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Old 12-30-2004, 16:53   #1 (permalink)
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New GTS motor unveiled?

This is an extract from the full article --> HERE

Hate to say it but that sounds pretty dam hard core.... I hope it is too dear for HSV or even better if it comes out FPV is forced to respond with the GT motor

While its exterior dimensions and general layout are shared with the LS2, the new LS7 is based on a separate block casting and assembled by hand at GM's new Performance Build Center in Wixom MI. The punched-out aluminum block carries lightweight titanium conrods attached to aluminum flat-top pistons giving 11.0:1 compression. Six-bolt, CNC-machined, forged-steel main caps are needed to keep the assembly together.

CNC machining is also utilized on the new aluminum heads, which boast an 18% improvement in airflow over LS2 units. Nearly straight tunnel-like intake runners feed the air/fuel charge through huge 2.2-inch titanium intake valves while 1.62-inch, sodium-filled hollow exhaust valves let spent gasses back out. A hydraulic-roller cam provides a significant .591-inch lift, even before taking into account the super-high-ratio rocker arms.

As on the C6R's race engine, hydroformed four-into-one tubular headers carry the exhaust from the heads, after which it's routed into a model-unique set of catalytic converters and dual-mode mufflers. The latter include a vacuum-operated valve that stays closed at low revs to manage noise and opens at larger throttle angles for minimum backpressure. The engine is lubricated by racing-style dry-sump oiling, which ensures complete lubrication under all cornering loads. Despite the massive displacement, lightweight internals give the LS7 a 7000-rpm redline in roadgoing trim—a figure more commonly associated with multivalve twincam Fours than traditional pushrod V8s.

The LS7's significant output is channeled through a lightweight flywheel and clutch assembly feeding a strengthened version of the previous model's Tremec six-speed transaxle. This rear-mounted gearbox includes a pump that routes transmission fluid through the front radiator stack for additional cooling, after which the chilled fluid is also used to help cool the lubricant in the limited-slip diff on the way back. The latter unit features an enlarged ring-and-pinion assembly and turns upgraded halfshafts and U-joints.

Huge 325/30ZR19 rear Goodyears put the power to the ground; the matching Eagle F1 Supercars up front are 275/35ZR18s. These ride on Z06-specific split-spoke alloys measuring 18x9.5 front and an imposing 19x12 at the rear. The basic suspension layout is shared with the standard Corvette, but performance-directed upsizing of the spring rates, antiroll-bar diameters, and braking hardware sets the Z06 apart. The stopping is done by 14-inch vented and crossdrilled rotors up front and 13.4-inch pieces out back, an increase of more than an inch at both ends. New six-piston calipers in front and four-piston units in back handle the clamping needs.
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Old 12-30-2004, 20:58   #2 (permalink)
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Re: New GTS motor unveiled?

Now just imagen if Ford pulled there Finger out of there Arse and did the same things to the Boss V8, holden wouldent have a prayer.
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Old 12-30-2004, 21:04   #3 (permalink)
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Re: New GTS motor unveiled?

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Now just imagen if Ford pulled there Finger out of there Arse and did the same things to the Boss V8, holden wouldent have a prayer.
Imagine if i was the king of the world and gummy bears fell from the sky...
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Old 12-30-2004, 22:01   #4 (permalink)
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Re: New GTS motor unveiled?

so how much hp is this new motor producing?
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Old 12-30-2004, 22:54   #5 (permalink)
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Re: New GTS motor unveiled?

ls7 in zo6 tune is producing 500 hp and 475 tq
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Old 12-30-2004, 23:30   #6 (permalink)
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Re: New GTS motor unveiled?

Yeah 372 kw and it will rev to 7000 rpm!!!

It also looks like they killed my link --> THIS should work
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Old 12-31-2004, 00:02   #7 (permalink)
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Re: New GTS motor unveiled?

tell you what that is quite impressive, would be interesting if holden/hsv could build a chassis to handle that sort of pwr, god help us over on this side
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Old 12-31-2004, 00:34   #8 (permalink)
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Re: New GTS motor unveiled?

tell you what that is quite impressive, would be interesting if holden/hsv could build a chassis to handle that sort of pwr, god help us over on this side


The next model VE, is meant to be addressing issues with this.
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Old 12-31-2004, 01:17   #9 (permalink)
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Re: New GTS motor unveiled?

Quote:
Originally Posted by JamesRhadley
Yeah 372 kw and it will rev to 7000 rpm!!!

It also looks like they killed my link --> THIS should work
Typical GM 375 kw big deal. Saw on Top Gear a 400hp EVOVIII dragged off by a 1.6L s**t box. How much torque does it have & at what RPM, that's where the real world is.
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Old 12-31-2004, 02:30   #10 (permalink)
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Re: New GTS motor unveiled?

Quote:
Originally Posted by drone351
Imagine if i was the king of the world and gummy bears fell from the sky...
Hahahahaha
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