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Vegard

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7765 Posts
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I pick holes in everything..

Chief ancient post excavator

Norway

15th Apr, 2005 at 08:12:22am

Last night I spent hours porting the exhaust manifold. But It also seems as the turbo exhasut elbow has got a small diameter compared to the Maniflow downpipe. How big is this pipe internally?? I'll need to open the elbow to suit.
Thanks.

On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem.

SumpNut
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Post Whore

Milton Keynes

15th Apr, 2005 at 11:27:06am

Yea the elbow is definetly smaller, but then on the metro the whole exhaust system was smaller.

I dont have my old T3 parts anymore, but i remember i took loads out of the elbow near where it joins to the downpipe. Sorry i dont have the figures

Tom Fenton
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Rotherham South Yorkshire

15th Apr, 2005 at 01:58:15pm

I was feeling kind so got the tape measure out just now while I was in the garage.

Downpipe ID (Maniflow type) 1 7/8".

Turbo Elbow ID is between 1 5/8" - 1 11/16". Could not get a better measurement as my spare turbo is at the back of a cupboard under a load of stuff I couldn't be bothered to move to get it out and measure properly.

In any case, there is certainly scope to enlarge the elbow somewhat to match the downpipe.


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On 28th Nov, 2016 Rob Gavin said:
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Doodmeister

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Alberta, Canada

15th Apr, 2005 at 03:32:43pm

Just measured the turbo elbow also and get 41.7mm ID give or take a nats ass.

Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe.

Vegard

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7765 Posts
Member #: 74
I pick holes in everything..

Chief ancient post excavator

Norway

18th Apr, 2005 at 03:03:36pm

I'll have the elbow opened to 47mm.

After doing this it'll spin in fourth off boost at a guess. This in addition to the Bodge it racing power valve mod should seriously get the brick going.

On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem.

turboestate

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368 Posts
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durham area

18th Apr, 2005 at 08:15:34pm

with making my own maifolds the down pipe i made is 51mm right from the turbo to the back box it has no trouble at all spining up right from 2k through the gears *happy*

love that straight cut scream!!!
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Vegard

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7765 Posts
Member #: 74
I pick holes in everything..

Chief ancient post excavator

Norway

29th Apr, 2005 at 07:57:53am

And here is the end result

On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem.

Jimster
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455bhp per ton
12 sec 1/4 mile road legal mini

Sunny Bridgend, South Wales

8th Jun, 2005 at 03:21:31pm

turbo estate, have you got any photo's of your downpipe and elbow?

Team Racing

On 15th May, 2009 TurboDave said:
I think the welsh one has it right!


1st to provide running proof
of turbo twinkie in a car and first to
run a 1/4 in one!!

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turboestate

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368 Posts
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Senior Member

durham area

10th Jun, 2005 at 08:50:13pm

yes ill dig them out i have no elbo as my turbo is situated above the bell housing and running an external 35mm wastegate exaust is 51mm id from turbo to back box and then 2x51mm outlets.*wink*

love that straight cut scream!!!
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/___|_____
_ (@)___(@)
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