Just need a common understanding between the two.... I tried a search, and typed in every possible phrase, but noting came up comparing the two or giving pros and cons... All I want to know is before I spend 1K is which is better for the 8 and which will be better in the long run.... I just need to know what you guys would choose if you had the option... thank you again

 

Depends on what you want to do. The Int-X is the best but if your staying N/A most people say the CanZoomer will do just as well.

 

SAFC2 woot

 

if you ever plan on going FI get an interceptor. If you are staying NA a canzoomer is all you need.

 

https://www.rx8club.com/showthread.p...ight=canzoomer
view post number 8. The main issue is the CZ doesn't hold its value in low RPM's <6200. Where the Interceptopr will lock in at a specific AFR. Supposedly there is a way to make the CZ behave in the same way but I haven't found it on this board yet.

 

can the canzoomer save some fuel too? In the under 4000 rpm range?

 

You might find this interesting:

https://www.rx8club.com/showpost.php...&postcount=315

 

you cant tune with the CZ down below 4k. the PCM will just fight you

 

I really hope that is sarcasm!

 

No. Seriously avoid that thing. It might have been great on cars where the ECU doens't do alot of "learning" but not on the Rx-8. Even if you get gains give it a week and all your gains will be "learned" away.

How are people tuning the CZ from 4000 and up? I thought people tuning that low in the RPM band were having their tuning undone?

EDIT : I found it this thread has lots of info in addition to the stickys in the eManage sub forum. https://www.rx8club.com/showthread.p...3&page=1&pp=15

 

Nemesis8:

You are using the CZ to tune? Does the curve between stock and the cz tune start to change around 6500 RPM?

I read the whole CZ / emanage thread. So you really can only change the AFR at 6200 rpm.

 

I would imagine that's when it switches from open to closed loop

 

The last words from Maurice himself:

"Some of you who are tuning have posted that the car ECU "learns" a long term fuel trim and adjusts against the tuning. You are right!
BUT: The car checks AFR when it is in closed loop mode. That is below 70% throttle, and below the closed loop/open loop transition rpm. So, what IS the transition rpm?
By measurement:
1st gear: 6,200rpm
2nd gear: 5,500rpm
3rd gear: 4,800rpm
4th gear and up - same as 3rd.

So, some lessons to derive from this:
1) Tune above transition point ( 6,200) and do NOT touch the fuel/air below 6,200 unless it is only 5% or less.
2) If you want to tune down to 5,500 avoid full throttle in 1st gear below 6,200
3) If you want it tune more, and want to get around the "learned" long term trims, simply disconnect the battery ground if the ECU "learns" a fuel trim.
This returns the car to default fuel/air settings. Of course it will "learn" again, so this is not a long term solution. I installed a replacement battery ground post that has a 1/4 turn **** to disconnect. This allows for quick and easy resets.

Also, regarding weather and temperatures:
If you tune in cold weather the air is denser. When you run at a higher temp the air is less dense. That means the mixture will be a bit different. Humidity will also affect it. The car has a barometric pressure sensor as well, so it does compensate for altitude and air pressure change due to weather, however it does not have a means for detecting humidity. My advice, if doing fairly aggressive maps is to do a set for both cold/dry conditions and for warm/wet ones. Save them and use as needed."

OK?

I'm looking forward to the drive home today - got some backroads in my radar

 

i wasnt tryign to say you could use a cz to tune at 4k- only saying that it couldnt tune below that in answer to the question.

 

well thats the thing, in the near future, I plan on going FI, but I'm looking for the best possible one between the two.... I heard excellent things on the interceptor, and ok things iwth the canzoomer, but I just want to make sure what I'm doing before I spend 1K on a product... thank you all for posting up

 

O So it technically can tune that low but the ECU will just untune it.

 

You can always buy the CZ and when you are ready to go FI sell it and buy the Interceptor X... the CZ's hold their value rather well.