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**Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics**

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Old Jul 15, 2002 | 09:53 PM
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Default **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics**

Well guys It's not my motor but my friends, last year at the battle of the imports in chicago it ran a best of 13.7 at 105 and blew up on that run and Terry saw it (Turbot this is the motor out of that maroon integra) but anyways here are some pictures first to let you guys see and tell me what happened here.

I don't have much experiance in this but I think the ringlands on pistons 1 and 4 melted, take a look:


I don't really have that much experiance in rebuilding engines but I know I can do it with the skils I have right now. But anyways as fahr as the setup goes I'm going to send the motor to golden eagle to have their sleeves installed.

Now I was wondering what you guys think I should run for pistons as fahr as compression ratio and bore size I was personally thinking of doing wiesco or ross 8:5:1 pistons but I think If I did that the car would be slow as crap to start out with and I would have to compensate with lots of boost to build the power back up so I need your suggestions on the compression of this motor..??

As fahr as fuel management and turbo goes for this year we are just gona be running some 440's, intank pump, vortec fmu, fuel rail, safc, streight t3 turbo .45 a/r and .48 a/r on the exhaust side, full 3" turbo back exhaust, next years setup will be a t3/t4 setup probably 54 trim size with aem ems and 550's.

Now the head, intake manifold, throttle body has been port and polished before the car blew up and the only problem I see with it now is that when that piston melted or had whatever happen to it some of the particles got stuck on the compression chambers and here is a pic. Look at the top two valves and around.

My question on this one is can this just be polished off or what? Because we are not doing anything with the head at this time..?

Please let me know what your thoughts are on what I should do with this engine as fahr as a rebuild...

Thanks in Advance.

Adi

For a full album of quality, big pictures of the block and head go to
http://www.imagestation.com/album/?id=4291614597


[Modified by newgsr, 1:12 AM 7/17/2002]
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Old Jul 16, 2002 | 06:13 AM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (newgsr)


Nobody has a clue???

Adi
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Old Jul 16, 2002 | 06:31 AM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (newgsr)

First get rid of those Bosch Platnium Plugs run NGK. The head should be easy to clean up just be careful and not gouge the area around the vavles. As far as pistons, go with the Wiesco I have used them and they are a damn good piston, for the C/R 8.5:1 won't kill you to bad out of the hole but you notice a lag from what you are used too.

I just got done putting integrated109's Type R motor back together and it is running Darton Sleeves, JE 9.5:1 C/R, Eagle Con Rods, with RC 440's. We did notice some bottom end loss but the boost level's he can now run more than make up for it.
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Old Jul 16, 2002 | 07:12 AM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (Hyundai4


Hyundai4G63T,

I'm now starting to lean towards some 9:5:1 pistons with a little thicker cometic gasket but that won't leave me with much of a margin for error...

But than I'm thinking why not do the 8:5:1 pistons and just get a 54 trim t3/t4 next year and turn the boost up really high..

I also have another question thou, how much could I bore the block out without having to rework the chambers on the head....

Adi
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Old Jul 16, 2002 | 07:54 AM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (Hyundai4

On a honda open decked block I wouldn't go over .20 that will keep you within your torlerances and not compromise the cylinder walls, but with the boost I would recommend a Block guard and have it welded in at the machine shop while the block is being bored.
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Old Jul 16, 2002 | 08:00 AM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (Hyundai4


The block is going in to golden eagle for their sleeve treatment so could I just go with like a 82mm bore on the cylinders also can you explain to me what size pistons I would have to go with to compensate for that?

or should I just go with 81.5mm with .20 bore?

Thanks a Lot!!

Adi
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Old Jul 16, 2002 | 08:40 AM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (Hyundai4

If your getting the sleeves done with the 82mm bore just order the Wiesco, Ross, or JE pistons in a 82mm bore and you will have no problems.
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Old Jul 16, 2002 | 08:53 AM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (Hyundai4

If your getting the sleeves done with the 82mm bore just order the Wiesco, Ross, or JE pistons in a 82mm bore and you will have no problems.
Ok but if I did go with a 82mm bore would I than have to have the compression chambers reworked on the head??

Adi
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Old Jul 16, 2002 | 09:09 AM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (Hyundai4

For 82mm I don't think you have to have it reworked but Iam not a 100% sure. Let me do some research and I will be able to tell you for sure.
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Old Jul 16, 2002 | 12:11 PM
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Default Re: **Need Help rebuilding an Ls Block and building up a perfect motor setup, long *Pics** (Hyundai4

Cool!



[Modified by newgsr, 1:17 AM 7/17/2002]
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Old Jul 16, 2002 | 10:17 PM
  #11  
Adi Radoncic's Avatar
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Default Re: I just updated the pictures (newgsr)

Here are some better pictures I just updated them all and if you want the bigger and clearer go to the link at the bottom or just click here http://www.imagestation.com/album/?id=4291614597.
After taking the motor apart today I found out that the ringlands on all 4 pistons were broken..

Adi
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Old Jul 17, 2002 | 06:16 AM
  #12  
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Default Re: I just updated the pictures (newgsr)

You don't have to rework the clyinder head but I would check with Golden Eagle on thier specs to see what they recommend.
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Old Jul 17, 2002 | 07:08 AM
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Default Re: I just updated the pictures (Hyundai4G63T)


Ok I really appriciate your help, and I will check with Golden Eagle about that...

Thanks again,

Adi
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Old Jul 17, 2002 | 07:29 AM
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Default Re: I just updated the pictures (newgsr)

Not a problem. If you need anything else just let me know.
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