EMP

STD Tuning Engine EMP

EMP

EMP

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~~ForcedInduction~~

Banned

3,628

08-12-2009, 04:36 AM #1

This idea just popped into my head. Since the manifolds are off the 240, I should make a port cover plate, attach my air pressure regulator and test what psi the exhaust valves naturally pop open.

The current belief is that 30psi is the maximum safe exhaust manifold pressure.

This post was last modified: 08-12-2009, 04:36 AM by ForcedInduction.

ForcedInduction

08-12-2009, 04:36 AM #1

This idea just popped into my head. Since the manifolds are off the 240, I should make a port cover plate, attach my air pressure regulator and test what psi the exhaust valves naturally pop open.

The current belief is that 30psi is the maximum safe exhaust manifold pressure.

tomnik

Holset

587

08-12-2009, 05:22 AM #2

Why do you need this info?
you will always have an (heavier ?) influence of kinematics that will cause a delay in valve closing.
The highest engine loads come with vanes open (less restriction).

Tom

tomnik

08-12-2009, 05:22 AM #2

Why do you need this info?
you will always have an (heavier ?) influence of kinematics that will cause a delay in valve closing.
The highest engine loads come with vanes open (less restriction).

Tom

~~ForcedInduction~~

Banned

3,628

08-12-2009, 06:16 AM #3

Quote:Why do you need this info?

To find out the point where upgraded springs might be needed.

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ForcedInduction

08-12-2009, 06:16 AM #3

Quote:Why do you need this info?

To find out the point where upgraded springs might be needed.

Attached Files

Image(s)

tomnik

Holset

587

08-12-2009, 06:24 AM #4

do you believe you already have issues or just for the future?
Wouldn't the issues come from high revs rather than backpressure?

Tom

tomnik

08-12-2009, 06:24 AM #4

do you believe you already have issues or just for the future?
Wouldn't the issues come from high revs rather than backpressure?

Tom

~~ForcedInduction~~

Banned

3,628

08-12-2009, 06:48 AM #5

(08-12-2009, 06:24 AM)tomnik do you believe you already have issues or just for the future?

Mainly to make use of already having the manifolds off.

Quote:Wouldn't the issues come from high revs rather than backpressure?

Backpressure doesn't help the situation.

ForcedInduction

08-12-2009, 06:48 AM #5

(08-12-2009, 06:24 AM)tomnik do you believe you already have issues or just for the future?

Mainly to make use of already having the manifolds off.

Quote:Wouldn't the issues come from high revs rather than backpressure?

Backpressure doesn't help the situation.

tantank79

T3-45

109

08-12-2009, 06:23 PM #6

DO IT!!

-Brian

1983 300TD
1982 240D
1981 280TE

tantank79

08-12-2009, 06:23 PM #6

DO IT!!

-Brian

1983 300TD
1982 240D
1981 280TE

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