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Home > Help Needed / General Tech Chat > turbo chamber enlarging head work

battleroc

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145 Posts
Member #: 5620
Advanced Member

Dunstable, Bedfordshire

24th Feb, 2010 at 06:55:08pm

Hi there

i have 2 heads
1 a spi head and 1 a metro turbo head

i need to lower the compression so i need to have my head chambers enlarged

what is a better head to use on a turbo set up?
as i have had 2 people say diffrent things

saying spi is better as its unleaded already?

also any advice on people/places to do the work

cheers
Dan

Joe C

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Carlos Fandango

Burnham-on-Crouch, Essex

24th Feb, 2010 at 07:16:48pm

the unleaded point is a good point.

the turbo head will have sodium cooled valves.

I would go with the SPI head and stick a set of stainless exh valves in it.

On 28th Aug, 2011 Kean said:
At the risk of being sigged...

Joe, do you have a photo of your tool?



http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1

https://joe1977.imgbb.com/



Turbo Phil

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4641 Posts
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My sister is so fit I won't show anyone her picture

Lake District

24th Feb, 2010 at 07:39:04pm

The heads are essentially the same. I'd stick some bronze guides & stainless ex valves in the SPI head, job sorted !
If you're interested I can do any work you may require.

Phil.

WWW.TURBO-MINI.COM


battleroc

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145 Posts
Member #: 5620
Advanced Member

Dunstable, Bedfordshire

25th Feb, 2010 at 01:54:00pm

hi guys

cheers for the info...but is it not true bronze guilds and stainless valves don't last though?

(turbo Pete i sent a email on costs)

BENROSS

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9812 Posts
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Resident Cylinder Head Modifier

Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem

25th Feb, 2010 at 05:40:19pm

yes its not true. .......... they last
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