S85-EVO Program
High duration camshaft program for the S85.
Build Journal
Better value than a stroker? I believe so.
Beyond the traditional upgrades, making more naturally aspirated power with an S85 usually answered with "Stroker!".
In 2023, I set out to challenge the hypothesis that camshaft upgrades were ineffective on the S85.
The end result will surprise you.
In this Series, I document the development of the S85-EVO as part of the Sxx-EVO programs.
Cheers,
- Matt
Spec your S85-EVO
Dyno numbers
Settling scores.
In this entry, we hit the dyno and the S85-EVO gets tuned.
We can finally answer our initial hypotheses on whether high duration camshafts make power, and if so - how much.
I go in depth on the numbers and compare with various benchmarks.
Program fundamentals
Complete S85 cylinders head service.
The S85-EVO Program is based on a core exchange service.
Core S85 cylinder heads are cleaned, machined, refreshed and upgraded with the components required for the EVO program.
What's included
High Duration Camshafts.
Schrick high duration camshafts are included in the package with specific durations for the EVO packages.
Uprated Valvetrain.
The kit includes new uprated beehive valve springs, lightweight titanium or Genuine BMW retainers, along with Genuine BMW updated collets and seals.
Complete head refresh kit.
The kit also includes brand hardware for all one-time use components that require replacement.
Remote Tuning.
Remote off-the-shelf tuning is included in the kit along a K-CAN cable. Dyno tuning is optional and on a case by case basis.
FAQs
No.
Yes.
Yes. Contact me to discuss options.
No.
Yes - dyno tuning will be mandatory.
Got questions? Reach out.
Explore the programs
SXX-EVO: High duration camshaft programs.
In 2023, I set out to empirically prove, or disprove an hypothesis: could we reach 125hp/liters on naturally aspirated S54B32, S65B40 and S85B50 engines?
