450?! That\'s all?!
A magazine would be the last reference I would use concerning diesels. As an example, I remember then quoting the maximum EGTs for the diesels on the market, and they were all over the place. Most of them were just wholy inaccurate. /forums/images/graemlins/screwy.gif
That aside, I'll stick to talking about what I know - 6.2L diesels.
Let's rationalize this for a minute:
The bottom end and rotating assembly (save the pistons) on a 6.2 is identical to the bottom end and rotating assumbly on a 6.5. A 6.5, given the right fuel and air, can easily build 500-550 lb-ft, and live a long 200k-300k mile life. With that in mind, and knowing the the differences seperating the 6.2 and 6.5 are small, we can work backwards to say that a 6.2 should be able to build similar power levels without sacrificing longevity. That's on stock 21:1 compression, too. /forums/images/graemlins/eek.gif
However, it takes more than the bolt-on Banks kit to build those numbers. You'll need a more responsive turbo, larger exhaust, and better fueling and injectors. A CR of 18:1-19:1 is an ideal upgrade as well.
Here's a brief recipe for how a 21:1 6.2L can hit (or at least come really close) to that 500 lb-ft mark:
<ul type="square"> good running engine
75-80 mm3 of fuel from a DB2
turbo rated pop-pressure (2150 psi) and flow rate injectors
plenty of air, topping out at around 16 psi
intercooled
money /forums/images/graemlins/grin.gif
[/list]
Having built my engine, I can testify that these cranks are up to the task, and the four bolt main is a good 'un. Look at the links in my sig for more details on my engine build. We're in the process of building a 300+ hp electronic 6.5TD for the 96, and we're finding many of the same things we did with the 6.2L project engine - these things perform when taken care of. /forums/images/graemlins/waytogo.gif
The key to evaluating what your level of expectation from a 6.2/6.5 should be is this:
Sift through all the BS on this internet, and look for the people that try out products, give quantifiable, repeatable results, and from that put together a reasonable goal for yourself. 450 lb-ft, while a high water mark for many, is by no means the high for all of us. Do you own research; but realize that asking the question, "how much power can I make," is a internal one that should guide your information quest, and not one that someone else can answer in a single post.
A magazine would be the last reference I would use concerning diesels. As an example, I remember then quoting the maximum EGTs for the diesels on the market, and they were all over the place. Most of them were just wholy inaccurate. /forums/images/graemlins/screwy.gif
That aside, I'll stick to talking about what I know - 6.2L diesels.
Let's rationalize this for a minute:
The bottom end and rotating assembly (save the pistons) on a 6.2 is identical to the bottom end and rotating assumbly on a 6.5. A 6.5, given the right fuel and air, can easily build 500-550 lb-ft, and live a long 200k-300k mile life. With that in mind, and knowing the the differences seperating the 6.2 and 6.5 are small, we can work backwards to say that a 6.2 should be able to build similar power levels without sacrificing longevity. That's on stock 21:1 compression, too. /forums/images/graemlins/eek.gif
However, it takes more than the bolt-on Banks kit to build those numbers. You'll need a more responsive turbo, larger exhaust, and better fueling and injectors. A CR of 18:1-19:1 is an ideal upgrade as well.
Here's a brief recipe for how a 21:1 6.2L can hit (or at least come really close) to that 500 lb-ft mark:
<ul type="square"> good running engine
75-80 mm3 of fuel from a DB2
turbo rated pop-pressure (2150 psi) and flow rate injectors
plenty of air, topping out at around 16 psi
intercooled
money /forums/images/graemlins/grin.gif
[/list]
Having built my engine, I can testify that these cranks are up to the task, and the four bolt main is a good 'un. Look at the links in my sig for more details on my engine build. We're in the process of building a 300+ hp electronic 6.5TD for the 96, and we're finding many of the same things we did with the 6.2L project engine - these things perform when taken care of. /forums/images/graemlins/waytogo.gif
The key to evaluating what your level of expectation from a 6.2/6.5 should be is this:
Sift through all the BS on this internet, and look for the people that try out products, give quantifiable, repeatable results, and from that put together a reasonable goal for yourself. 450 lb-ft, while a high water mark for many, is by no means the high for all of us. Do you own research; but realize that asking the question, "how much power can I make," is a internal one that should guide your information quest, and not one that someone else can answer in a single post.
