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Old 11-27-2009, 10:43 AM   #1
modaddict
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OMGHi2U *Looking for a Crankshaft? List of Crank Manufacturers*

This thread is being created to help those in need of better rod bearing oiling at high rpm. If you're a noOB and haven't read the stickies at the top of the forum, then you probably don't know the drilling in the OEM crankshaft is less than optimal. So, with that said...........

Are you Baller?
Probably not.

Do you NEED an aftermarket crankshaft?
Probably not.

Do you want to rev over 8k with any hint of rod bearing oiling reliability?
probably don't need to on your vf39 or 20g. But hey, you're the age of 16-24 and still on daddy's teet and have his $ to spend. BTW, how's highschool or college going?

Here's a list of crank manufacturers for our engines.
Note: This may not be all inclusive so please post away if you have a company to add.

www.crawfordperformance.com
www.cosworthusa.com
www.k1technologies.com
www.furiousracingparts.com (someone needs to be the test mule)
www.cobbtuning.com (at one time they made cranks. not sure if they still do)
www.briancrower.com
www.maxspeedingrods.com (someone needs to be the test mule)
www.manleyperformance.com
http://www.tomei-p.co.jp/_2003web-ca...com-eng-e2.htm (ej22 but same 79mm stroke)
www.raw1performance.com (modifies the oiling passages in a stock subaru crankshaft. You be the judge)
http://www.rogerclarkmotorsport.co.u...?productID=659 (interesting as they have decreased the main bearing diameter)
http://www.arrowprecision.co.uk/


FWIW:
Subaru crank part numbers for EJ25:
12200AA370
12200AA400
12200AA430

Thoughts, opinions?
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Last edited by modaddict; 11-28-2009 at 01:08 PM.
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Old 11-27-2009, 10:47 AM   #2
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I think the the boss man crank is the billet one offered by Cosworth, but isn't it big $$?

As for Ron's crank (Raw Performance) he does alot more to it then what you listed, he just doesn't disclose exactly what he does so others don't know his secrets. It's evident the man can build a mean motor, soo....
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Old 11-27-2009, 10:54 AM   #3
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Quote:
Originally Posted by D Money View Post
I think the the boss man crank is the billet one offered by Cosworth, but isn't it big $$?

As for Ron's crank (Raw Performance) he does alot more to it then what you listed, he just doesn't disclose exactly what he does so others don't know his secrets. It's evident the man can build a mean motor, soo....
I think cosworth's crank is $3000-3500.

I've seen the pics Ron does to his cranks. In fact, the angles were even posted. He modifies the drilling, balances and polishes a crank.

But it's not on all of his engines.....
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Old 11-27-2009, 11:49 AM   #4
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Cobb no longer sells cranks. I got the last Cobb Tuner Crank they had.
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Old 11-27-2009, 11:56 AM   #5
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Quote:
Originally Posted by mick_the_ginge View Post
Cobb no longer sells cranks. I got the last Cobb Tuner Crank they had.
I knew that

Do you know who is the manufacturer of the crank?
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Old 11-27-2009, 12:25 PM   #6
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^Didn't Arrow http://www.arrowprecision.co.uk/ manufacture the Cobb crank. If not they also make cranks for Subaru's among many others.
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Old 11-27-2009, 12:26 PM   #7
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from the pictures I have from furious and the ones posted on maxspeedingrods, I think they are the exact same product... or the exact same scammer.
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Old 11-27-2009, 12:32 PM   #8
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actually I retract that. I do see differences in the pictures, but they are really really similar.
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Old 11-27-2009, 12:40 PM   #9
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Quote:
Originally Posted by modaddict View Post
I knew that

Do you know who is the manufacturer of the crank?
So according to K1 they supplied "some" cranks to Cobb. They did not confirm if mine (from pictures) was one of their cranks or not.
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Old 11-27-2009, 12:55 PM   #10
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FWIW: I've seen some cranks listed at EN24 and others as EN40B for materials. Here are the two materials:

This was the "maxspeedingrods"

AS1442 AS1448 A.I.S.I. SAE: 4340
BS 970 1955: EN24
Typical Analysis: .4%C .8%Cr 1.7%Ni .2%Mo
Similar Specifications, Other Equilvalents Or Names: Bohler NMH; R16; VAGS Assab 705

Typical Uses:
A steel with a good hardenability which can be heat treated to a wide range of tensile strengths combined with toughness. Suitable for highly stressed gears, shafts, bolts and machine parts



This was the cosworth and the arrowprecision:

SAE or A.I.S.I., DIN:
BS 970 1955: EN40B
Typical Analysis: .25%C 3%Cr .6%Mo
Similar Specifications, Other Equilvalents Or Names: Hykro
Typical Uses:

Offers a medium strength core combined with good ductility and shock resistance. Nitriding produces a very hard wear resistant surface

Last edited by modaddict; 11-27-2009 at 01:07 PM.
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Old 11-27-2009, 01:30 PM   #11
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I have a Brian Crower crank in my motor, I'm not really sure who made this unit.

