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2.2 / 2.5 engines and 2.4 engines

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2.5 common block turbo conversion '86 parts on a 95? Rate Topic: -----

#1 Guest_Mutant Corn_*

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Posted 19 March 2007 - 06:59 PM

If you were a registered user, you would not be seeing this!

I have an '86 G body with a T1 and a scored cylinder wall, and a '95 spirit with a good motor (2.5, common block I believe), but bad everything else. Would it be possible to pull the shortblock out of the spirit, attatch the head, electronics, etc from the Laser car, and mount it to the Laser's tranny? (even if I have to buy some stuff)

Thanks in advance for any responses.

edit: both are AT trans

This post has been edited by Mutant Corn: 19 March 2007 - 07:01 PM

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#2 User is offline   Vigo 

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Posted 19 March 2007 - 09:01 PM

you'd need to drill the oil return in the back of the block, the rods are weaker, the compression is higher, and it will run lean on the stock computer. if you dont run it hard it may be ok but this is an iffy swap if you just drop it in and run it. you CAN just bolt it right in and fire it up and drive off, except for the oil return for the turbo, but it will not run right and may not be durable.
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#3 Guest_Mutant Corn_*

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Posted 20 March 2007 - 11:33 AM

so new computer, better rods, oil return and...doesn't the '86 turbo have a water line too?
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#4 User is offline   mpgmike 

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Posted 20 March 2007 - 07:12 PM

You'll be able to see most of the mechanical differences with both blocks sitting on the floor of your shop. The oil return line is the biggie. There have been several guys that have done something similar to what you're proposing. The key is to keep boost low. No more than 7 psi. With the low boost, the higher compression isn't such an issue, and the connecting rods will hold up just fine. Keep the G electronics, but you might have to back the timing off 4 or 5 degrees to prevent detonation. Again, if you can get past the oil drain, everything else is direct bolt-up from the old engine. Drop and go!

Mike
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#5 Guest_Mutant Corn_*

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Posted 20 March 2007 - 10:57 PM

If you were a registered user, you would not be seeing this!

I think we can do the return, so that should be fine. :) I don't have the 2.2 block anymore, but I think I can find what needs to be changed. Spirit accessories or Laser?

Also, I was thinking about getting new pistons/rods while the engine was out to help with the durability and compression...good idea or no?
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#6 User is offline   mpgmike 

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Posted 21 March 2007 - 08:21 AM

Use the accessories from the car the engine will be going into. If you don't mind spending the money, go for the turbo pistons and rods in the 2.5. You can find them used on TurboDodge.com and Turbo-Mopar.com, and now Allpar has a Parts Wanted section so you can ask for them there.

Mike
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#7 User is offline   probsty 

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Posted 29 March 2007 - 02:08 AM

long as your t1 isn't a 2.5 it will work
cause pre common block the 2.5's were a taller block
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#8 User is offline   Vigo 

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Posted 29 March 2007 - 05:54 PM

If you were a registered user, you would not be seeing this!

well the common block doesnt change the way anything mounts, since hes not carb he doesnt need a mechanical fuel pump or anything, and ive had tall block and common block 2.5 in the same car on at least 2 cars.
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#9 User is offline   probsty 

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Posted 29 March 2007 - 07:54 PM

naw i miss understood at first
i thought he wanted to use the old internals in the new block
lol

carry on i am retarded lol

ok yeah a whole motor swap will work
it is just a question of which turbo you want to put on it
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