RE: Soon To Be The Fastest Jato On RCU!!!!!

RE: Soon To Be The Fastest Jato On RCU!!!!!
View related threads: (in this forum | in all forums)

Logged in as Guest

Users viewing this topic: none

Printable Version

HPI SAVAGE 14MM HEX HUB WHEEL EXTENSIONS - RTR
Seller: wheelextensions
Details: $22.00 | 10/23/2008 | Classified Ad
We will rotate YOUR AD in this spot if you select "Forum Featured" when placing or editing your ad!

All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Nitro Stadium Trucks >> RE: Soon To Be The Fastest Jato On RCU!!!!!

Page: << < prev 3 4 5 6 7 8 [9] 10 11 12 next > >>

Login

Message

<< Older Topic Newer Topic >>

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:40:14 PM

Posts: 4862
Joined: 10/10/2004
From: San Antonio, TX, USA
Status: offline

I think some is off on the overall numbers.. I'm getting 184mph.

Here are some typical truggy number, you should be different but not by as much as it is..
Mugen is 46/10 diffs= 4.6, 46/13 center= 3.53. Overall 16.23:1
Kyosho is 43/10 diffs= 4.3, 50/13 center= 3.84. Overall 16.51:1
CRT is 43/13 diffs= 3.3, 62/13 center= 4.76. Overall 15.70:1
Muggy is 45/11 diffs = 4.09,46/12 center= 3.83. Overall 15.66:1
Muggy is 45/11 diffs = 4.09,46/13 center= 3.53. Overall 14.44:1 (stock)
Muggy is 45/11 diffs = 4.09,46/14 center= 3.28. Overall 13.41:1

_____________________________

Tangled up in Blue.

(in reply to Anthoop)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:40:53 PM

Posts: 4434
Joined: 6/20/2006
From: MIAMI, FL, USA
Status: offline

quote:

ORIGINAL: Anthoop

Crikey Miamiz...you don't make it easy do you???I've got so many bit's of paper flying round here.....and then i see you re-edited with a diameter change plus i'm having some confusion with your internal numbers there!!!Think i need to go and check out a Jato for myself!

man im so sorry this is why ive enver bothered doing it myself here is where i got all the info ok?? the gear ratio i got it from traxxas.com

http://www.traxxas.com/products/nitro/jato33/trx_jato33_specs.htm

here is where i got the number of teeth on pinion and diff crown

http://cgi.ebay.com/Traxxas-Diff-Gear-Side-Cvr-Gasket-Output-Gear-Seal-Jato_W0QQitemZ280146002630QQihZ018QQcategoryZ44028QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

and here is where i got the number of teeth for the second gear

http://cgi.ebay.com/Traxxas-5585-2-Speed-Gear-Set-Jato_W0QQitemZ200122469440QQihZ010QQcategoryZ44028QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

_____________________________

-= THE WORLD IS YOURS =-

(in reply to Anthoop)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:42:48 PM

Posts: 1106
Joined: 6/14/2007
From: Miami, FL, USA
Status: offline

wow this thread is really popular im suscribed and i here a clicky sound from my computers ever 20 secionds because someone has replied

_____________________________

I wanna make a jigsaw puzzle that''''''''s 40,000 pieces. And when you finish it, it says ''''''''go outside.''''''''

(in reply to MiamizFinest)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:46:22 PM

Posts: 4862
Joined: 10/10/2004
From: San Antonio, TX, USA
Status: offline

From the manual...

Using this info I extrapolate a ratio past the ring and pinion of 3.25......

so you pinion and spur yield a overall ratio of 1.46 * 3.25 = 4.745

Ok, this makes sense to me.

4x3.14 = 12.56inches...

3.25 * 1.46

43000/4.745 = 9062.17rpm

12.56 * 9062.17 = 113820.86inchs per minute...

113820.86/12 = 9485.07 feet per minute..

9485.07 * 60 = 569104.3 feet per hour...

569104.3/5280 = 107.785mph..........

< Message edited by 2DMaxLST!! -- 11/8/2007 10:52:45 PM >

_____________________________

Tangled up in Blue.

(in reply to 2DMaxLST!!)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:51:13 PM

Posts: 4434
Joined: 6/20/2006
From: MIAMI, FL, USA
Status: offline

quote:

ORIGINAL: 2DMaxLST!!

From the manual...

Using this info I extrapolate a ratio past the ring and pinion of 3.24......

but how do u caculate the pinion gear on the clutch and the spur gear???

the stock clutch bell is 22 teeth but the teeth have a 0.8 pitch while the 26 im running is 1.0 pitch

looking at the diffrence in size from a few clutck bells i have a size 20t bell with a 0.8 pitch is about the siem diamter as a 16t 1.0 pitch gear

_____________________________

-= THE WORLD IS YOURS =-

(in reply to 2DMaxLST!!)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:55:28 PM

Posts: 4862
Joined: 10/10/2004
From: San Antonio, TX, USA
Status: offline

I took 7.96/(54/22) = 8.25/(56/22) = 8.54/(58/22) = 3.24~3.25.

