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 26 Posts Member #: 5393 Member Belfast |
28th Feb, 2009 at 11:23:56pm
hello everyone, just got my metro t3, manifold, carb and a t2.
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 19 Posts Member #: 5378 Member Bognor Regis west sussex uk |
1st Mar, 2009 at 01:28:22am
welcome to the site mate, i joined 2 days ago and ive found the site and members to be very helpful. good luck with your project. Bwaarrrrp, tsch. |
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26 Posts Member #: 5393 Member Belfast |
1st Mar, 2009 at 05:21:39am
cheers dave!
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Site Admin  6293 Posts Member #: 1 The boring bloke who runs this place. Berkshire |
1st Mar, 2009 at 08:17:05am
Hello matey - enjoy your stay |
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 16540 Posts Member #: 4241 King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner Rotherham, South Yorkshire |
1st Mar, 2009 at 08:25:22am
Hi there On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it 
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26 Posts Member #: 5393 Member Belfast |
1st Mar, 2009 at 08:47:03am
no advice fellas?
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 (2)[/url] by [url=https://www.flickr.com/photos/150672766@N03/]Rod Sugden[/url], on Fli) 5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
1st Mar, 2009 at 08:59:38am
On 1st Mar, 2009 mikko said:
no advice fellas? Patience...... :) On 1st Mar, 2009 mikko said:
,,,,,,,or bleed valve, how does the bleed valve do this? Basically the outlet pressure of the turbo (ie, "boost pressure") goes down a small tube/hose to the actuator and when the pressure reaches a certain value - determined by the spring in the actuator - the actuator starts to open the wastegate. A bleed valve is essentially a Tee of this tube/hose that allows an adjustable amount of the air to escape. Because the tube/hose is small, the escaping air causes the pressure received at the actuator to be lower than the actual pressure being sent, so the actual pressure has to go higher before the residual pressure at the actuator is high enough to operate it... Hope that makes sense. Schrödinger's cat - so which one am I ??? |
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26 Posts Member #: 5393 Member Belfast |
1st Mar, 2009 at 09:26:48am
right so these devices are restrictors and without them the enhgine would just boost till it blows?therefor for me to run a boost of 10psi i would need an actuator with with a tolllerance of at most 10? and a bleed valve could fool the actuator into running more than 10?
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5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
1st Mar, 2009 at 09:56:43am
On 1st Mar, 2009 mikko said:
right so these devices are restrictors and without them the enhgine would just boost till it blows? No, the wastgate is what limits boost - the actuator opens the wastegate (which is on the turbine side) and the turbo slows down. EDIT - wastegate on older turbos, other things like variable guide vanes on more modern ones but the principle is the same, control the turbine speed... On 1st Mar, 2009 mikko said: Without a bleed valve you need an actuator of the pressure rating that you want - so a 10psi actuator to achieve 10psi boost.
therefor for me to run a boost of 10psi i would need an actuator with with a tolllerance of at most 10? On 1st Mar, 2009 mikko said: Yes.
and a bleed valve could fool the actuator into running more than 10? On 1st Mar, 2009 mikko said: Only to a certain extent - it's a very crude way of doing things - once you start bleeding more air away than the amount going to the actuator, it will become erratic, slow to operate and generally unreliable - probably giving spikes that are bad....
just reading over what i've written realised i can just get a bleed valve to fool my actuator into running whatever boost i set it at if my thinking is correct? Edited by Rod S on 1st Mar, 2009. Schrödinger's cat - so which one am I ??? |
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 6549 Posts Member #: 1149 #1 Basshunter Fan Force Racing ICT Dept Manager Miglia Turbo Am frum Yokshyer tha noes! |
1st Mar, 2009 at 11:00:27am
Howdo cocker 1/4 Mile 14.3secs 96Mph Terminal 10psi of boost.
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26 Posts Member #: 5393 Member Belfast |
1st Mar, 2009 at 11:17:02am
this has been the hardest thing for me to grasp inderstanding in years, i'm usually good at this sort of thing, but i'm getting there, thanks for the help
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