Croc Posted March 18, 2011 Share Posted March 18, 2011 Damn that engine looks good! I am so looking forward to getting my size 12s on to the throttle of one of those! Link to comment Share on other sites More sharing options...
blubarisax Posted March 18, 2011 Author Share Posted March 18, 2011 How many "break-in" miles recommended? My M3 V8 was 3K. I thot I wld never get to open it up! That was 35K miles ago tho so a distant memory. I'll have to ask Cosworth, Ben suggested taking it easy on the RPMs and varying the RPMs for the first 500 miles, then doing an oil change. Any other thoughts? 3,000 miles would seem like a lifetime to me... Link to comment Share on other sites More sharing options...
yellowss7 Posted March 18, 2011 Share Posted March 18, 2011 Karl, did Cosworth dyno your engine? If they did then it's already run in. If not, you'll want to see if there is a recommended proceedure for running in the cams. Check on Blatchat for their take. As far as running in, there are two schools of thought, the keep it under 4k rpm for 500 miles school and the Rev the NUTs off it school. (once the oil is up to temp of course) The argument is that keeping the rpms lower initially, causes more oil consumption in the long run. Again check on Blat Chat for the fully discussion. Tom Link to comment Share on other sites More sharing options...
Croc Posted March 18, 2011 Share Posted March 18, 2011 Here is the Blatchat discussion: http://www.blatchat.com/t.asp?id=199395 Having read the Motoman link within the Blatchat discussion, I think I am a fan of the "rev the tits off the mother" approach to running in a new engine. Also given my first shakedown drive will be a weekend in Denver prowling with the Denver Seven enthusiasts, I dont think pussyfooting is allowed... A nice early oil change should clean up all the swarf that comes off in the first few hundred miles. Link to comment Share on other sites More sharing options...
Kitcat Posted March 18, 2011 Share Posted March 18, 2011 Interesting discussion on Blatchat. Esp since it all is based on the infamous smiling "motoman" internet post years ago (the guy w/the dirty T-shirt who recommended a hard break-in for motorcycle engines). Many of the blatchat posters report success w/hard break-in, so perhaps the t-shirt guy was on to something. On the other hand.... Link to comment Share on other sites More sharing options...
blubarisax Posted March 18, 2011 Author Share Posted March 18, 2011 Karl, did Cosworth dyno your engine? If they did then it's already run in. If not, you'll want to see if there is a recommended proceedure for running in the cams. Check on Blatchat for their take. As far as running in, there are two schools of thought, the keep it under 4k rpm for 500 miles school and the Rev the NUTs off it school. (once the oil is up to temp of course) The argument is that keeping the rpms lower initially, causes more oil consumption in the long run. Again check on Blat Chat for the fully discussion. Tom Unfortunately no dyno by Cosworth. The cost estimate was over $2,500; but money aside, the dyno was not available till late April and I just could not wait. They set the map for the gas I plan on using, Sunoco 260 GT (100 AKI/105 RON) and the weight of the car. I hope it all works. Link to comment Share on other sites More sharing options...
blubarisax Posted March 18, 2011 Author Share Posted March 18, 2011 Here is the Blatchat discussion: http://www.blatchat.com/t.asp?id=199395 Having read the Motoman link within the Blatchat discussion, I think I am a fan of the "rev the tits off the mother" approach to running in a new engine. Also given my first shakedown drive will be a weekend in Denver prowling with the Denver Seven enthusiasts, I dont think pussyfooting is allowed... A nice early oil change should clean up all the swarf that comes off in the first few hundred miles. This sounds like an excellent plan. If it blows up while I "rev the tits off the mother" so be it. The worst that happens is I'll swap out my motor with Mike's while he is not looking. :cooldude: Link to comment Share on other sites More sharing options...
blubarisax Posted March 19, 2011 Author Share Posted March 19, 2011 Here is an link to an article on the logic behind an aggressive run-in. http://www.mototuneusa.com/break_in_secrets.htm Link to comment Share on other sites More sharing options...
blubarisax Posted March 23, 2011 Author Share Posted March 23, 2011 The Cosworth arrived in NJ today. Now to get it into the car! http://i913.photobucket.com/albums/ac336/blubarisax/Cosworth%20Duratec%20Build/IMG00036-20110323-1522.jpg Link to comment Share on other sites More sharing options...
yellowss7 Posted March 23, 2011 Share Posted March 23, 2011 Now that's a present that's going to be fun unwrapping! :hurray: Hope the install goes smoothly. Tom Link to comment Share on other sites More sharing options...
blubarisax Posted March 24, 2011 Author Share Posted March 24, 2011 Completely off topic but this link will be irrestible honey to Karl to open his checkbook again :jester: I have a cam cover on order from Reverie but it is yet to arrive. I had no idea that Tom (Alaskossie) used it on his car. http://www.reverie.ltd.uk/home.php Mike, Did you order the cover with the 19mm oil breather fitting? I know I need the cam angle sensor and am opting for the oil filler. (unfortunately the aluminum cam cover weighs a ton.) Thanks, Karl Link to comment Share on other sites More sharing options...
