Calculator...

Check here for most things forum related... NOT stroker related!
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Muad'Dib
Site Admin / Owner
Site Admin / Owner
Posts: 1507
Joined: January 8th, 2008, 10:55 am
Stroker Displacement: 4.7L
Vehicle Year: 1990
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Oregon
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Re: Calculator...

Post by Muad'Dib »

Still can work on it. I just need to specs of the cams to add.
If it feels right, then STROKE it!
User avatar
Muad'Dib
Site Admin / Owner
Site Admin / Owner
Posts: 1507
Joined: January 8th, 2008, 10:55 am
Stroker Displacement: 4.7L
Vehicle Year: 1990
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Oregon
Contact:

Re: Calculator...

Post by Muad'Dib »

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.
If it feels right, then STROKE it!
cal
Making Progress
Making Progress
Posts: 62
Joined: March 19th, 2008, 12:09 pm
Stroker Displacement: 4.71

Re: Calculator...

Post by cal »

oooh exciting!

Considered adding the newcomber roller cams?

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