head gasket

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tim_s
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Post Wed Mar 15, 2006 6:57 pm

my 2.1 will have an 86.6mm bore, the biggest bmw headgasket circa 86mm, do you guys reckon i should go for a custom one? the engine shop reckon it's a close call and that a standard one might work as long as it doesn't get pinched much inside the cyl.
.6mm diameter isn't a lot, but i want to do things right. Where might i be able to get a custom one? could the standard one be modded slightly?
current thinking is to try a standard one and see how i go, i'm not over the moon about having to do it again if it doesn't work well and having the car unusable until sorted.
opinions/advice etc appreciated! this engine is such a headache.
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e30_Turbo
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Post Wed Mar 15, 2006 9:33 pm

Ferriday engineering will make you a custom one but they aint cheap and normally copper, although they may be able to source others. I'm no expert but most opinions on copper is it's easy to mess up, so not good for me for sure :D

Other than that this country sucks for uprated HG for e30's, mine are coming in from either US or Sweden, just trying to persude PPF to let me have one of there special ones :cool:

I'll ask them tomorrow for you, will let you know.

Mark.
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d6dph
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Post Wed Mar 15, 2006 9:45 pm

might be worth tying cometic. quite highly regarded with the ford drivers

http://www.cometiceurope.com/index2.htm
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tim_s
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Post Wed Mar 29, 2006 12:13 pm

ah, interesting. cometic lsit 86 and 85mm ones in their catalogue, i wonder whether i can go bigger. i might just try an m44 gasket on for now and see how it goes.
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2.1 318is, MS, LPG. 200bhp, 175ft/lbs GONE!
Boxster, e46 m3, e36 sport touring and alpina B3 3.0
Ant
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Post Wed Mar 29, 2006 12:17 pm

std item should be fine dude, the combustion chamber is still shaped for the stock bore sizes anyway I assume ?

as long as there's enough meat in the fire ring, you'll have no issues Tim
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tim_s
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Post Wed Mar 29, 2006 12:53 pm

ah cheers ant. yeah the combustion chamber is still standard dia.
i've never used a HG thats not bigger than the bore before, the engine shop weren't 100% either. is there a risk of it getting pinched and squeezed out a bit into the bore - if you see what i mean (ok, not the greatest explanation, but hopefully you get the idea!)? i guess its only 0.6mm dia. different.

on another totally unrelated note, ant, you any ideas on the last email i sent you (easytherm MS stuff again, think i'm asking for trouble sharing sensors with the motronic...)?! sorry to be a pita!
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2.1 318is, MS, LPG. 200bhp, 175ft/lbs GONE!
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Ant
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Post Sat Apr 01, 2006 2:33 pm

Email sent with regards to the easytherm Tim :cool:
Product Development and Endurance for Delphi.

Original performance chips, original works not unlicensed copies :D Email FTW
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tim_s
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Post Sat Apr 01, 2006 3:42 pm

cheers for that ant - have bodged it now though and all is fine!
actually have just sent you a mail, cheers for your help fella, you've been well helpful. its all coming together quite nicely time-wise as the engine's just about ready to go in now. :cool:
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2.1 318is, MS, LPG. 200bhp, 175ft/lbs GONE!
Boxster, e46 m3, e36 sport touring and alpina B3 3.0
Ant
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Post Sat Apr 01, 2006 4:23 pm

Mail replied to Tim !
Product Development and Endurance for Delphi.

Original performance chips, original works not unlicensed copies :D Email FTW
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tim_s
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Post Sat Apr 01, 2006 5:16 pm

cheers ant, you're a star. replied again, sorry its a bit of a steep learning curve this!
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2.1 318is, MS, LPG. 200bhp, 175ft/lbs GONE!
Boxster, e46 m3, e36 sport touring and alpina B3 3.0