[KEL]

This is my first post ever, so ill be as boring as I possibly can. :roflno:
*to skip short car history go to last paragraph*

I've recently purchased an 01 Celica GT as a fun daily driver, and would like to put a few performance mods on it. After reading a few posts and talking to a couple people, I've found its borderline illegal to attempt to mod a 1zz engine, because... well I'm not entirely sure why, its just wrongful attempts at racing.

After I got it back in running condition, it had overheating issues. I found that the radiator fan blades didn't spin, I assumed that it was relays, and I was wrong. Turned out my fan blades literally melted off the motors. (I can totally post pics later if anyones interested)

Next I ordered some pulleys from unorthodox and MWR. learned that the 1zz and 2zz water pumps are actually interchangeable, the pulleys are NOT.

I don't know much about tuning but I've decided that a new ECU will be in order before I do any major changes. Is there any good standalone ECU that can also handle an automatic transmission? does such a critter exist or is tuning an auto trans impossible? I need some education here

 

[skylin4]

Ugh... I typed out a long awesome reply but my bitch ass phone wiped it... ill rewrite it in the morning. Guys, try not to flame him in the meantime?

 

[KEL]

ha. well, ill wait for the real reply then.

ofc any and all opinions are welcome, I am curious what ppl think here, just keep in mind this car is 99.8% guaranteed never to see a track, only thing we got here is a 1/8

 

[Kevins_234]

If you want good performance from a 1zz you need force induction. An ecu upgrade will cost you $1000 without the cost of tuning which can be another few hundred dollars

 

[Texas_Toast]

Well like always your best source of cheap power is either a 2zz swap or forced induction. If you want reliability I've heard superchargers put less wear on the engine.
Its its just a daily then maybe a good suspension setup is what you need. It transforms how the car handles!

 

[Smaay]

the 1ZZ and 2ZZ water pumps are NOT interchangeable. the 1ZZ pulley is not removable like on the 2ZZ and im pretty sure the bolt pattern is not the same either. And the pulley is much bigger on the 2ZZ.

I've found its borderline illegal to attempt to mod a 1zz engine, because... well I'm not entirely sure why, its just wrongful attempts at racing.

that is 100% pure Bullshit! you can do any mod you want to a 1ZZ, it might just not give the gains you were expecting. there are lots of bolt on and engine mods for a 1ZZ. and racing a 1ZZ is just fine to, but again, its slow. so dont expect to do well unless its bracket racing. if you are consistent, then you should do well

 

[mrfunny107]

^:werd: Corolla motors are cheap all day everyday. Just have fun with the car.

 

[skylin4]

Sorry this took so long, been pretty busy. I have an 01 celica gt myself so i know exactly what kind of things youre looking at because i have come up with scheme after scheme for how to get some power out of this car. Yes there is typically a lot of backlash on this forum from people talking about doing a few mods to get power out of a 1zz.

You made the right call in thinking that you will need an Ecu upgrade. These computers are too smart for their own good and will typically dial back whatever gains you make. Ive even heard about them fighting against piggyback tunes so much that every other week the Ecu had to be reset so the car would continue to have a decent tune.

In the end because you arent racing it sounds like you are looking more for torque and a wide powerband than top end power. Typical bolt on mods will be pretty good for this: intake, headers, exhaust. However. you likely wont make more than 10 whp or 10 ft-lbs of torque from these. Considering how you need a 10% power gain to actually feel it, this really doesnt do much. And to get anything more than 155 hp at the crank you really need some fairly deep pockets.

Any more than I/H/E requires an Ecu. And for that amount of money you may as well go a bit bigger and really finish your build. In my mind you have two decent options for a daily driver: cams or a supercharger. Cams with a tune will put you up 15 whp if youre extremely lucky. They will also cost you an arm and a leg ($1800+ when you include the ecu and tune). A supercharger will put you up much farther, well into gt-s territory, but the supercharger alone can cost you 3k. In the end this is why everyone says to swap to a 2zz. when it comes to celicas you have to pay to play especially when youre talking about horsepower.

My personal advice? Dont mess with it. Do a few fun little things. make it yours. But dont dump money into it looking to roast some mustangs. These engines are extremely picky and hard to get gains on and it just wont get you very far in terms of power. I know i just became a world class hypocrite saying that but when everyone says turbo or 2zz they mean it. but turbos are bad on gas and bad for dd on a 1zz, and a 2zz swap is one hell of an undertaking if you arent used to mechanical work. And in the end there is one little asterisk that tips the scales for me and that is 1zzs burn oil. I have only heard of a few that dont and thanks to how i drive my poor little celi mine has gotten extremely bad. So bad that instead of trying to fix it and keep pride for my 1zz, i went over to the dark side and will hopefully being doing a 2zz swap in May. Its just not worth it imo. But do what you feel is right. Just dont cripple yourself chasing a celica dream.

