Downpipe

EthanMKIII · 09-18-2008, 04:32 AM

Well i got myself a stock 88 turbo supra for my first car, since first going on this forum ive notice that most turbo supras have a down pipe in them. i dont know much about this. anyone willing to explain to me how it works and wat it does?

mkiiisupra · 09-18-2008, 05:40 AM

The turbo's biggest downfall is the restrictive exhaust housing. The better your turbo is allowed to breathe the faster your turbo will spool.

BIC Performance Products w/ Divorced downpipe for the wastegate it the route i went, vry high quality piece

EthanMKIII · 09-19-2008, 12:05 AM

So pretty much it just makes the turbo more efficent thus adding boost? and therefore power? Do i have to run the down pipe back into the exhaust? Wouldn't it just be better to just run a second exhaust pipe from the turbo to the back of the car? I think it would look and sound damn sexy.

SideWinderGX · 09-19-2008, 02:57 AM

The downpipe is the piece of exhaust between the turbocharger and the rest of the exhaust. Look on the back of your turbocharger and youll see a 90 degree bend leading down to the exhaust beneath the car...that is your downpipe.

A bigger one will allow more flow through your exhaust, letting your turbo spool up easier, thus faster...and make more power.

09-18-2008, 04:32 AM	#1
EthanMKIII 3" Exhaust Join Date: Aug 2008 Location: BC Posts: 71	Downpipe Well i got myself a stock 88 turbo supra for my first car, since first going on this forum ive notice that most turbo supras have a down pipe in them. i dont know much about this. anyone willing to explain to me how it works and wat it does?

09-18-2008, 05:40 AM	#2
mkiiisupra Lexus & 550's Join Date: Sep 2007 Location: Las Vegas, NV Posts: 570 Blog Entries: 1	The turbo's biggest downfall is the restrictive exhaust housing. The better your turbo is allowed to breathe the faster your turbo will spool. BIC Performance Products w/ Divorced downpipe for the wastegate it the route i went, vry high quality piece __________________ 1990 Toyota Supra Turbo A/T ------------------------------------------------ Questions about oil? take a look http://www.supramania.com/aehaas/

09-19-2008, 12:05 AM	#3
EthanMKIII 3" Exhaust Join Date: Aug 2008 Location: BC Posts: 71	So pretty much it just makes the turbo more efficent thus adding boost? and therefore power? Do i have to run the down pipe back into the exhaust? Wouldn't it just be better to just run a second exhaust pipe from the turbo to the back of the car? I think it would look and sound damn sexy. Last edited by EthanMKIII; 09-19-2008 at 12:13 AM.

09-19-2008, 02:57 AM	#4
SideWinderGX 3" Exhaust Join Date: Feb 2007 Location: Syracuse, NY Posts: 203	The downpipe is the piece of exhaust between the turbocharger and the rest of the exhaust. Look on the back of your turbocharger and youll see a 90 degree bend leading down to the exhaust beneath the car...that is your downpipe. A bigger one will allow more flow through your exhaust, letting your turbo spool up easier, thus faster...and make more power. __________________ my car: 1987 brownish Toyota Supra Turbo, automatic 7MGTE engine with ~100k miles on it.

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