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Forced Induction Superchargers | Turbochargers | Intercoolers

4.8 + 7675= 723whp

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Old Apr 30, 2013 | 07:20 PM
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Default 4.8 + 7675= 723whp










made 722whp 550trq, converter locked on 17-18psi

2008 4.8
ls9 cam
lunati dual springs
comp push rods
head studs
ls9 head gaskets

REVMAX 3800 stall
built 4L65

dual walbro 255s
80lb injectors
stock fuel rail
magnafuel regulator
3/8 feed


precision 7675 billet wheel. .96 AR
3inch downpipe
ebay 31x12x4 intercooler
2.5 IC piping
Emusa BOV 50mm
Emusa 38mm WG
Last edited by a4ls2goat; May 1, 2013 at 01:06 AM.
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Old Apr 30, 2013 | 07:21 PM
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Sick power, this is exactly what I need for my truck. How stock is the engine?
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Old Apr 30, 2013 | 07:25 PM
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Sweet!
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Old Apr 30, 2013 | 07:25 PM
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engine is stock besides head studs/ and ls9 cam/ valve springs
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Old Apr 30, 2013 | 07:28 PM
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Nice peak but looks very laggy and down on tq?
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Old Apr 30, 2013 | 07:33 PM
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nice! just barely under where i wanna be with my built 5.7 nice heads and turbo cam..

ill be kicking myslef if i spent all this $ and can't make the power


congrats


hope the 4l65 holds up!
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Old Apr 30, 2013 | 07:37 PM
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Originally Posted by foose04
Nice peak but looks very laggy and down on tq?
im sure the cam is not helping

last turbo was down on tq too
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Old Apr 30, 2013 | 07:52 PM
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i wonder what a custom cam would do over the LS9, i know the LS9 Loves the 4.8 but doesnt work great with the other larger motors IMO

and martin has the facts to back this up on paper
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Old Apr 30, 2013 | 08:01 PM
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lol.
im sure a custom cam would help.
but in all reality, the low tq will help my trans live for a while.
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Old Apr 30, 2013 | 08:02 PM
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350HP/375TQ at 5k thru a locked 4l65 is off 300HP/300TQ. I'd look for boost leaks, exhaust leaks and lastly cam swap.

PM sent on my TU1 cam FS.
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Old Apr 30, 2013 | 08:08 PM
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i got a VA speed turbo cam VTC2 for sale if enterested
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Old Apr 30, 2013 | 08:20 PM
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Are you still running e85
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Old Apr 30, 2013 | 08:30 PM
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Are you still running e85
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Old Apr 30, 2013 | 08:39 PM
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yes, this is on e85
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Old Apr 30, 2013 | 08:39 PM
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Originally Posted by foose04
350HP/375TQ at 5k thru a locked 4l65 is off 300HP/300TQ. I'd look for boost leaks, exhaust leaks and lastly cam swap.

PM sent on my TU1 cam FS.
the pull was done at 80mph to keep it from downsifting to 2nd.
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Old Apr 30, 2013 | 08:41 PM
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Low torque numbers. Any video?
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Old Apr 30, 2013 | 08:44 PM
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working on the video now
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Old Apr 30, 2013 | 09:20 PM
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do you happen to know the injector duty at 7k rpm?
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Old Apr 30, 2013 | 09:29 PM
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Originally Posted by xdirtyx
do you happen to know the injector duty at 7k rpm?
95-96%
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Old Apr 30, 2013 | 10:43 PM
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Nice results.
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