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> Enige Swap Question, 4g63 engine for a 4g63t
Projekt 1G
post Oct 1 2008, 11:00 AM
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im having to buy a new engine in my 94 eclipse gs, and i was looking at engines and i have found many turbo models of the engine. If i was to get a turbo model from a gst would i have to change up the drive train?
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pwee05
post Oct 1 2008, 11:55 AM
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you shouldn't
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BulletMagnet
post Oct 1 2008, 02:20 PM
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isnt the transmission for a 4g63t a little different than the trans bolted to the n/t 4g63?
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Projekt 1G
post Oct 1 2008, 10:15 PM
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would it be easier (or cheaper) to just buy a turbo and all of its little goodies then drop it in to a new engine. And the engines that i found did come with the transmission for the turbo engine
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BulletMagnet
post Oct 2 2008, 12:05 AM
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it would be both easier and cheaper to drop in a new engine and transmission alltogether, instead of rebuilding yer current engine to support a turbo. however, properly rebuilding the engine you have would yield better results (thats why this would cost more). yer choice.
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pwee05
post Oct 2 2008, 07:45 AM
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Drives: 1996 Talon AWD. Built, but no longer drives: 1997 mitsubishi eclipse RS; 1990 Talon AWD; 1995 Talon AWD, 1997 Talon AWD. Seems like a pattern
all you need are OEM 1g or 2g turbo pistons, new rings, new bearings, new gaskets and you have a 4g63T rebuilt from 4g63n/t

the blocks are exactly the same except the n/t doesnt have holes drilled in for oil squirters
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HMatt
post Oct 2 2008, 08:53 AM
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Yeah, I would do that. Get the 2g pistons. The oil squirters are better.

You'll probably also need to get a turbo ECU. You probably can just get an AFC or something, but that ECU will make your tuning (and therefore your life) much easier.
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Projekt 1G
post Oct 2 2008, 01:20 PM
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Well the bearing for my harmonic balancer are pretty much destroyed. My mechanic told me that i would be better off buying a new engine rather then sending it off to a machine shop to get repaired. So i am pretty much having to get a new engine anyway. So i guess what i am really asking is should i by the 4g63 and add turbo, or just by the T version and drop it in?...im pretty new to this, so thanks for putting up with me. lol
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pwee05
post Oct 2 2008, 02:51 PM
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um.......your "harmonic balancer" doesn't have bearings. it's a pulley. not to mention it's much better to rebuild than simply install, that way you have an engine to do what you want it to do.

soudns to me like your mechanic = dumb, and you need to find a better one before any more headaches and wasted money
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Projekt 1G
post Oct 2 2008, 03:32 PM
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lol. well that sucks. most def. finding some else. thanks a lot for the help.....damn
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pwee05
post Oct 2 2008, 04:38 PM
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sure thing. I don't mean to say he's completely dumb it sounds like he's an oldschool guy that knows alot about v8's but nothing about 4cyl. our cars just have a crank pulley, not like the harmonic balancers on the v8's
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Projekt 1G
post Oct 2 2008, 09:51 PM
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yeah, that makes sense. the crank pulley is driven by a belt right? and it keeps the engine from vibrating pretty vigorously?
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militaryman108
post Oct 3 2008, 09:20 AM
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QUOTE(BulletMagnet @ Oct 1 2008, 02:20 PM)
isnt the transmission for a 4g63t a little different than the trans bolted to the n/t 4g63?
[right][snapback]210940[/snapback][/right]


Gear ratios are a little shorter i think.
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dertoter
post Oct 3 2008, 10:12 AM
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From my understanding arent the harnass and motor mounts different? The 94 Eclipse GS is the 4G37 from what I thought or did some of the GS's come with the 4G63?
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pwee05
post Oct 3 2008, 10:16 AM
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QUOTE(Projekt 1G @ Oct 2 2008, 09:51 PM)
yeah, that makes sense. the crank pulley is driven by a belt right? and it keeps the engine from vibrating pretty vigorously?
[right][snapback]211542[/snapback][/right]

no the crank pulley is attached to and driven by the crankshaft. balancing the crankshaft, connecting rods, pistons all together and then balancing the flywheel is what keeps an engine from vibrating. in terms of the 46g3 engine there are also balance shafts to mask engine vibration
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Projekt 1G
post Oct 3 2008, 03:32 PM
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ok, the balance shaft...does that have bearings of any type working with it?
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wickedz
post Oct 4 2008, 06:21 AM
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QUOTE(dertoter @ Oct 3 2008, 10:12 AM)
From my understanding arent the harnass and motor mounts different? The 94 Eclipse GS is the 4G37 from what I thought or did some of the GS's come with the 4G63?
[right][snapback]211669[/snapback][/right]



some came with the 4g63
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pwee05