I did 545/565 on my LQ4 with a Maggie 112 on 8#

 

stock LQ4
stock 4L80E
stock TC
STS 60mm
93oct
275/60/16 Toyo Proxes S/T
TC locked up in 2nd gear on all the pulls on a stingy Dyno Dynamics


6psi ~16* timing
tune i towed with
ran a 13.2@104 on that setup



9psi ~14* timing



6psi ~16* 47 shot nitrous pushed it to about 7psi
12.5@111 on this





hopefully have some mo better numbers with the front mount and S475

 

Id bet you hit 500 pretty easily with that S475. What turbine/housing is on that?

 

Mine is 6.0L w/ 9.2:1 cr (I wish I would have went higher now)
WCCH stage II heads
212/218-.59/.60@115 cam
Trick kit with 3" dp t76 76mm w/ .96 ar.
FLT 80e w/ Circle-D 258mm tripple disc
3.73 gears
@ 12psi 502hp/522tq
@ 16psi 627hp/653tq
These are with low timing, and 11 afr

 

Id be happy with 500 to the wheels.
Its a 83mm 1.0 AR.

 

Mods in my sig, and my times too.

My truck's been on the dyno one time, the numbers were 425/428. They seemed low to me, and the next week I remembered that my fuel filter hadn't been replaced since I originally installed the blower. I took it off & it was plugged, couldn't blow through it. Went back the the track and times dropped from 12.4's to 11.8's. Hasn't been back to the dyno though.

 

I gotta admit I'm a little underwhelmed by the power numbers the turbo's are putting out at moderate boost levels. They clearly have more potential when you crank it up and go for the gold... but at about 10# where I would most likely be living they dont seem all that impressive compared to their counterparts. I wonder if thats a function of having such an inefficient exhaust system compared to what the belt driven guys can run...

 

you gotta take dyno numbers with a grain of salt.. Trap speed is where your power really shows up.
Different dynos will throw the numbers compared to another. and turbos are load bearing, so some dynos wont let the turbo get to full boost.
Dyno dynamics to say a dyno jet is a 15% difference.
so my 440hp would be roughly 505hp on a dynojet.

 

Haha but why would it be clogged.. we have such quality gas up here


We should schedule another dyno day and both head into town once my truck is all set back up

 

Yea I understand that, but its definitely something worth noting. The turbo's are much more efficient at making boost... theres no question there, but without spending an arm and a leg on a turbo kit they still use the stock manifold on one side... kinda whacky if you ask me. Just by looking at most of the kits I think there is a ton of power potential left in them... look at how much boost supercharged guys lose when they go to a great exhaust system... yet they are stil pushing as much if not MORE air through the engine.