loweredd

iTrader: (2)

I bought these bends from Speedway. I was going to get the same kit that Friday13th got, but like Lason said, the flanges were on the thin side, and I was afraid that the bends wouldn't be what I needed.

Robb

iTrader: (1)

What size piping is that 1 3/4? Is this the ideal size for DIY turbo manifold?

loweredd

iTrader: (2)

Both of ours are 1 3/4 it looks like. I checked his part # on Speedway's site. I guess diameter depends on application, but I dont think 1 7/8 would be too bad. You have to make sure not to go TOO big, because the bigger you go, the longer it will take to make pressure. Same with crossovers and intercoolers. There is more room to have to fill with air.

Friday13th

iTrader: (6)

Yeah, mine are 1 3/4 primaries.

I forgot to mention that I have other flanges that I was going to use. My father works for a GM dealership and I had him order me the LS1 flanges in the GM Performance parts catalog. He got them for $25 and he tells me that they are almost 1/2 inch thick.

Friday13th

iTrader: (6)

However........what I have learned......

if I was doing this over again. I saw in my Speedway catalog, that the sent with my pipes, that you can order just the pipes and they only cost about $90.

Then order the GM flanges for $25.

New total would only be $115 and shipping.

I will look for the header kit part number and get the GM flange part # this weekend.

Friday13th

iTrader: (6)

Any sponsors sell T6 flanges? or Turbo braces?

loweredd

iTrader: (2)

I couldn't find the header kit with just the bends for $90. BUT, the LS1 GMPP flange # is 12480130 and that is a singe flange. Order 2 if you need 2.

*EDIT* They do offer an assorted bend kit which doesn't look too bad, I wish I maybe would have tried it out too......



http://www.speedwaymotors.com/p/1731...ted-Bends.html

It's $79.99

mike247

Whatis The Site Name For There Kits

BigBlockCamaro

iTrader: (6)

Subscribing... MAKE ME A SET!!! hahaha

rx_treme

iTrader: (9)

I used the 1 3/4" Speedway kit with mild steel and had them completely wrapped.
That was a $250 mistake!
I had issues with the thin mild flanges warping. They radiated so much heat it ended up melting my brake master cylinder, warping my hood among other stuff. With the hood off the brake lights on the car in front of me would be wavering from the heat mirage, not to mention heating the windshield of my car.

Needless to say I just got done redoing them in 304 with 1/2" mild flanges and ceramic coating.
World of Difference

Should have spent the extra $100 to do it right the first time.

loweredd

iTrader: (2)

Uh, how is Speedway's mild steel header tubing any different than any other mild tubing in the world?

Maybe you routed the tubes a bit too close? I will agree the flange is a bit thin, that's why I bought the GMPP flanges.

veee8

iTrader: (40)

"They radiated so much heat it ended up melting my brake master cylinder, warping my hood among other stuff. With the hood off the brake lights on the car in front of me would be wavering from the heat mirage, not to mention heating the windshield of my car."

Remember what I said about thermal efficiency? That thin wall mild steel allows the heat to transfer very easily. Thick wall tubing will help hold the heat in, which is very good for turbos.
I wont even get into the issues you will have with cracking with the thin wall stuff. They are fine for NA headers, but probally not the best choice for turbo headers in my opinion.

rx_treme

iTrader: (9)

Originally I did speedway mild steel headers/flanges fully wrapped and a 304ss x-over pipe fully wrapped. The SS stuff you could touch briefly with your hand and hold it within an inch without burning. the mild stuff would singe my knuckle hair about 3" away, god forbid touching it.
Now its all 304 and ceramic coated but will last forever unlike wrapped mild stuff.

I'm not trying to put anyone down just trying to prevent people from making the same mistake I did with mild stuff on a turbo setup. I'm sure it would be fine on an NA car. (I still used it for my downpipe too)

Beaflag VonRathburg

iTrader: (176)

That's what we did with my friend's car. It's all old exhaust tubing bent, chopped, and welded back together.

Friday13th

iTrader: (6)

Thanks for all the feedback.

I just got done this weekend making the driver's side header.

I found that I won't have to make a passenger's side header. I used the stock firebird header and flipped it upside down. I now have to run a pipe across the front of the motor to tie into the passenger's side.

I have pics of the header I made attached. The collector will get cut down and I will weld a flange to it.

I am thinking of hi-temp powder coating the header. I don't want to wrap it because of causing it to crack. I don't have much around it except the upper control arm and the brake booster is about 6 inches away.

Syclone354

iTrader: (6)

Where did you guys order those gmpp flanges? Dealership?

Nice job on making your header, but make sure you apply the heat to the thicker metal when welding two unlike metals together. Looks like you could have used more heat to get better penetration on those welds.

loweredd

iTrader: (2)

You can go get them at the dealership parts counter.