Author Topic: Waiste gated (Read 7888 times)

dillenger1 · « **on:** December 07, 2007, 06:43:39 am »

Why does vw use wg's if they arent needed?I read a post in the tech section,about a wg setup,and it seemed he got shot down for the idea,but to my knowledge volkswagon uses wg's on older td's
thanks ben

jimfoo · « **Reply #1 on:** December 07, 2007, 07:26:04 am »

Because they are needed unless you like replacing turbos on a regular basis.

Slave2School · « **Reply #2 on:** December 07, 2007, 07:26:57 am »

Simple, the VNT turbos didn't exist (well or weren't cheap enough/proven) when VW made the older engines. Therefore not used on the old TD's.

dillenger1 · « **Reply #3 on:** December 07, 2007, 07:32:57 am »

Im sorry guys,your probably gonna hate me ,but I meant blow off valve not waisted gate.I just got a little excited.

jimfoo · « **Reply #4 on:** December 07, 2007, 07:37:47 am »

Um, if you are getting excited about your blow off valve, I don't want to know about it.

:lol:

spencebm · « **Reply #5 on:** December 07, 2007, 09:27:35 am »

i thought they put BOV's as back ups for the waste gate in case you make too much boost

jimfoo · « **Reply #6 on:** December 07, 2007, 10:11:31 am »

Too much boost, what's that? :lol: :twisted:

dillenger1 · « **Reply #7 on:** December 07, 2007, 11:24:51 am »

i dont know i love the sound of a bov ,but i dont want to run one unless its got function.Please someone tell me theres a function/intended use

Slave2School · « **Reply #8 on:** December 07, 2007, 11:47:08 am »

Absolutely no use on 99.99% of all diesels since there is usually no throttle plate. I did read on here someone used it with a VERY large turbo so that it wouldn't make the compressor surge (something along those lines) upon sudden deceleration.

dillenger1 · « **Reply #9 on:** December 09, 2007, 12:23:52 pm »

that wasnt enough

Slave2School · « **Reply #10 on:** December 09, 2007, 12:43:20 pm »

What wasn't enough? Need more opinions, hit google

jtanguay · « **Reply #11 on:** December 09, 2007, 10:04:10 pm »

vw added the BOV to the 1.6's only. even 1.9's have wastegated turbo's but no BOV.

it is just some type of 'safety' device in case the wastegate fails. and funny enough, i actually think that extra boost might be a good idea if the wastegate fails to help cool down those EGT's... but then again it would help lower the chance of runaway and reduce fueling since the LDA wouldn't be getting shoved down its little hole. :lol:

OM617 · « **Reply #12 on:** December 10, 2007, 01:40:03 am »

It is not a blow off valve. It is a pop off relief valve to prevent engine damage from too much boost pressure in the event that the wastegate fails.

dillenger1 · « **Reply #13 on:** December 12, 2007, 04:13:58 pm »

In my manual its listed as a bov.

Slave2School · « **Reply #14 on:** December 12, 2007, 04:15:54 pm »

Well that manual is 20 years old

The terminology has changed a bit.

Author Topic: Waiste gated (Read 7888 times)

OM617