NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   2nd Generation Specific (https://www.nopistons.com/2nd-generation-specific-17/)
-   -   wastegate porting (https://www.nopistons.com/2nd-generation-specific-17/wastegate-porting-5137/)

Turbo II 09-09-2002 04:16 PM

u got a 3rd gen too. sweet looking cars

Geoffman72 09-09-2002 04:19 PM

Nope, that one is The Glass Mans. I'm not sure if hes a member on here or not.



Anyways, I forgot this was supposed to be a thread about wastegate porting so perhaps later I will do that writeup https://www.nopistons.com/forums/pub...DIR#>/wink.png

evilT2 09-09-2002 04:28 PM


Originally Posted by RX-7Aggie' date='Sep 9 2002, 01:11 PM
what exactly will this feat accomplish?

im creeping like a mofo, its a last ditch effort before i have to rig up some sort of crappy ass external system

evilT2 09-09-2002 04:32 PM


Originally Posted by Geoffman72' date='Sep 9 2002, 01:34 PM
To answer all your questions,



http://fc3s-pro.com/TECH/HOWTO/howto.html



Then go to turbo turbine housing porting https://www.nopistons.com/forums/pub...IR#>/smile.png



The benefit of the wastegate porting would be less chance of boost creep. After doing this to mine I didnt get boost creep at ALL, but I also ported mine so large I suspect a little boost was leaking at all times.





The turbine exhaust inlet porting, in conjunction with removing the twin scroll, got me the 1psi back that I lost in the wastegate porting.



So whereas before, it would be at 5 in gears 1 and 2, then spike to 7 or almost 8 in 3-5, after the work was done it would be above 6 in gears 1-2 and close to 7 through the rest.



If I feel like it I might make my own write up on all the steps, tools needed and what not to do this https://www.nopistons.com/forums/pub...IR#>/smile.png

hmm that says nothing about wastegate porting



ill just have to figure it out

j9fd3s 09-09-2002 04:54 PM

http://fc3s-pro.com/TECH/MODS/TURBO/wg.htm

try that one, ted likes to move his stuff around



mike

Geoffman72 09-09-2002 04:58 PM


Originally Posted by j9fd3s' date='Sep 9 2002, 06:54 PM
http://fc3s-pro.com/TECH/MODS/TURBO/wg.htm

try that one, ted likes to move his stuff around



mike

D-OH! Glad you caught that https://www.nopistons.com/forums/pub...DIR#>/wink.png


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