Cosworth + 4B11 = One happy Genesis Owner - Hyundai Genesis Forum
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post #1 of 36 Old 12-03-2008, 11:01 AM Thread Starter
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Cosworth + 4B11 = One happy Genesis Owner

Vivid Racing and Cosworth Engineering USA have a very close relationship. We've been dealing direct with Cosworth since day 1, when they launched their US based operation a few years back. Cosworth develops, in my opinion, some of the best products for Subaru, Mitsubishi, Ford, Nissan etc. They're extensive R&D processes coupled with their long history in professional racing allows them to produce high quality and race proven products for street applications. When you think Cosworth, think quality, think reliability!

Cosworth has been working hard on being on the forefront of developing products for the 4B11 Engine. Below I have pictures of products already for sale on our site!


Pictured here, we have the 4B11 Cosworth MX1 Camshaft set.
Intake: 266 deg. 10.8mm
Exhaust:266 deg. 10.4mm lift


These cams can be seen on our site HERE.

These cams can be used with the stock valve springs, but for sustained high rpm use (road racing) or beyond the factory rev limit, Cosworth single valve springs should be installed (part# 20004844, MSRP $325).

+40whp peak to peak and +30 lb-ft. torque with a big improvement in power band width (these are slightly inflated Dynapack numbers though…).

THESE DYNO GRAPHS ARE NOT FROM VR, THESE ARE INDEPENDENT TESTS FROM ROAD RACE ENGINEERING USING MX1 PROTOTYPES.




..A little tweaking here and there...




We're still awaiting info/numbers on the Cosworth MX2 grinds.

Cosworth is also manufacturing a Fuel Rail, as well as Head Studs. The fuel rail is a direct replacement for the stock rail with more flow capacity through the rail and can also be used when an external fuel pressure regulator needs to be plumbed in. The H-11 head studs are much stronger than the industry standard ARP 8740 head studs and are similar to the ARP L19 studs. L19 = fancy name for H11. Anyhow, the Cosworth studs have a proper dog tooth at the bottom (seats on cylinder block) to preload the fastener unlike the ARP L19 studs. Cosworth H-11 studs are available for SR20, 4G63, EJ20/25 engines.


You can check out more info on this stroker kit, HERE.

Feel like going big? How about stroking the 4B11 to 2.2 liters! The 2.23L 4B11T kit complete with crankshaft, rods, and pistons. The crank retains the ability to bolt on the factory crank trigger wheel, rods are 4340 chrome moly, and the pistons are a brand new forging specifically for the 4B11T and machined with typical Cosworth precision. The pistons also feature the Xylan green skirt coatings, polished decks, and are completely deburred out of the box too.

Though currently the differences in the Evo X 4B11T and the Genesis' have yet to be disclosed, if everthing does indeed bolt up to be the same, Genesis owners are going to have a HUGE head start in the tuning department. A special thanks goes out to Mr. Eric Hsu of Cosworth Engineering for the info into the 4B11 R&D.

Last edited by BK@VividRacing; 12-05-2008 at 09:44 AM.
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post #2 of 36 Old 12-03-2008, 11:24 AM
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Tony thanks for this info. Cosworth's involvement in this area is great. Some of my favorite cars that they worked on or produced were the Sierra RS Cosworths and Escort's Cosworths and they are well known for their racing heritage in general. Like you mentioned the similiarities and differences on the 4b11T engines and the Theta engine is yet to be fully known but if they are similar enough then Genesis Coupe owners will be in VERY good hands when it comes to aftermarket support.
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post #3 of 36 Old 12-03-2008, 12:41 PM
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That's excellent. I'll, personally, be getting the v6. But it's awesome to see some great potential mods from a name like cosworth.
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post #4 of 36 Old 12-03-2008, 01:37 PM Thread Starter
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I'm anxious to see how the aftermarket supports the V6 model. I'm confident all suspension mods will remain the same, but wondering how quickly bolt-ons will be provided.
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post #5 of 36 Old 12-04-2008, 11:45 AM
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post #6 of 36 Old 12-04-2008, 11:10 PM
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Quote:
Originally Posted by BK@VividRacing View Post
I'm anxious to see how the aftermarket supports the V6 model. I'm confident all suspension mods will remain the same, but wondering how quickly bolt-ons will be provided.
With your pictures send to Korea, our engineer and tech dept. have confirmed its identical as 2.0 turbo Theta for those cams.
If you can't believe, you can buy engine from me (posted other thread) to confirm yourself.

