Differential Question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

TheMadHatter99 · 01-12-2009, 01:39 PM

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!

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...

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

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.

99b4c · 01-13-2009, 04:08 PM

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

SScattergunSS · 01-14-2009, 06:20 AM

Quote:

Originally Posted by trm0002

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

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

01-12-2009, 01:39 PM	#1
TheMadHatter99 Kept the Faith Drives: '10 Camaro 2SS/RS CGM Join Date: May 2007 Location: Jacksonville, FL Posts: 721 View My Garage	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. __________________

01-12-2009, 01:41 PM	#2
Mr. Wyndham I used to be Dragoneye... Drives: 2018 ZL1 1LE Join Date: Jan 2007 Location: Buffalo, NY Posts: 31,876 View My Garage	3.27 for all models, except: 3.45 for Manual SS. Let us know how it all turns out, it ought to be cool! __________________ *"Keep the faith."* - Fbodfather

01-12-2009, 01:43 PM	#3
zebra just can't seem to leave Drives: your mom wild!! Join Date: Oct 2008 Location: cold & windy Posts: 10,625 View My Garage	if you wanna make it look better, we're supposed to get a 3.73 option in 2011. __________________ Eve ('00 FRC): hot-air intake Rowan ('09 H3): 5spd mom-mobile Penny ('99 Sierra): 5.3 / HD 5spd... gone but not forgotten Samson ('18 HD): compounded 408

01-12-2009, 01:44 PM	#4
TheMadHatter99 Kept the Faith Drives: '10 Camaro 2SS/RS CGM Join Date: May 2007 Location: Jacksonville, FL Posts: 721 View My Garage	Isn't 3.45 the transmission ratio? The differential should have its own, or are they the same? __________________

01-12-2009, 01:58 PM	#5
Mr. Wyndham I used to be Dragoneye... Drives: 2018 ZL1 1LE Join Date: Jan 2007 Location: Buffalo, NY Posts: 31,876 View My Garage	The transmission has 6 different ratios...I'm not sure what you mean about that... The numbers I provided are for just the differentials, and the number zebra provided was a future differential option. __________________ *"Keep the faith."* - Fbodfather

01-12-2009, 02:08 PM	#6
Mr Twisty Drives: the 2nd amendment home Join Date: May 2008 Location: OK Posts: 14,707	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.

01-12-2009, 02:12 PM	#7
TheMadHatter99 Kept the Faith Drives: '10 Camaro 2SS/RS CGM Join Date: May 2007 Location: Jacksonville, FL Posts: 721 View My Garage	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? __________________

01-12-2009, 02:19 PM	#8
Mr. Wyndham I used to be Dragoneye... Drives: 2018 ZL1 1LE Join Date: Jan 2007 Location: Buffalo, NY Posts: 31,876 View My Garage	This is everything you should ever need in terms of gear ratios. PAGE 3: http://www.chevrolet.com/camaro/pdf/...ifications.pdf __________________ *"Keep the faith."* - Fbodfather

01-12-2009, 02:45 PM	#9
zebra just can't seem to leave Drives: your mom wild!! Join Date: Oct 2008 Location: cold & windy Posts: 10,625 View My Garage	^^ thanks! i never could remember where i saw that __________________ Eve ('00 FRC): hot-air intake Rowan ('09 H3): 5spd mom-mobile Penny ('99 Sierra): 5.3 / HD 5spd... gone but not forgotten Samson ('18 HD): compounded 408

01-12-2009, 03:54 PM	#10
TheMadHatter99 Kept the Faith Drives: '10 Camaro 2SS/RS CGM Join Date: May 2007 Location: Jacksonville, FL Posts: 721 View My Garage	Thanks a lot Dragon, I'll flip through it and see if I can find what my prof was talking about. __________________

01-13-2009, 03:41 PM	#12
trm0002 VIN #2G1FT1EW6A9100074 Drives: 2010 CAMARO 2SS/RS RJT VIN 00074 Join Date: Oct 2008 Location: Buffalo,NY 'burbs Posts: 4,216	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. Last edited by trm0002; 01-14-2009 at 11:13 AM.*

01-13-2009, 04:08 PM	#13
99b4c Drives: 89 RS/99 GTP/1SS soon Join Date: May 2007 Location: Chicago/Phoenix Posts: 238	Anyone know what the diameter of the ring gear will be?

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