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Old 03-02-2013, 09:23 PM   #1
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Default 919hp/880tq stock bottom end 4.8 ......

Foose On Kill... 919HP/880TQ 4.8L - PerformanceTrucks.net Forums

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Foose On Kill... 919HP/880TQ 4.8L


Well after a long fuel battle, I finally have what it takes to let this nasty bw 475 billet turbo from BoostLab do it's thing. VERY VERY happy with the truck and whats it's done. I will be going the 1/4 mile tomorrow to get a new slip!

Latest engine/setup.

4.8L with 111k
Untouched bottom end, stock non-ported heads
.
Comp Dual 675 spring/Comp Pushrods
ARP studs, ls9 Gaskets
TBSS intake with stock 78mm TB
Speed Inc Tu1 cam 225/225 .581 .581 113+1

Dual Walbro 450
8an feed 127lb injectors at 58 base
Fuel lab 1-1 FP regulator

KB-Racing manifold/hot pipes/cold pipes.
BoostLab BW 475 w/billet 11 blade wheel, race cover
83/74 turbine 1.10 a/r, full 4" with Borla to rear bumper

CircleD and JakesPerformance for awesome trans/convertor.



Low down on today..

4 Pulls. 100% E85.

First was pig rich,17-18psi 755HP/721TQ
Next Less fuel more boost at 19psi 816/800TQ
Goal met! However, with so much left on the table, went with more boost at 22psi and no air filter. 877HP/822TQ

Lastly, my mind racing already I noticed the 800s goal came and past pretty easy, so damn close to 900 wheel. I/we decided instead of boosting for it, hit a 35 shot on a 5500-6500 window. However, I have to get it figure out but HP still turned it on and off during the pull, then on at 5500 full. You can see in the video what i'm talking about, redlight is power to the nitrous solenoids.

This engine is nuts. Headed to track tomorrow to see if I get a new slip to hang on the wall and see she'll hold together for 9 seconds. Then Monday i'm driving it to Ohio to visit the family because street truck!




All boost:



All Pulls:

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Old 03-02-2013, 09:24 PM   #2
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Default Re: 919hp/880tq stock bottom end 4.8 ......

Omg god. I Fucking want a ls
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Old 03-02-2013, 09:24 PM   #3
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I should have boosted the 4.8 from the start....
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Old 03-02-2013, 09:42 PM   #4
 
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very impressive...now get that truck spoolin son!
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Old 03-02-2013, 09:46 PM   #5
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Default Re: 919hp/880tq stock bottom end 4.8 ......

if i change cams before the 1/2 mile it'll be one better than the current and good for boost. But the car will see higher numbers before the truck.
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Old 03-02-2013, 09:48 PM   #6
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Default 919hp/880tq stock bottom end 4.8 ......

Frickin niiiiiiice!!!
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Old 03-02-2013, 09:51 PM   #7
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Default 919hp/880tq stock bottom end 4.8 ......

Whoa fuck. That's awesome
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Old 03-02-2013, 09:55 PM   #8
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Default 919hp/880tq stock bottom end 4.8 ......

Yes, yes it is!! Was SUPER hard not to fuck with my Tundra, lol. Couldn't. One is bad enough... This truck is pretty damn amazing!!
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Old 03-02-2013, 10:00 PM   #9
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Yes it is!! Look at his other vids in his channel

I should've kept the 4.8 and boosted it. I've said it before and I'll say it again, I love my 6.0 but the 4.8 had much more potential for less.

For the price of a turbo kit and just a trans swap I would have been wrecking shit and still been less than my current setup if not close to it.
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Old 03-02-2013, 10:03 PM   #10
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Default 919hp/880tq stock bottom end 4.8 ......

So cam, intake manifold, badass turbo and a big fuel system? Seems simple enough....
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Old 03-02-2013, 10:14 PM   #11
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Default Re: 919hp/880tq stock bottom end 4.8 ......

Yep, all i ever seen people do was swap for a 6.0. Including my brother
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Old 03-03-2013, 01:19 AM   #12
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Sweet jeezus!!

That's gonna scoot
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Old 03-03-2013, 02:38 AM   #13
 
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fuck, even if you left the 6liter in, and swapped a z06 cam in, ask eagle how much pah them cams are capable of...
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Old 03-04-2013, 01:36 PM   #14
 
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Well that's neat
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Old 03-04-2013, 04:16 PM   #15
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Great power, but you see this a lot with people running a boosted ls motor. The big problem is its a rolling time bomb. Sooner or really sooner the motor is gonna shit itself. Not that it will be expensive since its a 4.8 but still.
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Old 03-04-2013, 05:07 PM   #16
 
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Great power, but you see this a lot with people running a boosted ls motor. The big problem is its a rolling time bomb. Sooner or really sooner the motor is gonna shit itself. Not that it will be expensive since its a 4.8 but still.
He's been running this same motor with 700+ hp for over a year now lol.
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Old 03-04-2013, 05:59 PM   #17
 
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Well... shit, I take that back lol. Apparently it finally popped.

Foose's 4.8L goes out fighting....will be missed - PerformanceTrucks.net Forums


Skip to 2:41 for the blowup

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Old 03-04-2013, 10:21 PM   #18
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Quote:
Originally Posted by LSx S10 View Post
Well... shit, I take that back lol. Apparently it finally popped.

Foose's 4.8L goes out fighting....will be missed - PerformanceTrucks.net Forums


Skip to 2:41 for the blowup

Like I said. I can point you to many people that make that much power on the dyno with similar setups, but the only ones that last are only alive because they never actually put a load on the motor.

If you can't flog it often without worrying about hurting it, then its just a waste IMO. Anything over 600rwhp on a stock LS alum bottom end is just a rod or piston failure waiting to happen.
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Old 03-04-2013, 10:24 PM   #19
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Default Re: 919hp/880tq stock bottom end 4.8 ......

That's actually an iron block but yea, something will eventually give
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Old 03-04-2013, 10:34 PM   #20
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Quote:
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That's actually an iron block but yea, something will eventually give
Ah good point. I deal in the aluminum block varieties much more but since the weak spot is the rod (Caps) and piston (Ringlands) on those motors its no surprise the same happened. 600hp is the magical number on Lsx engines, which this video pretty much shows...

Funny in the video it looks like he wasn't running anywhere near 900hp at the track considering the timeslips. Also it says he only hit 800-900 in 2013, and now in march 2013 the motor is dead, without even making it to the track. I wonder how many times he actually ran that tune before the motor exploded. Either way props to the tuner, getting even a few passes at that HP level means he had a great tune.
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