Preparation for protune

j07sti.ltd · 12-15-2007, 07:35 PM

I know the basics, but is there anything to look out for before a protune. I have a cobb dp and heat shield. Is it a good idea to have the heat shield off so the tuner can access the bung. Any help appreciated. I searched but if a protune prep link exists point me in the right direction. Thanks

J

gr00vy07 · 12-15-2007, 07:39 PM

here's a link: CobbTuning.com - Dyno Tuning Checklist v1.00

j07sti.ltd · 12-15-2007, 07:42 PM

I found that one. Thanks. Any thoughts on the heat shield?

StylesJim · 12-15-2007, 10:18 PM

I am not sure how most tuners do it... but during my tune no sensors were placed anywhere near the heat shield. I had it installed before I arrived and it was never messed with.

The prep stuff is kinda worthless for a new car if you ask me. Just use your brain. Don't bring in a car in piss poor condition. A tuner is going to do what they do best... put your car on a dyno, hook up a computer, and get down and dirty. I have not hear much about removing the heat shield. 99% of the people on these boards go to their tune with all the parts installed (in my case tbe, cai, fuel pump, heat shield) and leave with a tuned car that runs great.

Side note: Tuners love to tune for numbers. A heat shield only contributes to higher numbers, so they would probably prefer to leave it on to avoid heat soak.

ninjaboy76 · 12-15-2007, 10:33 PM

Most tuners will put the 02 sensor on the back of the tailpipe, but this can vary. If your only mod is an exhaust, then I would just make sure you don't have any exhaust leaks. For future reference when you start to add more parts, I would perform a boost leak test as well prior to any tuning. Plus if you haven't considered it, I would get a race gas tune or race gas mixed with pump. Good luck!

CenCali07STI · 12-15-2007, 10:44 PM

I wonder how accurate that a/f off the tail pipe is if you have a cat. Because arent they suppose to burn of some of the unburnt fuel in the exhaust so would that make your car seem leaneer than what it is?

oc1806STI · 06-13-2008, 06:47 PM

How many of you are getting compression and leak down tests done before a protune like they suggest? It is a great idea but I'm not showing any signs of problems.

Better safe than sorry? Thanks.

JD_STI · 06-13-2008, 06:51 PM

I'd do a compression test. If the numbers are consistent then I don't see any reason to get a leak down.

12-15-2007, 07:35 PM	#1
j07sti.ltd Junior STI Driver Car: 07ltd UGM Location: Addison, TX Posts: 67 Join Date: May 2007 Trader Rating: (0)	Preparation for protune I know the basics, but is there anything to look out for before a protune. I have a cobb dp and heat shield. Is it a good idea to have the heat shield off so the tuner can access the bung. Any help appreciated. I searched but if a protune prep link exists point me in the right direction. Thanks J This ad is not endorsed by this member. Please register or login to hide this ad.

12-15-2007, 07:39 PM	#2
gr00vy07 Silver Member Car: 07 SWP STI LTD #484 Fav Mod: RCE Yellows Location: Seneca, SC Posts: 130 Join Date: Feb 2007 Trader Rating: (1)	Re: Preparation for protune here's a link: CobbTuning.com - Dyno Tuning Checklist v1.00

12-15-2007, 07:42 PM	#3
j07sti.ltd Junior STI Driver Car: 07ltd UGM Location: Addison, TX Posts: 67 Join Date: May 2007 Trader Rating: (0)	Re: Preparation for protune I found that one. Thanks. Any thoughts on the heat shield?

12-15-2007, 10:18 PM	#4
StylesJim Professional STI Driver Car: 07 OBP STI Fav Mod: Sundays and Boxers Location: VA Posts: 426 Join Date: Feb 2007 Trader Rating: (0)	Re: Preparation for protune I am not sure how most tuners do it... but during my tune no sensors were placed anywhere near the heat shield. I had it installed before I arrived and it was never messed with. The prep stuff is kinda worthless for a new car if you ask me. Just use your brain. Don't bring in a car in piss poor condition. A tuner is going to do what they do best... put your car on a dyno, hook up a computer, and get down and dirty. I have not hear much about removing the heat shield. 99% of the people on these boards go to their tune with all the parts installed (in my case tbe, cai, fuel pump, heat shield) and leave with a tuned car that runs great. Side note: Tuners love to tune for numbers. A heat shield only contributes to higher numbers, so they would probably prefer to leave it on to avoid heat soak.

12-15-2007, 10:33 PM	#5
ninjaboy76 Spec C Club Car: 08 CBR1000RR Fav Mod: None Location: Kansas Posts: 2,435 Join Date: Jun 2004 Trader Rating: (6)	Re: Preparation for protune Most tuners will put the 02 sensor on the back of the tailpipe, but this can vary. If your only mod is an exhaust, then I would just make sure you don't have any exhaust leaks. For future reference when you start to add more parts, I would perform a boost leak test as well prior to any tuning. Plus if you haven't considered it, I would get a race gas tune or race gas mixed with pump. Good luck!

12-15-2007, 10:44 PM	#6
CenCali07STI Professional STI Racer Car: 07 STI SWP Fav Mod: Custom built TBE FTW!!! Location: Modesto, California Posts: 842 Join Date: Feb 2007 Trader Rating: (1)	Re: Preparation for protune I wonder how accurate that a/f off the tail pipe is if you have a cat. Because arent they suppose to burn of some of the unburnt fuel in the exhaust so would that make your car seem leaneer than what it is?

06-13-2008, 06:47 PM	#7
oc1806STI Amateur STI Driver Car: 06 STI Posts: 40 Join Date: May 2007 Trader Rating: (0)	Re: Preparation for protune How many of you are getting compression and leak down tests done before a protune like they suggest? It is a great idea but I'm not showing any signs of problems. Better safe than sorry? Thanks.

06-13-2008, 06:51 PM	#8
JD_STI Spec C Club Car: 07 STI Fav Mod: Zzyzx Coilovers Location: SoCal Posts: 1,200 Join Date: Jul 2007 Trader Rating: (0)	Re: Preparation for protune I'd do a compression test. If the numbers are consistent then I don't see any reason to get a leak down. This ad is not endorsed by this member. Please register or login to hide this ad.