Scion XB 1NZ-FE Turbo build - Toyota Yaris Forums

xnamerxx · 01-14-2011, 06:28 PM

Im pretty sure the power is giving up so early because the turbo is to small for the amount of power hes making. You can see it in the torque curve how it starts to die at 5k rpm's. Dont know the specs on his cam or the rpm range of the intake he's running but Id have to hazard a guess and say both are rated for something like 3-7.3k rpms but the turbo doesn't have the cfm to keep up.

If you look at the compressor map for the disco potato it gives up on at about 35 lb per minute with 2.2 bar. Rule of thumb is 10 hp per every lb per minute so easy math says 350 hp give or take 20 hp.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Want to build costom turbo kit. Need advice from boosted guys!	pimp my yaris	Forced Induction Forum	639	09-28-2013 11:26 AM
FS: 2005 Scion xA RS2.0 Turbo	uberegg	Cars for Sale by private party	40	04-03-2010 11:45 AM
Scion xd turbo	PARIS	Yaris TS Talk	22	02-26-2010 08:08 AM
Chevy Aveo RS: Turbo + good looks = build it!	Thirty-Nine	Off-topic / Other Cars / Everything else Discussions	22	01-12-2010 12:36 PM
Check out the new Scion iQ concept. In the States in 2011/2012	LA Yaris	California	9	10-23-2009 08:11 PM

01-14-2011, 06:28 PM	#11
xnamerxx 0-60 in slow Drives: light blue liftback Join Date: Aug 2009 Location: so cal Posts: 926	Im pretty sure the power is giving up so early because the turbo is to small for the amount of power hes making. You can see it in the torque curve how it starts to die at 5k rpm's. Dont know the specs on his cam or the rpm range of the intake he's running but Id have to hazard a guess and say both are rated for something like 3-7.3k rpms but the turbo doesn't have the cfm to keep up. If you look at the compressor map for the disco potato it gives up on at about 35 lb per minute with 2.2 bar. Rule of thumb is 10 hp per every lb per minute so easy math says 350 hp give or take 20 hp.