Unleashed Performance - 810RWHP, Stock Engine, Oil-less Rear Mount, and E85
03-31-2012, 02:05 AM
#122
Have you put it on the dyno with the air filter in place, or was it removed? Just curious how much of a restriction the filter actually is at over 800whp.
Another question I have is what A/R is the exhaust housing that you used?
Another question I have is what A/R is the exhaust housing that you used?
04-10-2012, 04:49 PM
#123
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I would like to know the A/R as well. I am looking at the 76mm Comp Oilless and am told .81 is good for rear mount. Others say it will choke on top end and I need .96. Please share with us what you used!
04-10-2012, 09:24 PM
#124
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Do at least .96. Their triple ball bearing spools super fast. If there is one thing you ever listen to make it be this, get a .96 or larger. I run a 1.32 and I don't know what lag is on my comp 80/79
04-10-2012, 10:30 PM
#125
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04-11-2012, 11:06 PM
#127
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We have never even tried running the car without an air filter. It has always had a K&N cone filter in place. But now you've got me curious about trying it on the dyno soon. 
Regarding the A/R of the turbo, we are using the .96 housing. I chose this because of the car being an M6, thinking it would help it spool faster. But as several people have already mentioned in this thread, the Comp oil-less turbo spools much quicker than a journal bearing turbo. So I'm also curious how a larger exhaust housing would work. But seeing as how we just made 840whp tonight, I doubt I'll be changing it anytime soon.
New thread with 840whp dyno graph located here:
https://ls1tech.com/forums/forced-in...-turbo-c5.html
Regarding the A/R of the turbo, we are using the .96 housing. I chose this because of the car being an M6, thinking it would help it spool faster. But as several people have already mentioned in this thread, the Comp oil-less turbo spools much quicker than a journal bearing turbo. So I'm also curious how a larger exhaust housing would work. But seeing as how we just made 840whp tonight, I doubt I'll be changing it anytime soon.
New thread with 840whp dyno graph located here:
https://ls1tech.com/forums/forced-in...-turbo-c5.html
05-02-2012, 09:35 AM
#128
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Rob, how did you run your coolant lines to get flow through the turbo? Awesome setup! I love my Comps but I think I have too much turbo and not enough motor now. Also I noticed on the oil-less, when you first get them they are super tight. How long did it take to loosen yours up?
Also I noticed on the oil-less, when you first get them they are super tight. How long did it take to loosen yours up? Last edited by WS6 GreeN; 05-02-2012 at 09:51 AM.
05-04-2012, 03:28 PM
#130
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I run a comp water cooled turbo. The coolant lines are easy. I just went from the from steam vent that go to the radiator. Redirected it to the turbo then from turbo to radiator. I just used barb fittings and hose clamps. No issues at all about 4,000 miles.
