APS SR40 Turbo,Whats the Verdict
17 April 2005, 05:48 PM
#32
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Price of the turbo, good point. Longevity of turbos is not really an issue these days with modern turbos (that I have across anyway 
)
Turbo shootout conditions.
Same car everytime,
Same fuel everytime (Optimax nothing added),
Same rolling road road everytime
Turbo supplier can have mapped tweaked or tweak it themselves in terms of fuel, ignition but boost level must be fixed @ say 1.5 bar for all turbos.
The winning turbo would be the best all round turbo, based on;
1. torque ( area under the curve D )
2. how early it spools and at what RPM full boost is achieved
3. peak horsepower within 5% of traget
4. price (Including VAT)
5. fitting ~ any hassle to fit, parts missing, new water pipes? Grinder needed?
Any more?
Conrad
)Turbo shootout conditions.
Same car everytime,
Same fuel everytime (Optimax nothing added),
Same rolling road road everytime
Turbo supplier can have mapped tweaked or tweak it themselves in terms of fuel, ignition but boost level must be fixed @ say 1.5 bar for all turbos.
The winning turbo would be the best all round turbo, based on;
1. torque ( area under the curve D )
2. how early it spools and at what RPM full boost is achieved
3. peak horsepower within 5% of traget
4. price (Including VAT)
5. fitting ~ any hassle to fit, parts missing, new water pipes? Grinder needed?
Any more?
Conrad
13 March 2013, 09:26 AM
#35
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HOLY THREAD RESURRECTION BATMAN
[QUOTE=Andy.F;4498754]Yes, sure would 
Although I think the "masses" you refer to already have a fair bit of info on these turbos
As long as your test is not just about peak figures but looks at the power available under the useable rpm range, after all this is what determines a fast from a not so fast car. The peak figure is really just 'pub talk'
I am currently undertaking a similar exercise, where I'm taking a 03WRX through a range of turbos, starting with the TD04 which with a slight mod is currently making 330 bhp with full boost from 2600rpm.... that makes it an uphill struggle for the TD05-16G which is next in line for testing, followed by the well proven 18g and 20g.
Andy[/QUOTE
AN OLD THREAD I know but was this exercise ever performed and were the findings publicised?
Although I think the "masses" you refer to already have a fair bit of info on these turbos As long as your test is not just about peak figures but looks at the power available under the useable rpm range, after all this is what determines a fast from a not so fast car. The peak figure is really just 'pub talk'
I am currently undertaking a similar exercise, where I'm taking a 03WRX through a range of turbos, starting with the TD04 which with a slight mod is currently making 330 bhp with full boost from 2600rpm.... that makes it an uphill struggle for the TD05-16G which is next in line for testing, followed by the well proven 18g and 20g.
Andy[/QUOTE
AN OLD THREAD I know but was this exercise ever performed and were the findings publicised?
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