I currently have the precision 6765 with the SP housing and the .96 exhaust. I ordered it with the HP housing but was sent the wrong one. I didnt want to mess with sending it back and just stuck with it.
I know the difference in inlet and outlet size. My question is, what is the difference in flow and power capabilities.
So if you have experience or know of experience on how much more power the HP would make over the SP, if any, let me know. Ive seen people make 825+ on the HP unit. How close do you guys think the SP unit can get to that?

Any input will be appreciated. Thanks guys.

 

Shouldn't be any power or spool differences...

 

Yeah, I figured that it would spool the same. The only concern I had was that since the HP housing had a 3" outlet that it may be able to flow a higher volume of air, which should translate to more power. I mean, there must be a difference in performance otherwise they wouldn't make 2 options.

 

My vote goes to HP cover. Overall diameter of compressor housing is bigger than sp.

 

So is hp the biggest housing available for the turbo looking into a 67\66

 

^67/68 will still make more power than the new 67/66

 

I guess what I really want to know is, either with your personal experience or someone you know who has the 6765 w/the SP housing, how much power did you make and do you know the max it should support. I want to know so I can either stick with this one for my goals this season or get a bigger turbo before the tune.

Precision's website says 900hp, and Im assuming that is flywheel. It also doesnt say if that is the SP or HP housing. So what are your experiences please?

 

Had a friend dynoed my old 6765 into his 2.0 bseries

794whp 570wtq at 40-41psi at only 8k rpm. Stock ign. Misfiring badly from 7300 upwards.

6765hp t4 .68ar open housing.

Possibly could reach 850whp if we can rev it more and a good ign.

 

Which compressor housing did it have, HP or SP?

 

 

^^^ Ha, I didnt notice it said HP the first time, I see that now. Nevermind.

I just want to know what the SP housing can do. I already know the HP housing is capable of my goals, but I dont have the HP, I have the SP. And want to see if there is anyone who has made 800whp or more on the SP housing.
Please dont tell me about what you've seen the HP do, because I already know. Thanks.

 

Corey tuned a 6765sp k24/k20 setup that made 890 at 32psi on a dynapak

 

It's the wheel that flows air...the SP will not restrict airflow versus the HP. They are capable of the same output.