here is something I think some of our experienced guy can look into to see what the benefits are in down loadable maps from cobb tuning. most of what I see on the link provided is for G's. but sense we have the same gene maybe there is some benefit for us to use some of the possibilities on the site. http://www.accessecu.com/accessport/infiniti/G35.html So for our resident tech guys, please chime in and let us know what benefits we can gain from this. and is this some we could do our selves with a laptop or get a tuner to do for us. I was put on to this site from Midnight performance in Sac. and they seem helpful hopefully they'll turn out to be pretty help for somethings I might want to do.
Cobb tuning maps down loadable maps...
- Thread starter Deecarp
- Start date
Not sure if the accessport will work with our fx's. I have one for my wrx and using it is pretty simple, download the map you want, plug it into your diagnostic port and upload the map to the ecu.
The over the shelf maps are not as good as getting your car protuned though which can also be done with the accessport and an accessport tuner. If you want, try emailing ed at www.eqtuning.com. He is a good accessport tuner and might have more information on if these will work with our cars.
The over the shelf maps are not as good as getting your car protuned though which can also be done with the accessport and an accessport tuner. If you want, try emailing ed at www.eqtuning.com. He is a good accessport tuner and might have more information on if these will work with our cars.
you need an acessport which is $695, but there is a different one for the g's than the z's, so my guess is there are differences to the fx too... hard to say though, I'm using a utec made specifically for a 350z but it's compatable as a piggyback, don't think flashing will be the same though. gotta ask cobb, I doubt this is much of a solution for us really tbh, but might be?
- Car
- 2007 FX35 RWD
There is one of these near me, and I emailed the guy a week ago about the AP and no response yet. They said they were going to make them for FX's back in '06. I read something on their forums, and ShadyJC was on there. If you can get them to do stuff, I will go up there for testing.
I visited my local COBB tuning (surgeline) today. The tech tried the latest Accessport on the FX but unfortunately it still doesn't recognize the ECU. :frown: I then asked about using their AWD dyno for some intake comparison runs and he said that COBB does not recommend dyno runs with any kind of intake unless you have an aftermarket engine management system, due to the possibility of unfavorably lean A/F ratios occurring.
What do you guys think of that? I was under the impression that the ECU would compensate for intake/exhaust mods to keep the A/F ratio in check...? Obviously tons of people run bolt-on mods without aftermarket EMS's, but this guy made it sound like it was an accident waiting to happen. Is that just something shops tell everyone to limit liability?
On the bright side, they had not one, but two SICK GT-R's. One in the lot and one strapped to the dyno machine. Sorry for the cell phone spy-cam pics, but I was trying not to look like a tool taking a bunch of pictures of their cars.
What do you guys think of that? I was under the impression that the ECU would compensate for intake/exhaust mods to keep the A/F ratio in check...? Obviously tons of people run bolt-on mods without aftermarket EMS's, but this guy made it sound like it was an accident waiting to happen. Is that just something shops tell everyone to limit liability?
On the bright side, they had not one, but two SICK GT-R's. One in the lot and one strapped to the dyno machine. Sorry for the cell phone spy-cam pics, but I was trying not to look like a tool taking a bunch of pictures of their cars.
- Car
- 09 FX50
theyre correct...my dyno was extremely lean
- Car
- 2003 FX35T
- Name
- Brad
This is a lil confusing to me. Somebody correct me if I'm wrong, but putting a car on a dyno is no different than driving it - and pushing to redline in third gear. I've definitely gone to redline and even bumped up against the rev limiter before I ever had my car on a dyno. You guys might have seen my dyno tune thread:
///8682
In the first post I have the baseline dyno run that absolutely does show an A/F that runs both rich and lean at different RPMs. I'm not sure how, "dangerous" those readings are. That data reflects every intake mod I have put into the car - Stillen CAI, Spectre intake tube, & plenum spacer, which I have been running with no changes to the stock ECU, except for +2 cam timing a couple months ago. I didn't notice any change in feeling from that timing mod.
When the shop adjusted the A/F and cam timing on my engine, you can see how the A/F line smooths out on my dyno sheet. I guess the only alternative to putting it up on the dyno would be to do a "canned" ECU flash like the one technosquare offers? I could see how that would put the A/F ratio into a "safer" zone, before dialing in on a dyno. But I've never heard of needing to do that before.
///8682
In the first post I have the baseline dyno run that absolutely does show an A/F that runs both rich and lean at different RPMs. I'm not sure how, "dangerous" those readings are. That data reflects every intake mod I have put into the car - Stillen CAI, Spectre intake tube, & plenum spacer, which I have been running with no changes to the stock ECU, except for +2 cam timing a couple months ago. I didn't notice any change in feeling from that timing mod.
When the shop adjusted the A/F and cam timing on my engine, you can see how the A/F line smooths out on my dyno sheet. I guess the only alternative to putting it up on the dyno would be to do a "canned" ECU flash like the one technosquare offers? I could see how that would put the A/F ratio into a "safer" zone, before dialing in on a dyno. But I've never heard of needing to do that before.
Its confusing to me as well, that's why I was wondering if it's something shops tell everyone to limit their liability.
Jumbo, did JTran say anything about recommending engine management prior to bolt on mods?
- Car
- 09 FX50
No, you dont need engine management prior to using a dyno, they are definitely saying that to limit liability
- Car
- 2003 FX35T
- Name
- Brad
No, JTran didn't mention EMS until after the Turbo install. I'm the third FX he has worked on in the last year.
Maybe true, but just guessing. They might have been trying to sell you an EMS or maybe they just don't know the FX or are gun-shy from the G that blew on them.
- Car
- 09 FX50
the Cobb hand held is worthless unless you tune it for real....my friend with the g37 made more power after he returned to the stock map
- Car
- 2007 FX35 RWD
Best thing to do is get them to tune you with a few maps, and you can switch between. Tuning yourself would be alot harder.
- Car
- 09 FX50
bubito9512
Member
correct me if im wrong lol, you could go to dyno anytime you want with factory or after market parts can't you? and how about the cobb for the 09'?