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Author Topic: 4 valve/cyl LS  (Read 10657 times)

Ntrain2k

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4 valve/cyl LS
« on: November 02, 2016, 06:17:50 AM »
http://mercurynewsroom.com/mercury-racing-reveals-sb4-7-0-automotive-crate-engine/

Quote
Designed, developed and manufactured in-house, the naturally aspirated, 7.0 Liter engine features Mercury Racing’s exclusive aluminum four-valve cylinder heads and dual overhead camshaft valve train integrated with an LS cylinder block packed with Mercury Racing spec hardware. This proven valve train, which greatly enhances engine durability over a standard two-valve design, enables the engine to produce a staggering 775 horsepower at 7500 RPM on pump fuel.

Too bad they will be expensive as hell.
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ratcityrex

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Re: 4 valve/cyl LS
« Reply #1 on: November 02, 2016, 02:33:56 PM »
Saw this a few months back. Pretty fucking cool but it seems people are doing these kinda numbers on 2 valve setups too.
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New setup is old bottom end with a hype r head with gsr cams. built lsv with hx35 @ 26psi on pump gas
LEED tuned! 434hp/329tq http://www.youtube.com/watch?v=_pbDXZxZdZs
http://www.realhomemadeturbo.com/forum/index.php/topic,16195.0.html

Old Setup B18a1 296hp/289tq LEED Tuned 20psi on pump! http://www.youtube.com/watch?v=2Yj-Z90j4W4   
http://www.realhomemadeturbo.com/forum/index.php/topic,205.msg2437.html#msg2437

Ntrain2k

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Re: 4 valve/cyl LS
« Reply #2 on: November 02, 2016, 06:55:59 PM »
Quote from: ratcityrex on November 02, 2016, 02:33:56 PM
Saw this a few months back. Pretty fucking cool but it seems people are doing these kinda numbers on 2 valve setups too.

750 NA on pump?
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ratcityrex

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Re: 4 valve/cyl LS
« Reply #3 on: November 08, 2016, 06:33:36 PM »
Quote from: Ntrain2k on November 02, 2016, 06:55:59 PM
Quote from: ratcityrex on November 02, 2016, 02:33:56 PM
Saw this a few months back. Pretty fucking cool but it seems people are doing these kinda numbers on 2 valve setups too.

750 NA on pump?

Missed that part....lol defiantly not on pump.
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New setup is old bottom end with a hype r head with gsr cams. built lsv with hx35 @ 26psi on pump gas
LEED tuned! 434hp/329tq http://www.youtube.com/watch?v=_pbDXZxZdZs
http://www.realhomemadeturbo.com/forum/index.php/topic,16195.0.html

Old Setup B18a1 296hp/289tq LEED Tuned 20psi on pump! http://www.youtube.com/watch?v=2Yj-Z90j4W4   
http://www.realhomemadeturbo.com/forum/index.php/topic,205.msg2437.html#msg2437

rawr

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Re: 4 valve/cyl LS
« Reply #4 on: December 12, 2016, 07:48:52 PM »
How are they driving the cams off the crank? I'd guess they're running another chain but where the cam gear covers are they look wide enough for belts and none of the accessories look like they're pushed out any farther than an ls3.
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Ntrain2k

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Re: 4 valve/cyl LS
« Reply #5 on: December 13, 2016, 06:52:33 AM »
Quote from: rawr on December 12, 2016, 07:48:52 PM
How are they driving the cams off the crank? I'd guess they're running another chain but where the cam gear covers are they look wide enough for belts and none of the accessories look like they're pushed out any farther than an ls3.



http://mercuryracing.com/automotive/
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