I need to tune my Z, I ditched the fmu that comes with the procharger as well as the piggyback fuel pump and got a high flow fuel pump and 440cc injectors, running 12psi now but thinking of going back down to 9psi b4 I build the motor. What system is better Cobb/Utec/Hypertech?

Thanks

 

Also considering osiris but am leaning to the cobb unit...

 

Uprev. all the way!

 

I like my cobb unit. Theres enough threads around here that you can search and compare the features yourself.

 

I have the UTEC unit that came with my powerlab kit. Seems to be working fine. Im very picky with idle issues and so far I have none.

 

benefit of uprev over cobb?

 

Map switching and real time tuning off the top of my head.

http://uprev.com

http://cobbtuning.com

 

Yep, plus if you go 550cc injectors on utec i hear you can have problems on cold starts and stuff.

O, and the map switching is cool because you can do it on the fly and so on.

 

So which has easier map tuning and real time... sorry im new to this

 

Hypertech is good only for a Z with no mods...not much to it. I had one and made 5 extra horsepower and the website said at least 9, so I figure it did not respond very well with the mods I had.

 

I map switch on the fly with up rev it's great and does wonders. I suggest you find a pro tuner in your area to lock a good tune to your oem system. Cobb seems ok but up rev is what I use to tune my cars

 

After mor research i may go uprev

 

How about uprev osiris?

 

One would be that Uprev isn't discontinuing the Accessport line for the G/Z.

 

I second that. Rumor has it Cobb is out of the game on the accessport tunes for g/z support. plus the software never realy was out of beta

 

Cobb has posted an offical statement to that effect on this site.

 

Yes lucky I didnt get the cobb I guess it is discontinuing... Now what system should I go with? Looks like Uprev maybe.

 

I wouldn't even think twice about up rev and the oem tuneability. As a pro tuner the access I have over the ecu is impeccable.

 

confused... which one do u suggest?

 

Uprev is the way I'd go