MKIII (1986.5-1992)

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Forum: MKIII (1986.5-1992)

For general discussion about topics relating to the MKIII.

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  1. For technical information about modifications/repairs to the MKIII.

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    1. Info regarding swapping the JZ-series engine into the A70 chassis.

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  2. For frequently asked questions about the MKIII.

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    • Threads: 97
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  1. Sticky Thread Sticky: Your 1JZ-GTE And 2JZ-GTE Swap Guide For Dummies

    I have noticed a lot of the 1JZ information is not as accurate as it used to be. The common parts that are interchangeable with the 2JZ are the easy ones to find and we know they fit. In this thread I will list everything there is to know for us MKIII owners about doing a 1JZ-GTE and 2JZ-GTE Swap....

    Started by IBoughtASupra, 06-25-2013 10:09 PM
    2 Pages
    1 2
    • Replies: 29
    • Views: 38,607
    01-14-2017 07:29 PM Go to last post
  2. Sticky Thread Sticky: New To MKIII Section??? Rules, Info and Search Help Here.......

    I have edited and relocated some useful information to help alleviate some questions from new users. Please read below for basic information on how this forum operates and how to better access it. - Trey SEARCH HINTS/HELP- The Supraforums search feature can be very helpful in keeping the...

    Started by SupraTrey, 12-19-2012 03:43 PM
    • Replies: 1
    • Views: 12,175
    12-21-2012 04:05 AM Go to last post
  1. What turbo manifold are you running? 2jz mk3 owners!

    Im having a hard decision on what manifold to purchase for my 2jz build. My first choice was from power house racing but know for a fact it doesn't fit the chassis, second choice is a sound performance f1 still don't know the fitment. Let me know what your running and pics would be very helpful....

    Started by Supreme_Supra, 03-24-2017 01:21 PM
    • Replies: 6
    • Views: 141
    Today 01:55 AM Go to last post
  2. IC gauge removal 89 7MGTE

    Been looking for some information on how to remove the gauges from the actual IC. I know how to take out the IC but that's where everything ends. I don't see anything about removal of an actual gauge. Reason being is, I thought I had an overheating issue for two weeks. Comes to find out my gauge is...

    Started by JohnSilva82147, 03-20-2017 10:44 PM
    • Replies: 3
    • Views: 110
    Yesterday 10:48 PM Go to last post
  3. Uz mk3

    anyone still putting this V8 in the chassis anymore?

    Started by Lxne, 03-12-2017 07:16 PM
    2 Pages
    1 2
    • Replies: 34
    • Views: 783
    Yesterday 10:38 PM Go to last post
  4. Today's greatly priced purchase.

    So today, I managed to get a hit on an Apexi AVCR Type-R today. Model Number: 420-a009 I got this for 50$(I personally think this is a steal, let me know if it is or isn't in your opinion.) The head unit Instruction manual The various clips and harness for the controller here: I'm a...

    Started by MK3TargaJames, Yesterday 03:34 PM
    • Replies: 1
    • Views: 88
    Yesterday 03:56 PM Go to last post
  5. R154 question

    Was curious if anyone had a DIY on how to rip one of these apart. I need to seperate my tailshaft to swap some things around. Thanks in advance.

    Started by Bdub215, Yesterday 08:39 AM
    • Replies: 1
    • Views: 65
    Yesterday 09:45 AM Go to last post
  6. i'm Just curious on the production of the mk3

    Does anybody know how many mk3 supras where produced from 86.5-92? i use to have a mk3 with a sun roof but i wanted a targa XP hard top targa top moon roof sun roof?

    Started by will.not.bow, 11-23-2012 06:16 PM
    • Replies: 11
    • Views: 578
    03-25-2017 09:39 PM Go to last post
  7. Rod bearing play normal?

    I removed the caps and plastigauged them and they all came out right on spec. The only thing im not sure about is if this side to side play is normal? It doesnt move anywhere except side to side as the vid shows.

