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Location:
Malta
Registered:
December 2004
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Top End Power
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Sat, 19 February 2005 13:11
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I just wanted to ask: how can top end power be increased on a 1453cc Turbocharged Diesel Engine!!
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Location:
Brisbane, QLD, Australia
Registered:
May 2002
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Re: Top End Power
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Sat, 19 February 2005 13:35
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Put in an unleaded petrol engine.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Top End Power
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Sat, 19 February 2005 13:43
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that was.. helpful.... 
most people here would have no idea, but you shoudl PM "wagonist" as he has (i think) a diesel caldina?? something like that
for any engine, it's all abotu airflow.. better flow = more top end, but you have to match with fuelling... not as bad with diesel as petrol...
Cya, Stewart
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Location:
Malta
Registered:
December 2004
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Re: Top End Power
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Sat, 19 February 2005 21:58
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Yeah Apollo a long time ago I was thinking of putting a 4EFTE into it....but then I realised it would cost me an eye!! 
So I thought maybe till now I could get some real power from my 1N-T engine until I have enough money to do the conversion! maybe!
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Location:
Melbourne
Registered:
December 2004
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Re: Top End Power
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Sun, 20 February 2005 15:25
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i have heard of heaps of guys with turbo diesel 4wds getting more power out of there diesel engines.
you can still up the boost, run intercooling, exhaust etc.
you will get more torque too but also top end
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Location:
Melbourne
Registered:
June 2004
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Re: Top End Power
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Sun, 20 February 2005 22:58
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I didn't think diesel engines were compatible with revs!
I suspect the diesel fuel just can't burn quick enough to make power past around 4,500rpm without some super-trick ultra high pressure injection - ala' common rail direct injection diesel engines. Pretty sure you've gotta get the diesel atomised nearly to the point of vapourisation to get a quick & clean burn, which is more or less impossible with old-skool diesels.
If you're happy sticking with your current rev-range, it's basically the same principles as with a turbo petrol engine, like Black MR2 said. More boost, more efficient intercooling, and HEAPS more diesel into the mix. Diesels don't suffer the same mixture sensitivity problems as petrol engines - just throw more juice at it until it blows black soot, and back it off a touch. No need to worry much about lean-out either - they just make less power when run lean. The same rules apply to exhaust flow too - let that turbo spin freely by reducing the exhaust constrictions.
Happy oil burning! 
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Location:
Melbourne
Registered:
January 2003
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Re: Top End Power
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Sun, 20 February 2005 23:17
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This has been tackled in the truck world a little differently .
Next year will see some newer model trucks on the road which use a clever way of getting around the registration which is costed on the horse power rating of the truck . You buy a say 400hp model of truck then by a accessory kit that fits to you diesel engine a LPG system , when you add to the load of the engine at a set load / speed / rpm normal 3d mapping equation the LPG is injected into turbocharger at a rate which replaces the air / diesel rating . And instantly you have a 600hp truck under your right foot returning to a 400hp once you life off , so you get around paying more rego . You will soon see which manufacture has worked out this set up because they will easily outsell the other manufactures due to the cost of the truck vs hp . And this technology is in big demand for purchase by the Americans so there will be lots of jobs for Australians producing this for the overseas market .
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Location:
Melbourne
Registered:
June 2004
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Re: Top End Power
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Tue, 22 February 2005 01:59
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I thought that diesels pinged their heads off (literally) if you even give them a SNIFF of something which actually wants to burn? They run around 25:1 compression to ignite the oil (sorry, diesel), which pre-ignites anything remotely flammable.
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Location:
Canberra
Registered:
August 2003
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Re: Top End Power
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Tue, 22 February 2005 02:20
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One of the advantages of diesel is the flexibility in the fuel/air mix, the ratio can change from almost fully lean to fully rich and it should still keep going. Hence turbos and superchargers are pretty effective on diesels.
improvedae86 - I believe that would be LNG not LPG wouldn't it? LPG and diesel aren't compatible are they?
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Location:
Melbourne
Registered:
December 2004
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Re: Top End Power
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Tue, 22 February 2005 02:40
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you can get vegetable oil conversion kits for diesels. you start her up on diesel and then go to vege oil once all systems are warmed and ready to go.
burns fine and a sh*tload cleaner than diesel. in bulk it's really cheap too
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Location:
Campbelltown
Registered:
November 2003
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Re: Top End Power
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Tue, 22 February 2005 03:12
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it's also illegal
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Location:
Newcastle
Registered:
June 2002
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Re: Top End Power
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Tue, 22 February 2005 18:59
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and the the vege oil increases top end by ?????
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