New mods... what tuning should I do?

davidsti · 03-26-2005, 09:50 PM

I currently have a K&N short ram intake and I have a utec, bosal cat back and invidia dp on the way.

With the intake and tbe what boost and af should I run. I was thinking about 18 psi and around 11:1 - 11.5:1 af. Does this sound safe?

Also, what kind of gains should I get with this.

Thanks

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wannaberacing · 03-28-2005, 12:19 AM

depends how you drive. If your hammering it all the time better get into the 10's.

davidsti · 03-28-2005, 12:47 PM

ok... I will probably do 10.9:1 or 10.8:1 and about 18psi.

How much does the timing have to be changed to run 18 pounds and around that af?

wannaberacing · 03-28-2005, 02:37 PM

A delta dash would tell you exactly where in the map and how much to alter it.

hippy · 03-28-2005, 04:20 PM

What kinda car do you have? What are you using to monitor your a/f ratio? Do you have an egt gauge? How about a boost gauge? What altitude are you driving at most of the time?

dosage0 · 03-28-2005, 07:45 PM

octane? I'll assume 93-94 so I'd run 10.8 or richer. If you are on the stock turbo, you can run 18lbs, but you're getting outside the efficiency range and the amount of air you are pushing wont change much. A K&N is nice and all...but it doesnt do anything.

stay conservative -- a few horsepower isnt worth it imo. A new turbo / intercooler would really make a huge difference.

Rob

davidsti · 03-30-2005, 06:39 PM

I have an 04 sti. I am at about 3000 feet. I have the factory boost gauge.

ride5000 · 03-31-2005, 07:30 AM

before you go cranking up the boost, get those cats out of there and uncork the muffler. for street driving, low-11's:1 suits me just fine.

03-26-2005, 09:50 PM	#1
davidsti * Banned * Member#: 83829 Join Date: Mar 2005	New mods... what tuning should I do? I currently have a K&N short ram intake and I have a utec, bosal cat back and invidia dp on the way. With the intake and tbe what boost and af should I run. I was thinking about 18 psi and around 11:1 - 11.5:1 af. Does this sound safe? Also, what kind of gains should I get with this. Thanks * Registered users of the site do not see these ads.

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03-28-2005, 12:19 AM	#2
wannaberacing Scooby Newbie Member#: 33919 Join Date: Mar 2003 Location: santa barbara Vehicle: 2002 2.5l-WBR-GT30R wbrheads-ECUtech-400whp	depends how you drive. If your hammering it all the time better get into the 10's.

03-28-2005, 12:47 PM	#3
davidsti * Banned * Member#: 83829 Join Date: Mar 2005	ok... I will probably do 10.9:1 or 10.8:1 and about 18psi. How much does the timing have to be changed to run 18 pounds and around that af?

03-28-2005, 02:37 PM	#4
wannaberacing Scooby Newbie Member#: 33919 Join Date: Mar 2003 Location: santa barbara Vehicle: 2002 2.5l-WBR-GT30R wbrheads-ECUtech-400whp	A delta dash would tell you exactly where in the map and how much to alter it.

03-28-2005, 04:20 PM	#5
hippy Scooby Specialist Member#: 36528 Join Date: May 2003 Location: florida Vehicle: 2002 Impreza Wrx Silver	What kinda car do you have? What are you using to monitor your a/f ratio? Do you have an egt gauge? How about a boost gauge? What altitude are you driving at most of the time?

03-28-2005, 07:45 PM	#6
dosage0 Scooby Newbie Member#: 42323 Join Date: Aug 2003 Location: VF35, Pinks Vehicle: 2004 WRX Silver - UTEC, Tuna, TBE	octane? I'll assume 93-94 so I'd run 10.8 or richer. If you are on the stock turbo, you can run 18lbs, but you're getting outside the efficiency range and the amount of air you are pushing wont change much. A K&N is nice and all...but it doesnt do anything. stay conservative -- a few horsepower isnt worth it imo. A new turbo / intercooler would really make a huge difference. Rob

03-30-2005, 06:39 PM	#7
davidsti * Banned * Member#: 83829 Join Date: Mar 2005	I have an 04 sti. I am at about 3000 feet. I have the factory boost gauge.

03-31-2005, 07:30 AM	#8
ride5000 Scooby Guru Member#: 32792 Join Date: Feb 2003 Chapter/Region: NESIC Location: lincoln, ri Vehicle: 2003 GGA MBP 12.9 / 105+	before you go cranking up the boost, get those cats out of there and uncork the muffler. for street driving, low-11's:1 suits me just fine.