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turbo manifolds - what size primaries?? 

 

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 Post subject: turbo manifolds - what size primaries??
Posted: Mon May 26, 2008 9:51 pm 
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hi guys,

i have the header plates and turbo flanges, now i have some gueries about what size primary pipes to use? and what thickness mild steel.
(for 5 litre windsor)...

cheers!!

 

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Posted: Mon May 26, 2008 11:09 pm 
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1 1/2"- 1 3/4" would be fine 1 3/4 would be i deal though, depends if you are doing them in a log style or tuned length too. Bit hard with 1 3/4" for tuned length..

Steam pipe bends and pipe would be fine, 3-4 mm wall is fine, give the joins a reasonable prep when welding too.

Also a brace along the exhaust manifold flange while welding will help reduce distortion too, an Old E7 head would be perfect. Just bolt on the manifold to the head and weld away, if you can find an old head..

 

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Posted: Mon May 26, 2008 11:15 pm 
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excellent! cheers mate :lol: luckily i have the e7's kickin around off the engine i stripped.. btw, where can i get steam pipe bends from?? being a little town with one exhaust shop, and a big fat c**t running it, i'll most likely have to order it over the net....if indeed someone sells them...

 

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Posted: Mon May 26, 2008 11:21 pm 
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Any steel supplies joint.

Midalia, One steel, smorgan, etc ,etc

I wouldnt go to an exhaust shop, they charge an arm and a leg, then take a part torso too.

 

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Because of Beer, Thirst is a Beautiful Thing!

'95 EF XR8 auto, Advance headers, 3" exhaust, Cobra manifold, BBK 75mm throttle body , 80MM Marauder MAF, Vortech V2 T Trim , 307 rwhp, 405 ft/lb 13.2 @ 105 MPH

Now N/A (permanent Lag) - AFR 165's, Comp XE270 cam, 1.6 RR - 269 rwhp 14.1 @ 102mph.

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Posted: Mon May 26, 2008 11:24 pm 
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i would go 1-1/4, for high hp like 600+rwhp i would go 1-1/2.

any bigger that 1-1/2 is a waste of space

 

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Posted: Mon May 26, 2008 11:27 pm 
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GOOD LUCK getting steam pipe and welds inside manifold bolts...
I have 1 1/2 and over 700 h.p at the engine..
They all use flipped std manifolds on Mustangs and most are modified [as in fitting 1 5/8 shorties] before turbo fitted..
1 5/8 would do fine, you'll have to square off at flange to clear bolts.. Btw at 16 Lb boost I have 2 to1 back pressure which is quite o/k..
15 Lb boost and 28 Lb back pressure...
Mine are unequial length ceramic coated .. to 2" pipe before T3 flange..
Here's a pic of one side..
Image

 

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Last edited by EBXR8380 on Mon May 26, 2008 11:36 pm, edited 1 time in total.

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Posted: Mon May 26, 2008 11:32 pm 
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cheers for the reply's...

i'll have to look into it tomorrow. i can get them welded up for free through a mate, so rather than hack apart some perfectly good extractors, i thought i may aswell give making some ago...

 

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Posted: Tue May 27, 2008 11:11 pm 
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theres these on ebay

http://cgi.ebay.com.au/Windsor-V8-Twin- ... dZViewItem

 

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Posted: Thu May 29, 2008 8:56 pm 
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they look like mustang manifolds. does say they would fit upto AU's, but i doubt it with large turbos...

 

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Posted: Fri May 30, 2008 8:24 pm 
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does anyone have any pic's of there twin turbo set up's, specifically the manifolds? so i can get a better idea of how to fabricate them.

thanks

 

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Posted: Fri May 30, 2008 11:01 pm 
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Does this help ??
Image
Other side..
Image

Depending on intercooler design, you need this 2" crossover pipe for cold side of turbo...
Image
Another angle..
Image

I moved compressor over to idler pulley to allow clearance on left side...
Note crank sensor on front pulley.. It jsu made it through garage / patio door !!
Image
The oil return pipes are stainless flex , no chance of buring them...

 

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As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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Posted: Fri May 30, 2008 11:54 pm 
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thats awesome mate! did you have any issue's with power steering pump or alt? and i dont spose you have anymore pics?? as i dont have an engine bay to work from, getting these manifolds correct may be tricky.
i've got some old e7 heads propped up to the right angle. i'm going to see how that turns out! with alt and pwr steering pump on there as well.

thanks for your help, its always extremely useful!

 

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Posted: Sat May 31, 2008 12:46 pm 
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Its much easier to run a SINGLE turbo..
Then there's no issues with air con, compressor...
The alterrnalor is the original, had no issues..
Being ceramic coated keeps much of the heat in..
Its the compressor that is close to power steering pump and alternator...
Used braded steel hose for low pressure return on power steering ... I fitted insulation over collector on manifold where most the heat is..
Check out www.turbomustangs.com
Especially this section..
http://www.theturboforums.com/smf/index.php?board=15.0
There's a few Aussies in the blown carb launge too...

 

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As in ZOOM 126 edition
331 Dart block,3.25/ 4340 steel crank, Oliver rods,TFS ported track heat heads, TFS track heat inlet Twin SC61 turbo's
Project 1UZ-EF has started.. S475 Turbo 4.0 V8 Mustang Celica.....

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 Post subject: Welding/Fabrication - Discussion of Welding and Fabrication
Posted: Fri Jun 06, 2008 9:48 am 
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Mackagtho wrote:


These turbo headers on ebay would be a steal(steel) at that price AU $385.00

material alone would of cost that much.

To get a better perspective of what people do in fabricating turbo headers and merging collectors have a look at this forum , you might have to join.

http://www.honda-tech.com/

Welding/Fabrication - Discussion of Welding and Fabrication. http://www.honda-tech.com/zeroforum/53 use their search facility some very useful information in this forum even tho its all about Honda's

Happy reading

cheers

 

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