2.5 engine or 2.1
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the supporting mods gearbox,clutch, coilovers, breaks, anti roll bars, injectors and much more it's a big jump from 400 to 500 and it's expensive.
2.1 more for drag use 2.5 more for road use although 2.1 will make a nice road car but not as nice as a 2.5
2.1 more for drag use 2.5 more for road use although 2.1 will make a nice road car but not as nice as a 2.5
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I have both a 2184cc wrx with a GT3071 for hillclimbs and a 2.5 STi with MD321t for road use. The 2.5l is much easier car to drive in traffic. The extra torque available at lower revs makes a difference. Same power about 470bhp but the 2.5l has an extra 70ftlbs torque. I am considering a 2.5l for hillclimbs as well due to this.
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A friend of mine had four built 2.5's fail at 500+ bhp
He now runs a 650 bhp 2.1 bult by Alan Jeffery at Enginetuner. and it laughs at the punishment.
Guess which I'm aiming to buy currently ?
dunx
He now runs a 650 bhp 2.1 bult by Alan Jeffery at Enginetuner. and it laughs at the punishment.
Guess which I'm aiming to buy currently ?
dunx
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Don't get me wrong the 2.5 is quite a beast, but haven't seen one last ( at my budget ) running 550 bhp. So a slightly less torquey 2.1 that will rev to 8K rpm is fine for me...
dunx
dunx
#18
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High power 2.5 builds can and do last...... my Spec C was testiment to that one, and it took a right beating. It is all about the parts, the engine builder and the mapper imo.
However.... the 2.1ltr is a good option all things being equal.
However.... the 2.1ltr is a good option all things being equal.
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I had the same questions last year , i don’t think there is a answer it’s all down to personal preference and budget. I went with the 2.35 to try and get a compromise between the 2.0 – 2.5, so far i am very happy with the results and the way it drives.
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