But it was interesting to read a while back that a member on here, I think it was mick_the_ginge ^, had the same problem mounting his FW to his Cobb crank.
Ended up that the raised boss on the FW end of the crank, was a few thou larger in dia. than the opening in the FW!

As the problem was identical, I am guessing they were manufactured by the same company.

My tuner ended up sending the FW out to open up half the depth of the hole, so it would fit over the boss on the end of the crank, but allow the pilot bearing to still be a press fit from the other side.

From what I understand the Manley crank is very good quality and value.

Mick discovered his fitment issue at the same time
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Old 11-27-2009, 02:14 PM   #12
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Quote:
Originally Posted by modaddict View Post
I think cosworth's crank is $3000-3500.

I've seen the pics Ron does to his cranks. In fact, the angles were even posted. He modifies the drilling, balances and polishes a crank.

But it's not on all of his engines.....
Yeah, that's crazy! $3,500 + the cost of the rest of the motor/head build. You can end up with a $20,000 motor! lol

I'm pretty sure he doesn't cross drill them any longer. Your post kinda made it sound like Ron didn't offer a good crank or something.
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Old 11-27-2009, 02:33 PM   #13
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Anyone know how the K1 billet crank stands against the Cosworth version? other than cosworth at more than double the price.
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Old 11-27-2009, 02:33 PM   #14
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Quote:
Originally Posted by D Money View Post
Yeah, that's crazy! $3,500 + the cost of the rest of the motor/head build. You can end up with a $20,000 motor! lol

I'm pretty sure he doesn't cross drill them any longer. Your post kinda made it sound like Ron didn't offer a good crank or something.
Take it at face value and don't read into it. I'm not in high school. "you be the judge". There's enough info on nasioc to figure out if you want this to be done to your crank or not.

http://www.tomei-p.co.jp/_2003web-ca...m-genesis.html

click on EJ SPEC and look at that price.
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Old 11-27-2009, 03:39 PM   #15
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haha you're real cool dude.
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Old 11-27-2009, 04:16 PM   #16
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Quote:
Originally Posted by modaddict View Post
Take it at face value and don't read into it. I'm not in high school. "you be the judge". There's enough info on nasioc to figure out if you want this to be done to your crank or not.

http://www.tomei-p.co.jp/_2003web-ca...m-genesis.html

click on EJ SPEC and look at that price.
MSRP $23,500.00 (USD)


^for the lazy
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Old 11-27-2009, 04:19 PM   #17
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Quote:
Originally Posted by D Money View Post
haha you're real cool dude.
Hey, don't get your panties in a bunch. You came into MY thread remember. Don't let the door hit you.
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Old 11-27-2009, 04:25 PM   #18
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Quote:
Originally Posted by DemiSlayer View Post
Anyone know how the K1 billet crank stands against the Cosworth version? other than cosworth at more than double the price.
There a few differences. The one is most important for me is oiling for rods.
You can find more info about cosworth here
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Old 11-27-2009, 07:34 PM   #19
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Quote:
Originally Posted by DemiSlayer View Post
Anyone know how the K1 billet crank stands against the Cosworth version? other than cosworth at more than double the price.
Ive seen K1 cranks make 1100whp in 4cyl motors. They will handle anything you can throw at them, thats for sure.
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Old 11-27-2009, 08:21 PM   #20
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Quote:
Originally Posted by modaddict View Post
Hey, don't get your panties in a bunch. You came into MY thread remember. Don't let the door hit you.
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Old 11-27-2009, 09:02 PM   #21
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hey Ryan, this is an excellent thread you started buddy, very informative

please add the RCM team Ice crank on the list, it has very interesting specs and difference with other cranks

http://www.rogerclarkmotorsport.co.u...?productID=659
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Old 11-28-2009, 08:59 AM   #22
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US Crankshaft is doing 4340 & EN30B EJ Series billets in strokes from 2.445-3.385". Disclosure: US Crank is owned by Scat.
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Old 11-28-2009, 09:30 AM   #23
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No one talks about the replacement EJ205 crank that's double crossdrilled? It can't be all about the 79mm crank....
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Old 11-28-2009, 10:14 AM   #24
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Quote:
Originally Posted by Agile Auto View Post
There a few differences. The one is most important for me is oiling for rods.
You can find more info about cosworth here
Thanks for the info.

