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TDI Conversions Discussions on converting non TDIs into TDIS. More general items can be answered better in other sections. This is ideal for issues that don't have an overlap and are very special to swaping engines.

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Old October 19th, 2019, 14:31   #1
turbodan62
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Default vw rialito v-6

i was looking to buy a vw rialita motorhome and switch in a v-6 tdi engine for bettor mileage , any ideas ?? Thanks again Tdan
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Old October 19th, 2019, 20:36   #2
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It's highly unlikely that you can fit a V6 in that space, as the engines are canted forward significantly. I plan on buying a 2.5L TDI five cylinder inline from Europe, since they will bolt right in and produce plenty of power when tweaked. Here's an example:

https://www.youtube.com/watch?v=GQ6XH9bMCZ0&t=695s
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Old October 20th, 2019, 20:26   #3
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the rialta 's on late models came with an 201 hp v-6 , so i can not see why the tdi would not fit . the only thing is the das auto trans & the tdi auto the same transaxle Tdan
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Old October 20th, 2019, 21:30   #4
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The late models came with a VR6, which is narrow angle, not all that different from an inline engine. These engines had all their peripherals built to install in the transverse position. The Audi V6 is a wide angle, with no peripherals built to install transversely in a T4.

I currently own an Audi with a V6 and a late model T4 with a VR6.
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Old October 21st, 2019, 05:11   #5
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It's a neat idea but what about the emissions police? California is pretty heavily scrutinized.
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Old October 21st, 2019, 06:57   #6
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You cannot put a V6 in the T4. They never had those. They had a VR6, which is completely different.

The TDI they would have used would be an inline 5 cylinder, or a 4 cylinder.
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Old October 21st, 2019, 10:57   #7
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There were 2 engine codes of the 2.5L I-5 TDIs that were 151hp. They require a long nose to properly fit the FMIC. They had large VNT turbos and will readily be tuneable to 180-190hp with gobs of smooth linear torque. Coupled to the O2G 5 speed trans- it's the ideal powertrain for power, efficiency and longevity.

Again though, CA is under state emissions inspections. Not something to ignore IMHO.
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Old October 21st, 2019, 13:08   #8
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i will be moving to arz. next yea, so no need to worry about smog stuff in Commiefornia .. the 5 cylinder looks like a good fit
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Old October 22nd, 2019, 10:00   #9
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Default 5 cyl. tdi engine

what does a 5 cyl. tdi engine complete cost ? i here they had some issues with cyl were / oil starvation etc ... Thanks again Tdan
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Old October 22nd, 2019, 11:01   #10
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You can get a quote from Frans at info@dutchautoparts.com. Response time varies.
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Old October 22nd, 2019, 19:36   #11
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Quote:
Originally Posted by turbodan62 View Post
what does a 5 cyl. tdi engine complete cost ? i here they had some issues with cyl were / oil starvation etc ... Thanks again Tdan
I think you're thinking of the old 2.0L IDI diesels. They were prone to top end oiling issues. The 2.5s are great engines.
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