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: 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: 6
    • Views: 424
    03-27-2017 09:57 AM Go to last post
  2. 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: 41,069
    01-14-2017 07:29 PM Go to last post
  3. 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: 12,426
    12-21-2012 04:05 AM Go to last post
  1. 7mgte Overheating and white smoke

    Hey guys, so i finally now purchased a Supra. I got a 91 7mgte. I havent actually got it to my house yet because i need to tow it lol. But it overheats pretty bad. He hadnt started it in a long time and when he did it spit white smoke. He said the person he bought it from installed a titanium head...

    Started by Jellypig1278, Yesterday 08:49 PM
    • Replies: 2
    • Views: 50
    Today 08:29 AM Go to last post
  2. Why is is so hard to decide 2jz swap or built 7m

    Beating my head against the wall trying to make up my mind on whether I should liquidate all my 7m parts and motor and install a 2jzgte or just put a fresh built 7m back in. I got a 7m with a built head and bottom end and a good number of things to support it but not everything. But then I keep...

    Started by Mokusatsu, Yesterday 12:45 PM
    • Replies: 12
    • Views: 205
    Today 05:16 AM Go to last post
  3. 7MGTE Harness Help

    Hey guys I know I don't own a supra but I am putting in a supra motor in my 1983 Celica (7M to be exact) I just need help with the 24 pin connector If someone can please show me how the pins and the color wires that go in with those pins are suppose to go in order I would appreciate it I can't find...

    Started by RA67M_, Yesterday 03:53 AM
    • Replies: 8
    • Views: 103
    Yesterday 04:10 PM Go to last post
  4. Struggles to start when cold

    I been having this issue for some time now. I already changed the spark plugs and fuel filter and it still the same which leads to either a weak fuel pump, bad cold start valve or poor timing (maybe). It starts up fine once its already been started. To best describe this is like it wants to fire up...

    Started by Jon91, 04-28-2017 03:41 PM
    • Replies: 4
    • Views: 114
    Yesterday 03:18 PM Go to last post
  5. Aspiring owner

    Hey guy. Found an 89 NA Supra, with the 7mge. It's got a classic head gasket pop, the asking is 2500 Canadian. I have decent mechanical aptitude and a shop, but no lift. I'm new to Supra but have always loved the style. Anything would be helpful for tips.

    Started by Mstad101, 04-25-2017 08:11 PM
    • Replies: 4
    • Views: 142
    Yesterday 02:04 PM Go to last post
  6. Driftmotion 6465 turbo kit

    Hi guys. I may end up ditching the 6262 setup over the summer and head towards driftmotions 6465 turbo kit for the 7mgte. I'm wondering what your guys opinions are on this particular turbo and what sort of spool time I would be expecting from this setup. It's a nice kit because it comes with a...

    Started by Joe1234, 04-20-2017 10:36 AM
    • Replies: 13
    • Views: 402
    Yesterday 10:43 AM Go to last post
  7. Bouncy ignition timing

    Hi all. My 7m has always been this way since I first got it. I found it odd but it never seemed to affect performance or daily driving but it's something I am curious to find out. When I check my timing, when looking at the crank on the bottom with the timing numbers I notice that the little notch...

    Started by Joe1234, 04-27-2017 02:55 PM
    • Replies: 8
    • Views: 141
    04-28-2017 11:28 AM Go to last post
  8. Information Request for Uniball suspension dust boots

    Good Morning all, I was cruising through some build threads thinking about the day that I actually get to install my full Battle Version suspension (It's sitting in my car in Texas while i'm over seas) and I ran into this thread: ...

    Started by seoul4korea, 04-27-2017 06:42 PM
    • Replies: 0
    • Views: 53
    04-27-2017 06:42 PM Go to last post
  9. Need opinions

    Recently had head work done resurfacing cleaning and the shop checked if valves were sealing, my concern is the water jacket areas

    Started by Hoopasupra, 04-16-2017 09:48 PM
    • Replies: 16
    • Views: 379
    04-27-2017 12:58 PM Go to last post
  10. Request: Count your R154 ABS Speed Sensor Teeth Count - Original 3.73 models.

    Hoping someone out there that is rebuilding their R154 can count the # of teeth on their ABS tone ring. I am in process of converting my 87' to 3.73 Gearing from 3.91. The last part I need from Toyota is discontinued, can't get it anymore. The correct drive gear for the speedo. I will be...

    Started by Piratetip, 04-23-2017 04:21 PM
    • Replies: 14
    • Views: 274
    04-27-2017 07:31 AM Go to last post
  11. Newb 7m mhg questions

    Car's about 90k miles I'm planning on getting this kit from the Supra store 1.4mm tms steel head gasket, Arp studs, and gates timing belt, I'm assuming with the heads having to be machines that it won't be completely stock thickness, how much do I have to worry about compression change? Also is...