    Started by Jon91, 03-21-2017 05:54 PM
    • Replies: 6
    • Views: 138
    03-25-2017 12:15 PM Go to last post
  8. Long forgotten but not dead

    Just passing through to say what's up to all you hard core MKIII owners. Brewt4ce OG being replaced with new OG 80k unmolested MKIII

    Started by QWIKSTRIKE, 12-03-2016 05:52 PM
    3 Pages
    1 2 3
    • Replies: 59
    • Views: 2,841
    03-25-2017 11:55 AM Go to last post
  9. Mk3 7mgte aem v2 pnp starting issues

    I finally got my car to start on the aem v2 I got from driftmotion. After having a cam sensor that was shit I got it to sync and after a lot a lot of cranking it starts. The problem I'm having is the aem will stat sync but still takes way to long to start. once it warms up I shut it off and go to...

    Started by Jerry_BLN, 03-18-2013 08:30 PM
    • Replies: 22
    • Views: 4,057
    03-25-2017 10:27 AM Go to last post
  10. Connector pins for 7m-GTE harness

    We need to start something here for the 7M harness like the JZ engines have. The connectors on the 7M are just as crusty. Anyways, I'm trying to find the connector and pin for the Oil sender for a 7m that I'm transplanting to my JZ, the connector and pin are in foul shape from the donor...

    Started by ZaZZn, 03-12-2017 09:28 PM
    • Replies: 5
    • Views: 161
    03-25-2017 09:12 AM Go to last post
  11. JZA70 won't start, injectors pulse 4 times then stop

    I've had this car for about 18 months now, imported it a year ago. Never really had any trouble til now. Nothing new has been done to the car in quite some time. The only thing that might play a factor is an oil change the day before (messed up some wiring maybe?), but that *seems* to just be...

    Started by LF902, 03-16-2017 09:01 PM
    • Replies: 7
    • Views: 188
    03-25-2017 03:45 AM Go to last post
  12. Bolt on 4-Piston front MB brakes & 2-Piston rear Evo brakes

    I wanted to share my brake upgrade. None of this information is brand new and can be found on another forum if you want to go threw over 70 pages of info. I wanted to make a one post with all the information needed. I recommend upgrading the front and rears together to keep a balance in the braking...

    Started by survyor2, 11-23-2015 08:00 AM
    3 Pages
    1 2 3
    • Replies: 69
    • Views: 10,634
    03-23-2017 09:32 AM Go to last post
  13. WTB dash cover and door trim 88

    trying to find door molding and a dash cover. let me know if you have one in good condition.

    Started by Stroked-7m, 03-22-2017 06:30 AM
    • Replies: 0
    • Views: 23
    03-22-2017 06:30 AM Go to last post
  14. Properly swap a V160 6 speed transmission into A70 Supra.

    Hello everybody! It's been a while since I have posted some of my upgrades. Anyway, I was reading threads about swapping the V160 6 speed in the mk3 MA70 Supra running a JZ engine of course, and the information about it is quite poor , and no one HAS DONE IT PROPERLY unfortunately. I am not...

    Started by 2JZA70Claou, 12-31-2016 01:21 PM
    3 Pages
    1 2 3
    • Replies: 59
    • Views: 2,056
    03-21-2017 10:25 AM Go to last post
  15. Sheedy Built Supra

    This build has been over the course of 4 years of hard work and lots of money spent. it was posted on SM just because i didnt know of SF at the time, so ill be posting it here now too! http://www.supramania.com/forums/showthread.php?168421-7mgte-Hx35-Build lets start off at the beginning,...

    Started by sheedy126, 04-06-2016 10:00 PM
    4 Pages
    1 2 3 4
    • Replies: 77
    • Views: 4,191
    03-20-2017 09:30 PM Go to last post
  16. My Rookie Build Thread

    I bought an 88 N/A 5 spd hardtop that was a little rough for $400 several years ago. Owner told me it ran, but it did not. The steering wheel and column were straight broken off by the incredible hulk. The steering lock was on and there was no key for it, so getting it on the trailer SUCKED. ...

    Started by RasmussenBC, 03-17-2017 04:40 PM
    • Replies: 12
    • Views: 288
    03-20-2017 02:23 PM Go to last post
  17. Tremec t56 Magnum to work with speedo?

