need some info on how to turbo 5mge

[85mkll]

i have done some research and from wat ive read that the blocks are all the same things that are different is the internals and that everything is compatible even the internals. wat im sayn is i dnt knw from exsperience but from reading and doing research is that everything from the 7mge will fit on the 5mge including all the internals.

[cre]

I knew a lot of the intenals were compatible (hell, the pre89 7M's ran 6M cranks and a higher rev limit due to it being lighter), I had been informed many times that the head's were different enough that parts weren't interchangeable... thanks for posting your findings! We haven't many active MKII members so it's nice to get a refresher and especially new info.

[midwestmk2]

No the intakes will not interchange.. The 7m is a 24valve motor and the 5 and 6m both use the 12 valve hemi head design.. The dizzy is also on the passenger side of the 7m versus ours on the driverside..The 6m is nothing but a 5m with a 7m crank and a different cank timing gear to make up for the stroke diference.. The intakes on the 5 and 6m are round and the 7m has a oval intake to unshroud the intake valves.. The exhaust side though is identicle.. The header will just need to be ground off a bit on the front to clear the power steering pump.. The turbo manifold should be a direct bolt on though..How you are a Admin and not know these simple things is confusing though.. Its called research and not just the model you drive. Every Supra from 1979 to 1998 should be known.. Hell do you even know what a Toyota 2000GT is? Im betting not..

[cre]

Thanks again for all the info! I do hope you decide to stick around for a while.

With the 6M I'm sure you meant it's a 5M with a 6M crank... even the 7M ran a 6M until '89.

[midwestmk2]

No i meant exactly what i said.. A 6m is a 5m with a 7m crank and different timing gear.. The crank in a 7m is just that a 7m crank.Yes it is shared by the 6m but the 6m has the 5m head.. The blocks on the M series motors all share the same blocks regadless of displacment.. Even the 2.0 2m made in 1965..No difference.. All that toyota did was enlarge the bore and stroke over the years aswell as head design .. Sure you could say that the 7m had a 6m crank in it but they are the same through and through.. Just the heads were changed along with the pistons because the 5&6m's had 2 valve releifs and the 7m's use 4 valve releifs.. Try to run a 5m head on 7m pistons and your going to bend every valve, same goes for the 7m.. Ive been here for awhile i broke my laptop and havent been on for a smooth minute but ill be checking in more often now.. I have learned so much about these cars inside and out that i get a hard on seeing one driving down the road and cry when there is one in the salvage yard..

[cre]

Originally Posted by midwestmk2

The crank in a 7m is just that a 7m crank.

I'm just talking about the cranks. Open up a pre89 7M and you'll find a 6M crank... in the '89 and later 7M's you'll find a crank that is actually stamped 7M, has a very hefty bump in rotating mass causing a 250RPM reduction in redline. I'm just surprised to learn that they used the 7M crank in another engine so long before.

Glad you're back. I felt bad letting a lot of stuff go without answers here and have been sending a lot of PM's suggesting that really big Celical Supra site.

[85mkll]

the 2000 gt is pretty much wat started it all for the supras. i know everything is compatible if u change the interals u need to change the head because 1 is 12 and other is 24 valve. the blocks are excactly the same with dif internals evu erything is interchangable and from experince u do not have to grind it down to make the header work loosen the bolts remove 1 thats .closest to the header push it forward and its good dnt waiste ur time grinding it down. ive done alot of research on this stuff. dnt be a dick to the adm. he was just tryn to get more info for the ppl that dnt have a clue wat their doing

[midwestmk2]

Not being a dick just trying to educate.. Yes the cranks were from the 6m but now adays and espeacially here in the US a 6m is hard to find considering they werent available here.. Ill give him that it did increase higher RPM and can be used as a power increase for less rotating mass but the 7m cranks are alot more plentifull.. Anyway you slice it they are still basiclly the same..

[cre]

Originally Posted by midwestmk2

Not being a dick just trying to educate..

Likewise... and learn.

Originally Posted by midwestmk2

Yes the cranks were from the 6m but now adays and espeacially here in the US a 6m is hard to find considering they werent available here

You're wrong there; It was the only crank used in the earlier 7M. The 7M crank didn't see a 7M until after the '88 production year (a bit after '89 actually). 86.5 through the middle of '89 p/n: 13411-42030. The 7M crank was used from the middle of '89 on p/n: 13411-42040. In '89 the tach's gauge face was changed to reflect the new redline, although some '89's still had the 6M crank and could be safely revved higher if not for the lowered limit in the ECU.

There's a lot of info about this throughout the Supra community as people like to debate which they should run in their build. My '88's got a 6M and I'm certain it's not a JDM swap. My friend's '88 has a 6M, his '90 has a 7M. I know plenty of people with 6Ms, they're all pre89s.

Here's a great comparison: http://www.jblmk3.com/cars/crank_comparisons.php

[midwestmk2]

Ok i stand corrected.. That was a great link.. Im adding the files to my collection right now.. I have never seen this kind of comparison done and was very insightfull.. Thanks and i apollogize if a offended anyone..