Vortech YS Trim + 348ci LS1 = 719.5rwhp!!!!!

[Pro Stock John]

Let me do a quick recap of the car's setup and the results from the last three dyno sessions:

98 Formula
9.1:1 LS6 block, 6.0 Heads, Engine built by Speed Inc.
FMS 230/236//115//+2 cam (Cam Motion)
Diamond Pistons
Eagle 6.125 rods
Stock 5.7 crankshaft
3.905 bore LS6 crate block
6.0 heads, 69CC chambers
MLS 6.0 head gaskets
Stock waterpump
Bauer Stock ported TB
Stock ported oil pump
Y/T 1.7 rockers
Comp R Lifters
Dual timing chain
Stock LS1 MAF, descreened
LS6 Intake
ARP main studs
Dave White Head studs
Griffin frontmount air/air intercooler
Vortech YS Trim
8 rib pulley setup
Custom blower brackets, tensioner, piping by SS Racing
FAST bank to bank ECU; Cartek crank signal box; LS1 Edit
Kooks 1.875>2.000 step headers, 3.5 collectors
Kooks 3.5 >3 X pipe with ATR mufflers, dumped
Turbo 400 transmission, non lockup
Yank U4000 nine inch converter
Moser nine inch rearend, 4.11 gears
Short belt, no power steering
Hooser 28x10.5x15 slicks
Mixture of VP C12 and 93 Octane
Weldon 2025 external fuel pump
Weldon regulator
Speed Inc. drag gas tank
SS Racing fuel rails

Engine, built and installed by Dan and Jim @ Speed Inc.
Dual Exhaust installed by Speed Inc.
Custom blower brackets, tensioner, and piping built and installed by Chris and Kurt Sikora @ SS Racing
FAST system purchased from Cartek, overall car has been tuned by Jim @ Speed Inc. with major input from Cartek, SS Racing and Bob Kurgan
FAST tuning support from Craig Smith @ FAST
Vortech supercharger setup designed, installed, and revised by Chris @ SS Racing and Bob Kurgan (pulley choices, location of blower, etc.)
FAST install, fuel system, custom wiring, overall engineering by Chris and Kurt Sikora @ SS Racing (www.ssracing.net)
Griffin intercooler designed by Jimmy Burns with Griffin Thermal Products
Overall package devised by me, Chris @ SS Racing, Bob Kurgan (engine displacement, blower choice, header sizes, selection of FAST system, fuel system., etc)
Thanks to John and Ricky @ Vortech Superchargers for sponsoring the project and providing support doing the project buildup



A few dyno comments:

Dyno #1
-450rwhp
-6 psi
-Slipping blower belt
-Electrical anomaly noted when datalogging

Dyno #2
-560rwhp
-14 psi
-Overly large torque converter, the old one flashed to 6900 during the pulls
-Some belt slippage noted
-Electrical anomaly largely gone

Dyno #3
-705rwhp
-Roughly 17 psi
-23 degrees of timing at WOT
-New Yank U4000 converter installed
-Belt was tightened, early pull was 666rwhp with slippage
-Pulled to 6700

**UPDATE**
Dyno #4
-719.5rwhp
-700rwtq
-17psi
-11:1 AF
-Same mix of C12 and 93 Octane

Thanks John & Ricky at Vortech!
Thanks Bob Kurgan!
Thanks Chris Sikora, SS Racing!

[regattacoupe]

HOLY COW! for us mustang guys i know there's a big differencein the LS6 intake but is there any reason you went to the LS6 block over the Ls1? I imagine the intake and heads are ported? Awesome Ride! any pics?

[Pro Stock John]

-Got an LS6 crate block for $500, and while the LS6 block is a wee bit better I would have used an LS1 block as well.
-My LS6 intake is not ported
-Heads are 6.0 heads with bigger valves flow ~298/220 at .600 lift.
-pic link here: http://www.ls1tech.com/forums/showthread.php?t=96846

[root]

Now that is an intercooler!

Very nice combo, looks like some excellent people worked on it.

Congrats.

Ian

[Hustler]

very nice!

[5150 LX]

Holy Friggin Intercooler Batman!! That thing is just plain huge, awesome #'s BTW, don't think we have any F-Body's around here quite like that.

[WOLVERINE]

nice ##

[ray95]

WOW.

Congrats Jon! Would love to see a dyno run.