Simple External wastegate mod / Tuning question
Hi, Ok basic question....I have a single turbo setup with external wastegate, ATM its plumbed back into the downpipe for sound suppression, but i would like it to be vented back to the atmosphere.
So, Question: If i Re-Mod the wastegate pipe back to venting to the atmosphere again would it effect my tune at all? Im running a microtech LT-10S, boost is at 8-10psi right now. My guess is it probably wouldn't really effect the tune since the wastegate pipe is beyond the intake / turbo and all, but im defiantly not a expert when it comes to tuning, just wrenching, lol. Cars getting tuned in mid spring but in the meantime i drive it once or twice a month for fun If anyone could let me know that would be great. If it would effect the tune ill just have to wait a day before i bring it in and do it, but would be nice if i could drive around with a open gate again with no worries :) |
It is possible that opening it up will affect the pumping efficiency of the engine which could affect AFR and the likelihood of knock.
|
hmm, weird.. that sucks. thanks
|
As stated above, wait till its your tuning time . Vent to atmosphere and retune.
Your afrs will vary, specially depending on your exhaust setup ( how straight flow or restrictive it is ). why to you want atmosphere WG ?, things get loud quick. |
YES this willl be very loud! I have mine this way... going back to the pipe when it all gets together...
|
Originally Posted by RX7(613)
(Post 10984650)
As stated above, wait till its your tuning time . Vent to atmosphere and retune.
Your afrs will vary, specially depending on your exhaust setup ( how straight flow or restrictive it is ). why to you want atmosphere WG ?, things get loud quick. Exhaust is full 80mm strait pipe to a huge steel wool packed greddy muffler --- for a bridgeport it is amazingly quiet once the turbo starts to spool Personal preference, i love external wastegates, had them on my previous 3 cars (88 T2, 02 WRX STI, 1JZ FD3S) :)
Originally Posted by zaridar
(Post 10984700)
YES this willl be very loud! I have mine this way... going back to the pipe when it all gets together...
|
A rotary vented exhaust sound is significantly louder then a piston counterpart. Just because you liked it with other cars, does not mean you will like it with the rx7 as well.
thewird |
Originally Posted by thewird
(Post 10985432)
A rotary vented exhaust sound is significantly louder then a piston counterpart. Just because you liked it with other cars, does not mean you will like it with the rx7 as well.
thewird They were both loud and i loved it! :egrin: I had racing beat exhausts on both those cars also so so quiet when cruising loud when i want, perfect for my taste. :icon_tup: FD is odd weekend / track car only so loudness isnt a problem since i hardly drive it. |
Don't forget to check your local tracks noise regulations. They do exist for some.
thewird |
well go for it then... im thinking it will affect your tune though since your o2 is probably in your downpipe...
|
Have had mine vented to atmosphere for several years, probably going to plumb it back in, just too noisy for a street car. People look at me like my car is gonna blow up.
|
Originally Posted by thewird
(Post 10986321)
Don't forget to check your local tracks noise regulations. They do exist for some.
thewird |
nice..
good luck! |
All times are GMT -5. The time now is 12:29 AM. |
© 2024 MH Sub I, LLC dba Internet Brands