Re: Questions about a Gas to Diesel conversion for a '72
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Re: Questions about a Gas to Diesel conversion for a '72
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Re: Questions about a Gas to Diesel conversion for a '72
I was thinking about putting a t5 behind the n/a 6.2. It has a 2.94 1st and a .73 od. If my math is correct, with stock tires at 28.5 inches, .73 od, 70 mph, and 3.08 in the back it is roughly around 1800 rpm which is according to dieselplace.com the rpm/mpg sweet spot. Plus, it should actually get better off the line than the turbo 400 because of the 2.94 1st vs 2.54 with 3.08. Reason im asking for someone's thoughts was because everyone has said 3.08 and a 700r4 (.7) od, will kill mpg but thats for gas, it looks to be beautiful for diesel.
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Re: Questions about a Gas to Diesel conversion for a '72
I haven't checked,but I figure my '85 Jimmy 6.2/700r4 came through with 3.08s. I never drove it to check mileage before going with 3/4t 4.10 axles with 35" tires. That puts my ratio at right about 3.73,based on the stock 3/4t 235/85 tires at about 31". That stuff came from my '91 Suburban 6.3/4L80E which got 22 mpg on hiway with all that. These things have more low end torque than most give credit. 1800 rpm would be a breeze to this NA motor.
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Re: Questions about a Gas to Diesel conversion for a '72
Well if you need more motivation, just took my truck on a little road trip and got 22mpg, and it even has a leaky injector.
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Re: Questions about a Gas to Diesel conversion for a '72
6.2/6.5s love to toast injection pumps and lift pumps. You are money ahead in the long run to go Cummins. Here is a 72 build you could look into.
http://67-72chevytrucks.com/vboard/s...d.php?t=310493 |
Re: Questions about a Gas to Diesel conversion for a '72
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Re: Questions about a Gas to Diesel conversion for a '72
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