ShermanSim

iTrader: (2)

Pre owned O.S. Speed Spec 1 .12 Engine Used 1 Gal of Fuel. New Con Rod, just Broken in

$175.00 Or best offer

madjack

iTrader: (28)

Recently purchased the spec II motor and I'm looking for a pipe/manifold recomendation.

Thoughts on the O.S. T-1040SC L52 Complete Set?

Thanks on advance,

John

Rick Vessell

iTrader: (10)

The 1040 is a good pipe setup. Good fuel mileage and excellent power. The only downside is the lug for the setscrew on the end. The threads strip easily if you try to tighten it down too much. I usually run red loctite and just snug the setscrew down. I then put a collar on the end of the pipe hanger for extra insurance.

madjack

iTrader: (28)

Great information, thanks. The collar looks like a good fix

1040 on the way

RC MARKET

iTrader: (12)

Spec 2 very lower price now !

horizon644

iTrader: (2)

Anyone knows the exact bearing dimensions for the OS TZ? ID/OD/Width?

Rick Vessell

iTrader: (10)

Horizon,

Rear - 12x21x5
Front - 7x17x5

The Speed version comes with a ceramic rear bearing factory.

madjack

iTrader: (28)

for those who have owned both spec I and spec II, care to coment on the design/performance differences?

Rick Vessell

iTrader: (10)

The spec II has the top end that was missing from the spec I. It also has more all around power and better mileage too. With the new crank in the spec II it revs much easier also.

romuald31

Hello from France,

and now, the SpecII is available with the aluminium head unstead of the magnesium one. The price is falling down...

Au revoir.

madjack

iTrader: (28)

judging by the results at the recent JMRCA 1/10th 200mm race the new OS looks competitive to say the least!

http://www.kawahara-racing.co.jp/JMR...2007.home.html

Sportsman:
1＆TQ 高安　理寛 選手 KYOSHO V-ONE RRR O.S ZAC (KAWAHARA)
2 村上　友弘 選手 KYOSHO V-ONE RRR O.S ACTIVE
3 川野　貴義 選手 KYOSHO V-ONE RRR O.S ZAC (KAWAHARA)
4 大岩　秀行 選手 MUGEN MTX-4 O.S ZAC (KAWAHARA)
5 渡辺　秀男 選手 KYOSHO V-ONE RRR ORION ZAC (KAWAHARA)
6 苣木　信彦 選手 MUGEN MTX-4 O.S ACTIVE
7 中村　博実 選手 MUGEN MTX-4 NOVAROSSI ZAC (KAWAHARA)
8 岩名　敦 選手 KYOSHO V-ONE RRR ORION KYOSHO
9 緒方　政昭 選手 SERPENT 720 O.S ACTIVE
10 鈴木　典道 選手 MUGEN MTX-4 O.S ZAC (KAWAHARA)

Open:
1＆TQ 下　高章 選手 KYOSHO V-ONE RRR O.S KYOSHO
2 北澤　秀朗 選手 MUGEN MTX-4 O.S -
3 北出　次雄 選手 KYOSHO V-ONE RRR O.S ZAC (KAWAHARA)
4 佐橋　祐也 選手 SERPENT 720 NOVAROSSI PLUS12 ZAC (KAWAHARA)
5 由留木　一也 選手 MUGEN MTX-4 NOVAROSSI PLUS12 ZAC (KAWAHARA)
6 安藤　忠彦 選手 MUGEN MTX-4 NOVAROSSI PLUS12 ZAC (KAWAHARA)
7 古川　賢 選手 KYOSHO V-ONE RRR JP RACING EAGLE ZAC (KAWAHARA)
8 三瓶　達也 選手 KYOSHO V-ONE RRR O.S ZAC (KAWAHARA)
9 内藤　信夫 選手 MUGEN MTX-4 NOVAROSSI PLUS12 ZAC (KAWAHARA)
10 高橋　広文 選手 MUGEN MTX-4 NINJA ZAC (KAWAHARA)

asil

guys.. I have a complete SpecI and going to buy a SpecII which has a broken conrod and piston and liner is bad.. Do you have any idea if SpecI and SpecII have the same piston/liner and crankcase??

If so then I'll be able to put together a SpecII if crankcases are identical..

Also anyone know base settings for SpecI and SpecII?

Thanks in advance..



Asil

Rick Vessell

iTrader: (10)

Asil,

Crankcase is fine. Piston and sleeve is different along with the crankshaft.

Settings:
high speed 3 turns out
low speed flush

Socko

asil

Thanks Socko.. I will give it a try with specI piston/sleeve and specII crankshaft.. will inform you about the result...


Asil

ioxqq

Want to know what is the different for the 12TZ3 SpecII and the AL version thanks!