Need some help on first mods

JDMpreza · 08-09-2003, 02:56 PM

ok basically i want my car running like mid-high 14s ASAP, so i need some help.

what mods would i need to accomplish this?

i have a 03 RS and i already have a magnaflow muffler with custom pipping. i'm looking into the cobb cai, what else should i get?

i'd really like low 14s, is this possible while staying na?

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Surb00 · 08-09-2003, 03:07 PM

You are going to want to look into cams and maybe some headwork to get down to 14's. Intake and a full header-back exhaust could prob. get you to the low 15s.

BAN SUVS · 08-09-2003, 03:27 PM

Good start. Here's what else you need to run low 14s NA:

Cobb street cams (or 'spicy' cams if you like)
Equal-length headers like MRT + midpipe
Lightweight flywheel
Stronger clutch
A budget for transmission repairs/replacements or a 6MT.

None of that will pass a smog check except the cat-back. The cams will make you even fail the sniffer test, so be aware of that. Otherwise, that will get you there. You could also strip as much weight as possible out of the car if you're really hardcore, but to be honest swapping cams is easier. If you do cams, heads, serious weight reduction, and some other small things like wires, plugs, ECU tuning, etc., you *might* even get to the 13s.

Quote:

Originally posted by Surb00
You are going to want to look into cams and maybe some headwork to get down to 14's. Intake and a full header-back exhaust could prob. get you to the low 15s.

Yup. Cobb intake + full MRT header-back = 15.1 with a good launch.

JDMpreza · 08-10-2003, 02:04 AM

i've heard of low 15s with just intake. but anyways, i'm thinkin COBB CAI next, then headers, then cams. what about pullies? also what would be the best type of header and cams?

BAN SUVS · 08-10-2003, 05:20 AM

You don't cut a full second off your ET with one mod unless it's nitrous. Lightweight stock diameter pullies work ok, but light flywheels are more effective. Since you'll need a clutch eventually, just have the new flywheel installed at the same time. As for which exhaust and cams, see above post.

08-09-2003, 02:56 PM	#1
JDMpreza Scooby Newbie Member#: 36312 Join Date: May 2003 Location: Baltimore, Maryland Vehicle: 2003 2.5 RS Midnight Black Pearl	Need some help on first mods ok basically i want my car running like mid-high 14s ASAP, so i need some help. what mods would i need to accomplish this? i have a 03 RS and i already have a magnaflow muffler with custom pipping. i'm looking into the cobb cai, what else should i get? i'd really like low 14s, is this possible while staying na? * Registered users of the site do not see these ads.

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08-09-2003, 03:07 PM	#2
Surb00 Scooby Newbie Member#: 27132 Join Date: Oct 2002 Location: Colorado Springs, Colorado Vehicle: 1999 2.5 RS-T Rally Blue	You are going to want to look into cams and maybe some headwork to get down to 14's. Intake and a full header-back exhaust could prob. get you to the low 15s.

08-10-2003, 02:04 AM	#4
JDMpreza Scooby Newbie Member#: 36312 Join Date: May 2003 Location: Baltimore, Maryland Vehicle: 2003 2.5 RS Midnight Black Pearl	i've heard of low 15s with just intake. but anyways, i'm thinkin COBB CAI next, then headers, then cams. what about pullies? also what would be the best type of header and cams?

08-10-2003, 05:20 AM	#5
BAN SUVS Scooby Specialist Member#: 28685 Join Date: Nov 2002 Location: Reno, Nevada Vehicle: 2004 FXT 4EAT very STi'd	You don't cut a full second off your ET with one mod unless it's nitrous. Lightweight stock diameter pullies work ok, but light flywheels are more effective. Since you'll need a clutch eventually, just have the new flywheel installed at the same time. As for which exhaust and cams, see above post.