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-   Evo Engine / Turbo / Drivetrain (https://www.evolutionm.net/forums/evo-engine-turbo-drivetrain-22/)
-   -   Holset powered Evo IX (https://www.evolutionm.net/forums/evo-engine-turbo-drivetrain/468571-holset-powered-evo-ix.html)

evokid511 Jan 26, 2010 04:25 PM


Originally Posted by colonelfox (Post 7927281)
I think the 8 blade does something like 56 and the 7 blade flows 60.

that sounds about right

FX11 Jan 26, 2010 05:12 PM

looks great!

evokid511 Jan 26, 2010 07:13 PM

thank you

DSMpsi Jan 27, 2010 05:39 AM

That turbo isnt going to last long not using a restrictor. Also the -10 return is a bit small....
Looks good tho


Originally Posted by Wickedwhite8 (Post 7924610)
I hear you on that turbo. My buddy has one on his sexy Galant VR4 all you chicago guys know who I'm talking about. It is a beast and is the loudest turbo I've ever heard. His car moves like no other. So I know yours will rock. Nice build and Keep posting up your results.

You talking about Milt?

colonelfox Jan 27, 2010 06:10 AM

Thats completely untrue. They do not need a restrictor. People were killing them thinking they needed one.

DSMpsi Jan 27, 2010 06:32 AM

A restrictor is recommended.
Straight from Holset:
"Oil pressure of 150 kPa (20 lbf/in2) must show at the oil inlet within 3 - 4 seconds of engine firing to prevent damage to turbocharger bearing system. A flexible supply pipe is recommended.
The minimum oil pressure when the engine is on load must be 210 kPa (30 lbf/in2). Maximum permissible operating pressure is 500 kPa (72 lbf/in2) although 600 kPa (88 lbf/in2) is permitted during cold start up. Under idling conditions pressure should not fall below 70 kPa (10 lbf/in2)."

colonelfox Jan 27, 2010 06:40 AM

At idle the evo runs around 7. A restrictor would kill it there. At WOT I average around 60 and cruise is 50. Its also fed off the head which is a lower oressure then what is measured in the block. Any kind of restrictor would bring it below the very specs you just posted.

xspsi4 Jan 27, 2010 06:51 AM

nice to see someone else doing a holset on an evo, I should have mine done in a month or so.{thumbup}

Is that manifold for a dsm? It looks as if the placement is not far enough off to the drivers side.

DSMpsi Jan 27, 2010 08:13 AM


Originally Posted by colonelfox (Post 7929463)
At idle the evo runs around 7. A restrictor would kill it there. At WOT I average around 60 and cruise is 50. Its also fed off the head which is a lower oressure then what is measured in the block. Any kind of restrictor would bring it below the very specs you just posted.

Good to know, my old evo didn't idle that low. Even at WOT it was higher.

colonelfox Jan 27, 2010 09:13 AM

I may be off a few PSI because I haven't really watched the guage but it's within spec (I have aggressive cams and no balance shafts) My old DSM's always had higher pressure. The evo has always been around the same with several motor changes and guage swaps over the years.

evokid511 Jan 27, 2010 09:19 AM


Originally Posted by colonelfox (Post 7929935)
I may be off a few PSI because I haven't really watched the guage but it's within spec (I have aggressive cams and no balance shafts) My old DSM's always had higher pressure. The evo has always been around the same with several motor changes and guage swaps over the years.

thank you for the clarity i didnt think i was going to need one {thumbup}

evokid511 Jan 27, 2010 09:19 AM


Originally Posted by xspsi4 (Post 7929487)
nice to see someone else doing a holset on an evo, I should have mine done in a month or so.{thumbup}

Is that manifold for a dsm? It looks as if the placement is not far enough off to the drivers side.

nope its for an evo sits the turbo low and to the passanger side actually but its all good {thumbup}

JohnDoe1984 Jan 29, 2010 12:01 AM

Buy it now for $330.
http://cgi.ebay.com/ebaymotors/HX40-...Q5fAccessories

Do you think this thing would be way too much lag in an evo? 72lbs/min flow.

DSMpsi Jan 29, 2010 06:38 AM

:confused:
The 8 blade hx40 does not flow 72lbs, they also dont have vband exhaust housings. Unless this is some sort of modified one I wouldn't trust it, especially from eBay.

VRSF Tiago Jan 29, 2010 09:13 AM


Originally Posted by PeteyTurbo@KHC (Post 7897403)
That press bent (wrinkled?) downpipe looks like it can handle less airflow then stock.. Good luck with your venture.

This.

I'd scrap that manifold, find one that positions the turbo closer to the drivers side and one flanged for the twin scroll and get a larger better flowing o2 housing. That o2 housing is going to be a huge flow restriction as well as the turbine inlet.


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