2.0 or 3.8 engine, tranny, harnesses, ecu to run engine dyno.

Price seems to be very good for cams. I have their Cosworth pistons for Z and some extra spare parts with me...high comp, low comp, standard comp pistons, con rods, fuel rail but hard to sell due to high cost.

One of my buyer in Korea was Cosworth distributor, but they quit due to slow part delivery for carbon plenum for Z cars. There is no Subaru, no S2000, no Lan Evo in Korea except for some grey import cars, so Cosworth parts weren't that popular or known.

With newer parts develop for Hyundai by Cosworth, I am sure they want to regain distributorship.

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I've driven friend's RS200 Cosworth brought from Japan to Korea with scramble boost miss firing system set to 2.0 bar boost at start had awesome pull with AWD car. The owner of the car rolled the car on highway after a week...his family owns many slot machine Casino in Japan with Yakusa, so he bought new R34 Skyline GTR next day at then...
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post #7 of 36 Old 12-04-2008, 11:42 PM
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cosworth has great customer service. Recently i had a cam snap in my evo and they sent me a replacement out withing 24 hours no questions asked.

The cams made great power too. I would buy them again for any car. Still dont know what happend ??


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post #8 of 36 Old 12-05-2008, 02:32 AM
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Thanks for all the info guys. More & more confidnece is building regarding after market support for this car. I'm beginning to believe the sky will be the limit & I am ecstatic.

Sponsored By: Columbus Body Works / ARK Performance / Modern Automotive Performance / Forged Performance
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post #9 of 36 Old 12-05-2008, 10:06 AM Thread Starter
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Quote:
Originally Posted by PowerAXEL View Post
With your pictures send to Korea, our engineer and tech dept. have confirmed its identical as 2.0 turbo Theta for those cams.
If you can't believe, you can buy engine from me (posted other thread) to confirm yourself.

2.0 or 3.8 engine, tranny, harnesses, ecu to run engine dyno.

Price seems to be very good for cams. I have their Cosworth pistons for Z and some extra spare parts with me...high comp, low comp, standard comp pistons, con rods, fuel rail but hard to sell due to high cost.

One of my buyer in Korea was Cosworth distributor, but they quit due to slow part delivery for carbon plenum for Z cars. There is no Subaru, no S2000, no Lan Evo in Korea except for some grey import cars, so Cosworth parts weren't that popular or known.

With newer parts develop for Hyundai by Cosworth, I am sure they want to regain distributorship.

Sabbasaun
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I've driven friend's RS200 Cosworth brought from Japan to Korea with scramble boost miss firing system set to 2.0 bar boost at start had awesome pull with AWD car. The owner of the car rolled the car on highway after a week...his family owns many slot machine Casino in Japan with Yakusa, so he bought new R34 Skyline GTR next day at then...



Damn...the Hyundai 4B11 head is the same then in fact? WOW that's huge man.
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post #10 of 36 Old 12-05-2008, 08:02 PM
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Man, the more I read all of you guy's posts, the more I contemplate doing. Now I'm thinking hard about going into the engine, at least upgrading the cams. Since I've already decided to upgrade fuel pump & injectors, why not upgrade fuel rail as well? Is this ever going to stop? Somebody stop me, put me on restriction, something, B4 I really get out of hand....

Sponsored By: Columbus Body Works / ARK Performance / Modern Automotive Performance / Forged Performance

Last edited by Tufast; 12-05-2008 at 08:04 PM. Reason: mis-spel
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