Old Jan 5, 2006 | 06:30 PM
  #39  
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Mark Shead
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From: Marlow Bucks
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Originally Posted by leecavturbo
Originally Posted by PJ ENGINEERING (PROX)
Originally Posted by leecavturbo
Originally Posted by PJ ENGINEERING (PROX)
Originally Posted by leecavturbo
Originally Posted by chip-3door
That was a standard gasket yes.

Should be fine at those boost levels though, ive run them with more cylinder pressure than that without failure in the past.

I think simon@SECS may possibly be onto something with the overtorqued theory, ive seen them fail because of that before.
was not std gasket chip " Spesso " 1.9mm
I used to run the swindon one on mine as the std composite one used to always blow.
Spesso was quoted to me as good but lets not blame the gasket me thinks something else to blame
I think you have the same problme i had back in 1997 not much info on Turbo LET/EX Engines unlike the Cosworth YB engine. I bult a very strong LET with a T3 on it and the guy who mapped it melted it on the rollers, I just dont think a set up on the rolling road is the right way to try and map any turbo car.
my opinion was, if mapped on rollers then it will be safer on the road ? becus in the dyno the load can be greater than that on the road , and the airflow in the cell is less than on the road , therefor more cooling to the intercooler, but i just thought that, what about air pressure to the airfilter, if in the cell there could be less ambient air pressure for intake system to inhale but on the open road plenty making a weak afr ? ? ?
In some ways you are correct but not in the most important heat and cyl temp,
The harder the car is ran up through the gears the higher cyl temp there is, You cannont duplicat this buy just doing power runs on the rollers.

Mark
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