67LS1T56

Where can I get it to build manifold for twins in a stock 2001 ls1 and what size it should be?
Thanks

wilson34

iTrader: (7)

It's schedule 10 tubing, vibrant performance sells the t's and mcmaster has the bends and tubing for the cheapest I found.

67LS1T56

Thanks, I got it. So it is good enough for a mild turbo set up?

OUTLAWZ RACING

iTrader: (9)

I think so as long as the turbos are braced so they will keep the weight off the manifold.

98SuperchargedLs1

iTrader: (1)

loos like my same setup that i will be running in my 65 chevelle.. looking to be around 550rwhp on 8spi or so. they are not done yet but getting there. and these came from vibrant performance. they are very thick and seem like it will be strong but well see.
i still need to have them finished and then ceramic coated

ss.slp.ls1

iTrader: (36)

So Vibrant Perf has the T's, Mcmaster has the bends, where do you get the flanges?

bonnarls1

iTrader: (20)

what's the price on them???

98Z28CobraKiller

iTrader: (17)

That's not for you. Move along.

98SuperchargedLs1

iTrader: (1)

what do you mean thats not for him? im just wondering if here is something wrong with the manifolds that are being built for me if so i can bring it up to them... any help would be great

JAX04

iTrader: (17)

im guessing the flow characteristics wont be optimal at all. that def looks like a very small header. Just my thoughts.

XtremeDime

iTrader: (16)

egzost. lol.

98Z28CobraKiller

iTrader: (17)

I would only do that if there is no other option. I dont like the hard T, specially that close to the head. If I were stuck using logs, I would come of the head with a soft bend before going into the T. I preffer the stock manifolds and have a plan in my head already for a modified set with vbands on Joe's car.

wilson34

iTrader: (7)

The tubing is 1.5nom which has a larger inside diameter than stock manifolds. I'm pretty sure it is like or 1.6875" or something like that. You can run a 45degree bend on the flange to 2.5 nom tubing to make a more efficient log setup, for real cheap to

Snyper

iTrader: (27)

My idea is becoming popular lol. So far mine are working great..0 leaks or cracks.

Johnv

good luck with plug lead clearence too !

98SuperchargedLs1

iTrader: (1)

hmmm im going to have to talk to my builder and see why he did it that way.. i think it was b/c i dont have much room with the downpipe. and im only looking to be around 550rwhp. and im also using a/c if that matters.. i'll ask him saturday

eviltwin_1987

iTrader: (18)

With those logs you are pushing all of you exhaust through two 1.6xx" tubes though. I can't see that being very good performance wise. Someone correct me if I'm wrong please

CarsandWomen

iTrader: (19)

^^^ well really the size doesnt matter so much because its all being forced through a very small space in the scroll of the turbo, but the ability for gases to make hard bends produces more restriction, resulting in poorer performance.

wilson34

iTrader: (7)

Thats why you should just do elbows from the primary into a larger diameter 2.5nom pipe.

Syclone354

iTrader: (6)

I made my own set of log manifolds for my setup. You can see a couple pics here - http://www.syty.net/forums/showpost....6&postcount=20

I just went 10.99 @ 125 a couple weeks ago on a hot day, 3800 lb truck, 10 lbs of boost, 93 octane, and street tires. I'd say they work just fine.