Silly question about a wastegate. - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

els7x5 · 12-19-2015, 08:47 PM

I have just done my first turbo (fully installed now) and there is a wastegate with a short pipe leading off of it. I bought the kit used and the guy didn't have the original shortened front pipe from the kit so I had one made. My question is if that pipe off of the wastegate should lead back into the exhaust or just end and kind of dump everything out? Let me know before I asphyxiate in my car and take the environment with me. Thanks!

tl:dr Should the wastegate lead back into the exhaust?

yelsew · 12-19-2015, 09:14 PM

So it can route back into the exhaust and most systems will do this. You can also, if you like ridiculously loud "screamer pipes", leave it as is. Normally best for that pipe to be routed outside of the engine bay in a way it won't vent to the cabin, for whichever route you choose to take. Its some peoples style, but I personally recommend against it for the reasons of sound and gasses in the engine bay and cabin.

go_a_way1 · 12-19-2015, 10:57 PM

^ what he said, route it back into the exhaust, keep it classy

els7x5 · 12-19-2015, 11:02 PM

For real, I have been getting fumigated. It sounds like a diesel but I am happy to hear it doesn't hurt anything until I can get it fixed.

GsxrMe · 12-19-2015, 11:11 PM

Ya as a dump pipe when at max boost settings, the car is loud and can get cops looking. It's up to you. If you do have it recirculate in to you exhaust make sure exhaust is big enough and doesn't cause back pressure on your wastegate. It will make your turbo spool slower.

Scott@HKSUSA · 12-21-2015, 11:01 AM

cut hole in hood
point dump towards sky

12-19-2015, 08:47 PM	#1
els7x5 Member Join Date: Apr 2015 Drives: Black FR-S Location: Orlando, FL Posts: 33 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 2 Thread(s)	Silly question about a wastegate. I have just done my first turbo (fully installed now) and there is a wastegate with a short pipe leading off of it. I bought the kit used and the guy didn't have the original shortened front pipe from the kit so I had one made. My question is if that pipe off of the wastegate should lead back into the exhaust or just end and kind of dump everything out? Let me know before I asphyxiate in my car and take the environment with me. Thanks! tl:dr Should the wastegate lead back into the exhaust?

12-19-2015, 11:11 PM	#5
GsxrMe Senior Member Join Date: Jul 2015 Drives: Late 2014 Subaru BRZ Location: Cape Coral, FL Posts: 557 Thanks: 20 Thanked 184 Times in 139 Posts Mentioned: 5 Post(s) Tagged: 2 Thread(s)	Ya as a dump pipe when at max boost settings, the car is loud and can get cops looking. It's up to you. If you do have it recirculate in to you exhaust make sure exhaust is big enough and doesn't cause back pressure on your wastegate. It will make your turbo spool slower. __________________ 2014 Subaru BRZ FBM Turbokit: GTX3076R - ECUTEK HRI FlexFuel tune - FBM 3" Turboback Exhaust - 550cc Injectors - Walbro 485 Fuel Pump - 4bar Map Sensor - FBM Oil Pan - ACT SB7-XTSS - AMSOIL all fluids - Forester XT Oil Cooler - Cusco engine, trans mounts - Whiteline rear differential bushings - Perrin shifter bushing - Firehawk 235/45/17 - AEM Failsafe

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12-19-2015, 11:02 PM	#4
els7x5 Member Join Date: Apr 2015 Drives: Black FR-S Location: Orlando, FL Posts: 33 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 2 Thread(s)	For real, I have been getting fumigated. It sounds like a diesel but I am happy to hear it doesn't hurt anything until I can get it fixed.

12-21-2015, 11:01 AM	#6
Scott@HKSUSA Join Date: Jan 2015 Drives: 2013 FR-S, HKS V2 S/C Location: Madison Heights, MI Posts: 115 Thanks: 0 Thanked 173 Times in 72 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	cut hole in hood point dump towards sky

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