Quote:
Originally Posted by ScorpionT View Post
Ive seen K1 cranks make 1100whp in 4cyl motors. They will handle anything you can throw at them, thats for sure.
I know AMS uses the K1 cranks. I believe a K1 crank was in their 1000+hp engine in the modified mag shootout. I think a K1 crank is in their 800whp time attack monster.

Micah had a good post about K1 and the parent companies which i'd like to post. It has good information.

This is what the K1 site says:

K1 Technologies, is part of the Performance Motorsport (PMI) Group, a subsidiary of Dover Corporation, which encompasses many highly specialized companies in the field of motorsport engine components. Through the various companies of the PMI Group, we are able to meet your needs for complete engine rotating assemblies.

Dover Corporation

280 Park Avenue
New York, New York 10017
www.dovercorporation.com


JE Pistons
With 50 years experience serving the Pros, JE Pistons is the world's leader in high performance forged pistons for automotive, marine and motorcycle applications.

JE Pistons
15312 Connector Lane
Huntington Beach, CA 92649
USA
Tel: 714/898-9763
Fax: 714/891-3454


Info@jepistons.com
www.jepistons.com





K1 Technologies
With many years in the field of designing, engineering and manufacturing connecting rods and crankshafts we will do our best to provide you with great products and world class customer service.



K1 Technologies
889 76th Street SW, Unit 6
Byron Center, MI 49315
USA
Tel: 616-583-9700
Fax: 616-878-3612


sales@k1technologies.com
www.k1technologies.com





Performance Motorsports
7201 Industrial Park Blvd.
Mentor, Ohio
USA





ProX Racing Parts
Founded in 1975, Prox Inter b.v. distributes ProX Racing Parts to practically every continent world-wide and is considered the leading brand in the engine part replacement market for motorcycles (dirt & road), moped/scooter, ATV, PWC and snowmobiles.

Worldwide Sales Office of ProX Racing Parts
P.O. Box 140
2150 AC Nieuw Vennep
The Netherlands
Tel: 31 (0)252 622485
Fax: 31 (0)252 689252
www.pro-x.com




Wiseco
For over 60 years Wiseco has been manufacturing the finest aftermarket forged pistons & performance parts for the snowmobile, motorcycle, ATV, personal watercraft, outboard marine, karting and automotive markets.

Wiseco Corporate Headquarters
7201 Industrial Park Blvd.
Mentor, OH 44060-5396
USA
Tel: 800-321-1364
Fax: 440-951-6606
questions@wiseco.com
www.wiseco.com


Quote:
Originally Posted by berdugo View Post
hey Ryan, this is an excellent thread you started buddy, very informative

please add the RCM team Ice crank on the list, it has very interesting specs and difference with other cranks

http://www.rogerclarkmotorsport.co.u...?productID=659
I will add that link. Thanks for the information. Good to hear from you my friend. Hope the weather is treating you well in P.I.


Quote:
Originally Posted by DSM_Outback View Post
US Crankshaft is doing 4340 & EN30B EJ Series billets in strokes from 2.445-3.385". Disclosure: US Crank is owned by Scat.
Very interesting. Do you mind following up on this and when it is complete, come back and post the link in this thread?

Quote:
Originally Posted by FuJi K View Post
No one talks about the replacement EJ205 crank that's double crossdrilled? It can't be all about the 79mm crank....



Alot (if not all) of the companies listed above have a 75mm option.

You have the part number for the Subaru crank that is double crossdrilled?
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Old 11-28-2009, 12:11 PM   #25
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Quote:
Originally Posted by berdugo View Post
hey Ryan, this is an excellent thread you started buddy, very informative

please add the RCM team Ice crank on the list, it has very interesting specs and difference with other cranks

http://www.rogerclarkmotorsport.co.u...?productID=659

that's the Arrow crank.

Also if you go to the Arrow site, the RCM Gobstopper is on the front page.
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