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 baghall
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Ben Hal Outlaw Bushranger
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| posted on October 11th, 2014 at 09:58 PM |
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Thoughts on performance upgrades?
Thinking of purchasing a Haltech ECU and diesel turbo for the 1.9 in my T3. Interested in people's thoughts.
68 Baja - It's a growing pain!
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85 T3 Kombi - still growing
89 T3 Kombi - parts car
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psimitar
Son of Jim - Creator of Good
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| posted on October 11th, 2014 at 11:27 PM |
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your 1.9 is a diesel? If not then the turbo will quickly overheat as they are constructed differently to a petrol engine turbo.
Going for an ECU is a good idea so long as for a minimum you use a crank trigger and MAP sensor. This will at least make full use of a mappable
ignition curve for engine load relative to engine speed. Going fuel injection will of course give you the best power as well as MPG.
A well thought out system could pay for itself within 4-5 years too 
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modnrod
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| posted on October 12th, 2014 at 11:22 AM |
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I can't offer much of an opinion on which ECU to use, because I don't have any experience there, I have always just used piggybacks on a factory
system.
Turbos however, the hardest thing is to try and match the boost level with the performance curve and the engine capacity. A 1.9 petrol engine that
makes peak torque near 3000 stock and peak power at 4500 will likely use one of the modern diesel turbos very well, but they use a lot of boost
generally, so you may have to tame it down a bit.
This website is just the best thing in the world for this type of matching. It has heaps of compressor maps, and you can change engine characteristics
for the real world and get a repeatable output.
http://www.squirrelpf.com/turbocalc/
I used a 1.9L motor, with target HP pk of 175 @ 5000, TQ pk @ 3500, redline @ 5500, BSFC of 0.5, and pressure reference of 14.0:1. I didn't use an
intercooler, so no losses (that's a personal thing, I would use a 2-stage spray instead).
When I plugged in the turbo map from a K03-2072, which is very very close to the K-series turbos used on both the 1.6L Citroen HDi I used to have and
also the 1.9L TDi VW, the map suited it beautifully.
Have fun. 
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modnrod
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| posted on October 12th, 2014 at 11:28 AM |
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PS: OH, and I rekn these people might have what you want for a decent price.
http://stores.ebay.com.au/High-Performance-Turbos/VW-Audi-Turbos-/_i.html?_fs...
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baghall
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Ben Hal Outlaw Bushranger
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| posted on October 12th, 2014 at 11:34 AM |
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Thanks modnrod and psimitar
68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car
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psimitar
Son of Jim - Creator of Good
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| posted on October 12th, 2014 at 08:27 PM |
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Oh and as I'm not sure if you're using mechanical or electronic injection then be warned that tuning a mech diesel injector pump is a pretty
specialised affair.
Elec injection is far easier and cheaper to tune.
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baghall
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Ben Hal Outlaw Bushranger
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| posted on October 12th, 2014 at 10:01 PM |
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Psimitar I am running a petrol with efi
68 Baja - It's a growing pain!
58 Baja ute - and the pain spreads!
85 T3 Kombi - still growing
89 T3 Kombi - parts car
|
|
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psimitar
Son of Jim - Creator of Good
Posts: 2506
Threads: 148
Registered: January 1st, 2009
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Location: North East Melbourne, VIC
Theme: UltimaBB Psyche Blue
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| posted on October 12th, 2014 at 10:40 PM |
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Cool Well then as ModnRod has said you'll be looking at something
similar to an Audi/VW 1.6 TSI KK03 turbo but would need to look thru the different turbos compressor charts to see where the sweet spot lies as at an
educated guess the 1.6 will be a better fit for your 1.9 due to the lower RPM available compared to the RPM available to a 1.9 TSI.
You may even have to go 1.4TSI to compensate for the flat 4s compression ratio.
Either way it's a fun subject to get your noodle in a twist 
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