611rwhp 534ftlb - all motor LS7
Ignore the slow-poke granny shifting - we are working on figuring out of there is a hydraulic issue or a tranny issue - but suffice it to say, the bastard won't allow any fater shifting at the moment.
http://www.youtube.com/watch?v=UHC7ti8mFBA
The current setup is Kooks 1 7/8 3" midpipe, Borla XR-1 resonator (it necks down to 2.5" then into the muffler) then Borla XR-1 tail pipes that are 3" over the axle pipes.
This seems to be the best compromise for nice sound, not so loud as to call all cops, and free flowing enough for good numbers.
If I could, I would run the full 3" open system all the time, but when your car sets off car alarms on the street behind your house when you start it up - you know your car is too loud

Its almost as if the clutch hydraulics dont always work - like I am not pushing the pedal all the way to the florr, but I am.
Farging GM hydraulics.
Last edited by RC45; Apr 13, 2008 at 02:01 PM.
The current setup is Kooks 1 7/8 3" midpipe, Borla XR-1 resonator (it necks down to 2.5" then into the muffler) then Borla XR-1 tail pipes that are 3" over the axle pipes.
This seems to be the best compromise for nice sound, not so loud as to call all cops, and free flowing enough for good numbers.
If I could, I would run the full 3" open system all the time, but when your car sets off car alarms on the street behind your house when you start it up - you know your car is too loud

Thanks, yeah - it is almost a double clutch manouvre but all that really is needed is for the motor to lose some revs than I can shift.
Its almost as if the clutch hydraulics dont always work - like I am not pushing the pedal all the way to the florr, but I am.
Farging GM hydraulics.

Thats when a turbo kit is nice to have since the turbo actually acts as a resonator before the muffler no cats needed. Then you add a cutout into the picture and wa la. BTW your ls7 setup is the cream of the crop as far as NA.
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what would be had (or lost) by using a single plane intake? it seems high rpm power would rise and tq would decrease. that is definately an engine that needs to breathe.
The car is wicked wicked fast, so fast that I am fitting C6 Z06 six pistons pots up front with 2 piece light weight rotors to get the "stopping power" up to par with the "going power"

Yessir - it is my own rendition of the C5R hehe.
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