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9psi lq9 75mm

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Old 05-09-2011, 03:52 PM
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Default 9psi lq9 75mm

Went to another dyno day and got some new numbers

Motor is a 2003 lq9 with ls6 cam, arp rod bolts, and edelbrock pro flo..everythig else stock.
Turbo kit is a flipped truck manifold setup with s475 turbo and a/w intercooler.

Just 9psi and only 15 degrees of timing through a 4l80 and dana 60.

572rwhp unlocked and 609rwhp locked.

Ill have the dyno sheet up as soon as i get it emailed to me. I know its no record lol but im happy with the number for 9psi and cant wait till I get some head studs and turn it up to 12 psi

Just another 1k dollar junk yard motor
Old 05-09-2011, 04:33 PM
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numbers for only 9psi...i am at 32psi with my buick GN with the 231 6cyl..i am dynoing my car in NC wednesday ...hopefully to be around 600...we'll see is this lsx motor in a regal?
Old 05-09-2011, 04:48 PM
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The car is a 70 Buick Gs/gsx clone, only thing i dont like about the car is that its so heavy, 3933 with a half tank of gas.
Old 05-09-2011, 04:57 PM
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Damn... That's some serious f'ing power for a $1000 build - Haha
Old 05-14-2011, 02:15 AM
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Sweet!
Old 05-15-2011, 08:35 PM
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thats right on the money for that combo, In my GN with stock LQ4, bigger cam than you, and a s475 on 8psi it made around 610, on 12 psi it was around 685 and on 16psi (yes, i did it for 2 weeks and nothing broke) was about 720.
Old 05-16-2011, 10:45 AM
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Very nice!! Im hoping for similar #'s soon!
Old 05-16-2011, 10:59 AM
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Nice numbers. I am building an LQ9 now. Might have to throw a turbo on there.
Old 05-17-2011, 04:36 AM
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Still waiting on the graphs, but I'm saving up now to put in head studs and do 13lbs on 110 octane just for special events.

Grr...how come you only gained 35hp from 4lbs??? Something choked or restricted?
Old 05-17-2011, 04:42 AM
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wow, pretty close to same build im doing(6.0 proflo gt4276 etc). do you have any pictures or build thread on it?

great results, where are you located?
Old 05-17-2011, 06:04 AM
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I'm outside of Nashville Tennessee...I'll post some pics up later but they are all basically in the build stage so no pretty pics lol, but you'll get the idea
Old 05-17-2011, 08:37 AM
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i didnt have an intercooler, so i was running like 8* of timing. and my single disk converter was starting to slip on the dyno
Old 05-17-2011, 08:15 PM
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ended up with a 6.76 tonight at 3933 lbs...not to bad
Old 05-17-2011, 09:07 PM
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awesome, thats a pretty heavy car too. what RPM/boost are you launching at?
Old 05-17-2011, 09:21 PM
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Launching ~4500 and about 6psi...10 psi launch and I spin, I'll get some slicks eventually though
Old 05-17-2011, 09:34 PM
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Nice,what type of fuel system,pump gas?
Old 05-17-2011, 11:06 PM
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93 octane, -8 feed and return lines with dual 255's....43psi base pressure and 1:1 boost regulator
Old 05-18-2011, 04:34 AM
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i hope my truck makes anything near this! but it will be in a truck and its an lq4

what size injectors you running?
Old 05-18-2011, 05:08 AM
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Nothing wrong with the lq4....just running 60lb injectors, more than enough to blow the stock motor lol
Old 05-18-2011, 05:23 AM
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Originally Posted by buick_lsx
Nothing wrong with the lq4....just running 60lb injectors, more than enough to blow the stock motor lol
you got that right any pictures of this beast?


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