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Old 06-30-2019, 09:39 AM
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The Champ The Champ is offline
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Join Date: May 2002
Location: Rochester, MN
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Quote:
Originally Posted by Chief of the 60's View Post
Laughs is what I get from reading this ^ ^ ^ because I owned these cars when they were stock.
You might have owned some, but did you drive them and look at your tach at 55 MPH?

You sound like a kid who is an expert at video games, but no experience with the real thing.

There was never a stock 3.55 geared car that hit 3800 RPM at 55 MPH in high gear as you claimed and your post wasn't referring to a "stock" car anyway.

Are you sure you weren't calculating a 5.55 geared car?

Quote:
Here is some food for thought as well as looking at this from an economical angle. That car with any non-OD tranny will tach at around 3800 RPM at 55 mph. With an OD, that same car, same engine and same rear gear will tach at about 2200-2400 RPM at 55 mph.
http://www.csgnetwork.com/multirpmcalc.html

This is to a gearing calculator that gives the RPM's for a standard automatic, an overdrive automatic, a standard manual and an 5 spd overdrive manual at whatever speed you want by inputting the tire height and the rear end gear.

The results for a 27" tire on a 3.55 rear geared vehicle at 55 MPH in high gear:

Quote:
Auto 2495

AOD 1701

Manual 2430

5 Speed 1944
Not a single one is 3800 RPM. The OD trannies are 200 - 700 RPMS lower that what you claimed and the non OD trannies are very close to what you claimed the OD trannies would be.

Now insert all the same info with 5.55 gearing:

Quote:
Auto 3900

AOD 2659

Manual 3799

5 Speed 3039
It's simple math. Why deny the truth?

Your continued refusal to deny the facts to try and validate your grossly inaccurate input in this thread is nauseating.

And just for your information - comparing the RPM of a ST300 in high gear (2nd gear in an ST 300 is high gear) to a TH400 in second gear just might be most outlandish thing you've ever done.