to tune cut out open or close?
08-29-2009, 01:17 PM
#1
TECH Apprentice
Thread Starter
iTrader: (2)
Join Date: Apr 2006
Location: Kuwait
Posts: 386
Likes: 0
Received 0 Likes
on
0 Posts
to tune cut out open or close? hello 
the car is 90% normal street driven 10% roll racing
do I make the tuner tune the car while the cut out open or close?
engine is a stroker with heads and cam some bolt ons (will post details in the dyno section when dynoed and driven) LT, ORY , stock 2.75 exhaust after the Y to stock muffler (for the police) and a 3" DMH cut out before the muffler
many parts are on their way shipping
thanks in advance ^_^
the car is 90% normal street driven 10% roll racing
do I make the tuner tune the car while the cut out open or close?
engine is a stroker with heads and cam some bolt ons (will post details in the dyno section when dynoed and driven) LT, ORY , stock 2.75 exhaust after the Y to stock muffler (for the police) and a 3" DMH cut out before the muffler
many parts are on their way shipping
thanks in advance ^_^
08-29-2009, 03:16 PM
#2
Moderator
iTrader: (11)
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,605
Likes: 0
Received 6 Likes
on
6 Posts
Tuned tightly with the cutout closed, I get a little ping with it
open. So I'd tune first for your main mode of driving (presume
closed) and then touch up the big end based on what you find
with it opened up.
open. So I'd tune first for your main mode of driving (presume
closed) and then touch up the big end based on what you find
with it opened up.
