Dump Valve delete...
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Dump Valve delete...
I have been chatting to some people about running a dump valve delete set up. What are the pros and cons? Some say it's the best way and some say it's bad as it will stop the turbo stall between gears and can damage the motor. How do most people run this scenario in the 400-450bhp region with a FMIC?
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Hi there
Pros is just chatter of turbo which will give you,nothing more and nothing less
Cons depends on turbo,this can damage the turbo(older VF range or VF range in whole),can slow spool up time
If you are running the Garrett based turbo,you will be OK run DVless,as i said depends on turbo and from this i would go,we are running the MDX321T DVless.
Jura
Pros is just chatter of turbo which will give you,nothing more and nothing less
Cons depends on turbo,this can damage the turbo(older VF range or VF range in whole),can slow spool up time
If you are running the Garrett based turbo,you will be OK run DVless,as i said depends on turbo and from this i would go,we are running the MDX321T DVless.
Jura
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Ah that's great as no anti lag is being used. So just to clarify.. The pipe which returns to the turbo in let pipe where the standard re circ is blanked off, the T piece off the fmic pipe work is blanked off and the little pipe that connects to the bottom of the inlet manifold (under the throttle body) which normally connects to the dv is connected to a boost sensor this is fine?
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Ah that's great as no anti lag is being used. So just to clarify.. The pipe which returns to the turbo in let pipe where the standard re circ is blanked off, the T piece off the fmic pipe work is blanked off and the little pipe that connects to the bottom of the inlet manifold (under the throttle body) which normally connects to the dv is connected to a boost sensor this is fine?
Here is our engine bay
Jura
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That's great! There is a turbo inlet pipe to go on with no ports off of it do it's just one big silicone pipe that is to be used with a RCM catch can. That blue pipe you have coming out the intercooler pipe from the throttle body is blanked off yes?
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About the catch can,we are running custom catch can,i would suggest baffled catch can(not sure if Clive@Mad Hammer still selling them,contact him,we are running similar what Clive fabricate them)
Yes this blue pipe is blanked off,now this outlet for DV has been welded off
Jura
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With right setup you should be making around 450bhp on V-power and 480bhp on 20% methanol
Jura
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That's fair enough it's just I know someone who can get them cheap was just a though. The RCM system has already been taken care of. So can't the stock ecu produce more than 1.55 bar of boost with a MD321T?
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With MDX321 we are running 1.7bar and we are making 452.9bhp on V-power and 490bhp on V-power and 20%methanol
Jura
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I am using the earlier Md321t without a DV and have done over 50000 miles on it without problem.
426bhp / 462 ft/lbs.
426bhp / 462 ft/lbs.
Last edited by burns; 26 March 2012 at 09:37 AM.
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Yes can produce more above 1.55bar,but problem is can't control boost above 1.55-1.6bar.Due this i would suggest Apexi AVC-R if you want go above 1.55-1.6bar
With MDX321 we are running 1.7bar and we are making 452.9bhp on V-power and 490bhp on V-power and 20%methanol
Jura
With MDX321 we are running 1.7bar and we are making 452.9bhp on V-power and 490bhp on V-power and 20%methanol
Jura
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