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1.8T connecting rod failure.
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Topic: 1.8T connecting rod failure. (Read 20316 times)
vwaudiguy
Hero Member
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Re: 1.8T connecting rod failure.
« Reply #30 on: December 08, 2017, 10:17:17 AM »
Quote from: lphsail21 on December 08, 2017, 12:19:47 AM
After loading the car on the dyno and putting down 344awtq and 309awhp on the quattro/tiptronic
What dyno was this on? I can't see those numbers on 1.) AWD power 2.) tiptronic. 3.) That turbo
Maybe E85?
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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
Carsinc
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Re: 1.8T connecting rod failure.
« Reply #31 on: December 08, 2017, 03:50:52 PM »
f21? 1.8t? 380lbs crank atleast? i need your info you can just do all my tunes\
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slappynuts
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Re: 1.8T connecting rod failure.
« Reply #32 on: December 21, 2017, 03:17:44 PM »
These rods fail from rings butting and grabbing the wall, this adds just enough more pressure at high EGTs to fold the rods right up. The rings were gapped this way to meet emissions. The evoX 4b11 has the same issue, and ironically they have the same Mahle pistons and the same ring gap factor. If you keep EGTs down you can go much farther. If you do decide to do drop in rods, use the Mahle specs instead of the foolish VW/Audi ones. Page 21.....
http://www.mahle-aftermarket.com/media/local-media-north-america/pdfs-&-thumbnails/catalogs-and-literature/pistons-and-rings/pr-40-16.pdf
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slappynuts
Jr. Member
Karma: +0/-0
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Posts: 49
Re: 1.8T connecting rod failure.
« Reply #33 on: December 21, 2017, 03:18:17 PM »
These rods fail from rings butting and grabbing the wall, this adds just enough more pressure at high EGTs to fold the rods right up. The rings were gapped this way to meet emissions. The evoX 4b11 has the same issue, and ironically they have the same Mahle pistons and the same ring gap factor. If you keep EGTs down you can go much farther. If you do decide to do drop in rods, use the Mahle specs instead of the foolish VW/Audi ones. Page 21.....
http://www.mahle-aftermarket.com/media/local-media-north-america/pdfs-&-thumbnails/catalogs-and-literature/pistons-and-rings/pr-40-16.pdf
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