My S5 To Cosmo 2 Rotor Swap
03-30-2005, 06:32 AM
#17
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Join Date: Mar 2003
Location: Sunny South Florida :)
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[quote name='inanimate_object' date='Mar 30 2005, 03:45 AM']Looks great, when'll it be done?
Nice sig too
Mark
[/quote]
It has actually been done since right before the winter retreat which was feb 10th, so i've been street tuning it, and trying to resolve a couple boost issues before taking it to the dyno.
Right now I'm running a 6psi spring just because at 4500 rpm it starts creeping and gets upto ~10 psi by redline. I tried to replace the spring with a 10 psi one, hoping that it would go to 10 psi and just sit there till redline, but it starts creeping at 4500 also. Definatley sounds like the wastegate is being overwhelmed, but at this point I'd almost settle for 6psi, than to go back and have to replumb the downpipe, wastegate dump, and buy a 800 dollar wastegate.
Car was never meant to be a drag car anyways.
Nice sig too
Mark
[snapback]692707[/snapback]
[/quote]
Right now I'm running a 6psi spring just because at 4500 rpm it starts creeping and gets upto ~10 psi by redline. I tried to replace the spring with a 10 psi one, hoping that it would go to 10 psi and just sit there till redline, but it starts creeping at 4500 also. Definatley sounds like the wastegate is being overwhelmed, but at this point I'd almost settle for 6psi, than to go back and have to replumb the downpipe, wastegate dump, and buy a 800 dollar wastegate.
Car was never meant to be a drag car anyways.
03-30-2005, 09:00 PM
#18
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Join Date: Dec 2002
Location: fredneck MD
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Take off that dump pipe and see if it helps the wastegate...
10lbs isnt even really getting into where that turbo flows. I like how more people in the import world are actually going to fabricators and getting custom stuff made. The guy who did the cage in my car is starting to do tons of import stuff. I guess that people are finally realizing that you can have work done (like the cage) custom and dont have to buy it all from a catalogue....
your car and jims are also good examples..
10lbs isnt even really getting into where that turbo flows. I like how more people in the import world are actually going to fabricators and getting custom stuff made. The guy who did the cage in my car is starting to do tons of import stuff. I guess that people are finally realizing that you can have work done (like the cage) custom and dont have to buy it all from a catalogue....
your car and jims are also good examples..
03-30-2005, 09:53 PM
#19
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Join Date: Mar 2003
Location: Sunny South Florida :)
Posts: 1,963
[quote name='rfreeman27' date='Mar 30 2005, 09:59 PM']Take off that dump pipe and see if it helps the wastegate...
10lbs isnt even really getting into where that turbo flows. I like how more people in the import world are actually going to fabricators and getting custom stuff made. The guy who did the cage in my car is starting to do tons of import stuff. I guess that people are finally realizing that you can have work done (like the cage) custom and dont have to buy it all from a catalogue....
your car and jims are also good examples..
[/quote]
I've tried that actually, but I need to make a cap to cap off the down pipe, because when i opened that up, the less back pressure on the wastegate dump was canceled out by the less back pressure on the turbo itself, so it still crept. I'm going to redo it with the downpipe closed off.
10lbs isnt even really getting into where that turbo flows. I like how more people in the import world are actually going to fabricators and getting custom stuff made. The guy who did the cage in my car is starting to do tons of import stuff. I guess that people are finally realizing that you can have work done (like the cage) custom and dont have to buy it all from a catalogue....
your car and jims are also good examples..
[snapback]693112[/snapback]
[/quote]
I've tried that actually, but I need to make a cap to cap off the down pipe, because when i opened that up, the less back pressure on the wastegate dump was canceled out by the less back pressure on the turbo itself, so it still crept. I'm going to redo it with the downpipe closed off.
05-10-2005, 09:36 PM
#20
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Join Date: Dec 2004
Posts: 14
your motor looks awsome. im doing the conersion now. i have the motor in and turbo bolted on. upgraded T78..anyway what pully kit is it that you have on your car. i was looking for a different waterpump pully but i saw you had a whole kit. also is that a custom water filler neck on the housing... is it bought or did you guys make it. any info you have would be appreciated. thanks
Rodney
Rodney
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