inliner04
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Registered: 23rd Mar 09
Location: Orpington, Greater London
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I may sound stupid in this so i appologise, but im seriously considering a Seat Leon with the VAG 1.9tdi 130 engine. I have never had anything to do with diesels before and dont know the simmilarities between petrol and diesel tuning. I know that a re-map is the obvious way to more power, and obviously an exhaust but i was wondering about other things...
Can you put a dump valve on a turbo diesel?
Could you put an intercooler/uprated intercooler on to get more power?
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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cant put an actual dump valve on a diesel, you can fit the intercooler though, there is a Fabia VRS with the same engine on here with well over 200 bhp
exhaust, intercooler and a map will give you a huge gain, bigger turbo and injectors will give you much more
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John
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Registered: 30th Jun 03
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Remap is the easiest way, 170bhp, loads of torque and can be had off ebay for £100, brilliant engines imo.
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broster
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Registered: 6th Dec 02
Location: Drives: E39
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first thing you should do is a remap, transforms the car. loads of different maps about now so look into whos getting good results.
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mattfiesta
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Registered: 14th Jul 05
Location: Nottinghamshire
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quote:
Originally posted by mattk
cant put an actual dump valve on a diesel
I've seen quite a few diesels with what appear to be dump valves
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kev
Organiser: North East
Premium Member
Registered: 16th Jun 09
Location: Newcastle
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i have a dump valve on my Golf gt tdi, its the forge kit.
sounds cool  (a bit chavy some times not to every ones tastes!)
as for a remap i would try and get a rolling road remap? then you have the figures to prove the bhp increase 
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John
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Registered: 30th Jun 03
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Anybody with a dump valve on their diesel knows nothing about cars and doesn't ming looking a twat.
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johnhara1
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Registered: 19th Oct 06
Location: Newcastle upon Tyne
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quote:
Originally posted by John
Remap is the easiest way, 170bhp, loads of torque and can be had off ebay for £100, brilliant engines imo.
These the ones where you post your ECU to them and they send it back mapped?
My mate wants this done on his PD130 Golf TDi.
Will he see 170bhp from this map? Who did you go with mate?
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John
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Registered: 30th Jun 03
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I've had them from 2 people on ebay, both were the cheapest at the time.
Think the first one I had done was by ecuevolution on my fabia.
Was RR'd later on by somebody else and the operators were commenting on how good a map it was.
Tihs was after me being told by certain people on here how they weren't as good as taking it to a more 'well known' place and paying 5 times the price.
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djgritt
Premium Member
Registered: 1st Nov 07
Location: Dorset Drives: Focus ST / Hyundai i20N
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Dump Valve on a Diesel = Small Penis
There really is no point and it does feck all to help them. Just makes people think 'Oh look, his tractor is hissing'... 
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Ren
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Registered: 16th Oct 04
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You've got to have a small penis to also think that diesels are still just tractors tbh 
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djgritt
Premium Member
Registered: 1st Nov 07
Location: Dorset Drives: Focus ST / Hyundai i20N
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quote:
Originally posted by Ren
You've got to have a small penis to also think that diesels are still just tractors tbh
I OWN a Diesel... a modern diesel, and an old Diesel, SO my opinion is founded 
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Ren
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Registered: 16th Oct 04
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I wasn't aiming that at you
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djgritt
Premium Member
Registered: 1st Nov 07
Location: Dorset Drives: Focus ST / Hyundai i20N
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quote:
Originally posted by Ren
I wasn't aiming that at you
Thats alright then, I thought it was seeing as I'm the only one to mention tractors.
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kev
Organiser: North East
Premium Member
Registered: 16th Jun 09
Location: Newcastle
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quote:
Originally posted by djgritt
Dump Valve on a Diesel = Small Penis
There really is no point and it does feck all to help them. Just makes people think 'Oh look, his tractor is hissing'...
i dont get any "oh look a tractor" at all about my diesel bov!
my diesel is a 53 plate! so doesnt sound like a tractor (yet!)haha
i would listen to them mate u asked a question? egnor the crap replys!!
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Anty
Premium Member
Registered: 19th Mar 08
Location: droitwich
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i know someone with an electric dump valve  on his 306 td
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djgritt
Premium Member
Registered: 1st Nov 07
Location: Dorset Drives: Focus ST / Hyundai i20N
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quote:
Originally posted by kevcr
i dont get any "oh look a tractor" at all about my diesel bov!
my diesel is a 53 plate! so doesnt sound like a tractor (yet!)haha
i would listen to them mate u asked a question? egnor the crap replys!!
Yours bloody well should sound Tractor-ish, its a VW TDi PD like my '07 Octavia vRS... Mine does, its nowhere near as quiet as a CR Setup!
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antnee
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Registered: 30th Dec 07
Location: Cov Drives: Clio 197
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Dump valves don't do anything for diesels
From TDi Club
quote:
ince people insist upon asking about these devices, they need to be discussed ... The purpose of a "blow-off valve" or "diverter valve" on a gasoline engine is to give boost pressure someplace to go when the throttle plate is abruptly closed, to prevent operating the compressor in the "surge" regime. Since a diesel engine doesn't have a throttle plate, a gadget like this serves absolutely no purpose and has no business anywhere on a diesel engine. "But I like the cool noise ..." Too bad, this discussion is focused on things that WORK. Even if you manage to find some way to make such a device work, the noise of people "in the know" laughing at you because they realize that it has absolutely no place on your engine will drown out the noise that the device itself makes.
Installation: Impossible. Cannot be made to work even if you insist upon it.
Advantages: None.
Disadvantages: Won't work. People who actually know how a diesel engine works will laugh at you for even considering it. You are your own warranty.
Cost factor: Too much, all things considered.
Cautions specific to this modification: Won't accomplish anything.
Suggested modifications in parallel: Irrelevant.
"Bang for the Buck": One hundred percent total waste of time and money.
What if I want more? Do something that actually accomplishes something ...
With a PD130, the turbo is good for about 195bhp tops, 195 can be seen from a FMIC, exhaust, filter and custom mapped. A hybrid pd150 turbo and mapped again will see about 225hp region with around 370lb/ft of torque which is about max for standard injectors
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