[tennis_pr0]

I will be rubbing cobb stage 1 sport on my stock 335. I always use 93 octane, but for this stage it calls for 91. Is it ok if ibuse 93 for this stage?

[KMEninety335]

always fine if you use something better. You can run sport or aggressive with 93. Just data log it to make sure everything is running silky smooth.

[eric@helix]

Originally Posted by KMEninety335

always fine if you use something better. You can run sport or aggressive with 93. Just data log it to make sure everything is running silky smooth.

^This^

[JAL0988]

Run aggressive if you have access to 93 and have fun

[JStang]

Start with the Drive map on 91 octane and log. If there are no timing corrections jump up to the Sport Map. If that map looks happy go to aggressive. This would be a cautious approach.

Have you changed your spark plugs recently?

Originally Posted by JStang

Start with the Drive map on 91 octane and log. If there are no timing corrections jump up to the Sport Map. If that map looks happy go to aggressive. This would be a cautious approach.

Have you changed your spark plugs recently?

^ this. Pretty much common sense to start slow and work your way up after logging.

[tennis_pr0]

All my spark plugs were changed 4k miles ago..

[tennis_pr0]

How much of a difference is there between regular stage 1 and aggressive?

[E90Company]

There is no regular. There are Drive, Sport, and Agressive maps. If you have 93 octane run stage 1 Sport, log, if all is good then go to Agressive. I use ATR to fine tune my maps, but if you arn't willing to do so contact a protuner.

[sickem]

Originally Posted by E90Company

There is no regular. There are Drive, Sport, and Agressive maps. If you have 93 octane run stage 1 Sport, log, if all is good then go to Agressive. I use ATR to fine tune my maps, but if you arn't willing to do so contact a protuner.

I already told him this in one of the eleven threads he's started in the last 36 hours. I'm by no means an expert on this stuff but I do know how to

[srcstc]

They mean 91 as a minimum. More is better.

[Torgus]

Hmm I never bothered logging on stage 1 aggressive. Would the car bog or would I notice anything if it wasn't running right/smoothly? Doesn't the car automatically protect itself?

I guess I should figure out how to log with my cobb...

[Maxspeed]

Higher octane is usually a good thing. Low octane could result in knocking. Also, make sure you have either a drop-in filter, or dual cone intake. The extra flow over stock makes the car happy.
+1 on what the other guys said. You are definitely better of starting with the drive map and logging, and then going to sport, then aggressive if everything looks good in the logs. Have fun!

[Ænema]

Originally Posted by Torgus

Hmm I never bothered logging on stage 1 aggressive. Would the car bog or would I notice anything if it wasn't running right/smoothly? Doesn't the car automatically protect itself?

I guess I should figure out how to log with my cobb...

If your car/fuel isn't liking the tune then it will more than likely cause a couple issues. Throttle closure caused by overboosting or excessive timing corrections. Both of which can be felt while driving if severe enough. Throttle closures can feel like a "bucking" sensation when the throttle plate slams shut and timing corrections will cause the car to fell less powerful. However, datalogging is the only way to be sure if there is a problem or not.


As far as the OP is concerned, I actually disagree with the consensus a little bit. I recommend just loading the map appropriate for your fuel(aggressive for 93) and let it adapt for a day or so and then grab a couple datalogs. The OTS maps are pretty conservative and there is no risk of engine damage in this scenario. If it is a little too much then flash over to sport and log.

[douwe22]

Originally Posted by COBBTT

Run aggressive if you have access to 93 and have fun

[tennis_pr0]

At VAC now and getting the cobb installed and also getting a drop in air filter. Very excited! Steve at VAC recommended fusing stage 1 sport for nice daily driving smooth power. I will post back after my first drive

[Torgus]

Originally Posted by Ænema

If your car/fuel isn't liking the tune then it will more than likely cause a couple issues. Throttle closure caused by overboosting or excessive timing corrections. Both of which can be felt while driving if severe enough. Throttle closures can feel like a "bucking" sensation when the throttle plate slams shut and timing corrections will cause the car to fell less powerful. However, datalogging is the only way to be sure if there is a problem or not.


As far as the OP is concerned, I actually disagree with the consensus a little bit. I recommend just loading the map appropriate for your fuel(aggressive for 93) and let it adapt for a day or so and then grab a couple datalogs. The OTS maps are pretty conservative and there is no risk of engine damage in this scenario. If it is a little too much then flash over to sport and log.

Good to know. Thanks man. I guess I will datalog anyways, have to learn sometime.

[JStang]

Originally Posted by tennis_pr0

At VAC now and getting the cobb installed and also getting a drop in air filter. Very excited! Steve at VAC recommended fusing stage 1 sport for nice daily driving smooth power. I will post back after my first drive

You are paying someone to install the tune and put in a filter?

[tennis_pr0]

They are doing it for free.

[JStang]

Nice. Enjoy the flash.

[tennis_pr0]

Thanks. They said its better to have to car hooked up to a machine or something, kind of like a laptop beijg plugged in, while doing the install

[JStang]

Originally Posted by tennis_pr0

Thanks. They said its better to have to car hooked up to a machine or something, kind of like a laptop beijg plugged in, while doing the install

They recommend that you hook up the battery to a charger.