Naturally Aspirated Technical

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Forum: Naturally Aspirated Technical

For technical information about modifications/repairs to NA Supras.

  1. idle adjustment screw location /97 n/a

    does anyone know where the the idle adj. screw is to 97 MKIV .need help . smog station says 1300 rpm is too high .

    Started by sirunoj, 04-26-2017 01:04 AM
    • Replies: 1
    • Views: 135
    04-27-2017 10:15 AM Go to last post
  2. Would you buy an is300 with bad cam seals?

    Hey all. I'm looking at an 02 is300 with 153K. I have had a qualified mechanic do a PPI and he stated it was a solid car except for the seals, PS sensor, and hub bearing. The gentleman is asking $4600. He is aware of the issues and says the price is negotiable. Would you guys purchase it? And if...

    Started by AR_RaveN, 03-21-2017 10:35 AM
    • Replies: 2
    • Views: 129
    03-21-2017 11:20 AM Go to last post
  3. Brian crower cams for 2jzge

    Like the title states the Brian crower cams any one running them and did you upgrade your valve train?

    Started by defcon83, 07-02-2016 08:32 AM
    • Replies: 6
    • Views: 1,454
    03-14-2017 06:48 PM Go to last post
  4. Fastest NA 2jz powered sedan

    Just wondering what the fastest NA 2jz powered sedan is? Ive got an LX torana ( Australian) with an NA 2jz in it which has run 13.34@105.9mph, the car weighs approx 3000lbs race weight. A340e, 9 inch diff. It really needs more converter which should make it drop into the 12's easy enough ( only has...

    Started by PSILX, 01-07-2017 06:18 AM
    • Replies: 6
    • Views: 933
    01-07-2017 11:33 PM Go to last post
  5. ge block to tt head conversion cometic mls hg arp's leaking oil at the rear?

    just finished a na tt conversion head but found out oil leaking at the rear top of bellhousing could it be a bad headgasket ? car just went 5 miles

    Started by badsupra, 12-11-2016 07:22 AM
    • Replies: 2
    • Views: 1,158
    12-24-2016 06:28 PM Go to last post
  6. Smoke coming out of intake


    Started by MtnManT4R, 12-14-2016 11:07 AM
    • Replies: 7
    • Views: 1,014
    12-15-2016 10:25 PM Go to last post
  7. Maf compatability

    Hello all, I'm new with a 93 Sc300... I'm currently trying to get it running and have had very little luck so far. My current question is will a 97 MAF sensor work with my 93 SC? Any help would be greatly appreciated. So far I have done the fuel ECU bypass, fuel filter, plugs and wires and new...

    Started by MtnManT4R, 12-12-2016 02:34 PM
    • Replies: 3
    • Views: 567
    12-12-2016 05:39 PM Go to last post
  8. NAT build questions

    I recently bought a 2JZge VVTI out of a junkyard GS300 I have alot of questions about it. I have a 60mm turbo for it. 1. I read that the GE has 10:1 compression and that could be made into 8.5:1 with thicker head gasket. Im wondering weather that is worth doing? Also where I can find a head gasket...

    Started by NAT240, 09-11-2016 04:34 PM
    • Replies: 14
    • Views: 979
    09-13-2016 09:02 AM Go to last post
  9. Stock GE Igniter amperage output?

    Hey Guys, i'm going to be running a different coil on the car. And i'm trying to setup the dwell map etc. I'm using the AEM V1 currently and the coil specs are below Dwell time should be 1.8-2.8ms at 7amps, 12 volts. for full coil charge. Pertronix 60130 flame thrower coil. My question...

    Started by ShotPoopra, 08-30-2016 07:45 PM
    • Replies: 1
    • Views: 864
    09-05-2016 01:18 PM Go to last post
  10. Lexus LS400 Brake Upgrade - Everyone Should Do This!

