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Joćo Costa
Joined: 30 Nov 2010 Posts: 55 Location: Portugal, Not USA state, Porto
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Posted: Fri Nov 09, 2012 12:24 pm Post subject: Improving seat position |
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i really need to improve my seat position and i'm searching for more options without have to change any part like seat or anything like that.
so the two differences i made between this picture and present are: put the pedals as long as i could and put one washer(1cm) on front of the seat to put my head a little more to the rear
here is the picture:
this is a jarno trulli jt3 and it's fully equiped with OTK parts like they sold it.
i'm 183cm tall and for my height i consider i have long legs.
what do you advise to change to improve my seat position? to have more strained legs.
and what do you think about steering wheel height? maybe a little bit low than i need? |
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Randy Mckee
Joined: 23 Jul 2001 Posts: 746 Location: United States, California,
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Posted: Fri Nov 09, 2012 1:49 pm Post subject: |
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I'll take a stab... the obvious choice is to move the seat back.
Ok, maybe you like your scaling where it is, but I know someone that is at least 6'2" (188 cm) and his seat is way back. His kart still scales well, so maybe he has heavy legs. Regardless, it's worth trying in your case. _________________ Randy
#123 TonyKart - S4 Stock Honda |
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Joćo Costa
Joined: 30 Nov 2010 Posts: 55 Location: Portugal, Not USA state, Porto
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Posted: Fri Nov 09, 2012 2:06 pm Post subject: |
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sorry to forget in mention that....my seat is all the way to the back.
and it's by the dimensions on the OTK seat guide
the seat is an OTK |
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John Mulvihill
Joined: 14 Oct 2001 Posts: 1142 Location: United States, New York,
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Posted: Fri Nov 09, 2012 2:10 pm Post subject: |
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You might also want to consider extending the front porch to move weight forward.
John _________________ I bowl overhand.......... |
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Joćo Costa
Joined: 30 Nov 2010 Posts: 55 Location: Portugal, Not USA state, Porto
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Posted: Fri Nov 09, 2012 2:45 pm Post subject: |
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i think i won't need the front porch.
i need to use ballast to achieve minimum weight where i race, i have my kart well balanced |
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Joe Palmer
Joined: 19 Sep 2006 Posts: 151 Location: United States, Florida, St. Augustine
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Posted: Fri Nov 09, 2012 3:09 pm Post subject: |
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The OTK seat guide, is just that a guide. Keep in mine they may be developing their seat guide based on 5'3'' midgets. If the kart scales perfectly where you want it, but your knees are in your chest, it won't be fun to drive.
You may want to look at a different seat. Tillett makes various seat models. Tony Kart may even offer a different model seat in the same size as you require. Tony kart also offers a very well designed front porch extension. |
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Joćo Costa
Joined: 30 Nov 2010 Posts: 55 Location: Portugal, Not USA state, Porto
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Posted: Fri Nov 09, 2012 3:46 pm Post subject: |
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yes, i think the seat it will be a good upgrade, maybe a T11 offers me the best seat position i can achieve.
regarding the front porch, i think it will be too much, i think i only need a few more cm's
or do you advise another seat? |
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Tim Salvino
Joined: 20 Nov 2010 Posts: 257
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Posted: Fri Nov 09, 2012 8:23 pm Post subject: |
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Get the front porch extension.
Either buy it or make one. It will be the best thing you've even gotten!!
I'm 6'2" and my dad is 6'4" and we have one on our CRG, it's almost like driving a limo  |
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Joćo Costa
Joined: 30 Nov 2010 Posts: 55 Location: Portugal, Not USA state, Porto
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Posted: Sat Nov 10, 2012 9:01 am Post subject: |
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maybe i will make a front porch, it will help my driving position and could make the seat a setup tool.
right now, i only can move up the seat, for the back or below it's impossible.
and about the seat, if i choose i a seat like t11 it only helps with my arms , not my legs right?
and regarding the steering column, do you think it's too low? |
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Oscar Biondi
Joined: 27 Sep 2011 Posts: 219 Location: United States, California, Carmichael
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Posted: Sat Nov 10, 2012 9:11 am Post subject: |
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You may be able to install the t11 a bit lower so it may help your legs a bit. But it will give you more arm distance. I would try the t11t, a longer steering shaft and an angled steering wheel hub.
Last edited by Oscar Biondi on Sat Nov 10, 2012 9:14 am, edited 1 time in total |
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Oscar Biondi
Joined: 27 Sep 2011 Posts: 219 Location: United States, California, Carmichael
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Posted: Sat Nov 10, 2012 9:13 am Post subject: |
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| Double post |
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Joćo Costa
Joined: 30 Nov 2010 Posts: 55 Location: Portugal, Not USA state, Porto
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Posted: Sat Nov 10, 2012 9:24 am Post subject: |
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| and are you saying to do that first? without purchase the front porch? |
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Oscar Biondi
Joined: 27 Sep 2011 Posts: 219 Location: United States, California, Carmichael
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Posted: Sat Nov 10, 2012 9:45 am Post subject: |
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| If you don't want an extended porch I would try a longer column and a t11 or similar seat. I guess it depends on your preference and how much you want to spend. See if you can increase the angle on the column too, that should be free. |
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Joćo Costa
Joined: 30 Nov 2010 Posts: 55 Location: Portugal, Not USA state, Porto
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Posted: Sat Nov 10, 2012 9:49 am Post subject: |
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i will try first the new seat, new steering column and an angled boss.
i will try to increase the angle on the column, i have a otk bush with 4 positions, maybe it will help a bit |
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Ryon Beachner Advertiser

Joined: 26 Mar 2007 Posts: 344
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Posted: Sat Nov 10, 2012 10:31 am Post subject: |
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| Joe Palmer wrote: | The OTK seat guide, is just that a guide. Keep in mine they may be developing their seat guide based on 5'3'' midgets. If the kart scales perfectly where you want it, but your knees are in your chest, it won't be fun to drive.
You may want to look at a different seat. Tillett makes various seat models. Tony Kart may even offer a different model seat in the same size as you require. Tony kart also offers a very well designed front porch extension. |
This is not at all true. Ardigo and Dreezen are both over 5'9 and Camponeschi is not short by any means. Although they do deal with shorter drivers such as in KF3, the seat position remains largely the same in order to obtain data that is relevant to the teams experience. For this very reason OTK offers a rudder pedal system for shorter drivers, and an extended porch kits for very tall drivers.
The tricky part is that the JT3 is not the same frame geometry as the rest of the OTK family and was last produced in 2004. Much before the current specs were established. I'll go through my old documentation on the early Kosmics and see if I can find something more accurate to his application.
Also, so everyone is aware, the OTK seat and Tillett T11 are very similar with the same back angle nd flat bottom only differing in regards to material and stiffness. I would recommend he stay with the factory seat. _________________ 2Wild Karting
www.2wildkarting.com
Shop: (949) 206-9906 |
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