head gasket for a turbo

Mon Aug 28, 2006 11:35 am

hey guys i finished my 325i turbo the other day and it went like a drem until the head gasket went was thinking of getting a thicker one or sum sort of performance one does anyone no where i can get something along these lines? and is there anything else i should replace well im at it? thanks

Mon Aug 28, 2006 11:54 am

get some 12.9 grade non stretch head bolts dude, best upgrade on offer to solve the H/G issue.

TBH mines run 15+ psi without issue on the stock H/G, what boost were you running ?

to drop the C/R use the thicker H/G from the stealers or push the boat out on an MLS gasket from the US.

HTH

Btw, lets have the spec then

Mon Aug 28, 2006 1:11 pm

How much would the thicker H/G from the dealers drop the CR by?

What about the copper H/Gs from Ferriday Engineering? (I think its Ferriday)

Mon Aug 28, 2006 1:30 pm

when i had my cossie running best gasket i could get was a cometic, but may be a diffrwent story with a beemer

Mon Aug 28, 2006 7:44 pm

mines a 325 cab with a homemade kit using a cast manifold a t3 and a modified cossie intercooler the engine is standard i got abit carried away an ran about 8 psi i think it was abit much and the gasket was on its way anyway so i thought id try and get a thicker one do you have any contacts? what are the copper ones like?

Mon Aug 28, 2006 7:46 pm

where can iu get the head bolts from and how much are they?

Mon Aug 28, 2006 11:03 pm

I use ARP bolts and 3.5mm MLS gasget in my m50 turbo. www.pure-pf.com and the guys can speak english in there so mail them.

Mon Aug 28, 2006 11:20 pm

is the turbo diesel one any better? i assume it would fit, unless the bore is different?

Tue Aug 29, 2006 12:22 am

cometic do MLS gaskets for M20 engine, you can also get block o-ringed and heald welded if your running lots of boost

Tue Aug 29, 2006 8:45 am

Basil,

I can get the 12.9 head bolts for a decent price if needed

Also IIRC the head gasket was about Ã‚£65+vat.

HTH, Mark.

Tue Aug 29, 2006 12:39 pm

well from 360bhp cossie power i can reccomend cometic gaskets

Tue Aug 29, 2006 8:02 pm

cheers for you help guys il make some phone calls and see what i can sort out i just want to get it running agen as it went so well!!

Tue Aug 29, 2006 8:33 pm

what boost are you running dude if its not over 15psi and you blown headgasket you got tuning issues i think

Wed Aug 30, 2006 1:52 am

ARP don't make head studs for M20's however Raceware make head studs and main studs, they quoted me $250 and 210USD + shipping.

If you use a high quality head gasket (Felpro or similar) and head studs or even 12.9 grade bolts it should be good to 15-20psi boost with good tuning.

The problem I see with using MLS is the sealing between block and head onto the gasket if you don't O-ring, you can get leaking issues. Also by using a MLS, something else in the engine will become the next "weak point" so to speak, so instead of blowing a HG, you might cook a piston.

Wed Aug 30, 2006 4:44 pm

you can get ARP studs for M20's they are available at www.pure-pf.com send andreas a email and he will help you, he speaks english. also you cant o-ring and use a MLS gasket the o-ring wont bite into the steel, MLS will not leak if installed correctly with good surfaces, can spray it with gasket spray and it defiabtly wont then - WillG

Wed Aug 30, 2006 4:50 pm

SamG wrote:you can get ARP studs for M20's they are available at www.pure-pf.com send andreas a email and he will help you, he speaks english. also you cant o-ring and use a MLS gasket the o-ring wont bite into the steel, MLS will not leak if installed correctly with good surfaces, can spray it with gasket spray and it defiabtly wont then - WillG

Yes but have you seen how much?? They're VAT is rediculous!

I have a friend who has spent over Ã‚£9k with PPF and even he couldn't get the studs cheap, I have the quote at home if anyone wants to see it.

Mark.

Wed Aug 30, 2006 6:07 pm

Ive never had anything added to prices on the webshop, they are expensive on there tho, atleast shipping etc is alot cheaper then it will be on the raceware studs, im using 12.9 bolts myself with o-rings done by QEP who have done loads of them

Wed Aug 30, 2006 8:43 pm

i can vouch for the work i've seen from QEP. lovely stuff.

Thu Aug 31, 2006 1:35 am

ARP do not make head studs specifically for M20, the ones supplied by PPF .etc are just head studs that fit an M20. I have contacted ARP directly and they've confirmed this for me.

Thu Aug 31, 2006 5:27 pm

Yeah well they are ARP and they fit in a m20 perfectly, doesnt matter what ARP say