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Are these valves too big for the street?
https://slantsix.org/forum/viewtopic.php?t=38331		 Page 3 of 3
Author:  Kevin Johnson [ Sun Dec 27, 2009 6:04 am ]
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Great thread, Reed.
Author:  dakight [ Sun Dec 27, 2009 6:21 am ]
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OK, what's the point, Kevin?
Author:  Reed [ Sun Dec 27, 2009 9:25 am ]
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I am fully aware that this product is pure snake-oil.
Author:  Rug_Trucker [ Sun Dec 27, 2009 8:04 pm ]
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I am sure it would hurt flow. I had a friend that did the screens over intake ports on a SB Mopar. I forget his results........
Author:  Kevin Johnson [ Sun Dec 27, 2009 10:23 pm ]
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OK, what's the point, Kevin?
Sorry!
Author:  Reed [ Sun Dec 27, 2009 11:04 pm ]
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I just thought people might want to read the evaluation. I have read through dozens of them and it is a pretty interesting mix (to me at least).

I don't want to hijack the thread; I just thought since someone took the time to post multiple pics people might also want to read a contemporary review.
Edit: Just to show what you can find by reading through them: http://www.epa.gov/otaq/consumer/devices/pb83211243.pdf See note at bottom of page 10. For a 3% reduction in road load you gain about 1% in fuel economy for the tests used.
Done. See HERE
Author:  Kevin Johnson [ Mon Dec 28, 2009 12:18 am ]
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Done. See HERE
Great !
Author:  Reed [ Mon Dec 28, 2009 10:31 pm ]
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Well, due to time contraints, i am just going to throw this head onto the motor and run it with the bigger cam. I did some measuring, and I know that this head has not been milled and the ombustion chamber has not been relieved. As time permits, I will measure and have built a head with stock valves which will be more suited for a street driven van.

The motor will still be getting a "new" cam reground to one of the Erson profiles, so that should be a big step up. However, I measured and determined that the piston stop .18 down the piston bore and the cylinders were machined .030 oversize. THis means that lots of thickness will need to be removed from the head to get compression up where it should be. I can't wait for my syringe to arrive so I can start cc-ing some heads. :x
Author:  dakight [ Tue Dec 29, 2009 4:16 am ]
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You may have read my thread on CCing my cylinder head. I found a 100 ml plastic burette for about $20.00 plus shippping. For practical purposes, ml and CC are interchangeable. It gives fast, accurate results and allowed me to get my chamber size right where I wanted it. I can't believe I ever considered building an engine without it.
Author:  ceej [ Tue Dec 29, 2009 6:43 am ]
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Absolutely a must! I CC'd the head for Linda's Dart that came off the Hooptie. Before machine work it measured ~53cc's. After the Valve job it came out around 61cc. They either got seriously carried away, or things were in really bad shape. The head is going back in for new valves, and seats. I need to get the static back up.
Linda's engine is taking a lot longer than I expected! I'll take the head down tomorrow and start plans to get it straightened out.

CJ
Author:  Reed [ Tue Dec 29, 2009 7:13 am ]
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Yep, I found a catherter cyringe online that is 60cc capacity and is marked in 1cc increments. I ordered it last Monday and paid for rush shipping but it still hasn't arrived. Maybe today? :roll:
Author:  ceej [ Tue Dec 29, 2009 7:51 am ]
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If you still don't have it by the time you head down to Wildcat, I'll bring a 60cc one from my tool box for you. If they back order it, just cancel. I can pick these up at the Farm store near my place for something like a couple of bucks.

CJ
Author:  Rug_Trucker [ Tue Dec 29, 2009 7:59 am ]
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Do these valves make my butt look big? :lol:
Author:  Reed [ Tue Dec 29, 2009 8:45 am ]
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Hey, thanks Ceej! 8)
Author:  dakight [ Tue Dec 29, 2009 1:51 pm ]
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I got a 100 ml plastic burette for about $20.00. I like a burette better because it's easier to control.
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