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Old 09-16-2005, 02:14 PM   #1
Pat L.I.
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Join Date: Jun 2002
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2006 WRX TR
Aspen White

Default Twe stage 2 cams, valve springs/retainer , Perfect Power



Well i finally got my car back. Car went into the shop for a leaking headgasket and a few other maintenance items.

2 weeks later came out with TWE stage 2 cams, Titanium valvesprings/retainers, cometic gaskets, ARP head studs, new stock valves (old valves were pitted somehow pics to come later), perfect power smt6 (rallitek), STi Group N tranny mount.

existing power mods: Cobb CAI, borla headers, 2.25 midpipe, scoobysport axleback, gfb lw/underdriven pulleys, exedy lw flywheel, exedy sport clutch,

a slight difference in idle can be heard through the exhaust note.

wow. The car drives great. Im not sure where the rumor of a loss of low end came from but i dont feel any loss. The car maintained all low end drivability. i can still start from second gear just as easy, so the torque remains.

car drives the same up to 3,000. At 3,000 you feel a hint of power beginning to increase ever so slightly. 3,500 you feel like the car is starting to come alive. 4,000 there it is! thats what i paid all this money for. The car continues to pull stronger and stronger all the way up to redline with no sign of leveling off. After each shift the car falls nicely back into the powerband and pulls strongly back up to redline.

I have to admit initially it was not the kick in the pants power increase that i expected. But the power delivery is fairly smooth so it is deceptive. It took a quick glance down at the speedometer (oops 70 already?) to realize how much quicker i was accelerating.

I have been experimenting with two maps that sean from rallitek gave me. One setup for a baseline 02 rs and the other for an rs with stage 2 cams. We found that the car was somewhat lean up top with the baseline map so i switched to the map specifically for cams and the car runs alot smoother.
right now im just datalogging and getting a feel for the perfect power. Dyno tuning will come shortly.

Slight issue with a rough start. (could be the perfect power).
Check engine light came on after first drive cycle. 4 codes, Misfire on all four cylinders.

Group N Tranny mount feels great. Nice and solid shifts. However, Does not stop the jerking motion as some have mentioned. Transmitts more NVh!

Everyone involved in the process was super helpfull, Dave, Richie and team at Metric subaru, Sean at rallitek, especially Jim and Tom at TWE. Thanks All

TWE superstock equal length headers and resonated midpipe were ordered today!
ill post some pictures of the car once i have a chance to wash it!
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Last edited by Pat L.I.; 09-16-2005 at 02:32 PM.
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Old 09-16-2005, 03:47 PM   #2
Kevin Thomas
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Quote:
Originally Posted by Pat L.I.
Dyno tuning will come shortly.
This is what I'm waiting for. Have you dyno'd before the mods to see the before and after affect?

Nice mods BTW!
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Old 09-21-2005, 02:18 PM   #3
AWD2.5
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bump , any dyno results yet???????
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Old 09-21-2005, 02:30 PM   #4
Pat L.I.
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Hey guys, unfortunately i havent dyno'd the car before the mods.
TWE was welding my headers together yesterday hopefully they will ship soon.
once i get those installed im going straight to the dyno! hopefully within the next few weeks!

if youve seen any of my other threads. im still battling a hesitation issue (which i had before the cams went in). I thought it was the coil pack but i finally got my hands on an ohmmeter and the coil pack tests out fine.
although today i found a big tear in one of the hoses for the cobb intake.
If i follow from the PCV Valve to the T connector. from there it is the hose that leads into the T connector for the intake system. I cut it after the tear and put it back on. so we will see if fixing that vaccum leak effects my hesitation problem. Hopefully it will fix it although im not completely sure how that system of the car works.

alas... dyno results soon!
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Old 09-21-2005, 03:07 PM   #5
Boom05rs25
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dope set up.....keep us posted on digits!
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Old 09-21-2005, 07:27 PM   #6
pete wood
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WHich ECU is that, factory or aftermarket?
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Old 09-22-2005, 09:00 AM   #7
Pat L.I.
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factory ecu with Perfect power SMT6. using a rallitek base map for a car similar to my setup.

www.rallitek.com
www.perfectpower.com
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Old 09-24-2005, 07:26 PM   #8
dpjef
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Hi Pat,

do you still have misfire codes on all cylinders ?

I have the same issue with my MY01 (<- Euro = MY02 US) fitted
with an Unichip. No matter what we try with tuning the maps.
I guess theres a problem with the Unichip and how it intercepts and
changes the sensor signals.

I think I read an (old) post about how the Unichip can't modify the
ignition on ODBII cars or something.
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Old 09-25-2005, 12:25 PM   #9
Pat L.I.
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Yes i do have a cel for a missfire on all four cylinders. I clear it and it comes right back This is because of my cams not because of my perfect power ecu piggyback.

give rallitek a call im sure they are very familiar with the unichip.
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Old 09-26-2005, 12:57 AM   #10
moogoob
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I was under the impression that pullies and LW flywheels was a no no for some reason.... I've only read that.

post video
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Old 09-26-2005, 01:07 AM   #11
99subi
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i was under the same impression
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Old 09-26-2005, 02:39 AM   #12
EcksJay
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Why would that be a no-no?
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Old 09-26-2005, 03:31 AM   #13
redwagon
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Reduced flywheel and pulley mass -> not enough rotational inertia -> uneven crank speed -> misfire CEL
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Old 09-26-2005, 08:39 AM   #14
Pat L.I.
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i have had the underdriven pulleys as well as the lw flywheel on the car for close to 25,000 miles without any occurance of a missfire cel or degredation of performance. The cel started the day the cams went in.

some links to others not having issues with lw flywheel and pullies. I think this issue could be a myth repeated over and over again by people who have not tried it, but have read it somewhere.
http://forums.nasioc.com/forums/show...ht=lightweight
http://forums.nasioc.com/forums/show...llies+flywheel

Last edited by Pat L.I.; 09-26-2005 at 08:51 AM.
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Old 09-26-2005, 02:22 PM   #15
moogoob
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Quote:
Originally Posted by Pat L.I.
......... I think this issue could be a myth repeated over and over again by people who have not tried it, but have read it somewhere.....
Guilty but its always been hear-say and speculation, thats why I ask.
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