jonny gav

iTrader: (1)

David- think its the big thick ring of weld thats stopping them leaking

mind you, its a pain in the **** to get them back on when welded

mark@wrx

The problem with Abbylad's headers is that when the uppipe and manifold are unbolted, the faces are parallel. But the bolt holes are about half a hole out. Thus when you bolt them together, the faces are pulled out of square and it leaks on the top side. Also when they are unbolted there is a 5mm gap between the two faces.

[Edited by mark@wrx - 9/25/2003 11:09:40 PM]

Abbylad

iTrader: (4)

that what i wanted to say, just couldn`t work out how to say it.

Trout

iTrader: (1)

Gruppe-S headers being sorted to mate the flanges correctly - grinder and then deburred...



Headers being used in anger...



When the headers were removed there was no evidence of leaking - took over an hour of work in a well equipped shop to sort!!

Rannoch

Andy.F

David

I hope they are sorted but my headers only started to leak after a few hard launches and a few heat/cool cycles. Not sure if it was the vibration or a few expand/contract actions that worked the joint ? Are you using a flexy uppipe ? I'm not sure I'll ever have 100% success with the rigid one It's just started leaking again after approx 1500 miles.

Andy

Fangoria

iTrader: (1)

Is that the back of Wallis's garage!!!

Hahhh cant be - too clean and tidy.................

T-uk

do you guys ever check the slip-joints?.

part of my weekly routine at the moment is checking these headers for leaks. I had left the slip-joints unwrapped to check them. after all the lessons learned on here and with trying john banks earlier set I have, touch wood , not had any flange leaks yet.

I went to finish wrapping the slip joints today , however , when cold one of my slip joints has started blowing .the dirty scaby **** , if it aint one bit it's another. once the headers are hot they seal but for how long.

hopefully ,if there is a phase 3 gruppe-s haeder, they will have a flexi where the slip joints are.

DeanF

iTrader: (1)

What do you think then ??? Worth purchasing or not with all the hassles ?? Plan was to add front mount afterwards then remap.
Thanx in anticipation.
Dean
MY94 UK Turbo

[Edited by DeanF - 9/27/2003 5:27:18 PM]

Trout

iTrader: (1)

Andy,

I am using a solid uppipe - but as you know it is not to the normal position - it is to the Garrett. May have to work out a flexible bracket as the uppipe is solid.

Headers are wrapped now - and with final mapping they will go through quite a few heat cycles on the dyno.

In terms of performance - well from the results so far - only up to 4000rpm - I can vouch that they are very good.

Rannoch

T-uk

worth it if you are chasing the highest possible peak figures.
worth it if you want to be able to run lower boost to get higher boost with standard header results.
worth it if you want your car to keep pulling closer to the limiter.
worth it to make a small turbo pretend it's bigger.

worth it for a good back road basher-well I am still not convinced see edcases thread.

thought I should add edcases thread.

[Edited by T-uk - 9/30/2003 7:06:59 PM]

DeanF

iTrader: (1)

Done a few miles on these now & as below, They are blowing on the topside !!!
Currently using the composite gasket, I have a steel fire ring type, Shall i purchase another one & fit two or Just try one steel gasket first ???
Cheers
Dean

mark@wrx

I ended up using 3 gaskets and this still didn't seal it properly. Maybe a lesson there as to why they are so cheap!

DeanF

iTrader: (1)

Just fitted the Steel Fire ring gasket & the Composite type, as when un-bolted there was @ least a 5mm Gap to fill, @ the Mo it is not blowing (was before @ tick over) Will give it a blast tomorrow & then see if it still holds !!!
Going to fit two steel fire ring gaskets back to back as mentioned by David Wallis next i think..
Dean