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LET'S BUILD A MOTOR!!
https://www.slantsix.org/forum/viewtopic.php?t=68236		 Page 2 of 2
Author:  GTS225 [ Sat Jun 07, 2025 7:02 am ]
Post subject:  Re: LET'S BUILD A MOTOR!!
Well, I heard back from their rep up in Minnesota. Suffice it to say I felt a bit of sticker shock.

(Cut-and-paste from his email)
Quote:
It sounds like the best thing for you is our JM02 Deluxe Intro Kit - Packed in a multi-purpose toolbox for $663.00
1x2 kg Belzona 1111 Super Metal
2x1 pint Belzona 9111 Cleaner/Degreaser
1x100gm Belzona 9411 Release Agent
1x16 ft Belzona 9341 Reinforcement Tape
Accessories: 1 Mixing Board, 1 Spatula, and 1 Applicator
Instructions for Use
It might be a really good product, but $663 bucks good? And there's no way I need 4.4 U.S. pounds of it for this little crack, OR 16 ft. of the reinforcement tape.

Roger.....maybe a bit too much of a tightwad.
Author:  SlantSixDan [ Sat Jun 07, 2025 10:03 am ]
Post subject:  Re: LET'S BUILD A MOTOR!!
Write back and say that's wayyyyyy more than you need. See if they've got somethin' smaller, like dudeguy got in the linked thread.
Author:  Dart270 [ Sat Jun 07, 2025 12:34 pm ]
Post subject:  Re: LET'S BUILD A MOTOR!!
You might even ask for a sample/test kit and that would be enough.

Lou
Author:  GTS225 [ Sat Jun 07, 2025 9:22 pm ]
Post subject:  Re: LET'S BUILD A MOTOR!!
Soooo. You're saying the guy is just trying to up-sell me, thinking I'm a dolt.
Ok....return email getting mentally planned. Yes, I'll be civil.

Roger
Author:  Dart270 [ Sun Jun 08, 2025 11:00 am ]
Post subject:  Re: LET'S BUILD A MOTOR!!
This sounds like an industry or shop-level supplier, and not really intended for DIY'ers. Probably just their standard offering. I would not be offended or insulted.

Lou
Author:  GTS225 [ Mon Jun 09, 2025 6:32 pm ]
Post subject:  Re: LET'S BUILD A MOTOR!!
Second contact with the Belzona supplier. They do offer a smaller package......1 KG of their formula 1111, for $349,plus the 16' of reinforcing tape. Apparently, they don't have much interest in dealing with a small-timer like a hobbyist. I'm not going to pursue Belzona any further....just do the best I can with JB Weld and hope for the best.

Now.....to address the request by Lou for the spec cards for my two cams.
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This is what's included with the cam(s). I take it you might have a recommendation between the two?

Roger
Author:  Dart270 [ Tue Jun 10, 2025 3:43 am ]
Post subject:  Re: LET'S BUILD A MOTOR!!
Thanks, Roger.

I would use the 270/270 cam. 270/280 is backwards for a 225. You want more duration on the intake than the exhaust, so that one will most probably run worse than the 270/270 or at least won't do you any good. I'm not saying you can't use the 270/280, but it is not using the valve timing curves efficiently for a 225 (large ratio of exh to intake flow, long stroke and small bore).

I would degree the cam at 100-102 deg intake centerline and I would target 9.0:1 static CR. You might go 9.5:1, but you'll be more on the edge for a street car and pump gas and will have to be more careful with ign timing. 220 @ 0.050" is not a big cam - a decent but not large step up from stock.

I have the Erson 280/270 "reverse" version in my Project V engine with 9.6:1 and it runs great for what's in that motor.

Happy building!
Lou
Author:  GTS225 [ Tue Jun 10, 2025 5:31 am ]
Post subject:  Re: LET'S BUILD A MOTOR!!
Hmmmm. Interesting....those cams were bought wayyyy back when we were still using the "old" board software, and have been waiting for me. I'm pretty sure that was a grind that Doc suggested for use. I wonder if maybe the card is printed out incorrectly, and the events are actually the other way around.

Either way, many thanks for the recommendation.

Roger
Author:  Dart270 [ Tue Jun 10, 2025 7:02 am ]
Post subject:  Re: LET'S BUILD A MOTOR!!
Doc and I and others have recommended more duration on INT than EXH for at least a couple of decades. They may be reversed. You might be able to tell by measuring with a caliper or you can put it into a block and run the duration and lift numbers with a dial indicator. Or maybe there are markings? I bought my 280/270 through Menko Johnson's group buy maybe 15-20 yrs ago and just put it into a motor 3 yrs ago. If you have a real 280/270 (I/E), then I would use that with 9.0-9.6:1 comp.

Lou
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