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1  Mower Building / Setup Help / Driveline / Re: Speed calculator for peerless 400 on: May 11, 2015, 11:42:49 PM
Thanks!!! Steven and Zach. I marked my flywheel and wheel in each gear and the final ratios were dead on!
Thanks for your help. I've been going a lot faster than I thought. Lol and ED KING I always go fast even if I get beat, these are lawnmowers !!
2  Mower Building / Setup Help / Driveline / Re: Speed calculator for peerless 400 on: May 11, 2015, 09:17:39 AM
I'm shouting for 60 mph in 2nd gear, so I have a 20/23/24/26 trans sprocket I should be able to get close. I'm going to try marking the flywheel and tire and rotating in each gear to get the final ratio and see if it's the same or close to what we have above. Thanks for your help!!!
3  Mower Building / Setup Help / Driveline / Re: Speed calculator for peerless 400 on: May 10, 2015, 10:41:28 PM
^^^ I tryed and something's wrong with my math. 662 mph. Lol

If I switch the trans gear ratio around I get
1st 46.45 mph
2nd 69.94 mph
3rd 94.37 mph
At 7000 rpm
I can start of in second gear and seems hard to believe that it will go 70 mph. It should stall trying, it's a stock lawnmower clutch .
4  Mower Building / Setup Help / Driveline / Re: Speed calculator for peerless 400 on: May 10, 2015, 08:35:16 PM
Engine pulley 8" trans 5"= 1.6
Trans sprocket. 26 axle 44= 0.5909
Crown 33 tooth. Pinion 13 = 2.5384
Tranny 1st 16/39= 0.41025
           2nd 21/34= 0.61764
           3rd 25/30= 0.83333
Tire roll on my 13" tire is 41".

Pullies 1.6 x sprockets 0.5909= 0.94544
1st gear 0.41025x piņon crown ratio 2.5384=1.04137
Final gear ratio 1st 1.04137-1
                      2nd=  1.56781-1
                      3rd=   1.9999
7000 rpm/ 0.41025=17062.766
17062.766x 41(wheel) = 699573.4
699573.4/12= 58297.783
58297.783x 60=  3497866.9
3497866.9/5280= 662.47mph in first gear. Lol lol
                        
Must be doing something wrong here???
I tryed swaping my 1-3rd gear ratio from
39/16= 2.4375 to 16/39= 0.41025 and it made it worse.
Man I'm bad at math.
5  Mower Building / Setup Help / Driveline / Re: Speed calculator for peerless 400 on: May 10, 2015, 05:08:38 PM
1st 39/16
2nd 34/21
3rd 30/25
I put 1st back in as a pit gear . Going to a much bigger track this year .
Yes crown is 33
Pinion          13
6  Mower Building / Setup Help / Driveline / Re: Speed calculator for peerless 400 on: May 10, 2015, 09:49:39 AM
Thanks for your help!!!
7  Mower Building / Setup Help / Driveline / Re: Speed calculator for peerless 400 on: May 10, 2015, 12:19:08 AM
Thanks. How do you do the tire roll to calculate mph . Final ratio in each gear x length of tire roll? To find out speed in each gear?
8  Mower Building / Setup Help / Driveline / Speed calculator for peerless 400 on: May 09, 2015, 08:00:36 PM
I've seen the EC one but does not work on the 400's and doesn't show all the math. Tryed Roosters and it's for 1:1 box and messed it up, sorry. I sent you a message.  Does anyone know the formula to figure out from pulleys , to 3 speed trans in each gear to, sprockets and tire diameter to find the final ratio in each gear and mph in each gear at 7000 rpm to get a ruff speed. I have  all the tooth counts inside trans and everthing else just don't know the math. Any help would be greatly appreciated:)
9  Race and Event Announcements / USLMRA Races / Re: 2015 USLMRA Rule Book Update from National Tech. Director on: May 09, 2015, 08:54:35 AM
There's a fxt with a drive shaft for sale on a lawnmower racing Facebook page. Jamie J-Mow Muarice. ( you have to scroll down abit to see pic.
10  Race and Event Announcements / USLMRA Races / Re: Western Mower World Series Race #1 on: May 08, 2015, 10:54:36 PM
Two more weeks, really looking forward to some great racing:)
11  Mower Building / Setup Help / Chassis / Re: steering wheel on: May 04, 2015, 08:44:55 PM
Went from 13 to 15". A little more leverage goes a long way.
12  General / Coffee Shop / Re: Mower racing numbers on: May 04, 2015, 08:38:56 PM
Good to know Rodney. Thanks
13  General / Coffee Shop / Re: Mower racing numbers on: May 03, 2015, 02:40:50 PM
Ok sounds good Jim:) Thanks for the info Paul:)
14  General / Coffee Shop / Re: Mower racing numbers on: May 02, 2015, 11:38:35 PM
Ok , thanks. I run under Arma but going to uslmra races so if some else has 27 can I just use some tape to add a number? ( or I'll get a couple extra #'s to add)? Thanks
15  General / Coffee Shop / Mower racing numbers on: May 02, 2015, 10:44:59 AM
Can you have the same number on each class mower. Like 27 cp/ 27 Bp 27/ ap, or do you have to have different #'s on each .
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