20082

 

I've been using the JDM one on my car since it came with the engine - no complaints, although you need a JOBD compatible code reader to communicate with it. You should try both options and do back to back dyno testing, I am pretty sure the lift engagement and rev limits are very similar between the 2 if not exactly the same.

One thing I know is that the JDM 2ZZ cars are marked to use 99 octane fuel (this is RON only, so equivalent to about 94 AKI which is what we use in North America) so maybe they have a bit more timing, as they require 94 equivalent instead of 91?

 

Has anyone ever dynoed both ECU?

JDM really limited at 190 kp/h?

 

Yes, I know those who know always just "blurt out" the 2000-01 celica gts 20082 denso. Question though with my purchase of a JDM 2zz and a 6spd came a 20060 denso. I've searched and searched and can't quite come to a decision of what is really best or the correct stats on either.
US import model for the 2000-01 celica are labelled 20082 for the standard trans
JDM models (being the pulled engine trans in japan) some (or most?) come with the 20060 ecu.

from what I can see the major difference some have talked about is the JDM has no "pollution controls", or little so adds a quick 8-10hp? (no obd2)? (this is maybe the difference between the 2zz going as low as 260hp and as high as 191hp depending on the ecu and the pollution controls settings/options?

If anyone has additional insight on the use of the JDM vs the US one please let me know.

US 20082 Denso
8250 Rev Limited, no governor for the ecu (not speed limited)
6000-6200 VVL engagement

JDM
8500 Rev Limited, governor for the ecu is 190km/h
6000-6300 VVL engagement

I could potentially keep both as I'm in Canada and the city I live in has the "smog tests" every couple years. So I'd have to swap to the US one to pass emissions?, that would be doubtful as people here import jdm cars all the time and license and smog them without changing the ecu?

dziff...
eager to get my spyder back on the road with the 2zz swapped..

Here is some emission regulations regarding motor swaps in Ontario.

https://www.ontario.ca/faq/do-hot-rods-need-drive-clean-test

Here is some information on the GReddy speed cut

http://www.frsport.com/GReddy-15590201-Speed-Cut-Controller-Nissan-Toyota-Type-A_p_9350.html

All of those first gen celica have 6200rpm lift engagement and none of them truly make more or less power then the other. There are many different standard ratings of horsepower, the jdm 2zz makes the same power as the usdm. The only difference is the matrix Corolla 2zz comes with a better intake manifold.

 

See if I would purchased his engine, drove my car down there and have you do my swap for me with your buddies engine I wouldn't be asking all these questions, I would have just handed you more money nodding my head ok....
now I'm wondering if the US model of ecu for the celica is limited? Not that I ever go that fast on the roads (even driving to Niagara trying to keep up you...) but in case I ever track the car it would be nice to know that there is a cut off before I hit it and scares the heck out of me....
dziff

 

I actually stumbled on this information from Wikipedia before this thread was posted when I was looking for something else.

The first Japanese versions were rev limited to 8600 rpm with a peak of 190 hp
https://en.wikipedia.org/wiki/Toyota_ZZ_engine

Take it for what it's worth but I think that extra 10hp peak power comes from revving the engine higher.

It would seem to me that if 8600rpms was allowed on a stock 2zz valvetrain then the 2zz can handle 8200 rpms all day every day and you will not be abusing the engine.

 

I actually stumbled on this information from Wikipedia before this thread was posted when I was looking for something else.



Take it for what it's worth but I think that extra 10hp peak power comes from revving the engine higher.

It would seem to me that if 8600rpms was allowed on a stock 2zz valvetrain then the 2zz can handle 8200 rpms all day every day and you will not be abusing the engine.

The stock 2zz peak is at 7800 rpm so the extra rev is not really the 10 hp USDM vs JDM difference.

8600rpm is the max safe RPM for the stock valve springs. I used to rev around here with stock 2zz when I had the pfc and it is all fine.

And yes, revving at 8200 rpm is nothing for the 2zz.

 

I used an external tach to temporarily determine the lift cut-in and the rev limit of the JDM ECU I am using, and I can confirm that lift cuts in between 6000 and 6100 RPM, and the rev limit is just below 8600.