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Title: V8 economy Post by: Rev on March 30, 2007, 11:52:06 PM Hi guys,
Some of you are aware that I'm in the market for an FE or FC up to $10K. No luck so far. But in the process of hunting, I've come across an issue I need some advice on. I'm looking for something that's been modified. I've always thought in terms of a 186 or something similar as replacement to the old sideplate. But I've seen a couple of cars that are running small V8s, and one of them was on gas. Just on a fuel economy point of view, what kind of mileage can I expect from a small block V8 on gas? (and can you talk to me in mpg, I still can't get my head around km per litre) Thanks for your help, Rev Title: Re: V8 economy Post by: Ed on March 31, 2007, 05:14:04 AM Hey Rev,
not sure if V8 and economy belong in the same sentence.. not so bad if you have a light foot i spose, good gearing, overdrive, and EFI... figure on 16 - 20L/100kms (city) or around 15L/100 (highway). that's with a 1.00 final ratio on gearbox, 3.25 diff gears and EFI. im fitting overdrive to reduce the consumption and adding a lock up convertor. sorry about the L/100 thing, i cant get my head around MPG. hope this helps. these are petrol figures, LPG uses about 20% more. if you're in the marklet for a V8 have you seen Ben's (revhead fc) 350 HR for sale? Cheers Ed Title: Re: V8 economy Post by: Rob_FE_56 on April 03, 2007, 10:56:10 PM G'day Rev,
Was always keen on running a carbied small block chev in my fe but excessive fuel consumption killed that idea. Changed the plan to an injected 5 litre holden with a 4l60 box ( about 30% overdrive). I am running 2.75 diff gears with 13" wheels which brings me back to about 2 grand at 60 mph with the o/d auto. Pretty close to standard commodore gearing. With any luck we should get somewhere around 32-34mpg out on the highway which will work in with the plan to use it as a daily driver if need be. The engine is stock bar the addition of a factory 195kw VS HSV chip and a very mild camshaft chosen to suit it. Minus power steering pump and with a decent exhaust should get a bit over 200kw and a shed load of useable torque. The extra initial cost of an injected engine will soon repay itself in fuel savings if your'e keen to run up a few miles. Injected engines are becoming real cheap these days, a vn 5.0 L went for $900 on ebay recently! Cheers, Rob. |