Forced Performance Evo 8 turbo housing. 10.5cm2 worth it?
Originally Posted by MalibuJack
I have a titanium 9.8 turbo that I ordered a 10.5 nozzle housing for it.. Essentially that makes it a 6.5 TME turbo..
EDIT: Someone pointed out that the compressor wheel is different between the TME turbo.. I don't know the specs of the wheel or whether or not its better or worse than the combination "Frankenstien" setup I have..
EDIT: Someone pointed out that the compressor wheel is different between the TME turbo.. I don't know the specs of the wheel or whether or not its better or worse than the combination "Frankenstien" setup I have..
HI,
I have an Evo VI RS-2 spec....using the aluminum/titanium 10.5 cm2 turbo (which is what I think FP is selling - TD05HRA-16G6-10.5T) It's great...spool up no problem!! Ton's of top-end for a turbo of this size....my car pulls hard to 155mph. This is the best exhaust housing to use!
The really TM turbo is the TD05RA-15GK2-10.5T which sell for big $$$ upwards of $1500 usd i'm told. This compressor housing is slightly larger with a 3mm bigger inlet, it's supposed to increased flow for stronger mid-range to top-end power...
I have a friend with EVO 7 with stock GSR turbo TD05HR-16G6-9.8T same as USD evo 8. We have pretty much identical mod's (exhaust, HKS 264's, f/pump, b/cntrl, air-filter [Evo 6 uses K&N drop-in], 02 housing & d/pipe), he's running 21 psi & I run 18psi. His Evo 7 produced 330whp & my Evo 6 290whp. When we drag race I am always 1-2 car lengths ahead of him, eventhough he has 40 more whp than me.
I think it because of the turbo, his car runs out-of-breath quickly & actually lacks the top-end of my Evo 6.
Just my observation & input though.
Respec
I have an Evo VI RS-2 spec....using the aluminum/titanium 10.5 cm2 turbo (which is what I think FP is selling - TD05HRA-16G6-10.5T) It's great...spool up no problem!! Ton's of top-end for a turbo of this size....my car pulls hard to 155mph. This is the best exhaust housing to use!
The really TM turbo is the TD05RA-15GK2-10.5T which sell for big $$$ upwards of $1500 usd i'm told. This compressor housing is slightly larger with a 3mm bigger inlet, it's supposed to increased flow for stronger mid-range to top-end power...
I have a friend with EVO 7 with stock GSR turbo TD05HR-16G6-9.8T same as USD evo 8. We have pretty much identical mod's (exhaust, HKS 264's, f/pump, b/cntrl, air-filter [Evo 6 uses K&N drop-in], 02 housing & d/pipe), he's running 21 psi & I run 18psi. His Evo 7 produced 330whp & my Evo 6 290whp. When we drag race I am always 1-2 car lengths ahead of him, eventhough he has 40 more whp than me.
I think it because of the turbo, his car runs out-of-breath quickly & actually lacks the top-end of my Evo 6.
Just my observation & input though.
Respec
Originally Posted by EvO6-RS2
HI,
I have an Evo VI RS-2 spec....using the aluminum/titanium 10.5 cm2 turbo (which is what I think FP is selling - TD05HRA-16G6-10.5T) It's great...spool up no problem!! Ton's of top-end for a turbo of this size....my car pulls hard to 155mph. This is the best exhaust housing to use!
Respec
I have an Evo VI RS-2 spec....using the aluminum/titanium 10.5 cm2 turbo (which is what I think FP is selling - TD05HRA-16G6-10.5T) It's great...spool up no problem!! Ton's of top-end for a turbo of this size....my car pulls hard to 155mph. This is the best exhaust housing to use!
Respec
Originally Posted by bishiboy
Do you plan on cleaning up the turbine housing?
I'm sure you'd pick up a few rpms on spool-up.
I'm sure you'd pick up a few rpms on spool-up.
Probably pick up a bit of air volume.. Its hard to say because it will really depend on how efficient the compressor wheel itself is.. If its overengineered like I suspect, I'll probably be able to sustain a bit more air volume at the same pressure.. especially porting the scroll and inlet.. Who knows, it may ruin the turbo too.. I would think between the lightweight components, the 10.2 nozzle and a bit of careful porting, it should make quite a difference, but I think the difference becomes much more dramatic when you have all the supporting mods, since the key is the allow the turbo to not work as hard, and move that air volume without restrictions (which will cause additional heat)..
Originally Posted by MalibuJack
Yeah, thats mainly my concern, we always talk about more power, bigger turbo, etc.. but I rarely see anyone also upgrade the cooling system to go along with all that..
More OT related to this...
Anyone who tracks their EVO tried the Evans system for cooling?
http://www.evanscooling.com/main20.htm
Originally Posted by Buster42
More OT related to this...
Anyone who tracks their EVO tried the Evans system for cooling?
http://www.evanscooling.com/main20.htm
Anyone who tracks their EVO tried the Evans system for cooling?
http://www.evanscooling.com/main20.htm
Interesting, It seems that (if I recall) Chevy has done this on some of their cars. But its certainly worth trying as part of a whole cooling system upgrade. For me its also important that it be somewhat environmentally friendly, so I'll be doing further research on it.



