L31MaxExpress
I'm Awesome
The best MPG was with the 6.5 non turbo delivery van engines. They used 6.2 style heads and injectors and high compression.
6.5 turbo diesel dead. Now what?
- Thread starter Sparkysikes
- Start date
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The best MPG was with the 6.5 non turbo delivery van engines. They used 6.2 style heads and injectors and high compression.
Sparkysikes
I'm Awesome
I am thinking 18:1 db2 modded for more fuel capabilities.
The lower compression will allow the motor to Rev easier but not carry as much low end torque off idle. My motor when it crosses 1600 wants to slow the revs. I usually drive around 18-2100 on the freeway.
How will the lower compression effect turbo lag? How much low end torque will be given up between 1000 & 1500 rpm. I can drive decently quick without the boost coming on even when we'll over 10k in weight.
The newer dmax and powersmoke run I believe 16:1 range.
The lower compression will allow the motor to Rev easier but not carry as much low end torque off idle. My motor when it crosses 1600 wants to slow the revs. I usually drive around 18-2100 on the freeway.
How will the lower compression effect turbo lag? How much low end torque will be given up between 1000 & 1500 rpm. I can drive decently quick without the boost coming on even when we'll over 10k in weight.
The newer dmax and powersmoke run I believe 16:1 range.
18:1 is kind of old news with current turbo offerings. It seems the 18:1 was to combat the high drive pressure of the GM turbos, put a big ol Quadstar turbo on and leave it high compression.
