My friend's 335i is absolutely awesome....it makes peak torque at 1400 rpms and holds that all the way up. Being 3500lbs helps too. In my craziness, I've been looking at used 5.3 motors, and can't believe how cheap they are. $200-300. I've been looking for a 6.0 in case mine goes for some reason, and I can't find anything I like for less than 14-1500 (low mile 05+ lq4). What would it take to get instant boost on a 5.3l that still pulled great up top? Would it take twins?

 

IMO a properly speced turbo can be made to make boost when you want. I really like the lag of mine so to speak. IMO it makes the the truck more driveable.

 

its a fine line and really how you define "instant boost" and "no loss up top" honestly it will be a compromise either way IMO... but you can find a preperly sized turbo that'll give you a lot of both... I dont think one can be had TOTALLY without the other...

I'd say a 70mm with .81ish a/r exhaust housing will be pretty close.... front mounted and with supporting mods of course

 

Spray it.

 

Yep a 50 shot out of the hole is the only way to make "instant" boost with a turbo

 

Reason you can find 5.3l's cheap is cause they are more mass quanity produced engine than any of the other ls motors. I am still waitin for Nonnie to post up some vid's of his new 2-step. He said with the 2 step set at 2500rpms he can get 3-4lbs of boost in park with it activated.

 

LOL, that's badass!! 3-4lbs of boost IN PARK!!! Where's that wiley little turd?

 

Heck yea. Now I just need to sell a kidney so I can get one . He uses wi-fi when he can, too cheap to get wireless

 

I agree here, one or the other will be had, so you want ot try and get thebest of both.. Spraying it from a dig will help the spool time

 

the bmw 335i has to very small turbos ... there si a tune for them to make em even more powerful i forgot them name of it ..