    Feels great its a world of a difference....for the price its unbeatable. I paid: Calipers w/pads & brake line - $150.00 Rotors - $75.00 Brake Fluid - $1.99 Turned Rotors - $21.00 Out with the old:

    Started by OdyOwnage, 04-27-2008 07:35 PM
    12 Pages
    1 2 3 4 5 6 ... 12
    • Replies: 275
    • Views: 103,160
    07-02-2016 12:52 PM Go to last post
  11. Non turbo dry nos kit install

    looking if anyone has some good info on dry nos kits and how to install in supras?

    Started by I_CHOP_YOU, 09-05-2015 05:41 AM
    • Replies: 9
    • Views: 1,404
    02-02-2016 07:22 AM Go to last post
  12. what is the best inexpensive cat back exhaust for 1997 MKIV n/a

    hi , am planning to upgrade exhaust to my 1997 MKIV n/a . can anyone advise me on a decent setup not too loud and not too pricey. thanx

    Started by sirunoj, 01-21-2016 01:39 PM
    • Replies: 3
    • Views: 1,181
    01-21-2016 02:16 PM Go to last post
  13. About to order my AEM EMS V2 for my supra

    Ok, i can't find anywhere on here for even google for what i need answered. First off its a 1994 toyota supra mkiv 2jzge The ecu thats in it is a 98 ?????? The ecu is is a 2jzge - MT but it has the numbers 98. And my engine is an OBD1. So idk how that works out. But im about to choose...

    Started by KODYHUGHES, 08-24-2014 01:29 AM
    • Replies: 5
    • Views: 2,017
    12-30-2015 08:45 PM Go to last post
  14. Exclamation Driving and lost power suddenly... engine won't fire now!

    I was driving down the road, accelerating from a stop light, and suddenly lost acceleration. Car slightly lunged (if you could call it that) and I tried to shift to another gear and still had no power at all. Car would not start after that even with a jump start. I put a new battery in, as old one...

    Started by DanielSon, 11-03-2015 05:33 PM
    • Replies: 5
    • Views: 788
    12-30-2015 08:45 AM Go to last post
  15. No spark from coil, no fuel, No Link w/ OBDII code reader, no power to radio

    It's a fairly stock 1996 2JZ-GE w 90,000k original miles on it, but I did put a large stereo system in it with a capacitor. The last thing that got installed on the car prior to the "event" was a 150amp Powerhouse Racing alternator... So like when the amps hit the headlights wouldn't "dim". It's a...

    Started by pham, 08-13-2015 10:09 AM
    • Replies: 15
    • Views: 1,986
    12-30-2015 08:41 AM Go to last post
  16. How Much Time Do I have Before I Absolutely Need A Rebuild ?

    So about a year ago i finished my na-t build, car has been running great. I've been running about 15 psi for nearly the whole year. No hard launches or anything. GTE head gasket with ARP studs. All the necessary supporting fuel mods etc etc. Just today i did my random check up on the...

    Started by KODYHUGHES, 12-03-2015 08:03 PM
    • Replies: 11
    • Views: 1,409
    12-29-2015 08:34 PM Go to last post
  17. Quick question regarding an IS300

    Hey guys, Sorry if this is the wrong section but i figured it would be as good as any place to post but ill keep it quick. i have an 03 IS300, long story short a while ago the CEL came on as well as the TRAC light on the dash blinks, it was throwing a code for an o2 sensor after the Cat, i...

    Started by adamthrowsroks, 10-19-2015 04:56 PM
    • Replies: 0
    • Views: 266
    10-19-2015 04:56 PM Go to last post
  18. running really rich

    hey guys i have a 95 na 5spd shes running really rich it had a huge vacuum leak fixed that covered it but it still runs like shit throwing a lot of black smoke under acceleration anyone might know what the issue could be thanks

    Started by Boosted24, 08-22-2015 03:27 PM
    • Replies: 2
    • Views: 414
    10-03-2015 01:50 AM Go to last post
  19. Swap toyota aristo jdm 2jz gte non vvti for my toyota supra 2jz ge non vvti

    My name is carlos i have a toyota supra mk4 non turbo. I'm going to make a swap 2jz gte toyota aristo in my Supra too, and I want to know if you could help me with the ellectrical instalation because I think it's very complicated. But i want to know if the car's wiring will serve to me. I have...

