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View Full Version : Just installed my MSD coil. Impressions...



rudgers73
09-04-2009, 03:32 PM
So I installed my MSD coil the other night and this is what has changed:

1. Since I installed my ebay intake the power curve has been "non-linear" (ie. Bog at the start of WOT, smooth pull through a couple grand, lunge of torque towards 4k). It is much smoother now and it is a nice consistent pull to redline.

2. Less of a jerk/lunge when taking my foot quickly off of the gas petal.

3. Less popping/backfiring under hard deceleration.

4. Deeper tone in the exhaust, but overall a little more quiet. The pulses sound more like "pops" instead of "puffs".

5. Low end torque has been slightly restored. (When I had a pile of people in my car before and I didn't give it enough gas starting out it would shutter, now I can very easily pull away using 1k revs)

6. Smoother idle. Sitting at 650 rpms my engine would cyclically rumble and jiggle every 3-4 seconds, now it sits smooth even when the AC condenser is cycling.

I haven't observed a gas mileage change because I am still on the first tank, but I will update if anything surprisingly good happens.

Overall, I am happy so far. I am planning on going to the drag strip to compare my numbers from the last time I went. If I improve there, I will have decent proof that low end torque has been bumped since I haven't made any other changes.

2.5GT
09-07-2009, 09:45 AM
Great review. This should go in the MSD coil thread in the DIY.

I will try this out sometimes. Although nothing is wrong with my OEM one, just another upgrade i guess :grin:

jharl
09-07-2009, 03:42 PM
I just recently installed the msd coil as well and noticed it seemed to smooth things out alot more. I have the 'hybrid' intake as well as the intake manifold spacers and with those two there was a noticeable, I dunno punch I guess, in power towards 5000 rpms, this seemed to smooth it out.

Airgne
09-07-2009, 04:35 PM
need to figure out a way to get one to work with a 3rd gen legacy.

rudgers73
09-07-2009, 07:49 PM
I just recently installed the msd coil as well and noticed it seemed to smooth things out alot more. I have the 'hybrid' intake as well as the intake manifold spacers and with those two there was a noticeable, I dunno punch I guess, in power towards 5000 rpms, this seemed to smooth it out.

Yeah, I think this is my favorite effect of this upgrade. My torque curve has been changed. I think it took a little off the top and added it to the bottom, which I really don't mind because in any type of racing I think it is better to not have lumps of power. The car stays settled and is more predictable with a smoother curve. This is why I am so excited to go to the drag strip again. I want to see if the shift has increase my overall speed by "snowballing" the power more at the low end.

I wanna get more area under the curve in the function of velocity vs time :twisted: (for all of you math dorks here...) haha

Matty2Hotty
01-04-2010, 05:09 AM
need to figure out a way to get one to work with a 3rd gen legacy.

someone does for sure! I contacted MSD to make one but we need more people to inquire them on requests to make a 00-04 2.5l coil pack.