Forum: Naturally Aspirated Technical

Okay guys, this is out to those of you driving the JDM Na-t's. So I sold my na-t to my buddy, he's dropping a standalone into it now instead of running the piggyback system. Now, the question is, what pin-out v.2 AEM is used? The JDM ecu is not the same as the USDM pinout. What parts, adapters,...

Abs light is on what can it be

i have a dilemma. i have an n/a swap in my s13 and need to mount my wideband's O2 sensor but not real sure where to put it. there is no guts in the cat (cut the end off the canister and took out the guts and welded the canister back together) and i'm thinking that i've found a place to put it but...

I have been looking all over the web and the forums for pictures of how to change an alternator on an 94 NA supra but I can't find any how-tos with pictures relating to this. My main concern right now is how do I loosen the automatice belt tensioner? I need pictures of where to put the wrench as...

i have a 1993.5 5 speed. i'm about to turbo it but like all of us i wanna have more top end. i'm thinking about putting in 3.73's in the rear end but i can't find any online. does anybody know a website that sells these gears or is there another way. i do know about the gs300 swap but that...

i have a 98 sc300 vvti with 251 cc injectors. i have a 3 inch intake pipe that is 9% larger than the stock 2.75 inch pipe giving me a lean condition. i had an fic to correct this but it took a dump so i am running lean. i know that the earlier n/a engines have 315 cc injectors. According to my...

OK i am going to start with it is a 1982 corolla with a 2jzge swap in it, now the questions, 1- is the distributor on this 2jzge can be run without the oem ecu, using a MSD6AL, so i can run a Fuel Only ECU? 2- what type of sensors are inside the OEM distributor on the 2jzge engine VR, Hall,...

Sounds just like when you have an old serpentine belt, My friend said it was the steering pump which i kinda agree, but I would like to know if theres a way to test the pump, it only does it the first minute i start the car, for a whole minute maybe a bit longer. my car is leaking power steering...

I have an 87 7mge and I am trying to figure out where the last few lines go so I can start it up. The first is part of the intake manifold on the back side of it. The second I believe is a coolant line coming off of the front of the head. The third is part of the heater hose or to better explain...

Hey guys, the starter moter in my 93 supra is starting to shit the bed and the only other one i can find is from a tt supra, it should got straight into my n/a 1 shouldent it? also it has started idling around 2k revs instead of about 1k, is that because of the broke starter moter or is it...

ok, my mk3 just died last night. and ive had enuph. so im looking at a 93 es 300. and i found a 2jzge and auto tranny for 400 bucks. how hard would it be to swap in? the 2jz is out of a 96 gs 300 lexus. im looking for a sleeper to build.

I just purchased a 2003 Lexus GS300 with 141k miles and recently changed spark plugs, and wires which were in bad shape. car ran fine for a day and now it bogs under load. before the change out of plugs it also misfired during low rpm. I checked for loose connections but did not find anything...

So I went to start up my car and i just revved it hard for a minute and thats when the check engine light came on. But when i shut the car off then restarted it, there was no check engine light. A turbo kit, full exhaust, and emanage system were installed in the car before i bought it. Could...

hey guys iv been searching for two days now and have read up on the different cases where people had or thought they had rod knock. well i may have a similar problem as i have diagnosed that it gets louder as RPM's increase above 2000 RPM suggesting something internal is touching where it...

Hello, I just changed my whole hub assembly and bearings in the left rear... my rear abs speed sensor is damaged and need the car running asap... Can i temporarily drive the car till i can get an abs speed sensor... short on funds and need my car running for its my daily driver... What would be...

Sup Supra Forums. I have a 93 non turbo Toyota Supra the first supra out. It has about 193,000 miles. Right now the problem is that the car won't shift into 4th gear but does shift through 1st 2nd and 3rd gear well. So whenever I drive it on the freeway the rpm will be at 4,000 rpm which is bad....

Car: 1993 Toyota Supra NA Drivetrain: Automatic Mileage: approx. 140,000-150,000 miles Color: White Car doesn't want to stay running, cranks just fine and then dies. Question: To open up the 2JZ-GE motor and change out old or worn parts and then build it up, or try and save up money for...

Is this statement valid?! :confused:

ok I spent the past 2 days reading everyones threads and came to the conclusion that I dont have a conclusion , :dunno: I just need to know more about the NA fuel pump ECU since some say it wont ever run a TT pump ..then others say " mine works !" So here's the scenario , FACT : no a tt pump will...

car will start right up after 2nd attempt, but sometimes the first time i turn the key, the dash will light up but the car wont turn over what do i need to replace or fix? thx

I have a 94 NA Supra 5 speed and it's been running like crap lately. I am not the most mechanically inclined, so I turn to the forums for help. I'm gonna try my best to explain what has been happening to my car lately. About a week ago, my car was running fine. Until every time I would go to...

Hi, Anyone upgraded their NA fuel pump with a denso TT pump?? Is it a direct replacement? someone told me the NA hanger is a bit different and needs some adjustments to fit in the denso pump, is that true? And what about the pump ECU do i need to do something with that? or just install the pump...

Hello everyone! a few months ago after summer I blew my motor on my 1995 SE. Heard a little engine knock and after a few hours it just died completely during that time i was going through my seperation/divorce and didnt have the focus nor the cash to work on my supra. Now I need to get my baby...

Hello , i have allot of experience with JZ motors mostly gte versions but this is the first time for me with this set up. I picked up a 1995 NA auto with high miles. runs good got some check engine lights squared away. Car runs and idles fine. but when giving it full throttle under 4000 rpm's ...

my clutch will start chirping now and again on idle, any ideas on how to fix it?

yeah have no idea what it is... BUT my car stays in 3rd gear all day.. doesnt shift into 4th obviously its an Auto.. the O/D button doesnt work but the MANU button does.. in 3rd driving around has the rpm above 3500k & at high speeds in around 5000k rpm. Any help is GREATLY appreciated. Thanks...

hey guys just wondering how many miles you na-t guys have on your engines ? as im looking to boost but unsure if the motor will hold up with 133,003 miles im a lil concerned although she is running great know no issues.

hi, My engine just started knocking.... only does it when i press the gas... what can be the cause of this??? check the oil levels needed an oil change so i got that done thinking that mayb the cause but its still knocking. I also stored the car away for a month because I was away for...