    Started by Rocky219, 09-14-2015 06:41 AM
    • Replies: 4
    • Views: 1,070
    09-14-2015 11:10 AM Go to last post
  20. Angry 2JZGE w58 Supra randomly wont start + Idle issues + Driveline rattle + more pls halp!

    Rattling - ok so i got a mkiv na supra and its been very reliable for a year. Its allways had a slight rattling sound somewhere in the drivetrain at low RPMs in 2nd gear but it wasnt a big issue but now its becoming louder and the rattling is there even in 1st gear at low RPMs. Car wont Start \...

    Started by BigVSupra, 05-26-2015 07:50 AM
    • Replies: 16
    • Views: 2,452
    06-23-2015 02:53 AM Go to last post
  21. Turbo

    Ok i have a 1999 Lexus SC300 with 2JZGE VVTI, my goals are ruuning between 300 hp - 400 hp only, mainly I want this car to be a luxury sport car dd during the summer and a honda killer mainly where i live, I also have w58 tranny prolly rebuilding it too. Im not gonna go insanely crazy with boost,...

    Started by us2peeps, 05-19-2015 07:55 PM
    • Replies: 1
    • Views: 385
    05-19-2015 08:56 PM Go to last post
  22. Thumbs up 2000 lexus gs300 stock headgasket na-t single turbo 8psi what plug should i use?

    Hye i know i havent posted much on here altely as been traveling with work but i am helping a friend finish up his 2000 lexus gs300 with a small single turbo setup he is running 8psi on 93 octane. what plug's should he be using on stock compression aka heat range part number etc . Thanks Brett aka...

    Started by Xdreamer, 04-08-2015 10:32 AM
    • Replies: 2
    • Views: 1,181
    04-18-2015 12:46 PM Go to last post
  23. 2JZGE to 2JZGTE questions

    So, I have a 1996 white NA with a 5 speed. I'm a little "bored" with the power at this point, so I was wondering if I bought a GTE offline (Looking at this right now ), could I swap that into my car and keep at least for now the 5 speed and stock diff. I...

    Started by BHennessey, 04-01-2015 11:40 AM
    • Replies: 3
    • Views: 1,256
    04-01-2015 07:30 PM Go to last post
  24. Is There A Limit On The SAFC II For Injector Size ?

    Hello, recently finished my na-t supra Besides my aem ems V2. Im wondering if im wasting my time with the safc II or if there is a way to get a good smooth idle with what injectors i have. I have bosch ev14 800 cc injectors, adjustable FPR, and 320 LPH fuel pump. I was planning on just...

    Started by KODYHUGHES, 02-01-2015 06:41 PM
    • Replies: 13
    • Views: 2,134
    02-15-2015 12:11 PM Go to last post
  25. GReddy Head Gaskets

    I'm the proud new owner of an NA-T SC300 and I was told it has a 2.5mm GReddy HG. I realize this is the NA forum, but I think more of you NA guys may know about the GE gaskets. I could not find anything about GReddy ever making a 2.5, just the 2.0mm back several years ago. I really need to know if...

    Started by Turbo6PGT, 12-22-2014 12:41 PM
    • Replies: 2
    • Views: 821
    12-22-2014 03:51 PM Go to last post
  26. Aristo tt swap to n/a 5 speed, should i do it. pls help

    I have a 1996 na 5 speed jza80 which i got for a good price, it was $6700 and is mint however i want a twin turbo bad, i have been quoted a half cut aristo with a r154 box and the vvti 2jzgte for $3500, i have a mechanic with a workshop that will help put in the engine and gearbox in for free and I...

    Started by andy thomas, 12-02-2014 10:30 PM
    • Replies: 2
    • Views: 923
    12-03-2014 12:25 AM Go to last post
  27. Need help.. oil in spark plugs valve covers seem ok?