    Has anybody gotten the t56 magnum working with the oem speedo yet using some sort of adapters? Its the last thing I havent figured out and would like to keep the stock look instead of going digital.

    Started by Troniar24, 03-09-2017 07:44 PM
    • Replies: 1
    • Views: 157
    03-17-2017 05:07 PM Go to last post
  18. 110 Bosch Bypass valve

    I replaced my non functioning bypass valve with a Bosch 110 but it seems like most of the time it does not open soon enough or long enough to bypass the pressure because you can still here the air spinning the turbo backwards sometimes. Light throttle it seems to work fine, but medium to full...

    Started by jbrehmer88, 03-16-2017 01:19 PM
    • Replies: 10
    • Views: 250
    03-17-2017 02:43 PM Go to last post
  19. Odd adjustable knob under intake?

    Okay, so I was cleaning my bay with a pressure washer, due to this little surprise-I'm-going-to-pop-when-you're-coming-home-from-work Bypass hose I have have done my engine bay many times and when I started my engine to move it, I had a misfire. Teardown to the plugs began. In my plug...

    Started by MK3TargaJames, 03-16-2017 05:40 PM
    • Replies: 2
    • Views: 176
    03-17-2017 02:47 AM Go to last post
  20. Reverse Light Switch Location on 87 Turbo 184 Trans

    I am just trying to figure out WHERE the reverse switch is located on a 87 TURBO Manual 154 tranny? There USED to be a picture posted from 12-22-2010 05:50 PM from SUPRA RICH , but there is just an icon now with a X in it , and Chrome browser just shows a little icon as well . Can...

    Started by suprasvoboda, 02-13-2017 03:26 PM
    • Replies: 7
    • Views: 237
    03-16-2017 09:48 PM Go to last post
  21. Booooost!

    Hey guys I know this has been asked a million times, but my 7mgte is in the shop getting built up right now, and I'm trying to save some money. I could go forged internals or stock replacement. What my question is, is how much psi of boost do you think a brand new stock replacement bottom end could...

    Started by dufresne143, 03-14-2017 11:03 AM
    • Replies: 10
    • Views: 324
    03-16-2017 04:17 PM Go to last post
  22. My '88 Build

    Guys, I'm new to the forums and just wanted to share some fruits from my labor done last weekend... 7MGTE, 88 rebuild is in progress. (Apologies if this isn't the correct place to share this) (morning it arrived)

    Started by RAFEVO, 02-08-2017 01:23 AM
    • Replies: 8
    • Views: 587
    03-15-2017 06:06 AM Go to last post
  23. Good gasket kit

    I was looking for a good gasket kit for my 7mge. I heard victor reinz was a good kit: http://www.ebay.com/itm/Victor-Reinz-FS5769-Toyota-Supra-W-2954Cc-7Mge-Eng-86-92-Head-Gasket-Set-/222170329870?hash=item33ba62330e:g:sWAAAOSwuzRXc~qw&vxp=mtr There is this one by a seller recommended by some...

    Started by Jon91, 03-13-2017 05:39 PM
    • Replies: 7
    • Views: 171
    03-14-2017 06:39 PM Go to last post
  24. 7m GTE Oil pressure plug and connector pin?

    Anyone know where to buy new ones of this? I can't seem to find any connectors/pins for this. I'm replacing virtually every connector and pin on my harness (well have done already) and this one is eluding me.

    Started by ZaZZn, 03-12-2017 01:53 PM
    • Replies: 7
    • Views: 151
    03-14-2017 03:21 PM Go to last post
  25. Awd mk3

    hey guys, i was wondering has anyone ever tried/ been successful at a custom fab AWD setup for an mk3 supra? i know it sounds rediculous, but its an adventure i wouldnt mind embarking. yes im serious, no im not joking. seriously.

    Started by ThatOguy, 02-25-2013 05:29 PM
    2 Pages
    1 2
    • Replies: 37
    • Views: 3,010
    03-13-2017 10:01 AM Go to last post
  26. Speedomter Gear Count Riddle

    I have an R154 here that the drive speedometer gear(the teeth on the output shaft) count was 11 teeth on and the driven gear(the gear you can unbolt from the trans) count was 33 teeth. Does anyone know what rear was in this car? The trans is from an 89 car so it is either a 3.91 or 3.73. It also...

