Stock plugs on Ess m3?

[zyh66619941008@gmail.com]

Originally Posted by Bakerboy

Did you replace all or pinpoint the problem coil??

i replaced all of them

[zyh66619941008@gmail.com]

Originally Posted by bvrider1

I'm sorry. I meant did you replace all 8 coil packs?

Yea all of them, I got a healthy hp number but the torque seems a little bit low

[bvrider1]

I was at 537 hp to the wheels and 384 for torque.

What is your exhaust setup?

Originally Posted by zyh66619941008@gmail.com

Yea all of them, I got a healthy hp number but the torque seems a little bit low

[pbonsalb]

384 lbs rwtq seems high for torque from a centrifugal when peak power is 537 rwhp.

[bvrider1]

It could be.... You know what they say about those mustang dynos.....

Originally Posted by pbonsalb

384 lbs rwtq seems high for torque from a centrifugal when peak power is 537 rwhp.

[pbonsalb]

I am not doubting you have a dyno that shows those results. It’s just an outlier to get that torque with that power from a centrifugal on an S65 for dynojet results:

http://www.s65dynos.com/

If the filter is set to mustang dyno results there aren’t any direct comparisons. I’ll guess, though, that the mustang shows more torque than a dynojet would.

[zyh66619941008@gmail.com]

Originally Posted by bvrider1

I would think you would be safe keeping the same plugs in there and run new coils.

Do yourself a favor and do it and report back how the car runs after that.

Sure! I will

[c3855]

So I just had a g1 kit installed on mine. I noticed the same issue at 6-7k rpm under wot. No codes or engine lights, pulls well until 6-7rpm then misfires and sputters so I just shift , but defiantly not getting full power.I will check the coil packs and plugs. Thanks for this thread!

[pbonsalb]

With a centrifugal, you don’t get full boost until redline and boost increases exponentially with rpm, so it makes sense that the problem shows up at high rpm where you have the most boost. New plugs will have stock gaps that take less coil energy to jump, and at some point old coils will produce less energy. Could be plugs or coils or both. Plugs are cheapest to change, so most try them first.