357i

iTrader: (4)

I have done a pile of searches with no real info. I plan to make a couple log style manifolds for my turbo project. I am not doing truck manifolds because I want to keep the A/C. I will be using 304 stainless and I'm interested in some input on sizes. I'm guessing 1 5/8 primaries, but not sure of what thickness. All for primaries will run into a single tube(the log) and I'm unsure of the size and thickness that should be, maybe 2 1/8 or 1/4? I plan to have the turbo supported to keep the stress off of the manifolds and pipes.

So far, I'm planning to get everything from these guys:
http://www.stainlessheaders.com/index.aspx

Any input, links or pics would be appreciated.

MUSTANGBRKR02

iTrader: (91)

Modify stock manifolds to a log style.

shawnc16

Built these. 1 1/2" sch. 10 elbows with 2" sch. 10 logs. The pipe I bought from ace stainless.

2QWK4RU 06 GOAT

iTrader: (1)

Very nice.

87silverbullet

iTrader: (11)

Why not a c6 manifold on the passenger side?

Don't have to build nothing but a crossover and still keep the A/C/

dmaxvaz

iTrader: (1)

Nice! Shawn, send me a link where you bought those flanges again.

shawnc16

http://www.extremeperformance1.com/chevy-ls-c-85

Also would like to note the 2" pipe fits perfectly (butt welded) with 2.25" v bands.

LSXS10

iTrader: (37)

How well do the logs work compared to stock manifolds or headers?

427

iTrader: (3)

Very cool!


Kurt

357i

iTrader: (4)

This is exactly what I am looking to do.

you got the 1/2" thick 1.75 flange? Seems like a pile of gap to fill with the 1.5" primaries. Did you weld inside and out on the primaries?

thanks

shawnc16

The fit isn't perfect but it's not bad. ID of the 1.5" pipe is actually more like 1 5/8. We did outside because the manifold was bolted to the head to minimize warpage.

357i

iTrader: (4)

The 1.5 stuff on ace's website were all 1.5 OD and 1.37 ID Am I looking in the wrong place?

LilJohn

The sizing on those weld els is decieving.

Its 1.5 inch Nominal.

The ID is actually 1.600.... almost 1 5/8's.

The od is 1.830-1.850. The flanges ive seen set up for a 1 7/8's pipe allow the weld el to fit inside the flange against the face of the head almost. It ***** it just a touch. I backed them up till the end of the pipe was square to the flange and had them welded on both sides of the flange and the surfaced.

I like how you fed that end cylinder into the log shawn... great job on those.

Edit:

The dimensions stated above are only for the schedule 10 stuff.

ls1_chevelle

iTrader: (9)

Heres mine, been on the car for 3 years now. Changed the wg line a bit, just orientation wise.

shawnc16

Thanks guys. Gotta wait til next season to see how they perform.

BOOST FREAK

looks good.

Haddixj

iTrader: (1)

curious on where you guys found 2.25 v bands?

tta656

iTrader: (5)

pic of the C6 manifold please