Jeep Strokers

Still can work on it. I just need to specs of the cams to add.

I did a logic check on the Calculator today since it's been forever since I did all that work.
I found an issue with how we calculate DCR at Altitude. The old calculation used a simple linear formula (subtract 0.2 DCR per 1000 ft) which worked okay at lower elevations but became increasingly inaccurate the higher you go.

The Problem:
At higher altitudes like Denver (5,280 ft) or Flagstaff (7,000 ft), the old formula was actually over-correcting - making your effective DCR appear higher than it really is.

The Fix:
Updated to use the standard atmospheric pressure formula (same one used in aviation/aerospace). This accurately calculates how air pressure drops with altitude and applies it correctly to your DCR.

Bottom line: The calculator will now give you more accurate numbers, especially if you're at altitude.

oooh exciting!

Considered adding the newcomber roller cams?

https://www.newcomerracing.com/store/p4 ... p_AMC.html

I made more improvements today:

- "N/A" Display for Missing Cam Data
- Auto-Calculate on Input. No need to hit Calculate button.
- Reset to Defaults Button

cal wrote: ↑January 13th, 2026, 10:56 am oooh exciting!

Considered adding the newcomber roller cams?

https://www.newcomerracing.com/store/p4 ... p_AMC.html

I added the cams listed on their page. None of them appear to use any Advance\Retard .. or at least its not listed.

The calculator also has some other minor fixes.

FYI I am in the process of a redesign of the calculator page so stay tuned!

Actually you might want to hold on the Newcomer Racing cams for now. From what I am finding they don't appear to publish Advertised duration.. only at 0.050 which will not work for our calculations. We might need to remove these unless I can find other data.

Closing this thread to start a new one for the re-design.