R19KET

Well mine went. Cracked most of the way round, leaving just 1/2" hanging on. Had to drive 100+ miles with no boost....Great fun..NOT.

It's pretty common.

Mark.

BugEyed

Mark

Thanks for that! I'm glad I didn't opt for the standard sort when de-catting my MY01. However, I'm still concerned by the lack of a flexible joint in mine - I guess that I'll just have to keep my fingers crossed.

Duncan

john banks

David did you use a flexible extension for your drill? We are ordering a larger Tung Carb ball cone nose or whatever it is called from RS. Were all the bits easy to get to?

David_Wallis

My bits are quite easy to get to thanks!.. I used a die grinder so didnt use a flexible extn.. i would use one though if you are using a drill.. You dont need to do the whole thing though... If you have a look at my fmic thread, I think it is in one of the photos on the bench half done... I have some other photos that someone emailed me, so Ill forward you these tonight... You will use the cutter for other things as well!!

Might not be as good in a drill as I die grinder runs at 10,000rpm possibly higher...

David

john banks

Thanks, I'll try and borrow one or buy one. johnbanks@dsl.pipex.com for any piccies - no worries ADSL if they are HUGE

iain atkins

John

I did this when my pistonslap was being sorted out. I used a die grinder for compressor and it took about an hour, inc the uppipe.

It *seems* to have made it much more eager, with no lag on gear changes and more punch when the accelerator is floored. as everyone has said it is sooo obvious what needs to be done when the manifolds are off

Like you John I have the Magnex twin downpipe as well.


Iain

Evildead

Even if it's obvious, i'd love to see the pics since i tend to do stuf myself..

christer@torpet.ac

-Christer

[Edited by Evildead - 4/30/2002 3:08:04 PM]

David_Wallis

John... unsure if you can get electric ones?? I would lend you mine but postage there and back probably cheaper to buy one.. only £30 quid or so from www.machinemart.co.uk mine runs from my compressor.. I havent finished doing mine so will post some pictures... Have got to take downpipe off by the looks of it to get the turbo up-pipe off... so im going to knock up a downpipe at the same time...

David

David_Wallis

you need to run a weld around the up-pipe before you can flow that though.....

David

David_Wallis

You both have mail.

David

David_Wallis

Here are some pics.. one was taken with night shot for a laugh.. have brightned them up in photoshop...

Some pics of die grinder and ends...

Please Note I have only spent 5 - 10 mins on these so they are not done!!















David

Evildead

Terrific, looks almost the same as on my good ol XT 10 years ago LOL...
Grinding time

Evildead

Are you guys using original gaskets when refitting
your ported headers?

David_Wallis

Mine are in good condition so I was going to, but its not the recommended solution!

David

Evildead

Yes, still buying OEM gaskets is the way to go?

David_Wallis

Yes.. as you are only enlarging the port size to the size of the gasket..

David

Evildead

How does it look inside the head David? hehe
I mean, can something be done there, but i suspect one should
not fiddle there more than just look at the ports?

David_Wallis

I wouldnt entertain it without taking the head off.. Dont want to get bits of metal in the engine or turbo..

David

Pete Croney

Finally got some pics done of the up pipe. This is a WRX 01/02 version, with the boss for the EGT sensor. The top flange holes are threaded for the studs that hold the turbo.





When you are flowing the standard manifolds, there is no point removing metal from the intermediate connections (unless they are distorted) as the internal diameter is very small right through. You would end with a balooning at the gasket and this would be worse than just leaving the diameter uniformly small.

You should open out the holes in the flanges, that bolt to the heads, so that there is a smooth transition from the gasket size down to the internal manifold bore size.

You can tidy up the lower end of the up pipe but I would avoid welding it. It is a trombone type arrangement and if it is welded it will definitely crack. The standard one is designed like this, as it is a mixture of cast iron and mild steel. Anealed stainless is much more flexible.

David_Wallis

pete, what diameter is the pipe?

David

Pete Croney

50mm. The standard pipe is 36mm in and 39mm out.

The entry into the turbo is 47mm at the gasket, before it tapers down.

David_Wallis

Cheers.. Youve got a plug in Revs today aswell.. saw it in whsmiths... didnt buy it though! So has scoobynet thinking about it...

David

dowser

Hi Pete,

Have you fitted one of these to the old shape cars? Any comments on differences?

Thanks
Richard