Building turbo headers...

DallasGT01 · 05-01-2008, 01:25 AM

what metal should be used???

stainless or mild steel?

Danny B · 05-01-2008, 04:03 AM

I've gone for mild steel and having them ceramic coated as I feel there less likely to crack in everyday conditions, If it was mainly a race truck then it would be S/S for me!!

oiN8io · 05-01-2008, 02:58 PM

mild steel can still rust even through the ceramic coatings. especially if you live in a very humid climate. I used stainless steel, and if welded properly it will be just as strong as mild. As long as the headers arent what is supporting the weight of the turbo you shouldn't have any problems with using SS..

DallasGT01 · 05-02-2008, 12:20 PM

is 3/8" to thin for the flange and is 2mm thick 304 stainless for tubing to thin?

Danny B · 05-02-2008, 05:26 PM

i done my flanges 1/2" and 2mm is fine for tubing.

oiN8io · 05-03-2008, 12:45 AM

you will have a lot of problems with warping with 3/8"

DallasGT01 · 05-05-2008, 11:28 AM

Quote:

Originally Posted by oiN8io

you will have a lot of problems with warping with 3/8"

how thick should i go then?? 1/2" ??? also can i use 1 7/8" for the primaries???

Danny B · 05-07-2008, 06:44 AM

Quote:

Originally Posted by DallasGT01

how thick should i go then?? 1/2" ??? also can i use 1 7/8" for the primaries???

17/8"ths would be over kill, mine are 13/4" but still concider those quite large for 1000hp range.

DallasGT01 · 05-07-2008, 01:15 PM

Quote:

Originally Posted by Danny B

17/8"ths would be over kill, mine are 13/4" but still concider those quite large for 1000hp range.

there isnt much of a differeance in the 1 7/8" vs 1 3/4" its 1/8" and i found the 1 7/8" cheaper so thats why i figured i would do that...

do you see it harming anything if i do go 1 7/8"

Danny B · 05-08-2008, 03:24 AM

Quote:

Originally Posted by DallasGT01

there isnt much of a differeance in the 1 7/8" vs 1 3/4" its 1/8" and i found the 1 7/8" cheaper so thats why i figured i would do that...

do you see it harming anything if i do go 1 7/8"

Yes the is only 1/8th differents in diameter but we are talking tube volume and 1/8th makes for quite an increase, The differents will be slower spool up, When the exhaust gasses are hot they are compact and flow fast, but once they get into a big area they will cool quicker and slow down so the aim is to keep them fast flowing upto the exhaust housing.

DallasGT01 · 05-08-2008, 03:28 AM

Quote:

Originally Posted by Danny B

Yes the is only 1/8th differents in diameter but we are talking tube volume and 1/8th makes for quite an increase, The differents will be slower spool up, When the exhaust gasses are hot they are compact and flow fast, but once they get into a big area they will cool quicker and slow down so the aim is to keep them fast flowing upto the exhaust housing.

thats what i was thinking about the spool....

so it looks like i will need to up the $$$

any special place you get the tubing from? cheaper???

brainbypass mod · 05-08-2008, 11:24 AM

also, when you weld the flanges on, you should bolt them to a head (if you can get a spare/junk head) to help with heat dissipation to avoid warping the flange

oiN8io · 05-08-2008, 03:15 PM

I think you will have quite an issue with clearance with 1 7/8" tubing.. you don't want anything that big with a big turbo on these trucks, your spool time will be way to slow. I went with 1 5/8" on my TT headers. But its a totally different ball game for me..

yonson · 05-08-2008, 03:34 PM

When we build our turbo race headers we use 1/2" flanges and stainless, I was going to go this route for my lightning, but materials ALONE was going to run me $1500 @ COST! So I just ended up flipping a set of motorsports...

