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Author Topic: d15 vs d16 bottom end strength  (Read 4811 times)

DasPoop

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d15 vs d16 bottom end strength
« on: March 01, 2014, 10:34:24 PM »
I know as far as stock bottom ends go I always build d15s all motor and d16s for boost. But I have a lead on a set of billet rods for a d15 and other than the slightly smaller crank can you see any reason the d15 wouldn't take the snot getting beat out of it? I would think the smaller journals would help with oiling. But would the shorter rod mean a stronger rod? I know the sleeves will take more of a pounding on the thrust side but is making 400hp out of a d15 on e85 sound un reasonable? I also dont want to have to rev the bitch to 8500 either. I dont want to rev it any harder than 7500 just to keep it together the whole season.
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jdmhatchracer94

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Re: d15 vs d16 bottom end strength
« Reply #1 on: March 02, 2014, 12:36:26 AM »
the ones russ has? I always wanted to build one but didn't want to pay for the rods.
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DasPoop

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Re: d15 vs d16 bottom end strength
« Reply #2 on: March 02, 2014, 01:17:57 AM »
Quote from: jdmhatchracer94 on March 02, 2014, 12:36:26 AM
the ones russ has? I always wanted to build one but didn't want to pay for the rods.

ugh no... :?: :noel:
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Minor Threat

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Re: d15 vs d16 bottom end strength
« Reply #3 on: March 02, 2014, 02:55:52 PM »
Isn't a D15B crank the same rod journal as a reg D16? Didn't Vitaras work in those with regular length D16 rods?
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danz

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Re: d15 vs d16 bottom end strength
« Reply #4 on: March 02, 2014, 03:40:37 PM »
I got a D15B2 bottom end in my ED, boosted of course, with some prototype vitara forged rods.

So far so good.  I ran about 16psi through a 50trim t3/t4 geunine garret turbo, ran 12.1.  It'll go faster before I pull it out and put my F22 in.
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10.510 @ 133.09 mph D16Z6 EJ6
10.912 @ 127.33 mph D16A6 ED6
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