More Top End From My To4e
10-14-2003, 11:40 AM
#1
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Join Date: Dec 2002
Location: Long Beach, CA
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I know, I know.. what do you want from such a weeny turbo right? 
Right now the turbo is straight as it comes from HKS, .84 Ptrim - .60 57trim. To be honest I love this setup, it is very fun to drive on the street especially in LA where first and second gear are actually useful. But when the road does open up I can literally picture the power curve in my head, and feel it flatten out around 5500rpm and stay there. Would bumping up the compressor side to a 60trim and a .70 housing do much for me on the top end?
Matt
Matt
10-14-2003, 01:54 PM
#2
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Location: Tulsa, OK
Posts: 3,346
You would want to bump up the exhaust side to a .96/1.00. The compressor side won't effect it that much. Upgrading to 1.0 is going to give you a nice punch on top end and you won't suffer from much lag either.
10-15-2003, 08:09 AM
#3
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Location: Bayou-self Louisiana
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Three of us have three different setups.I had TO4 non-ported, Mark had T66,Fast Freddy had stock twins non sequentail. My TO4 is a cartech .81 "P" Trim while mark's is .96. Both Freddy and I get it on much faster than Mark due to spool up sooner and he Mark)has the new ballbearing turbo. Based on the many runs we do as a group Freddyand I are thinking about two smaller turbos producing the same volume as a larger turbo...maybe a T88 but it would spool up so much sooner so the power and torque is really in driving RPM.
Mark dyno'd at ARI's RX7.Com and had 420 at the wheels at 16lbs. Its fast but it comes on around hard at 5,000.Shift,5,000,shift.
As of today mark has sent ot Back to tubonetics to get the housing changed to a .81 but keeping the compressor side as is.
Mark dyno'd at ARI's RX7.Com and had 420 at the wheels at 16lbs. Its fast but it comes on around hard at 5,000.Shift,5,000,shift.
As of today mark has sent ot Back to tubonetics to get the housing changed to a .81 but keeping the compressor side as is.
10-15-2003, 08:38 AM
#4
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Join Date: Dec 2001
Location: Okinawa Japan at McDonalds
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Originally Posted by l8t apex' date='Oct 15 2003, 10:09 PM
Three of us have three different setups.I had TO4 non-ported, Mark had T66,Fast Freddy had stock twins non sequentail. My TO4 is a cartech .81 "P" Trim while mark's is .96. Both Freddy and I get it on much faster than Mark due to spool up sooner and he Mark)has the new ballbearing turbo. Based on the many runs we do as a group Freddyand I are thinking about two smaller turbos producing the same volume as a larger turbo...maybe a T88 but it would spool up so much sooner so the power and torque is really in driving RPM.
Mark dyno'd at ARI's RX7.Com and had 420 at the wheels at 16lbs. Its fast but it comes on around hard at 5,000.Shift,5,000,shift.
As of today mark has sent ot Back to tubonetics to get the housing changed to a .81 but keeping the compressor side as is.
Mark dyno'd at ARI's RX7.Com and had 420 at the wheels at 16lbs. Its fast but it comes on around hard at 5,000.Shift,5,000,shift.
As of today mark has sent ot Back to tubonetics to get the housing changed to a .81 but keeping the compressor side as is.
10-15-2003, 11:14 AM
#5
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Join Date: Dec 2002
Location: Long Beach, CA
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Originally Posted by 94touring' date='Oct 14 2003, 10:54 AM
You would want to bump up the exhaust side to a .96/1.00. The compressor side won't effect it that much. Upgrading to 1.0 is going to give you a nice punch on top end and you won't suffer from much lag either.
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