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Old 03-07-2006, 07:02 AM   #1
Takahashi_46
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Default 7MGTE and 7MGE engine blocks ???????????

hey i am new to this forum and am in the process or rebuilding my MKIII. I was just wondering if any of you guys know if the 7MGE and 7MGTE engine blocks are the same. Help would be much appreciated. thanks
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Old 03-07-2006, 12:12 PM   #2
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7mge hasn't got some oil passages that 7mgte has
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Old 03-07-2006, 01:51 PM   #3
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ok is that all though will it bolt up to every thing else? And is that a big problem or can i run the motor like that
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Old 03-08-2006, 02:14 AM   #4
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they bolt up the same the oil problem is that the 7mgte has oil squirters to lube everything up better and has holes int he block to run oil lines to the turbo. but other than that the head and everything will bolt up the same.
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Old 03-08-2006, 10:48 AM   #5
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i was asking some of the shops the same questions and they told me that i can have the squiters and the holes for the oil put in if i take the block to a machine shop is that true and if it is do any of guys know about how much that would cost. also i heard that the oil pump is different but i can that oil pump of the turbo motor right? thanks guys
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Old 03-08-2006, 03:29 PM   #6
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For some reason, I understand that the connecting rods are the biggest difference. I don't know why, but I understand that they have oil holes in them to lube the underside of the piston. I understand why, but I had a 22R Celica engine and the rods had those holes, so I don't know why they would exclude them from the N/A engine. I really don't know, but I heard that and if so that is a major difference. The other part about the different oil galleries I don't think are true. I know the block has a few plugs in the oil gallies and one is for feeding the turbo. There is a return plug in the oil pan already, at least on my 87 N/A. I also believe the pumps are the same but that is easily found out by asking to get the part numbers and see if each calls for a different number or not, I guess the same with the rods for that matter.


I can see rods being different but not a whole block, but Toyota does have a lot of money to spend on these things so maybe someone else knows for sure.

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Old 03-08-2006, 09:42 PM   #7
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o so the oil holes are not on the block they are on the connecting rods. could i just buy the robs and have them installed? and what would happen if ran my engin with out these extra oil parts what if i just ran the turbo with the regular n/a block? would i blow my motor or would it not make that much of a difference. And another question would it just be easyer to just do a full motor swap from the turbo to the n/a motor?
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Old 03-09-2006, 02:03 AM   #8
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Check the FAQs section for the thread on 7mge to 7mgte conversion. Much of the above dialog/posts have some errors and omissions.
i.e.: all connecting rods in every engine have holes in them to squirt/release some oil to lubricate the cylinder walls...true.
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Old 03-09-2006, 06:26 AM   #9
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Well I was curious about the extra oiling, so here is part of an article that mentions that.



"The turbo unit is a Toyota-made component with a mechanical wastegate that limits maximum boost to 6.8 psi. To help control heat buildup, both coolant and engine oil are circulated through the housing. The presence of an air-to-air intercooler -- also a first for Toyota -- enhances the density of the incoming charge. To further assist heat dissipation, the Turbo model is also fitted with a remote oil cooler and has individual nozzles in the cylinder block that spray oil on the piston skirts. The cam timing has been tweaked a trifle. The only other significant internal change is the installation of a new set of pistons, which lowers the compressions ratio from 9.2:1 to 8.4:1."

So there you go on part of the differences.

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Old 03-09-2006, 06:35 AM   #10
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thanks russ for the artical. So would it be easyer to just do a full motor swap from a turbo to a N/A instead to having the block machined and all that. Also if thats the case is the wireing harness the same?
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