Very impressed with Corsa quality
09-09-2011, 08:43 PM
#21
Corsa's are the best, big bucks, but really nice, tuned systems for sure. What bolts are giving you a problem Michael, from the y-pipe to the cat back? You've had that y-pipe off so many times it's hard to believe that they're oxidized already 
Worse case scenario, you could cut the bolts with a hacksaw since I don't think that you have an air chisel where you are. If it's the stock y-pipe and factory hardware, the "bolts" are actually studs that are pressed into the pipe btw...
Worse case scenario, you could cut the bolts with a hacksaw since I don't think that you have an air chisel where you are. If it's the stock y-pipe and factory hardware, the "bolts" are actually studs that are pressed into the pipe btw...
Bolts are soaking in PB now....I'm getting this darn thing on tonight
09-10-2011, 01:51 PM
#27
Got everything bolted up and on. Getting that tip in the right position is pretty tedious. Corsa calls for 1" of clearance to the base of the body panel. It took some time, but I got it and I'm pretty happy with it. The setup is what I would consider very mild. At idle it's quiet, but you can tell it's not stock. Around town less than 2000 rpm it's about the same as stock, above that you can tell it's got something. And of course once you drop down into 4th and start cruising it's basically as stock. I expect that the longtubes will add some volume to it, but nothing crazy.
And just for the heck of it, I went out and hooked up my scanner and did WOT a couple times. Call me crazy but I think the catback may have picked me up a tad of power, rear end has never kicked out on me before on the 1-2. And to my surprise I'm only getting 19-20 degrees of timing at WOT. Makes sense considering I tuned it with big headers and a catless Y pipe. The engine isn't seeing nearly as much air flow with the stock 4.8 exhaust up front and it's dropping me down into lower air flow cells in the timing table. That will all change here in a week or two though....
And just for the heck of it, I went out and hooked up my scanner and did WOT a couple times. Call me crazy but I think the catback may have picked me up a tad of power, rear end has never kicked out on me before on the 1-2. And to my surprise I'm only getting 19-20 degrees of timing at WOT. Makes sense considering I tuned it with big headers and a catless Y pipe. The engine isn't seeing nearly as much air flow with the stock 4.8 exhaust up front and it's dropping me down into lower air flow cells in the timing table. That will all change here in a week or two though....
09-10-2011, 02:11 PM
#28
Dang, more review of the log reveals a MAP of 86 kPa @ 6000 rpms. Holy crap. My engine is breathing through a straw. I really wish FAST would get their act together and put out a reliable intake. Just looking at the data, I think the longtubes and a FAST intake with a 4" CAI could gain me 75 rwhp from where I'm at now.
What CAI are you running?
