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TheMadHatter99 01-12-2009 01:39 PM

Differential Question
 
I'm working on a project for my Physics of Motorsports class (coolest class EVAR) where I will calculate the theoretical/ideal 0-60 and 1/4 mile times for the Camaro. I've got practically all of the other numbers I need, but does anyone know the gear ratio for the rear differential?

Thanks in advance, and once I have my results I'll be sure to post it all up here.

Mr. Wyndham 01-12-2009 01:41 PM

3.27 for all models, except: 3.45 for Manual SS.

Let us know how it all turns out, it ought to be cool! :D

zebra 01-12-2009 01:43 PM

if you wanna make it look better, we're supposed to get a 3.73 option in 2011.

TheMadHatter99 01-12-2009 01:44 PM

Isn't 3.45 the transmission ratio? The differential should have its own, or are they the same?

Mr. Wyndham 01-12-2009 01:58 PM

The transmission has 6 different ratios...I'm not sure what you mean about that...:iono:

The numbers I provided are for just the differentials, and the number zebra provided was a future differential option.

Mr Twisty 01-12-2009 02:08 PM

Dragon gave you good numbers. How accurate do you need to be? weight? trans gearing? tire patch & size/diameter/width? HP/torque? Need these numbers also.

TheMadHatter99 01-12-2009 02:12 PM

Yeah, we're using mass, tire radius, gear ratios (preferably the trans and rear diff ratios, to be most accurate) and then I'm going to use the G8 GXP HP/Torque curve chart since that's the closest we've got (same engine and same basic chassis).

I have everything but the rear diff ratio and don't really know where to find that, hence the thread.

Any suggestions?

Mr. Wyndham 01-12-2009 02:19 PM

This is everything you should ever need in terms of gear ratios.

PAGE 3:
http://www.chevrolet.com/camaro/pdf/...ifications.pdf

zebra 01-12-2009 02:45 PM

^^ thanks! i never could remember where i saw that

TheMadHatter99 01-12-2009 03:54 PM

Thanks a lot Dragon, I'll flip through it and see if I can find what my prof was talking about.

69 rs/ss 01-13-2009 12:08 PM

Quote:

Originally Posted by TheMadHatter99 (Post 244583)
I'm working on a project for my Physics of Motorsports class (coolest class EVAR) where I will calculate the theoretical/ideal 0-60 and 1/4 mile times for the Camaro. I've got practically all of the other numbers I need, but does anyone know the gear ratio for the rear differential?

Thanks in advance, and once I have my results I'll be sure to post it all up here.

Try this site...
http://home.att.net/~numericana/answ...mula.htm#0to60

trm0002 01-13-2009 03:41 PM

I got bored today at work; see if this helps at all...

**edit-> as noted below this is with 17" tires (someone was asking me about them). See a few posts down for the 20" spreadsheet.

http://i185.photobucket.com/albums/x...SS_GEARING.png

99b4c 01-13-2009 04:08 PM

Anyone know what the diameter of the ring gear will be? :chevy:

SScattergunSS 01-14-2009 06:20 AM

Quote:

Originally Posted by trm0002 (Post 246336)
I got bored today at work; see if this helps at all...

http://i185.photobucket.com/albums/x...SS_GEARING.png

I think it's cool you took the time, but I think the rear wheel / tire diameter is 28.66" not 25.66".


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