So I'm wondering what the max RPM is for a LQ9 with a cam and Z06 springs? I've heard the truck manifolds peak at 6000-6200. With a LS6 manifold how much higher will it run? And how much can the stock internals take?
So I'm wondering what the max RPM is for a LQ9 with a cam and Z06 springs? I've heard the truck manifolds peak at 6000-6200. With a LS6 manifold how much higher will it run? And how much can the stock internals take?
'99 GMC RCSB
3" Body lift, 4" Rancho lift, Fox shocks
36" BFG All-terrains
LQ9 6.0L swap, gt2-3 cam, longtubes, LS1 fans, Nelson Performance tune
4.8 gears/Eaton posi
Built 4l65e
Custom paint, roll pan, filled tail lights, relocated tail gate handle
Future mods:
Boost!!
I'm at 6,300 w/stock intake. I am sure there are others shifting higher.
Gone, but not forgotten!
65 on stock intake...ive had it up to 6900 but im not on stock springs.
old mod list: H/C/I/N/E/G 408
new mod list: 5.3, gears/posi, mufler and tune : (
<div class='quotetop'>QUOTE(TXsilverado @ Mar 2 2007, 05:26 AM) [snapback]84988[/snapback]</div>Im at 6300 w stock intake.65 on stock intake...ive had it up to 6900 but im not on stock springs.
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DANIEL CAMMED SS 13.46 @ 98.17-- 8.58 @ 80.31
2003 Silverado SS / LQ9 6.0L / Wheatley 93 Octane Tune / 224/228 .581 .588 110lsa / Patriot Gold Dual Springs / Comp Hardened Push Rods / Circle D 3800 stall / Pacesetter LT's / 4:10 Gears / Transgo HD-2 Shift Kit / K & N Cold Air Intake / Corvette Servo / Aeroforce Interceptor / Autometer Narrorband(Wideband on the way) / Mobile 1 Synthetic / Single Chamber Flows with X Pipe / Cats Delete with Cutouts
so do the LQ9's start falling off or anything at over 6500? i doubt there is any power there to be had just wondering why you would want to twist it that high is all...
granted i want to build a LQ9 stroker motor and twist the shit out of it but thats just because i want too...lol
I am gonna be a new Daddy...
Drive it like you live hard and fast....
'91 rcsb, 4.3 V6, 700R4 trans swap, 4/6 drop rolling on 18's, roll pan, 2" cowl hood, electric fan, TBI injector spacer, K&N filter replacement, flowmaster muffler...
[Today 08:09 AM] ChevyLee: dale would make a awesome dad in law too
I've got a cam & springs. I think with rod bolts you could almost go to 7,000.
Gone, but not forgotten!
so what wold it take to make one rev 8k and stay together? steel crank, steel rods, arp bolts? and keep in mind this would be with a 4 inch stroke.
I am gonna be a new Daddy...
Drive it like you live hard and fast....
'91 rcsb, 4.3 V6, 700R4 trans swap, 4/6 drop rolling on 18's, roll pan, 2" cowl hood, electric fan, TBI injector spacer, K&N filter replacement, flowmaster muffler...
[Today 08:09 AM] ChevyLee: dale would make a awesome dad in law too
Good internal balancing and a damn good flowing set of heads.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Yeah, no way in Hell (where I live lol) those heads and intake will flow enough air to support 8000rpm
If you're serious, look into an LS6/FAST intake swap.
The superior man is modest in his speech, but exceeds in his actions. - Confucius
"He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel
'01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
'80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL
Let's face it, the red hair... makes 'em wet.
6400 seems to be the sweet spot... Stock intake, cam, springs etc
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