Considering the mods on my car (see sigs) which one would you go with....would any ecu reflash (there are more than just these three systems) by any local performance shop that works w/ the VQ suffice.? Any one suggest a good place in Houston? Do I even need a reflash, or will resetting the ECU via battery disconnect suffice?

Bear with me, I am still fairly new...a month ago I learned about VQ3.5 initial intake, 3 weeks ago MREV's and spacers...2 weeks exhaust...Now I need to put it all together....plus I need a 12 step program for modaholics but that is for another thread.....

Edit: I did some more searching and found a place in Houston called SGP....they do technosquare.

 

Utec

 

UTEC is an engine management system that will program the ecu, right?
Is this group buy item what I want:G35 Turbo XS Utec is Instock and On Sale- Contact me for Prices: https://g35driver.com/forums/showthr...highlight=UTEC

A technosquare reflash is a one time resetting of the system, yes?

And the Apexi is like the UTEC?

Like I said, I am learning.

 

When money comes into play - if you got the dough - TS reflash and the Utec - hands down. If other things are customized - Emanage Ultimate or a custom computer altogether.

Rick

 

Rick,

I spoke w/ Shawn at SGP performance. He said that the UTEC might not work on the Rev-UP and suggested Emanagement. Do you know if it it fits?

SGP will install the exhaust and test pipes for $80 (I am spending $1700 total for the Eman. tune and exhaust install).

I need instructions on how to deal w/ the CEL issue. Shawn said "we don't do it because no one ever cares about the CE light"....lol. I care.

 

You have to care about the CEL - the car will run differently, burn raw fuel, and maybe some oil too. You need to get non-foulers and drill them out to accept the head of the O2 sensor. Don't drill them out completely - just enough to accommodate the head. Go to AutoZone and get the HELP product number 42002. The package comes with 2 and that's all you need.

Emanage Ultimate is the best out there...all you really need though is AF adjustments, unless your going FI - so save your dough and go with the Apexi - my thought. The TS reflash will raise your rev limit, get rid of your governor and other items the other piggy backs can't tough.

Rick

 

I had this same convo with SGP, and they suggested some kind of engine management to match the AF for the mods I have and they said you will see much more gains than with the stock ecu. Now for these fairly mild mods going UTEC with all the sensors harness etc seems like a lot of money to spend for me to just fix AF ratios. If you will go FI in the future then its a good solution. The EU is a little cheaper but still costs money. That leaves me with APEXI safc and the TS reflash. The TS reflash would be best but unless they do it while you car is on the dyno, you wont get a perfect tune and thats not feisable unless ur in Cali. The APEXI unit, I have heard mixed reviews, lot of ppl say that the ecu will learn over time and negate the changes made by the apexi since it sits "before" the ecu. Maybe if you send TS your dyno graphs they could tailor a tune more specific to your car. If you go either way, let me know, Id be interested to hear your experience

 

The Emanagement w/install will cost $1100 and the tune about $400. The TS reflash plus Apexi will run $900. The TS will be mailed to TS.

Shawn says that it is much better for SPG to do the ecu work while in possesion of the car which makes a lot of sense. I definately won't get a perfect tune w/ the TS mail in method. So the $200 savings isn't worth it. On the other hand, I can get an Eman. for $400...so I am paying SPG a grand for the install and tune....a little steep...but I hear their work is excellent.

I will consider Ricks suggestion of only getting the Apexi.
However, I have already sunk 43K in this car so getting the Emang is probably worth it.

Thanks Rick for the CEL advice.

Tomcat, I will PM you since I would like to speak w/ you directly.

 

There are things teh TS flash can do that the emanage cannot, to my understanding - so make sure you get what you want and need. The TS flash does certain things as well, that i am not sure Emanage does. So comapre apples to apples...feature to feature. You may want both.

Rick

 

HKS F-Con Pro if you can find a tunner? other then that.. utec

 

SPG wants more than 3K for the HKS plus install....I don't think so. I am leaning towards the Emang...it had better be the Ultimate for $1500 (it does incled a tune and dyno).

I will call you tomorrow Rick

 

Cool..I look forward to it...

 

For factors not really worth listing here, the mail-in TS reflash is probably my most viable option.

I'm wondering if the less-aggressive tune/option will be tame enough to handle days like I'm currently experiencing. It's been 100-105 for about the past two weeks now, with no significant relief within the near future. Is the less-aggressive map going to have me pinging in this kind of heat? Likewise, is it going to also be suitable to winter temps in the 20-40 degree range? It's a fairly wide range in temps to be tuned for.

I have MREV+, headers & cats. 91 octane is the highest around here. Of course, octane boosters are available at any autoparts store and might be good for a couple of points.

 

GT-RON -

Your best with the full spec - the timing map needs to be set to accommodate your specifics. I'd call them up and make sure.

Rick

 

Is it better to do the TS flash when it is hot outside or when it is cold outside? from the perspective of safety when the temperature changes and also maximum hp