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Old 09-16-2013, 07:45 PM   #42
ryanroo
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Join Date: Apr 2004
Location: sw colorado
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Re: Putting a diesel in my 69 GMC? What engine to use?

Quote:
Originally Posted by clinebarger View Post
I said stock Turbo, As in HX-35, But running whatever fuel plate, Intake & exhaust.
so? still apples to oranges. the choke point on the 12v being the stock 12cm housing on the turbo will limit the performance. dump as much fuel and put the biggest intake horn you want on it. still going to have retarded drive pressure. duramax has a larger turbo(63? vs 56mm inducer) and its variable geometry. still not really a valid comparison. id still bet if you set up the 12v to run well at similar power numbers it would be a much closer "race".

i am not saying one is better than the other. i just think the comparison is moot given the >decade difference between the two. the industry standards for power skyrocketed during that decade and the technology changed dramatically as well. the 6bts are running with the same technology that they started with on unnaturally aspirated diesels. the lbz is a bit further ahead.
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