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3.4 Whipple Build

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Old Jun 9, 2008 | 04:40 PM
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Default 3.4 Whipple Build

Sorry to get you guys excited but its not on an LSX car. A good freind of mine blew his car up 11 days after he bought it. It had 20k miles on it with a 2.2 KB, Solid Axle ect.

well instead of just fixing the short block we decided to go alittle overboard..

We did Custom Ross Pistons, stock Rod with ARP 2000 Bolt, new set of ARH headers, 3.4 Whipple, new clutch and 26 spline input shaft, Complete new fuel system ect.

car made just under 600 before. We are hoping for alittle more this time around.

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Old Jun 9, 2008 | 04:45 PM
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howd i know it was gonna be a cobra? haha good luck bud
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Old Jun 9, 2008 | 09:08 PM
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That blower is huge I love those year Cobras.

keep us posted with some numbers please.
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Old Jun 9, 2008 | 09:11 PM
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locally they took the rear plenum on the 3.4 and made it a bunch bigger for more volume...same tune same pullies picked up over 100hp...should do it!
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Old Jun 9, 2008 | 09:21 PM
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should be a sic car, good luck on the build
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Old Jun 9, 2008 | 10:15 PM
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Those 3.4 whipples are amazing.
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Old Jun 9, 2008 | 10:18 PM
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Fatty blower!
Should make some pretty crazy numbers.
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Old Jun 9, 2008 | 10:51 PM
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Forged 4.6L?

Good luck by the way. Post up when it is done.
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Old Jun 9, 2008 | 11:06 PM
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Originally Posted by daniel6718
locally they took the rear plenum on the 3.4 and made it a bunch bigger for more volume...same tune same pullies picked up over 100hp...should do it!


already done...
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Old Jun 9, 2008 | 11:07 PM
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Its a really good blower...we work with alot of those at the shop. I am actually the guy who builds the larger rear plenums.....but it looks like you have already done alittle work to the one you have I think you'll be really happy with it...800 rwhp should be no problem at all!

Chris
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Old Jun 10, 2008 | 12:21 AM
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3.4 whipple= the sickness. we have a local guy running a whipple 3.4 and hes making some damn impressive numbers compared to his old KB.
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Old Jun 10, 2008 | 07:48 AM
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Those look like RC 75# injectors

Keith
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Old Jun 10, 2008 | 08:06 AM
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that blower combo makes me think about buying a cobra as a daily.
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Old Jun 10, 2008 | 09:54 AM
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Originally Posted by gator's 99TA
that blower combo makes me think about buying a cobra as a daily.
Or a C5 Corvette.
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Old Jun 10, 2008 | 10:50 AM
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ya theres a local guy with a 3.4L on his lightning, running 10's in the 1/4 mile and low 10's wit ha small 50 shot
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Old Jun 10, 2008 | 11:01 AM
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damn, got my hopes up a bit.
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Old Jun 10, 2008 | 11:13 AM
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Originally Posted by redrumss
Forged 4.6L?

Good luck by the way. Post up when it is done.
Yes forged 4.6

Originally Posted by ls1290
Those look like RC 75# injectors

Keith
You sir are correct

Originally Posted by Hennytime
ya theres a local guy with a 3.4L on his lightning, running 10's in the 1/4 mile and low 10's wit ha small 50 shot


we are hopeing to go a tad faster... we will post numbers shortly.... Hoping to fire it up today.
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Old Jun 10, 2008 | 12:28 PM
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we are in the process of a build with the 3.4 whipple too on our cobra
this is the mod list:
Engine, Induction, Exhaust, Electronic Components, and Fuel:
5.1L Cobra Stroker Motor
Oliver Billet Rods
Forged CP Pistons
Forged Stroker Crank
Stage 3 Ported 04 Cobra Heads
Stage 3 Custom Grinded Blower Cams
Adjustable Cam Gears
Stainless Steel Valves
Comp Cams Springs
9.0:1 Compression Ratio
3.4L Whipple Supercharger (28 psi)
PSR Cold Air Intake
SCT BA3000 MAF Sensor
SCT Chip with Custom tune
Accufab Single Blade Throttle Body
03-04 Cobra Intercooler (air to water)
Custom Racing Return Style Fuel System by Performance Solutions of AZ (includes fuel pump, fpr, rails, lines)
95 lb/hr injectors
Oil pump with billet gears
SFI Innovaters West Balancer
Kooks Custom Long Tube Headers
Dr. Gas X Pipe
Mac CatBack (3")

Drivetrain and Suspension Mods:
Lightened Flywheel
Spec 3+ Clutch
Terminator T-56 Transmission
Steel Drive Shaft
PSR 8.8" Solid Rear Axle (Heavy Duty for Drag)
3.73 gears
True Track
Caster Camber Plates
Custom Coil Over Kit
Mega Bite Senior Solid Mount Pair
Solid Rear Bushings Pair
Adjustable Upper Control Arms
PSR K Member and Arms
Subframe Connectors

Cooling Mods:
PSR Head Cooling Mod
LFP Supertank Intercooler Reservoir
Fluidyne Cobra Intercooler Heat Exchanger

sorry for the lengthy post hahahaha. we are expecting to put about 850-950rwhp through a built 6 speed... trying to go for the record for the fastest street 6 speed cobra ever
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Old Jun 10, 2008 | 12:36 PM
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Originally Posted by Frans96SS
Yes forged 4.6



You sir are correct





we are hopeing to go a tad faster... we will post numbers shortly.... Hoping to fire it up today.
I think your fine. you won't be dragging a 4000lb brink
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Old Jun 10, 2008 | 01:08 PM
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Thanks for the kind words guys. I knew I was in trouble when I bought a Ford, but I made that mistake for the first time at age 17.

The car is coming along nicely. We went with a return fuel system and yes they are 75lb injectors from RC Walbro GSS342 in tank pumps with a billet fuel hat and rails from Fore. I tried out the nylon braided line for the first time and WOW it is nice stuff.

The inlet was modified.... heavily. Hopefully it'll flow something decent enough to not be a restriction. It's a Gen II rotor profile 3.4 with the revised inlet so the throttle body is the restriction. We're running a 110 JLT MAF with a GT500 sensor and a MAFIA so that won't be the restrictive point, the single blade accufab will.

The motor is pretty built. We stuck with a stock crank and rods, since they're a 4140 Kellog and H-beam Manley from the factory. The pistons are Ross custom for high boost. ARP2000 studs throughout, and ARP2000 rod bolts as well.

For anyone contemplating this blower make sure you're running a STOCK lower pulley and a 26 spline input shaft on the trans. The aftermarket lowers are causing crank snouts to snap off behind the timing gears and your motor is gone. The stock lower has a crank support built in.

We'll get some numbers hopefully soon. I'd like to see 675 on pump and 800+ on race gas and high boost.
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