Just picked up clean turbo supra $650!!!

[cre]

-1 for the PCV delete, -1 for the evap delete, -1 for the EGR delete, -5 for the wiring, -10 for a GE block with what I presume are OEM internals (-40 if it's got OEM GE pistons), and - another 40 if they didn't install at least the factory oil cooler.

Not a terrible deal overall. You could definitely part it out for more than you paid but I wouldn't put much more into it... or you'll be in for more than it's worth real quick... There's a reason they sold it to you so cheap. I would usually rather buy a MA71 in need of a rebuild than someone else's project MA70 with a GTE swap.... They NEVER do it right and ALWAYS seem to cut corners.

[supraturbo_mk3]

So far from what I can tell he didn't try to cut corners....The Engine runs really good and he had the block machined, blue printed, and balanced.

He had the had ported and polished, ARP studs torqued to 75lbs, multi layer steel head gasket

Those are OEM internals but it's only going to be used as a daily driver

For $650 I couldn't let my brother pass on it....Like you said if need to be one could easily get far more then what was paid for......So for a daily driver I think it should serve my brother well

[cre]

If the pistons are GE you can count on things going south sooner than later (unless he put in a THICK HG)... N/A pistons like to "self ventilate" under boost... additional heat + much higher compression (especially if a stock thickness HG is used even after the block and head were shaved) + medium quality, basic alloy + no cooling from oil squirters = detonation = holes in pistons.... plenty of people have "done it right" before this guy, trust me.

IF the oil cooling is in place and either a thick HG 2mm+ or GTE pistons were installed I'd probably give it a thumbs up for a reasonable amount of upgrading and such; Still no oil squirters to cool the pistons is a negative but not as big.

Any idea what oil pump is in there?

You'd also do well to swap out the GE intake cam for a GTE cam; The GTE breathes better up top.


It'll last a little while (more if you get a proper oil cooler setup in there and no one gets the silly idea that "it'll be ok to turn up the boost just for the weekend". And thereafter you'll have a decent parts car... So I guess it's win - win; But don't get your hopes up that it's going to last for a long period of time... most N/A-Ts fail miserably and there's a reason why most people who've done them will say that they will never do another if a factory turbo option is available.

That said I'll get down off this soap box now. Good luck with the car... I'm sure he'll enjoy it.

[Awyman18]

Yea...I mean, great deal. But I always say "u pay for Wat u get for" and yea, cre is also the supra knowledge master so I would probably listen to him lol

[87hilux7mge]

for 650 i dont think its a bad deal. parts are worth a bit so thats a plus. and correct my if im wrong, but isnt the idea to create as much power as possible with the least amount of boost?

i agree the pistons will probably go south fairly quickly, but a high compression (ima guess close to my static compression ratio: 9.58:1 or a lil lower somewhere) low boost setup could potentially have more power. the 7m platform has been gone through like this before and yes, the results were....unfortunate. but i believe it could be done right, ppl have been building small block chevys, hondas etc like this for years. but not by someone willing to get rid of it so cheap. in my mind.

[cre]

Originally Posted by 87hilux7mge

but isnt the idea to create as much power as possible with the least amount of boost?

Depends on the builder's goals... but for the most part... no. A nice high power, low boost build is nice for off the line response but you can easily make up the difference in a lower compression build by upping the boost at a lesser expense with regard to reliability. With cast internals going for a high compression build is a joke and seldom anything more than a bad idea.

[87hilux7mge]

ah gotcha. yea i agree with the cast internals thing, but ive seen it done before and quite successfully.

guess it all depends on what you build it for as you said!

i read an article about boost, thermal soak etc etc. basically the lower you can run the boost, the better efficiency you can achieve.

probably more directed toward superchargers cuz thats how they work. if u can run lower boost you get less thermal buildup and soak, therefore more power potential. within a certain range of course lol. idk, too many variables.

pertaining to this article, i think that he could effectively run boost but it wont last as long as a straight turbo build.