Evo X Dump pipe limit
Thread Starter
Evolving Member
Joined: Mar 2008
Posts: 155
Likes: 0
From: MELBOURNE, AUSTRALIA
Evo X Dump pipe limit
Hi All,
What is everyone's experience with stock dump pipes and when it starts to limit power?
Changing from a X MR stock turbo on pump (equiv to 93 octane) making 300whp (DD CF1.0) on ~25psi tapering to 20psi then no other changes except an FP Green 73HTA and the car made ~310whp on same boost. So obviously there is a restriction somewhere.
The airbox and filter was removed for a test dyno run and there was ~1hp gain, so it doesn't look to be a restriction.
The car has
3" TBE
High Flow Cat
Ralliart Panel Filter
Walbro intank pump
800cc injectors
3 port boost solenoid.
flash tune
Other cars on the same dyno with similar mods have made ~365whp the only difference being a dump pipe.
Therefore it seems obvious the dump is an issue.
Curious to hear other peoples experience.
Cheers
What is everyone's experience with stock dump pipes and when it starts to limit power?
Changing from a X MR stock turbo on pump (equiv to 93 octane) making 300whp (DD CF1.0) on ~25psi tapering to 20psi then no other changes except an FP Green 73HTA and the car made ~310whp on same boost. So obviously there is a restriction somewhere.
The airbox and filter was removed for a test dyno run and there was ~1hp gain, so it doesn't look to be a restriction.
The car has
3" TBE
High Flow Cat
Ralliart Panel Filter
Walbro intank pump
800cc injectors
3 port boost solenoid.
flash tune
Other cars on the same dyno with similar mods have made ~365whp the only difference being a dump pipe.
Therefore it seems obvious the dump is an issue.
Curious to hear other peoples experience.
Cheers
Thread Starter
Evolving Member
Joined: Mar 2008
Posts: 155
Likes: 0
From: MELBOURNE, AUSTRALIA
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