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LS7 Laguna S3

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Trbulnc
JB2wheeler
coreys73chevelle
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77mali
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by 77mali Tue Mar 25, 2014 8:18 am

Nice Guna. The LS-7 is a great power plant. Welcome aboard.

Where'd you find the motor?
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Tue Mar 25, 2014 12:32 pm

Hey. The engine is out of a 2008 Z06 Corvette. I found it in Houston. The rear end got side swiped.

The LS7 is the all aluminum 7.0L or 427 cubic inch Z06 505 HP Corvette engine. It has an 8 quart dry sump oiling system, factory CNC ported heads, forged titanium connecting rods, titanium intake valves, forged crank, and some other little items. With the cam and spring kit I am using these engines usually put our around 560 RWHP.

Several stock Z06 Corvettes have run high 11's in the quarter at around 125mph. The top speed of the car is just over 190mph. Of course, all of this won't happen in a 4000lbs Laguna, but the addition of 4.10 gears and a Tremec T56 Magnum will help it get out of it's own way. Some Z06 owners have got 28mpg. Not so much with the Laguna, but we will see.

The tires to be used will be 295/35/17 on front and 335/35/17 rear.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by thatfnthing Tue Mar 25, 2014 12:35 pm

REVINKEVIN wrote:Several stock Z06 Corvettes have run high 11's in the quarter at around 125mph.  The top speed of the car is just over 190mph.  Of course, all of this won't happen in a 4000lbs Laguna...

But it sure will be fun to try! Nice score!
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Thu Mar 27, 2014 8:52 pm

Trust me, I will try.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by coreys73chevelle Fri Mar 28, 2014 1:07 am

this will be an interesting build.... like to see a 1/4 time with a factory ls7 tune. qwhat transmission you using?
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Fri Mar 28, 2014 10:05 am

It should be fun. It is to late for a factory tune. The cam and spring upgrade will require a custom tune. I am going to use a Tremec T56 Magnum with .410 gears. The car will more than likely come in right around 4000lbs. I would think that with a conservative 500rwhp the car might make it to 120mph in the quarter in the mid 12's. I think that would be very quick for this car, but the power will be there for that. I am really more interested in getting it in shape as a daily driver so I can use it for my business. I drive out west alot and I would like to see it just cruising across west Texas at 80mph. That is the speed limit on I-10 for 493 miles. When it is finished I am going to start early in the morning in Louisiana and drive the 880 miles of I-10 in one day. 880 miles and still just in one state. I wonder if that can be done in 11 hours???
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by JB2wheeler Fri Mar 28, 2014 5:11 pm

Is that a 3 speed or 4 speed trans. If it's a 3 speed, it will be screaming at 80 MPH. I have a 3.42 rear gear with a T400 trans and at 60 MPH it is loud enough you can't turn on the radio. JB
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Fri Mar 28, 2014 5:17 pm

It is the Viper spec 6-speed manual. 700lbs/ft capacity with double overdrives. With .410 gears 80mph should be around 1800rpm.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by JB2wheeler Sat Mar 29, 2014 5:56 pm

Wow, that sounds great! JB
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by Trbulnc Sat Mar 29, 2014 8:05 pm

REVINKEVIN wrote:Hey.  The engine is out of a 2008 Z06 Corvette.  I found it in Houston.  The rear end got side swiped.  

The LS7 is the all aluminum 7.0L or 427 cubic inch Z06 505 HP Corvette engine.  It has an 8 quart dry sump oiling system, factory CNC ported heads, forged titanium connecting rods, titanium intake valves, forged crank, and some other little items.  With the cam and spring kit I am using these engines usually put our around 560 RWHP.  

Several stock Z06 Corvettes have run high 11's in the quarter at around 125mph.  The top speed of the car is just over 190mph.  Of course, all of this won't happen in a 4000lbs Laguna, but the addition of 4.10 gears and a Tremec T56 Magnum will help it get out of it's own way.  Some Z06 owners have got 28mpg.  Not so much with the Laguna, but we will see.

The tires to be used will be 295/35/17 on front and 335/35/17 rear.

It's some work to put a 335/35 tire under one of these. I'm just finishing up getting it to go.

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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Sat Mar 29, 2014 9:43 pm

Yes it is. It took a good bit of tape measure work. Just getting the wheels just right is going to take some major surgery. We will see what Stockton Wheels can do. I sent the wheels in a few days ago and they are going to make some major changes to get them to fit just right. I am going to wait to lower the car until I get the tires and wheels on just to see how deep I can get them in the wheel wells.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by Trbulnc Sat Mar 29, 2014 10:11 pm

If you are not going to tuck them then you will prob be ok but if a 13" wide rim tucked will hit the inner well. Requires a minitub and frame mod.

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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by Darkcalling1 Sun Mar 30, 2014 9:37 pm

Any chance of some pics of how this is coming along engine compartment wise and trans set up? You runng the vette harness too?

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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Mon Mar 31, 2014 7:22 am

Hey.  I am still waiting on the magical 7th day so I can post pics.  I did pull out the Turbo 350 and cross member this weekend.  I have a couple of other projects and I just got one home this weekend so that took some of my time. Lets see if this link to my photo bucket account works.

https://s266.photobucket.com/user/REVINKEVIN963/library/?view=recent&page=1
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LS7 Laguna S3 - Page 2 Empty More Pics

Post by REVINKEVIN / Mr. 600+HP Tue Apr 01, 2014 9:54 am

Here are some progress pics along with a couple of other projects.

https://s266.photobucket.com/user/REVINKEVIN963/library/?sort=3&page=1
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by Darkcalling1 Tue Apr 01, 2014 10:07 am

Cool stuff

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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Wed May 14, 2014 7:09 pm

Hey.  Man have I been busy with work.  I just updated my photo bucket with a few pics of the LS7 when I got it back from the shop.  They installed the Mast Motorsport cam and spring kit along with the new Proform valve covers.  I am still waiting for my interior to be finished then I can move on to the transmission and headers.

https://s266.photobucket.com/user/REVINKEVIN963/library/?sort=3&page=1
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by driveit Mon Oct 13, 2014 1:39 pm

Looking good. Any progress since May Mr. RevinKevin?
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Thu Oct 16, 2014 9:45 pm

Hey. I have been on a 4 month project in Die-Troit. I did get my wheels in. My interior is still getting worked on so nothing new there. I bought some new S3 emblems off eBay that are real nice. I bought the 6-speed crossmember and LS motor mounts. As soon as I finish this pipeline project I am going to get some paintwork done. Thank you for asking.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by driveit Fri Oct 17, 2014 11:22 am

Good to hear you are still moving along. Hope to see some new pics on here soon. Smile
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Thu Apr 30, 2015 8:37 pm

Update: Interior has now been completed. All black. He did some nice work. I have a flight to catch this weekend so I will work on getting some new pictures of that.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by dynchel Thu Apr 30, 2015 8:39 pm

Cool man, though you abandoned us.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Thu Apr 30, 2015 9:29 pm

Not a chance. I got stuck in Detroit for 10 months. I did get to go on the Woodward Dream Cruise. Over 10,000 cars. I did not see one Laguna S3.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

Post by REVINKEVIN / Mr. 600+HP Fri Jun 19, 2015 10:51 pm

The interior is now complete. Looks real cool. I now need to sell my Yamaha 700 Raptor R EFI 4 Wheeler to get my 6-Speed. Hey drivet, help me with my new rendering.
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LS7 Laguna S3 - Page 2 Empty Re: LS7 Laguna S3

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