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View Full Version : Duratec 2.3 cosworth crank


Elv15
January 20th, 2010, 08:22 PM
Current bid $300. Retail $3k. Could be a great deal for someone. On fleabay:

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=180457312353&ssPageName=ADME:B:SS:MOTORS:1123
JohnCh
January 20th, 2010, 08:45 PM
Considering you have a 2.3L sitting in your garage, what are you waiting for?!

-John
Elv15
January 20th, 2010, 10:44 PM
Oh, I'm tempted for sure! ;) It's a prototype...I wonder how it is different from their production versions?
JohnCh
January 21st, 2010, 06:48 AM
It's probably worth a call to find out. I checked their catalog and it lists their 2.3L crank as 2.9kg lighter than the Ranger unit, which is almost a 20% reduction. Interestingly their 2.0L crank is only marginally lighter than stock (13.3kg vs 13.5kg).

-John
magnusfeuer
January 21st, 2010, 08:04 AM
This crank allows you to go from 7500 to 8500 rpm, if you have the cosworth head, rods and pistons.

I'm tempted, but the prototype status is a bit scary.

/Magnus F.
Elv15
January 21st, 2010, 04:00 PM
I sent them an email asking for more information on the prototype status.
Elv15
January 22nd, 2010, 12:41 PM
Got a reply...it's got different counterweights, but otherwise mostly the same.

Magnus, are you required to use a Cosworth head? If not, I'm going to bid... :D
magnusfeuer
January 22nd, 2010, 03:47 PM
Well.

According to Ken@Cosworth, the crank allows for higher rpm. I don't think the stock head can handle much more than 7500 or so RPM (springs etc?), so it would be a waste apart from quicker blip response times due to the lower mass. For what it's worth, I run a Exedy flywheel/clutch pack that is heavier(!) than stock, and have no problems with blips. One day I'll go aluminum flywheel and forged crank, but that is after the roll cage is in

/Magnus F.
Elv15
January 22nd, 2010, 11:29 PM
It's hard to imagine something heavier than the stock flywheel!

Magnus, you should bid on this...I'm going to pass. I need to save my pennies for the se7ens tour this summer.
Sean
January 23rd, 2010, 10:48 AM
Half-hour to go. I am not bidding, so the price won't be driven up by me.
magnusfeuer
January 23rd, 2010, 10:53 AM
Bid placed.

/Magnus F.
magnusfeuer
January 23rd, 2010, 11:17 AM
I placed my last bid 1 second too late and lost at $530.

Oh well.

/Magnus F.
Elv15
January 23rd, 2010, 12:36 PM
Magnus, I'm glad to see you put in for it...sorry that you didn't get it.