kmracer

iTrader: (1)

yea, i read all about it before, but didnt do any of it. go figure. i tacked it and then said **** it. im gonna cut it off and redo it. i just dont have any kind of oven i can heat it in. im gonna have to turn my bbq into an oven.

MUSTANGBRKR02

iTrader: (91)

Use your house oven. Just make sure they are clean so you don't stink up the house.

Blownz28man

iTrader: (2)

Post some pics of your wifes face when she catches you! HAHA

CarsandWomen

iTrader: (19)

if it gets hot enough, mine goes to 550 and Id turn it all the way up but id ask questions first. If the OP gives me a little info about his weld process, base and filler metal mixtures, and oven temp. I can run it by one of the welding engineers at work and ask if it will be effective and get a soak time@temp.

kdavis

iTrader: (14)

I'm looking into a log style like in the first post. The primaries are facing toward the flow unlike alot or logs, shouldnt they flow better because of it? And be less prone to cracking?

MUSTANGBRKR02

iTrader: (91)

Hell you really only need 2-300 degrees out of it to get the job done. After it's welded just stick it back in there and let it cool.

I welded my 8.8 housing tube ends by putting a 500w light on the housing and heating it that way. It just needs to be a slow heat/ cool and evenly applied.

91blowthru

i researched this for like a year! and most of what i found was YES, power CAN be made with a log... is the best? who knows porbably not...

i would have to agree the efficient power level probably lies somewheres around 550-600rwhp...

this is mine, sched. 10,
lq4, rod bolts, timing chain, ls6 cam, pushrods, valvesprings, 73lb injectors,
and tc78(f1-68) with 1.15 a/r looking to make 600 rwhp through my 4l80e.

also this is in a 99 gmc sonoma....

91blowthru

this is my beater its going in...

yessir

iTrader: (5)

5.0 mustang shorites mated to ls1 flanges work edgreat for me

Blownz28man

iTrader: (2)

Those manifolds look great. Go ahead and make me a set. You using a stock manifold on the driver side? Stock 6.0?

4SFEDSS

iTrader: (19)

Those look just like the first ones I made.

turbo iroc

iTrader: (1)

A 98 camaro passenger side manifold fits on the driver side of a third Gen facing forward. I was going this route until I couldn't find one that fit on the passenger side. I decided to go with stainless headers instead. I spent maybe 500 dollars on flanges and 1 3/4 in pipe. Custom headers here we come! Pm me if your interested in the manifold. As far as I know the 98 manis are different than 99-02. Material also, they look more like steel rather than cast iron.

turbo iroc

iTrader: (1)

Also I've seen truck manis used on third gens, but flipped forward and up. Makes for a funky looking setup tho. Kinda pointing up toward the hood then ubends down and forward in front of the accessories.

91blowthru

im using a 1 5/8" primary shorty header, wrapped on the drivers side. fbody manifold wouldve fit but truck manifold wouldnt...

CarsandWomen

iTrader: (19)

98's are different, they are Stainless as well, i can post a pic of mine if you want.

MUSTANGBRKR02, 200 or 300 isnt hot enought to stress the welds into breaking the bonds so they can be re-formed, needs hotter than that. The average preheat temp is minimum 400 and most carbon filler 4130 base are 700 preheat 800 interpass. The PWHT soak temps are mostly 1100 F minimum and range as high as 1300. soak times are accross the board from 1 to 14 hours.

thats why I say, If i can get a little more info about the materials I can get an exact PWHT for it.

Phil99vette

iTrader: (11)

I dont understand why anyone would take the time and build a manifold and not buld the most efficient one. I've built plenty of stuff and IMO its easier to make a 4 into one than it is to make log style. I sincerely dont understand why one would build one. If you can buy it cheap cheap and its all about $$ than sure.

4SFEDSS

iTrader: (19)

Ive done quite a bit of fabrication and what scares me about making a header is where the 4 tubes join at the collector, how do you get down in the centers so they dont leak. I've seen the little diamond peices that some people use to fill the void but I dont think I could get my tig torch down very far.

IMPATIENT 1

x2, i'd love to build myself a set of twin turb headers for my dragboat but the merge part skeers me alil, jus have never done it before. i built this setup for the dragboat this summer, but this fall im gna try a pair of ebay gt45's on a alum 6.2, would really like to build it myself.

btw, no im not holding up the s480 with the hotside, gta bracket to do that with , its jus not in the pic lol

Phil99vette

iTrader: (11)

Its easy....

- You weld the star or merge bullet in place and weld 1/4-1/2" up the seam of where the pipes join
- When you weld the collector on, you weld around the perimeter and joint the perimeter welds to your seam welds
- Make sense?

IMPATIENT 1

well that dont look too tuff phil, thanx for the pic! guess what worries me is i wont get a good seal in that area. ive gotta awesome welder for a next door nieghbor and friend that does my tiggin.

the ls stuff is jus beginnin in the jetboat world and ive been wanting to put together a twin turbo kit i can eventually start selling to some guys next spring.i built the single deal jus to see how well a ls would work against a say 900hp racegas bbc, if it pans out and works, ill have nuff vids and races under the setup to show its a viable option, lighter to boot!