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Turbo with 155's

14K views 38 replies 16 participants last post by  farming_stroker7710  
#1 ·
So im looking at a powermax to pair with some 155's set to go in the truck in two weeks. reviews with this combo? 500 horsepower capable and be able to tow? that is my goal... lowering soon as well.
 
#2 ·
Yep, that's what my plan for the future is. I can give you the full breakdown of the parts list for this combo if you would like. :D
 
#6 ·
Sure it would be great for towing, but 500 with a race tune? Please prove me wrong, but I doubt it with 155's on any legitimate dyno with times to match. It is tough to break 500, and have you done it with your combo? Just curious? I am a member of the 500+hp 6.0 club and I doubt 155's will get you there on a legitimate dyno with times to match. Not trying to be negative, just know what it takes.
 
#8 ·
if i get everything done in time for rudy's dyno day i will put it to the test.
 
#10 ·
tell me about the ficm tune? how much does it help? great feedback i appreciate everyone chirpin in.
 
#12 ·
I love the moderate FICM tuning eric did to my FICM. Made throttle response way better....hence the turbo being less laggy. It made a very noticable difference and from what i've been told...the moderate FICM tuning will net roughtly 25-30 hp.
 
#11 ·
My set up is with a stock turbo...... and I would venture to say I am close to 500 if not over.... the very next thing I am going to do after paint will be a trip to the dyno.....
 
#14 ·
Well, we will just have to see what it does...... you may be right, but I want to see what it does for myself.
 
#19 ·
maybe 440 at the crank... im guessing a stock turbo, stock injector tuned 6.0 would make 350...375 at the wheel on a dyno. a 155 with a tune plus another 8-10 psi from a powermax would have to net at least 100, conservatively. So with a race tune, high 4--'s are probably likely...all i want is 499.51......lol
 
#20 ·
Fwiw...400+ trucks with just a tune is not that common. I had all the supporting fuel system mods with my hot tune an only did 380. I have 190's and a powermax now and I'm still not sure if I'm north of 500. Either way 155's would still be a fun truck on the street
 
#21 ·
400 at the wheels is not at all uncommon with a 6.0 with nothing more than an intake exhaust and custom tune.

500 with 155's? You'll be knocking on the door. That I can say for sure. But wont be over
 
#24 ·
My truck with stock intake, stock exhaust (including muffler and cat in place) with nothing but Erics race tune put down 466... doesn't mean I believe it. I bet it wont get backed up on the track. In fact I ran a 1/4 mile using a dash mounted data logger and with my weight it put me at 421 rwhp.
 
#26 ·
I don't know how much HP tires really take, but when i was at the dyno back in '06 when a guy put down 502hp he did it on stock rims and tires AFTER he hit around 460ish i think with 35" nitto mud grapplers. I was suprised to see 35" tires take that much HP away.
 
#30 ·
I'm sorry,but i don't mean to bicker either, but how do you know my 190's haven't been reworked. You're acting as if you know more about my truck than i do. I would definitly like to know though how much HP it is makeing. It would make my mind more at ease to really know for sure. I don't have a dyno place anywhere close to me or a track. But my edge insight will record 1/mile times the same as a track will...so maybe when it gets nice out i can get my truck out and find a good flat 1/4 mile stretch of road to run it then see what the HP calculator says.
 
#36 ·
rwhp is just a number. Dragstrips dont lie. You can make "x" amount of power but its really useless unless its transferred to the pavement.
 
#39 ·
As far as makin more or less power depending on the dyno also depends on the day, air temp, altitude, all different types of variables. one guy can be making 550 horse at sea level take the same truck to a dyno in colorado and it will make way less then that. point being nobodys numbers will be the same unless they are run at the exact same dyno on the exact same day, so please end the bickering.