Cleaned up by request... Play nice people... Some of that was funny....
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You have to turn the blower such a great amount of quicker on the 416 to make the same support as on a 376. The high temperature you make by turning the blower so quick refutes any addition you might have made in the force. |
The data you collected is all accurate, how you inturpret it in the car is another.
There is a big crutch with this package for high Horsepower and it is the Belt drive system. A 10 rib drive is the best way to get you where you want to be but then you have to deal with the restrictions in the the blower manifold and intercooler. Most all of the testing data does not include the blower manifold with intercooler. It is obvious that the larger blowers will perform better and carry the power to the finish line. Making power for 4 seconds is different then making power for 9 seconds we see this all the time Take a lesson from GM they put a 4.0 blower on a 327 in the COPO and made 1200 HP. Going up on cubic inch is effectively the same as putting a smaller blower on your 376 and trying to make the same power. If you looking to do a 416 go to a whipple 4.0 or YSI and take advantage of it. There is a term I use often when talking about turning blowers faster, Diminishing Returns! The faster you spin the blower the More HP it takes to turn it and the More Heat it makes. Ted. |
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I know bigger and better choices are out there. But as I said in the beginning I was wanting to do a build that I could use the Maggie on and make some gains but in the long run be able to use a centri or 4. Whipple or turbo and then make some bigger power but not have issues as long as I wanted to keep the 2300. |
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You will not have any issues duplicating your current power or even improving on it slightly due to keeping the compression, and depending if you step up to a 10 rib drive. Just don't expect to make any large improvements in ET. If your ready I have a 416 ready to go ;) |
LOL not ready yet, I have some things I need to pay for before that....or the wife will get grouchy...LOL so it will be next summer or fall. I am really thinking of the 3.9 stroke and like a 400ish CI but that doesn't seem to be real plentiful in crank options.
I am running a 3.1 front pulley now with 1:1 rear and make 10.5-11 psi with your lope cam and made 680 at LaMotta's dyno and stock it was 370 same dyno. So I would think if I did OD rears with the same front I would be ok on my 8 rib set up on a larger engine without too much slip unless. I don't seem to have ALOT of slip now I do have some, but I have had the same belt for awhile now and its not worn or broken and I get very little belt dust on my engine cover by the pulley but there is some. |
About the belt slip. Is that not caused by the increased resistance of running higher boost? Not caused by the smaller pulley.
If so, then if bigger engines make less boost, you should be able to pulley down to the same boost levels without causing the slip that smaller engines have with the same pulley size. |
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I'm not slipping my belt with the LPE 10 rib kit. 2.95 pulley up front, OD cogs in back and 6% OD up front too. Making 16.5 psi on a very lopey blower cam (ground for centri) and ported heads on my 416. LPE can cure any belt slip you have, it'll just cost you an arm and a leg.
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The bottom of his time slip says SLOW!:laugh: |
Yeah it does, haven't made a full pass with the car yet. It ran a 16 through 2nd gear before I shut it down and coasted through the trap at 62mph. I'm ditching the Maggie now, pretty sad when your diesel can run 11s and your drag car can't yet.
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