_____________________________

Tangled up in Blue.

(in reply to MiamizFinest)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:57:17 PM

Posts: 4862
Joined: 10/10/2004
From: San Antonio, TX, USA
Status: offline

Gear pitch do not effect the ratio.

_____________________________

Tangled up in Blue.

(in reply to 2DMaxLST!!)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:58:25 PM

Posts: 1060
Joined: 2/3/2007
From: , UNITED KINGDOM
Status: offline

quote:

ORIGINAL: 2DMaxLST!!

From the manual...

Using this info I extrapolate a ratio past the ring and pinion of 3.25......

so you pinion and spur yield a overall ratio of 1.46 * 3.25 = 4.745

Ok, this makes sense to me.
4x3.14 = 12.56inches...

3.25 * 1.46

43000/4.745 = 9062.17rpm

12.56 * 9062.17 = 113820.86inchs per minute...

113820.86/12 = 9485.07 feet per minute..

9485.07 * 60 = 569104.3 feet per hour...

569104.3/5280 = 107.785mph..........

YES!!!!

Now that seems more feasible....lol...i've had figures ranging from 60-near 200!!!

_____________________________

When I die, I want to go in my sleep like my grandfather,not screaming
like the passengers in his car at the time.

(in reply to 2DMaxLST!!)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 10:59:39 PM

Posts: 1060
Joined: 2/3/2007
From: , UNITED KINGDOM
Status: offline

Yes as yer man says the actual pitch of the gear will not affect the ratio...it's the ammount of teeth!

_____________________________

When I die, I want to go in my sleep like my grandfather,not screaming
like the passengers in his car at the time.

(in reply to Anthoop)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 11:01:47 PM

Posts: 4434
Joined: 6/20/2006
From: MIAMI, FL, USA
Status: offline

Ok so we all agree the expected PAPER top MPH should be 107 MPH??? ofcrouse subtracting the wind resistance???

anyone in high skool that whats to take this eqution to skool FEEL FREE TO DO SO!!!

_____________________________

-= THE WORLD IS YOURS =-

(in reply to Anthoop)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 11:06:03 PM

Posts: 1060
Joined: 2/3/2007
From: , UNITED KINGDOM
Status: offline

Ha it's not only wind resistance....also drivetrain losses.Our theory here counts for very little really....but it's nice to know.

_____________________________

When I die, I want to go in my sleep like my grandfather,not screaming
like the passengers in his car at the time.

(in reply to MiamizFinest)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 11:09:52 PM

Posts: 4434
Joined: 6/20/2006
From: MIAMI, FL, USA
Status: offline

quote:

ORIGINAL: Anthoop

Ha it's not only wind resistance....also drivetrain losses.Our theory here counts for very little really....but it's nice to know.

yup u just reminded me i need to change these dam drive shaft things there huge the roating mass must be a killer i need to get a set of the CVD's ill place the order this week

from on paper whats a good ESTAMATE for real world ??? 30-25-20 % off what was caculated?

_____________________________

-= THE WORLD IS YOURS =-

(in reply to Anthoop)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 11:22:56 PM

Posts: 1060
Joined: 2/3/2007
From: , UNITED KINGDOM
Status: offline

Personally i would guesstimate you'll see a diifference of 10-20%....every car will be different....at least with your current ratio you wont run out of gears!It'll be aerodynamics and the lack of torque holding you back.

_____________________________

When I die, I want to go in my sleep like my grandfather,not screaming
like the passengers in his car at the time.

(in reply to MiamizFinest)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 11:26:07 PM

Posts: 2260
Joined: 7/19/2007
From: johnstown, PA, USA
Status: offline

ill take a guess that with all the other factors the top speed will range from 65mph-80mph (thats kinda high though)

_____________________________

92% of teens have switched to rap music if you are part of the other 8% put this in your sig.

(in reply to Anthoop)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 11:35:48 PM

Posts: 4434
Joined: 6/20/2006
From: MIAMI, FL, USA
Status: offline

quote:

ORIGINAL: Anthoop

Personally i would guesstimate you'll see a diifference of 10-20%....every car will be different....at least with your current ratio you wont run out of gears!It'll be aerodynamics and the lack of torque holding you back.

if the motor cant push it threw the wind i can always borow a novarossi 528 from one of my other cars

40,000 rpm

my guess top speed will be somewhere between 80 and 90 mph

_____________________________

-= THE WORLD IS YOURS =-

(in reply to Anthoop)

RE: Soon To Be The Fastest Jato On RCU!!!!! - 11/8/2007 11:41:03 PM

Posts: 1060
Joined: 2/3/2007
From: , UNITED KINGDOM
Status: offline

Yes my guess would by 80's!
Oh and 528...yes put it in there!

Attachments

Click to see fullsize image.

Click for fullsize

_____________________________

When I die, I want to go in my sleep like my grandfather,not screaming
like the passengers in his car at the time.

(in reply to MiamizFinest)