Ive always had a dumptube so ive nevr known. But on my friends new turbo setup the wastgegate(with no dumptube) blows the hot gasses literally right on the turbo inlet. He was curious to appx. what kind of hp gains he'll net if he gets a dumptube rerouted out of the engine bay? is there a link to a test or anything?

 

Been covered but hee you go

https://honda-tech.com/zerothread?id=1718505

This has some nice info

http://forums.evans-tuning.com...=2874

 

Exactly what i was looking for thanks!

 

there would probably be very noticable gains, up to 20-40hp

 

even on d series at 7psi? This is what hes workin with, it dumps literally on the turbo inlet.

 

worst design ever. That will kill power period. Is he really that cheap to make a 15 dollar dumptube

 

i know. I hope he sees a gain from this

 

thats bad dude, exhaust splatter on the turbo housing speaks for the need for a dumptube. at least get him to run it out of the engine bay.

 

probably not since hes concerned about the gains

 

what r u saying?

 

Tell him to get a damn dump tube and put a fliter on that turbo!!

His setup now is just plain STUPID!!!

Eric

 

That is definitely losing power. I witnessed a guy pick up 20Whp on the dyno by making a intake for the turbo so that it would not suck up the exhaust from the wastegate dump.

It was the only thing he could do since he was already at the dyno

 

just think of it this way, could you run a marathon with someone shoving a hairdyer in your mouth, it wouldnt make you perform well, and you would probably want to die.

so does his motor

 

lol good point

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rainmanEK &raquo;</TD></TR><TR><TD CLASS="quote">Tell him to get a damn dump tube and put a fliter on that turbo!!

His setup now is just plain STUPID!!!

Eric </TD></TR></TABLE>amen!

 

i tuned a ls that lost 40whp without a dumptube. Although on the street it seemed to make no difference on the power.

 

your definately loosing power from that. worst case, get a flange with a 2" pipe coming off it and then use like flex exhaust pipe to route down and away from the turbo intlet