Croc Posted March 24, 2011 Share Posted March 24, 2011 Mike, Did you order the cover with the 19mm oil breather fitting? I know I need the cam angle sensor and am opting for the oil filler. (unfortunately the aluminum cam cover weighs a ton.) Thanks, Karl Damn...I see you worked out your retro cam cover weighed a ton like I was hoping. Thats one small advantage I just lost! :toetap05: Seriously for a moment, I cannot recall the exact spec. There was an oil breather - no idea on size though. I am travelling this week and next with the paperwork I need to check. Also until we get side by side to check each others out, I am thinking there possibly may be a difference in the configurations that I have compared with yours just because we sourced them at different times and from different channels (Cosworth UK vs USA). Link to comment Share on other sites More sharing options...
blubarisax Posted March 24, 2011 Author Share Posted March 24, 2011 Mike, I suspect they will be very close to the same. From what I could gather from Cosworth USA and Cosworth UK all the parts should be the same. I did put in 13:1 compression ration pistons and the billet crank. (I needed a few extra HP to haul my extra weight about.) I stuck with the Titian dry sump tank and Modine oil cooler, and I think yours will have a Caterham specific tank that uses the bellhousing somehow... Link to comment Share on other sites More sharing options...
Sean Posted March 24, 2011 Share Posted March 24, 2011 ISTR that Cosworth in the UK use two (2) roller barrel throttle body doohickeys, each feeding two (2) cylinders, whereas Cosworth Racing in the USA use the one (1) long roller barrel throttle body doohickey that feeds all four (4) cylinders, as Karl has on his engine. Cosworth UK may or may not have changed to the single unit, I don't know, but it appears Cosworth Racing is still using it. That is the only difference of which I am aware. Link to comment Share on other sites More sharing options...
blubarisax Posted March 24, 2011 Author Share Posted March 24, 2011 The promotional materials from Cosworth UK show the single long roller barrel assembly for their UK built motors. I think Caterham puts the same two part roller barrel units on the CSR motors that they use for the R400/R500 motors, but I'm not 100% sure. I think the two part units are made by Titan for Caterham. http://www.caterhamparts.co.uk/product.php?id_product=3768 http://www.titanraceproducts.com/weberrollerbarrels.asp Link to comment Share on other sites More sharing options...
blubarisax Posted March 26, 2011 Author Share Posted March 26, 2011 OK, it looks like my plan is starting to come together. http://i913.photobucket.com/albums/ac336/blubarisax/IMG00049-20110326-0902.jpg http://i913.photobucket.com/albums/ac336/blubarisax/IMG00048-20110326-0902.jpg http://i913.photobucket.com/albums/ac336/blubarisax/IMG00047-20110326-0902.jpg http://i913.photobucket.com/albums/ac336/blubarisax/IMG00046-20110326-0902.jpg Link to comment Share on other sites More sharing options...
a.moore Posted March 26, 2011 Share Posted March 26, 2011 That set up looks sweet. I like it. Which alternator and tensioner are you using? Link to comment Share on other sites More sharing options...
blubarisax Posted March 26, 2011 Author Share Posted March 26, 2011 (edited) Andrew, I'm not 100% sure, it came from Cosworth. I think it is this one: http://i913.photobucket.com/albums/ac336/blubarisax/kk3739-duratec-alternator-k_1419_general.jpg Edited March 26, 2011 by blubarisax Link to comment Share on other sites More sharing options...
JohnCh Posted March 26, 2011 Share Posted March 26, 2011 I didn't realize you fit the alternator there on a LHD Caterham. On a Westfield, it would block the steering column -- I found that out the hard way -John Link to comment Share on other sites More sharing options...
Sean Posted March 27, 2011 Share Posted March 27, 2011 On a S3, the steering rack has to be rotated into j-u-s-t the right orientation for it to work. But it works. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now