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Old 12-17-2008, 07:30 PM   #1
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Member#: 170746
Join Date: Feb 2008
Chapter/Region: Tri-State
06 STI

Default Swapped Impreza

Hey everyone i was wonderng if i can get some help... I just finished my sti swap into a 99 2.5RS coupe! I mated it to an 06 wrx trans and put a brand new exedy clutch! Now when i drive it it slips cant really go in boost or it slips!! Just wanted to see if anyone has comments on this! THANKS
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Old 12-20-2008, 07:54 PM   #2
99 rs
Scooby Specialist
Member#: 100994
Join Date: Nov 2005
Chapter/Region: W. Canada
Location: Edmonton
2005 Acura NSX-T
2002 IS300 Wagon


Describe the slipping a bit more. Does your boost go to proper boost levels?
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Old 12-20-2008, 08:59 PM   #3
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Member#: 14970
Join Date: Feb 2002
Chapter/Region: BAIC
Location: San Jose, CA
1997 GF8


Which shift fork did you use?

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Old 12-20-2008, 09:56 PM   #4
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Member#: 197096
Join Date: Dec 2008
Chapter/Region: NWIC
Location: The Hood
00 impreza GC8
black for now


Hello,if I were to guess,I would say you put a WRX clutch of the wrong year onto the STi flywheel,if im right I believe they changed from a flat faced flywheel in 2005 to what is called a stepped flywheel,the two will not interchange parts!on one the pressure plate sits farther down when bolted on than the other,so if you put a standard clutch setup onto a stepped flywheel it will slip in the powerband and your pedal with fell like your stepping on a dead fish.just my two cents.let me know what the outcome is,id like to know.
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