    Started by Cloudy.Mk3, 04-25-2017 06:25 AM
    • Replies: 9
    • Views: 181
    04-26-2017 05:47 PM Go to last post
  12. Headlight Wiring Problems

    Alright so I'm hoping somebody else has encountered this problem so I can get other pointers on this. Recently I bought another MK3 for cheap that was in fairly decent condition. No rust on the frame or anything so I've decided to restore it using parts from another MK3. Well, the problem I'm...

    Started by 2JaySkyel, 04-26-2017 12:43 PM
    • Replies: 2
    • Views: 63
    04-26-2017 02:11 PM Go to last post
  13. 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: 67
    • Views: 4,639
    04-26-2017 02:34 AM Go to last post
  14. Supra Mk3 1991, AEM EMS 2 .cal files needed.

    I have problems with my aem ems 2 settings and it would be nice to see other maps to compare with my own. If anyone have .cal files for that car it would be nice if you can share it. You can send it to I don't want to go dyno until i get my basic settings right. I have...

    Started by Phoubles, 04-22-2017 01:05 AM
    • Replies: 3
    • Views: 146
    04-24-2017 11:31 PM 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! lets start off at the beginning,...

    Started by sheedy126, 04-06-2016 10:00 PM
    4 Pages
    1 2 3 4
    • Replies: 91
    • Views: 6,022
    04-24-2017 06:36 PM Go to last post
  16. 7mgte clutches?

    i need some imput im new to putting stuff together and im trying to buy a new clutch and flywheel for my 7mgte build. i am wondering if anyone can help shed some light on some awesome clutches and flywheels. my budget is from 300$ to 800$ i was looking at some Mc leod and spec twin disk St? anyone...

    Started by Opticat13, 04-17-2017 07:08 PM
    • Replies: 17
    • Views: 352
    04-24-2017 09:57 AM Go to last post
  17. MK3 Supra 1JZ Swap

    I'm looking for a shifter cable for my auto transmission on my 1jz. Any suggestions or is anyone selling one?

    Started by DMK96, 04-07-2017 02:05 PM
    • Replies: 4
    • Views: 243
    04-24-2017 07:20 AM Go to last post
  18. Review: Driftmotion 3" 1jz exhaust with Vid!!

    installed the Driftmotion exhaust on my stock jza70. First mod!!!! anyways, love the sound!!! Great while driving on highway as its not annoying and doesn't have any drone. Great fitment. Came with 3 inch gaskets and hardware. The overall sound is not too loud (comparing against my 2011...

    Started by bluemax189, 04-23-2017 07:11 PM
    • Replies: 2
    • Views: 111
    04-24-2017 07:04 AM Go to last post
  19. 87 7mgte hac sensor

    I've looked at other threads but most are old and have pictures removed. Where is this sensor and do I need to do anything to it to use the lexus am and saf-c? thanks.

    Started by farristrey, 04-18-2015 12:59 PM
    • Replies: 3
    • Views: 394
    04-22-2017 11:33 PM Go to last post
  20. bring her back to life part du she will go under her own power now what?

    New year nice weather again time to start back to work. If you don't want to go through the other thread, last may we purchased a car that had sat for 4 years and we brought her back to life finally in December with much help form forum members. In Iowa that's to cold to work on a car unless you...

    Started by 1933beer, 04-08-2017 06:06 PM
    • Replies: 7
    • Views: 296
    04-22-2017 07:48 PM Go to last post
  21. Reman 7m head no RTV sealant on #1 cap!!!

    Hello guys I just bought a remanufactured 7mgte cylinder head, it just arrived today. Now the shop that sold it to me put it together already. The cams and caps are all installed but they failed to apply Rtv sealant on number one cap! I've read before that this is needed, and read that it doesn't...

    Started by Jeffersaum, 04-22-2017 03:56 PM
    • Replies: 4
    • Views: 128
    04-22-2017 06:15 PM Go to last post
  22. Starscream´s 2JZGTE VVTI build into a MK3

    Hey Guys, I thought I share my build project with you. First of all, some facts. Object: Toyota Supra MK3 Build 1991 Engine code: 7MGTE Automatic converted into 5sped R154 manual Black

    Started by Starscream, 02-01-2015 06:11 AM
    3 Pages
    1 2 3
    • Replies: 66
    • Views: 15,170
    04-21-2017 11:56 PM Go to last post
  23. Need Help Identifying These Front Bumpers

    So I came across these pics and tried to dig up some more but these are the only ones I found and was wondering if you guys know where or what they are *** I am so sorry, it's late and I'm using my phone and it won't let me upload pics, I'll upload from my laptop in the morning

    Started by WolfMxbee, 04-18-2017 01:07 AM
    • Replies: 3
    • Views: 210
    04-21-2017 10:46 PM Go to last post
  24. JZA70 Beginner Mods

    Hey everyone. I have a 1991 JZA70 Limited that's almost completely stock (stock exhaust, almost everything with the exceptions of new Enkei wheels and a pioneer head unit). Currently the car makes 233WHP with 254 Lb/Ft of torque. I've been asking around regarding "beginner mods", and a fellow...