 

[importcelica]

the 1ZZ and 2ZZ water pumps are NOT interchangeable. the 1ZZ pulley is not removable like on the 2ZZ and im pretty sure the bolt pattern is not the same either. And the pulley is much bigger on the 2ZZ.



that is 100% pure Bullshit! you can do any mod you want to a 1ZZ, it might just not give the gains you were expecting. there are lots of bolt on and engine mods for a 1ZZ. and racing a 1ZZ is just fine to, but again, its slow. so dont expect to do well unless its bracket racing. if you are consistent, then you should do well

You can use a 2zz waterpump on the 1zz motor with MWR pulley and a sized belt. I can't remember the belt size but MWR have them. I currently have a 2zz water pump in my MRS.

BTW in my opinion it is a highly recommended mod since the 1zz waterpump blades are a piece of crap made of sheet metal which can cause cavitation.

 

[importcelica]

http://www.monkeywrenchracing.com/product_info.php?cPath=43_91&products_id=1677

This is the belt you should use. It requires a combination of 2zz water pump, 2zz water pump MWR pulley (lighter and will make the pump spin a bit slower), and 1zz/2zz alternator MWR pulley.

http://www.monkeywrenchracing.com/product_info.php?cPath=43_91&products_id=1103

http://www.monkeywrenchracing.com/product_info.php?cPath=43_91&products_id=1104

You will need the waterpump pulley bolts btw. I believe they are 10mm.

 

[dead_star04]

dont mess with the cat,get a CARB intake, dont worry about legality. unless you go FI, in which case yeah it aint gonna fly
im not sure if the Apexi FC will work with an auto...
stick with bolt ons, keep it legal but make it handle better. thats about all ther eis to do on a 1zz auto without spending $$$$

 

[KEL]

the 1ZZ and 2ZZ water pumps are NOT interchangeable. the 1ZZ pulley is not removable like on the 2ZZ and im pretty sure the bolt pattern is not the same either. And the pulley is much bigger on the 2ZZ.



that is 100% pure Bullshit! you can do any mod you want to a 1ZZ, it might just not give the gains you were expecting. there are lots of bolt on and engine mods for a 1ZZ. and racing a 1ZZ is just fine to, but again, its slow. so dont expect to do well unless its bracket racing. if you are consistent, then you should do well

idk if the pulley is bigger or not, i bought the wp pulley from unorthodox,never had the original. but i really did install a 2zz pump on my 1zz engine, all that already happened

 

[KEL]

dont mess with the cat,get a CARB intake, dont worry about legality. unless you go FI, in which case yeah it aint gonna fly
im not sure if the Apexi FC will work with an auto...
stick with bolt ons, keep it legal but make it handle better. thats about all ther eis to do on a 1zz auto without spending $$$$

gotta be honest, at this point im leaning towards 2zz. but the trans and actual work ... ehh ill put it off till later. for now suspension, body, interior, i think thatll keep me busy till i figure out what to do about the engine. i dont mind spending cash on it, but i dont wanna replace anything twice.

as for legal work, ehhh i leave it to lawers

 

[dead_star04]

Come on down to alpine, I'm sure am mr2 driving inspector won't notice anything illegal


Sent from my iPhone using Tapatalk

 

[KEL]

Just dont cripple yourself chasing a celica dream.

Best advice ive ever heard.

well i guess a 2zz is in order. It just feels so wrong to swap into an engine that can just come stock..
Ill need a different Ecu for that and trans. Thats starting to sound expensive...

 

[KEL]

im going to do more homework on the auto trans thing.

Even if i get the 2zz engine and Ecu, it wont work with my auto. So i gotta figure out somethin on that. I would very much like to keep an auto trans in it, i sort of feel like an auto can be programmed to shift more consistantly that i eve could. but ill do some reading :/:

 

[skylin4]

I would very much like to keep an auto trans in it, i sort of feel like an auto can be programmed to shift more consistantly that i eve could. but ill do some reading :/:

More consistently, maybe, but it will be consistently slower. Idk exactly what the shift times are but just for example your shift time might be .65 sec ± .35 but the auto will be 1.25 sec ± .05.

Yea the auto is 90% more consistent but youll still beat it every 98 out of 100 times.

But its a daily. If you want and auto for a daily stick with that.

Why doesnt the auto trans bolt up? The c56 and c60 both bolt up so why wouldnt the autos?

 

[skylin4]

Best advice ive ever heard.

well i guess a 2zz is in order. It just feels so wrong to swap into an engine that can just come stock..
Ill need a different Ecu for that and trans. Thats starting to sound expensive...

Sorry for the double post but I thought this was necessary: instead of thinking of it as a toyota or Yamaha engine swap just think of it as a lotus engine swap... XD

I shit you not when I tell people about the 2zz im rebuilding I say its a lotus engine. 100% true but also 100% misleading. Lol

 

[jin602_05]

I came from a Celica GT Automatic. I would advise you just maintain your car, and work on wheels and suspension. Don't waste money on performance, or tuning for that matter. It's just not worth it.

Now I have a GTS, which it’s a lot fun to drive around. Either do a 2zz swap or add a Turbo kit. But since you have an Automatic, going turbo is the best way to go. Auto to manual conversion is do-able, but it’s pretty difficult if you never work on cars before. Example: taking motor out/transmission out.

 

[RGT]

Turbokits.com has a good turbo. Do not waste many on any other power mods.