JUN 4B11 2.3L Custom Kit EX
#1
JUN 4B11 2.3L Custom Kit EX
Wasn't sure if word was out on this just yet:
http://www.jdmtuningnews.com/articles/62308f.htm
JUN AUTO's Machine Shop has just placed its CUSTOM KIT EX 2.3L For 4B11 on sale in Japan for Mitsubishi's Lancer Evolution X engine. This Custom Kit expands engine displacement by enlarged bore and stroke by providing more power and torque capabilities of your Stroker Assemblies - Includes JUN Crankshaft, JUN Piston Kit and JUN Super Connecting rods. JUN continues to hone it's high quality in the areas of lightweightness, high strength, and rate of balance with these new parts. A higher response and torque is offered. You can use it broadly in various forms of autosport such as circuit running, drag racing etc.. Engine piston displacement becomes 2307cc, the bore and stroke diameter is 87mm x 97mm. Retail is 472,500 yen including tax. Contents include: PISTON KIT, I-BEAM RODS, FORGED CRANK SHAFT, OIL JETS.
http://www.jdmtuningnews.com/articles/62308f.htm
JUN AUTO's Machine Shop has just placed its CUSTOM KIT EX 2.3L For 4B11 on sale in Japan for Mitsubishi's Lancer Evolution X engine. This Custom Kit expands engine displacement by enlarged bore and stroke by providing more power and torque capabilities of your Stroker Assemblies - Includes JUN Crankshaft, JUN Piston Kit and JUN Super Connecting rods. JUN continues to hone it's high quality in the areas of lightweightness, high strength, and rate of balance with these new parts. A higher response and torque is offered. You can use it broadly in various forms of autosport such as circuit running, drag racing etc.. Engine piston displacement becomes 2307cc, the bore and stroke diameter is 87mm x 97mm. Retail is 472,500 yen including tax. Contents include: PISTON KIT, I-BEAM RODS, FORGED CRANK SHAFT, OIL JETS.
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Live rates at 2008.06.23 15:11:49 UTC
472,500.00 JPY = 4,377.35 USD
Japan Yen United States Dollars
1 JPY = 0.00926423 USD 1 USD = 107.942 JPY
Thats how it's done.
XE.com
$4377.35 for a stroker kit from them isn't a bad price.
anyone get pricing on the cams, valvesprings and retainers?
Thanks,
Chris
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Live rates at 2008.06.23 15:11:49 UTC
472,500.00 JPY = 4,377.35 USD
Japan Yen United States Dollars
1 JPY = 0.00926423 USD 1 USD = 107.942 JPY
Thats how it's done.
XE.com
$4377.35 for a stroker kit from them isn't a bad price.
anyone get pricing on the cams, valvesprings and retainers?
Thanks,
Chris
472,500.00 JPY = 4,377.35 USD
Japan Yen United States Dollars
1 JPY = 0.00926423 USD 1 USD = 107.942 JPY
Thats how it's done.
XE.com
$4377.35 for a stroker kit from them isn't a bad price.
anyone get pricing on the cams, valvesprings and retainers?
Thanks,
Chris
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If you look at all the most powerful 4 cylinder engines in the world (1000hp+) whether they are Honda, 4G, Ecotec, or other, they do not run huge strokes. They run a smaller stroke and turn the motor above 10,000. Large stroke motors are hard on rod bearings, rings, and the cylinder bores. At 35psi and above, you distort a bore REAL fast.
It is silly on a turbo car. If we were building an all motor 4B11, then that would be a great way to get power
How many 4G guys on a 100mm stroke are looking at rod bearing and ring wear on a regular basis? The average guy isn't, and every single person I know that runs a 2.3 4G has had a rod bearing failure at some point. I know there will now be a handful of guys get on here saying they have never had an issue and that is great, but have them take their motor apart and take a look. With modern turbocharger technology, there is no reason to run a stroke like that and have to put up with the increased wear and tear. Just my opinion.
Last edited by DRAG; Jun 23, 2008 at 10:05 AM.
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But don't get all butthurt, my aim isn't to attack JUN. There are different ways to make power. The bigger the turbo, the more benefit you will see from revving a four cylinder. A stroked engine will have super high piston speeds and be more prone to failure from wear. Diminishing returns will set in really fast. Its been proven with some built 4G63s. In AWD cars like these, low end torque in every gear but first is overrated and can be cured by downshifting, provided you have the RPM headroom to stay on boil after upshift.