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14 Posts Member #: 2352 Member staffs |
26th Mar, 2008 at 09:20:33pm
is there a specific way to measuring the chamber volumes in the head and what do they need to be for a turbo.is there any way of reducing them if they are to high.thanks |
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110 Posts Member #: 1657 Advanced Member wirral |
26th Mar, 2008 at 09:26:43pm
this has been discussed numerous time, please take time to use the search function. On 15th of Apr, 2007 at 09:08pm Vegard said:
What the fuck is that on the rear of the car? One of the most stupid things I've ever seen. Rest looks nice. 10.5 psi no idea how many banannas |
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 4641 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
26th Mar, 2008 at 09:30:23pm
You need to accuratley measure the volume using a burette. Stock volume is usually around 21.4cc. On a Turbo motor you are generally trying to lower the compression to allow you to run more boost, so enlarging the chambers is what you'd want to do. On a NA motor you usually want to raise the compression, in which case you skim the head to reduce the chamber volume and raise the compression. |
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 3184 Posts Member #: 628 Post Whore a LIL fishing village on the coast - Newcastle Upon Tyne |
26th Mar, 2008 at 11:25:19pm
I have 28 cc chambers with stock turbo pistons and i think my CR is 8.4:1. as per Phils reply but i used a syringe, anything that can acurately measure volume
On 17th Aug, 2009 Jay#2 said:
I doubt I'll be dipping into the 13's like you did though! |
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 510 Posts Member #: 1592 Smart Guy! mainland europe near ze germans |
27th Mar, 2008 at 02:20:52am
nowadays i just set up the head dead level (using a level) and don't faff around with a plexi plate with holes in it.
Edited by Sir Yun on 27th Mar, 2008. That sir, is not rust, it is the progressive mass reduction system
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