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kadoi

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Thanks in advance for atleast bothering to look here...i got few questions...

1. My TGP has 180,000+ miles on it and was wondering if an engine balance would be benificial.

2. I was planning on getting the heads ported and polished and dont want to wait on Jeff....where should i get this done at?

3.I was wanting to bore over .030 to help with turbo spool(planning ahead for my T3)

4. Also would like to know what you guys think I should do past this to get it into a mean machine...and i know the chip and the x-over but i was wanting to work the motor out first and getting x-over welded...thanks for any input

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Honestly, instead of doing in parts on a an old engine you should really stat from scratch.

Think about, less down time with a seperate block, all specs can be made, and easy drop afterwards.

Plus, that'll ensure clean seals, tolerances and the best bang for the buck!

 

- Erik

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so your saying buy another 3.1 turbo block and build it up instead of the one i already have...im replacing all the internals...and plus its sentimental lol thanks though

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so your saying buy another 3.1 turbo block and build it up instead of the one i already have...im replacing all the internals...and plus its sentimental lol thanks though

 

Well, yeah. From a time vs. money aspect, it may be your better choice.

But, since it's has more value to you personally, I would say do it step by step.

Plus, it's nice to see the power increase through steps and not all one package.

Go with what you want to do... and run with it! :D

 

- Erik

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If you're "sentimental" about a lump of GM iron, buy an engine stand, and leave it on there, in your garage. They're about 20-30 bucks at Autozone.

 

Buying another engine makes more sense.

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why is that...its just going to have the same setup with less miles..im still going ot bore it over ...new pistons...new rods...balance...and what not so i dont get it...its not likes its my only way of transportation...and whats with the attitude... :shock: 8) :wink:

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lol yeah im sixteen and all the money i make i can save so..yeah i make like 180 a week in the summer and like 200 a week in the winter...i bag dirt lol...but its all going towards my car...so i have the funding if i want to ..and i have things to sell....but yeah just needing some advice thanks. :)

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Okay, since you want to keep the same motor and have other means of transportation, then pull the motor and work on it all winter. Go through it completely, new everything. Do whatever you want to do to it at once. Trust me, you would get sick of takin it apart everytime you get a new thing to put on. Plus, if you do pistons/cam, etc, the motor has to be pulled. Oh, and when and if you get it done, start it while its out of the car and run it, so you know it doesnt leak or run bad. JMO

 

Robby

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why is that...its just going to have the same setup with less miles.

 

Less stress. It's good to start with a used block because it has had a chance to "settle" and it will stay true longer after any machining. In fact prior to the 70's the automakers would place the raw castings on racks outside for a year to allow them to "season". However, a block that's seen 180,000 may have settled too much as in it may have stress fractures in the main webs or between cylinders or excessive core shift. High mileage small block Chevy's are prone to eating away the thrust flange on the rear main and tearing up the bearing saddle and thrust flange on the crank. Especially those backed with a manual trans, no reason to believe the 3.1 is any different. Finding one with less miles just makes sense. If you MUST use it have it magnafluxed but if it were mine I'd just put it under the bench for old times sake and find a fresher core. I've seen very few high mile motors that were worth rebuilding even if they were running good when torn down. Unfortunately they just wear out.

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yeah but the truth is i dont want to look for a month for a tgp engine and then have to find out about its history...why would it be in the yard if it was running good? plus i know the history of my car and know that it was well taken care of...and i can see why you would say start with a new block but i just dont want to wait forever to get the block and the to piece it together

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Guest TurboSedan
so your saying buy another 3.1 turbo block and build it up instead of the one i already have...im replacing all the internals...and plus its sentimental lol thanks though

 

i wouldn't worry about finding another TGP engine, the only difference with the block is a very minor decrease in compression compared to the VIN 'T' engine...i don't think the VIN 'V' TGP engine has any more 'beef' to it. i seriously doubt the crank or internals are any different than a 3.1 VIN 'T' motor either....no one has any proof yet that i know of. i'd rebuild your current engine the way you want (have it all checked out at a good machine shop of course), or get a low mileage n/a 3.1 engine and start with that.

 

*or* - pull your TGP engine and work on it all winter like Robby said. then find a cheap good running VIN 'T' engine so you can still drive your car. either that or find a cheap winter beater while you turn your TGP engine into a monster :)

 

btw, i'd ignore any attitude anyone gives you on this forum. good luck and keep us posted.....

joshua

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Guest TurboSedan
Oh, and when and if you get it done, start it while its out of the car and run it, so you know it doesnt leak or run bad. JMO

 

Robby

 

just curious, how would you do that?

joshua

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Oh, and when and if you get it done, start it while its out of the car and run it, so you know it doesnt leak or run bad. JMO

 

Robby

 

just curious, how would you do that?

joshua

 

Okay, I forgot it was Fuel Injected and used an electric fuel pump. Sorry :oops:

 

Im was thinking of a "real" engine that didnt need a electric fuel pump. If you didnt need the electric fuel pump it would still be easy, you just need the battery, starter and wiring harness

 

Robby

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well thanks guys for the replies...found out last night from the guy that used to own the car before me that he already fixed the x-over and the car is running 12psi of boost from a custom chip and wastegate....i had on idea i just new it was fast lol :lol: but anyways he said the best time he turned was a 14.70 and i saw his timeslips...but that was before i took the factory air box out and cut off the seriously bad cat...and changed plugs and wires...he was running the bosch plantinums...but yeah suprising huh :D

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Guest TurboSedan

yeah, using a K&N cone air filter and a test pipe in place of the cat should really help along with ditching those platinum spark plugs and getting new wires. sounds like maybe a 14.5 car now or better :)

joshua

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yeah but the truth is i dont want to look for a month for a tgp engine and then have to find out about its history...why would it be in the yard if it was running good? plus i know the history of my car and know that it was well taken care of...and i can see why you would say start with a new block but i just dont want to wait forever to get the block and the to piece it together

 

The truth is, as stated above, you can't polish a turd.

 

If you can't wait a bit to get the correct/better/faster parts, you shouldn't be attempting to build it.

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I say just have your blocked checked out at a good machine shop. If it looks good no signs of serious wear shit throw some money into it and blow away the rice. By the way, cant you just hook up the electric fuel pump to the motor and start it? And doesnt the starter bolt to the tranny to start it? So if i am not wrong youd have to have the trans on the engine also. Then again im thinkin older engines so i dont know.

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