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-   -   My S5 To Cosmo 2 Rotor Swap (https://www.nopistons.com/engine-swaps-35/my-s5-cosmo-2-rotor-swap-46684/)

mazdadrifter 03-29-2005 11:37 PM

and dropped down in the car

mazdadrifter 03-29-2005 11:45 PM

pics of the trick exhaust. wastegate routed back into the downpipe and hard lines ran for the wastegate

mazdadrifter 03-29-2005 11:48 PM

apexi dual n1's "y" opened up to accept 3" pipe. This conversion is amazingly not restrictive at all, i wish i had pictures of the y before it was installed.

mazdadrifter 03-29-2005 11:50 PM

jr's trick adaption for the drivers side motor mount

mazdadrifter 03-29-2005 11:58 PM

passenger side mount, notice the chromoly brace bent around the manifold to support the outside of the mount

inanimate_object 03-30-2005 02:46 AM

Looks great, when'll it be done?



Nice sig too https://www.nopistons.com/forums/pub...IR#>/bigok.gif



Mark

mazdadrifter 03-30-2005 06:32 AM

[quote name='inanimate_object' date='Mar 30 2005, 03:45 AM']Looks great, when'll it be done?



Nice sig too https://www.nopistons.com/forums/pub...IR#>/bigok.gif



Mark

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https://www.nopistons.com/forums/pub...1047683664.gif 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.

rfreeman27 03-30-2005 09:00 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..

mazdadrifter 03-30-2005 09:53 PM

[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..

[snapback]693112[/snapback]

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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.

viperkiller7 05-10-2005 09:36 PM

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


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