12v71 TI Detroit’s

[edward]

I have seen hp ratings of , 650,750 850 etc. for these motors . Were they special from J/T , Covington ? What are the differences, heads,injectors, turbos ? Can you easily rebuild a 650 hp motor to 850hp ? Regards, Edward

[dottieshusband]

I have seen hp ratings of , 650,750 850 etc. for these motors . Were they special from J/T , Covington ? What are the differences, heads,injectors, turbos ? Can you easily rebuild a 650 hp motor to 850hp ? Regards, Edward

I've seen 650 and 675 for my Ti engine. The TA's are higher hp. As far as I know, the N90's are the largest injectors. My sense is you could go from 17 to 1, to 18 to 1, and go to a bigger turbo.. don't know exactly what that would net you.. but more power!

[ageless]

I have twin turbo 12-71 TA's rated @ 870hp

[Briankinley2004]

Mine are TI's and rated at 840HP. Covingtons. I have heard there is a lot to go back natural but not sure about increasing HP.

[racclarkson@gmail.com]

Blower gear ratio change, maybe larger inter cooler, larger oil cooler, larger HE, possibly different water pump plus what’s been mentioned. Should already be four valve heads.

[luckydave215]

Mine are TI's rated at 1000 hp, so it CAN be done.
Whether it SHOULD be done.....I would say no!