir, my stock manifold on my dyno sheet with the cam and stall BEFORE the LOD started running out of umph around there as well. Now with the LOD, you get above 6000 and man this thing just wants to SCREAM all the way out the back door !!! Non stop except the rev limiter at 7200...

[xc_SS/RS]

So what's the word on another group buy?? Asking for a friend! Lol

[13SSCamaro]

Man i am wanting to see how much of an improvement mine would make with the LOD. You can see on mine where the GPI rod modded and ported intake flatens out.
This is the 3 dynos I did with added mods each time.
2013 Camaro SS M6 Stock trans, clutch, rear gears

Blue line: 418rwhp 412rwtq on 93 Octane
BBK 1 5/8 Long tube headers and high flow cats
Corsa Xtreme ZL1 Exhaust
Cold Air Inductions CAI
Janetty Remote Tune

Red Line: 487rwhp 442rwtq on 93 Octane
TSP 1 7/8 Long tube headers and no cats
Corsa Xtreme ZL1 Exhaust
Cold Air Inductions CAI
TSP stage 3 231/246 cam
TSP trunion upgrade
Custom tune

Green Line: 512rwhp 462rwtq on E-85
TSP 1 7/8 Long tube headers and HIGH FLOW CATS ADDED
Corsa Xtreme ZL1 Exhaust
Cold Air Inductions CAI
TSP stage 3 231/246 cam
TSP trunion upgrade
GPI rod modded and ported intake manifold, heat shield added
VMAX PTB
Trickflow Gen X 255 heads milled 0.025 and valve job
ZL1 fuel pump and flex sensor
850 injectors and on E-85
Custom tune