    Started by joliroger4, 02-26-2007 10:24 PM
    2 Pages
    1 2
    • Replies: 35
    • Views: 1,645
    03-12-2017 01:34 PM Go to last post
  27. Oil.....Where is it going??

    First post on here guys, be nice. I picked up an 87 7mgte supra a few days ago with 230kms. Car had sat for the past 3 months due to winter before I bought it. Oil was full when I bought it. It was a 7 hour drive home, during which I took it easy for about half and then started boosting around and...

    Started by LarsWalther, 03-02-2017 11:37 PM
    • Replies: 20
    • Views: 495
    03-09-2017 11:32 AM Go to last post
  28. JZA70 loose wiring connector ID

    Can any of you tell me what either of these is/was? I can't find their mates. Did they plug into the AT before it was swapped? Seem to be coming out of ignition harness, but I can't find them on the wiring diagram I have.

    Started by LF902, 03-09-2017 09:12 AM
    • Replies: 1
    • Views: 112
    03-09-2017 10:00 AM Go to last post
  29. 87 7mgte Different coolant sensors

    Is the coolant temp sensor for the ecu the same as the one for the cold start temp sensor? Not saying they use the same sensor, just wondering if its the same part number for both. The problem I am having is that my motor was missing both the connector and had a broken sensor for the cold start one...

    Started by jbrehmer88, 03-07-2017 11:18 AM
    • Replies: 13
    • Views: 220
    03-08-2017 04:07 PM Go to last post
  30. distributor question- 7mge/7mgte

    I believe the distributors for turbo and non turbo are identical except for the electronics...trying to put my 7mge distributor into a newer and machined turbo head did not go well. (I had blown the HG and found a turbo head for my NA Supra) It as a terribly tight fit for some reason and the...

    Started by Dire, 02-28-2017 06:41 AM
    • Replies: 3
    • Views: 192
    03-07-2017 11:57 PM Go to last post
  31. 1988 Mark 3 III Supra having trouble starting up

    Hello everyone, I am a new member to the Supra scene and a new member to the car build scene as a matter of fact. I am currently a senior in high school and need to do a project on a topic of choice. I chose the "Automotive Customization" topic. Now for my project I am attempting to rebuild my...

    Started by nekrofeelyah, 02-24-2017 01:15 PM
    • Replies: 12
    • Views: 345
    03-07-2017 06:46 PM Go to last post
  32. Running rich...Need some help here.

    Hey guys I bought a mk3 7mgte about a week ago and it smells like fuel whenever it's running. Badly. Car has zero misfire, runs otherwise pretty well. But runs terribly rich. With the windows down all I smell is fuel, even when I'm not driving it hard. Im not sure how the fuel economy usually is on...

    Started by LarsWalther, 03-07-2017 12:56 PM
    • Replies: 0
    • Views: 80
    03-07-2017 12:56 PM Go to last post
  33. 7mge

    does anyone know of a good company that has a remanufactured cylinder head in stock?

    Started by ahuynh12, 03-06-2017 10:30 AM
    • Replies: 0
    • Views: 96
    03-06-2017 10:30 AM Go to last post
  34. Drewgo Manifold Is Coming Back! Possibly Limited Quantity

    So in the process of trying to get a QSV and find a decent open manifold I was directed to the Drewgo Manifold. I've been in contact with Drewgo and we chatted for a while about the history of it, what issues there were in the past, and if it would be possible to address some of these, maybe work...

    Started by bluebullet89, 11-13-2016 09:46 PM
    • Replies: 11
    • Views: 969
    03-06-2017 03:58 AM Go to last post
  35. Thermostat housing help ASAP

    1989 7MGTE turbo, Heres my problem, switching out the thermostat and the housing was cracked so decided to replace it. Went to take all the fittings out of the housing and all but the coolant temperature sending unit broke. I am replacing them all but I need to know what is what. I have the...

    Started by JohnSilva82147, 03-03-2017 08:49 PM
    • Replies: 2
    • Views: 173
    03-04-2017 12:43 PM Go to last post

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