    Started by Billy1JZ, 04-17-2017 08:58 PM
    • Replies: 4
    • Views: 213
    04-21-2017 09:58 PM Go to last post
  25. Supra MK3 Big Brake Kit Brembo 345mm - (BolT ON!) :rockon:

    This started out as a 330mm kit and then i bought the wrong part on ebay. So I ended up with s600 Brembos and I made it fit! Parts List - 2001 s600 345mm Brembo Calipers 2004 ml500 rotors, 67.1mm to 60.1mm hub centric rings 5mm wheel spacer will vary with the type of wheels you have. ...

    Started by TerrenceLP, 04-07-2017 01:13 PM
    • Replies: 12
    • Views: 546
    04-21-2017 09:49 PM Go to last post
  26. S3 V2 Short Stroke Shifer Review

    Here is my review of my newly aquired S3 V2 Short Stroke Shifter from It arrived in a plain brown box and the contents are as follows... 1) Shifter and 2) Set of directions.

    Started by davidmbedard, 08-23-2005 03:52 PM
    2 Pages
    1 2
    • Replies: 44
    • Views: 2,124
    04-21-2017 07:26 PM Go to last post
  27. 1989 na help!

    I was going to check the wire to the engine coolant temp guage and I found a wire that is completely bare...I have no idea what it goes to, it seems to be a part of the cables that go to the coolant system...It's what looks to be a white or yellow-ish cable with a black stripe. If you have any idea...

    Started by Awag1000, 04-21-2017 04:22 PM
    • Replies: 2
    • Views: 97
    04-21-2017 05:03 PM Go to last post
  28. 7M-GE horsepower out put

    I have a 1989 7M-GE and I love the engine but I don't want to go through the hassle of getting a new engine or a turbo, I want to know how much more horsepower I can squeeze out of the Naturally aspirated setup...I'm aiming for +50hp to my stock 195whp. Any ideas that don't involve a new engine or...

    Started by Awag1000, 04-15-2017 05:22 PM
    2 Pages
    1 2
    • Replies: 26
    • Views: 472
    04-21-2017 04:51 PM Go to last post
  29. Strut Tower Brace + LARGE turbo?

    Fellas... help me out here. I have a larger turbo and I am having trouble finding a strut bar that will clear it. I know some of you may say strut bars are worthless etc but trust me it makes a huge difference when the targa top is off. Pics of your setup would also help much. Thanks in advance.

    Started by E85THO, 04-14-2017 10:05 AM
    • Replies: 5
    • Views: 229
    04-19-2017 12:31 PM Go to last post
  30. Hard start up issues

    Im going to replace the cap and rotor to see if it helps. That knocking noise is from the flywheel i dont know why its making that noise either. The engine itself doesnt have any knocking noise what so ever. It also has a vibration right below my feet around the flywheel that vibrates a bit when...

    Started by Jon91, 04-18-2017 02:31 PM
    • Replies: 0
    • Views: 77
    04-18-2017 02:31 PM Go to last post
  31. Best place to order new speedometer cable?

    Title says it all. Best price I've seen so far is $106 for the long cable and $130 for both from Anyone have a better place? I'm looking for both for my 87 7mgte.

    Started by Xplodr, 04-14-2017 04:26 PM
    • Replies: 7
    • Views: 181
    04-18-2017 12:35 AM Go to last post
  32. Lots of smoke

    Ok so my engine was just recently rebuilt. New pistons/ rings, valve job, custom cams, cam gears and a couple other things that don't affect the engine. I just recently had to replace all the suspension bushings and while I was waiting for parts I decided to put on a turbo I had been waiting to put...

    Started by howellr2, 04-01-2017 07:50 PM
    • Replies: 4
    • Views: 333
    04-17-2017 07:33 PM Go to last post
  33. FFIM Madness

    I'm in search of an FFIM and don't really like the look of the Lipp cast one. does anyone know how I can get it touch with Ron R or Sethron71 (sethron PM are disabled) or anyone else who's making FFIM for the 7M. Have a specific look I'm after. PS: if anyone has one for sale or thinking of...

    Started by D-Oaten, 04-03-2017 11:49 PM
    • Replies: 13
    • Views: 588
    04-17-2017 10:47 AM Go to last post
  34. Some MK3 ask's

    Hello Supra Com, first sorry for my bad english, i give my best to make anyone to understand me. :) I have a Supra MK3, i build my cylinder head new and now i want to know how hp can i get from the ct26. 0,8-1,0 bar FCD 3'' Turbo Elbow and Downpipe

    Started by bishop, 04-14-2017 02:50 PM
    • Replies: 7
    • Views: 257
    04-17-2017 04:54 AM Go to last post
  35. Fuel pump relay?

    Anyone know which is the fuel pump relay? Im trying to prime the oil pump but dont want to flood the engine with gas. Thanks

    Started by Jon91, 04-16-2017 11:26 AM
    • Replies: 1
    • Views: 111
    04-16-2017 02:36 PM Go to last post

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