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S.P.M. connecting rods
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MJF
TBI Slant 6


Joined: 11 Jan 2004
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Location: Oulainen, Finland
Post subject: (Tue Jan 31, 2012 3:37 am) Reply with quote
How long are these? 7,2"? 7,5"?
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Ceej
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Joined: 31 Mar 2003
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Post subject: (Tue Jan 31, 2012 7:13 am) Reply with quote
7.5"

The amount of work was a bit more than Tony expected. They came out at $469 Shipped/Insured. Each.
I don't think he'd build them for that again. Rolling Eyes

CJ



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Dart270
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Post subject: (Tue Jan 31, 2012 8:40 am) Reply with quote
Aluminum or titanium? Alum I bet, but just checking...

Lou



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Shaker223
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Joined: 20 Sep 2006
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Post subject: (Tue Jan 31, 2012 8:44 am) Reply with quote
Ceej wrote:
7.5"

The amount of work was a bit more than Tony expected. They came out at $469 Shipped/Insured. Each.
I don't think he'd build them for that again. Rolling Eyes

CJ


Each = per rod?
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raPoM
Turbo Slant 6


Joined: 08 May 2009
Posts: 961
Location: Round Rock Tx
Post subject: (Tue Jan 31, 2012 8:48 am) Reply with quote
Ceej wrote:
7.5"

The amount of work was a bit more than Tony expected. They came out at $469 Shipped/Insured. Each.
I don't think he'd build them for that again. Rolling Eyes

CJ


Not bad for a custom set,now people cant say that all of us slant six guys are cheap Laughing
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SlantSixDan
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Joined: 31 Oct 2002
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Post subject: (Tue Jan 31, 2012 10:27 am) Reply with quote
Ceej wrote:
They came out at $469 Shipped/Insured. Each.


Shocked

(Wellnow. It appears my automatic choke is working.)



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Ceej
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Post subject: (Tue Jan 31, 2012 1:34 pm) Reply with quote
That would be Titanium. Each. Per rod.

CJ



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MJF
TBI Slant 6


Joined: 11 Jan 2004
Posts: 156
Location: Oulainen, Finland
Post subject: (Tue Jan 31, 2012 2:12 pm) Reply with quote
Thats crazy Very Happy Where are these going?
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Dart270
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Post subject: (Tue Jan 31, 2012 3:20 pm) Reply with quote
The other question: Why? $3k goes a long way... Not trying to be a snot, just askin'... Rolling Eyes Idea Question

Lou



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slantzilla
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Post subject: (Tue Jan 31, 2012 3:43 pm) Reply with quote
Dart270 wrote:
The other question: Why? $3k goes a long way... Not trying to be a snot, just askin'... Rolling Eyes Idea Question

Lou


I had that conversation with him before he bought them Lou. I didn't do any good. Laughing

My concern was the 7.5" length. That long of a rod will kill any torque this thing was thinking about making, but I think he's gonna put a blower on it, so that will help.

Ceej, will he do rods in steel? I kinda want a set of 6.7" steel rods.

K-1 refused, and from the crap they've sent out I'm lucky. Laughing



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SlantSixDan
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Post subject: (Tue Jan 31, 2012 3:51 pm) Reply with quote
slantzilla wrote:
My concern was the 7.5" length. That long of a rod will kill any torque this thing was thinking about making


How? I'm not trying to challenge you, I'm just curious on the operational theory you have in mind.

Quote:
K-1 refused, and from the crap they've sent out I'm lucky.


More info, plee-uz…have their been quality problems with the K-1 rods?



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slantzilla
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Post subject: (Tue Jan 31, 2012 4:03 pm) Reply with quote
Too long of a rod overleverages the motor and actually creates friction instead of diminishing it. (That's one of the supposed advantages of the longer rod builds)

Will it be an issue? Maybe, maybe not. Rod angularity is a topic that has just about as much room for argument as an aluminum head thread. Laughing Laughing Laughing Laughing


Many of the K-1 rod sets had machining issues. When asked about the origin of his rods Tom at K-1 assured everyone that even though the forgings were Chinese, all the machining was done in country to the highest standards. Some have had the bearing tang slot on the wrong side, others had too small of a slot. Shocked

Kinda sad, because K-1 does have a very good reputation with a lot of premier engine shops.



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MJF
TBI Slant 6


Joined: 11 Jan 2004
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Location: Oulainen, Finland
Post subject: (Tue Jan 31, 2012 4:12 pm) Reply with quote
It's not that long rod for 4.125" stroke. Stock 170 still has higher rod/stroke ratio, 198 even higher.
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SlantSixDan
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Post subject: (Tue Jan 31, 2012 4:50 pm) Reply with quote
slantzilla wrote:
Too long of a rod overleverages the motor and actually creates friction instead of diminishing it.


Yeah, I just haven't done the math to figure out if that would be a problem with this build. Maybe Ceej has. I guess it would also depend on whether the piston pins are offset, too, and by how much.

Quote:
Many of the K-1 rod sets had machining issues. When asked about the origin of his rods Tom at K-1 assured everyone that even though the forgings were Chinese, all the machining was done in country to the highest standards. Some have had the bearing tang slot on the wrong side, others had too small of a slot.


Yuck. Nothing to go neener-neener-neener about, though I do seem to recall raising my eyebrow to the upright-and-quality-from-China position back when the K-1 rods were first announced, and my concerns being dismissed as nothing but baseless racist bigotry.

Guess there musta been more to it than that. Sad



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slantzilla
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Post subject: (Tue Jan 31, 2012 6:28 pm) Reply with quote
Dan, the China part seems to be fine, it the US machining that seems to be the issue. Crying or Very sad



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