DallasGT01 · 05-08-2008, 04:41 PM

Quote:

Originally Posted by yonson

When we build our turbo race headers we use 1/2" flanges and stainless, I was going to go this route for my lightning, but materials ALONE was going to run me $1500 @ COST! So I just ended up flipping a set of motorsports...

where the hell did you get that price???

the flanges are 50 max and the tubing is about 100-200 a side...

wow!!!

any pics of those flipped motorsports???

05-01-2008, 01:25 AM	#1 (permalink)
DallasGT01 Just a Slow HD... Join Date: Sep 2007 Location: FRISCO TEXAS!!!! Posts: 1,348 View this user's gallery iTrader: 0 / 0%	Building turbo headers... what metal should be used??? stainless or mild steel?

05-01-2008, 02:58 PM	#3 (permalink)
oiN8io In the CLOWDS!! Join Date: Oct 2005 Location: Albuquerque, NM Posts: 1,828 View this user's gallery iTrader: 16 / 100%	mild steel can still rust even through the ceramic coatings. especially if you live in a very humid climate. I used stainless steel, and if welded properly it will be just as strong as mild. As long as the headers arent what is supporting the weight of the turbo you shouldn't have any problems with using SS.. __________________ 1040RWHP/991RWTQ 25psi q16 TWIN TURBOS... enough said!!

05-08-2008, 11:24 AM	#12 (permalink)
brainbypass mod hotrodder 4 life Join Date: Jun 2003 Location: houston, tx Posts: 1,574 View this user's gallery iTrader: 0 / 0%	also, when you weld the flanges on, you should bolt them to a head (if you can get a spare/junk head) to help with heat dissipation to avoid warping the flange __________________ 03 black lightning - VT powered, tuned by dynojoe.com "And another thing.....when I gun the motor, I want the whole world to think it's coming to an end" -Homer Simpson

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode




Home \| Classified Ads \| Gallery \| Join the Club \| Register on the Forum \| Merchandise \| Supporting Vendors \| Chat

05-01-2008, 04:03 AM	#2 (permalink)
Danny B Registered User Join Date: Jan 2005 Location: at the shop Posts: 489 View this user's gallery iTrader: 0 / 0%	I've gone for mild steel and having them ceramic coated as I feel there less likely to crack in everyday conditions, If it was mainly a race truck then it would be S/S for me!!

05-02-2008, 12:20 PM	#4 (permalink)
DallasGT01 Just a Slow HD... Join Date: Sep 2007 Location: FRISCO TEXAS!!!! Posts: 1,348 View this user's gallery iTrader: 0 / 0%	is 3/8" to thin for the flange and is 2mm thick 304 stainless for tubing to thin?

05-02-2008, 05:26 PM	#5 (permalink)
Danny B Registered User Join Date: Jan 2005 Location: at the shop Posts: 489 View this user's gallery iTrader: 0 / 0%	i done my flanges 1/2" and 2mm is fine for tubing.

05-03-2008, 12:45 AM	#6 (permalink)
oiN8io In the CLOWDS!! Join Date: Oct 2005 Location: Albuquerque, NM Posts: 1,828 View this user's gallery iTrader: 16 / 100%	you will have a lot of problems with warping with 3/8"

05-08-2008, 03:15 PM	#13 (permalink)
oiN8io In the CLOWDS!! Join Date: Oct 2005 Location: Albuquerque, NM Posts: 1,828 View this user's gallery iTrader: 16 / 100%	I think you will have quite an issue with clearance with 1 7/8" tubing.. you don't want anything that big with a big turbo on these trucks, your spool time will be way to slow. I went with 1 5/8" on my TT headers. But its a totally different ball game for me..

05-08-2008, 03:34 PM	#14 (permalink)
yonson Join the Revolution! Paid Member Join Date: Jul 2005 Location: MiSSiSSiPPi Posts: 330 NLOC member #: 2020 View this user's gallery iTrader: 1 / 100%	When we build our turbo race headers we use 1/2" flanges and stainless, I was going to go this route for my lightning, but materials ALONE was going to run me $1500 @ COST! So I just ended up flipping a set of motorsports...