    I decided to do a full tune up on my NA. It's JDM if that makes any difference which I don't think it does. Distributor, wires, spark plugs, belts, tensioner and water pump. I got stuck try to undo the crank pulley bolt (going to try the starter method, did not come out with the impact gun) so I...

    Started by Vowels, 08-29-2014 09:17 PM
    • Replies: 12
    • Views: 3,113
    09-25-2014 08:03 AM Go to last post
  28. need some advice / oil leaking from rear of oil filter bracket

    I already have the o-ring .need some advice on easiest way to replace it. first time replacing it. does anyone know the best way to do it. any advice will be highly appreciated.

    Started by sirunoj, 09-02-2014 02:53 AM
    • Replies: 1
    • Views: 739
    09-12-2014 12:08 PM Go to last post
  29. EGR N/A Block/Removal How To~

    Well i finally have time to sit down and type out the how to on blocking you egr gases from entering your intake manifold. thus cooling the intake charge and keeping your engine internals cleaner. And along with taking the EGR pipe that blocks the flow of air inside intake manfiold removing it will...

    Started by Xdreamer, 12-30-2001 04:19 PM
    5 Pages
    1 2 3 4 5
    • Replies: 122
    • Views: 40,631
    07-25-2014 10:30 AM Go to last post
  30. master warning light issue

    Hey guys, master warning light is on for some reason and not sure why. I have searched forum and found out it can be low brake fluid or tire pressure low. But when e brake is up the light is very bright. When e brake is down its sorta dimmed a little. I haven't seen anyone have this issue with it...

    Started by Big Cap, 05-13-2014 04:46 PM
    • Replies: 9
    • Views: 7,251
    05-16-2014 01:46 PM Go to last post
  31. ABS Lateral Acceleration (Decelleration" Sensor Location

    Hey guys I'm trying to figure out where my lateral acceleration sensor is in the car, it's a 1994 NA Supra. I took the center console out since on the diagram it looked like it was under the air bag computer. found nothing. It's part number 89441. I can't find this thing anywhere! You guys...

    Started by ShotPoopra, 05-13-2014 08:01 PM
    • Replies: 4
    • Views: 969
    05-15-2014 12:53 PM Go to last post
  32. coolant temp sensor

    My coolant temp sensor connector broke due to age i have no idea what wire goes in what pin of the connector now. does order matter? or the polarity doesn't matter? I assume the ECU sends a test voltage then the ECT has a...

    Started by subeone, 03-21-2014 02:24 AM
    • Replies: 2
    • Views: 4,545
    03-27-2014 11:06 PM Go to last post
  33. Holder H1C

    Has anyone ever dealt with one? I was wondering what the power capabilities are on these turbos? I may have access to one very cheap and I'm wondering if it would be suitable for a 400whp build? Or even 500 Dangit. My auto correct changed from holset to holder. Any Mod be able to fix that for me?

    Started by CodyRolph, 03-08-2014 07:32 PM
    • Replies: 0
    • Views: 2,010
    03-08-2014 07:32 PM Go to last post
  34. NA Brakes making weird noise

    First and for most, I have searched everywhere on the forums and other sites that could possibly answer my question, but seems like everyone has a different issue other than what I'm experiencing. To start off, I am TT swapped but still on NA brakes. About 3 days ago, I noticed a weird...

    Started by BMX MOE, 04-15-2013 03:29 PM
    • Replies: 13
    • Views: 2,465
    02-24-2014 09:43 AM Go to last post
  35. Unhappy Help! MKIV Rear brake Calipers N/A to TT

    I own a 93 MKIV with high miles so i want to upgrade the Rears calipers to TT size, I already upgraded the fronts.I recently blew one of my rear calipers, I was wondering if the rear calipers of of any Lexus will fit, I also noticed the JDM Aristo calipers look identical front and rear????, the ...

    Started by james2JZTT, 10-10-2009 12:44 AM
    • Replies: 14
    • Views: 5,070
    02-24-2014 09:32 AM Go to last post

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