I had the regular 61mm Turbonetics that come with the Hellion kit on my car and had a ton of dyno pulls with them before KOTS. The seal took a shit on one of my turbos, so I sent them off to Turbonetics to be fixed and a friend in the middle of his HP twin build offered to let me use his twin Precision 6262's with anti surge housings, billet wheels, and ball bearings. So I wanted to throw them on and see how they compared.
Last night we threw the car on the dyno at Horsepower Solutions, where I have done all my dyno pulls and tuning to see how they would compare. I forgot my X-cal,so we only made 2 pulls on my low boost, pump-meth tune, which makes about 21.5#'s of boost. The dyno's analog boost sensor reads about .5# in atmosphere, so take that into consideration for peak boost #'s. I also have my Eboost2 set to start opening the waste gates at 14#'s to keep the power from hitting so hard, so it may not show a spool difference, if there is one, above 14#'s.
Here is the dyno graph from last night over layed on one of my previous Turbonetics pulls with similar boost and conditions. The Precisions are the Red graph.
No tuning changes were made, as it looked pretty solid, and close to the old pull. We were tld that the billet wheels wont really show themselves til we get up above 22#'s, so we should find out today when we turn the boost up.
Here is an old pic of the Turbonetics on the car.
Here are the Precisions.
I'll get a side shot of the precisions up tonight. The mid section is a about a .5" thicker, I'm guessing because of the Ball Bearings.
Last night we threw the car on the dyno at Horsepower Solutions, where I have done all my dyno pulls and tuning to see how they would compare. I forgot my X-cal,so we only made 2 pulls on my low boost, pump-meth tune, which makes about 21.5#'s of boost. The dyno's analog boost sensor reads about .5# in atmosphere, so take that into consideration for peak boost #'s. I also have my Eboost2 set to start opening the waste gates at 14#'s to keep the power from hitting so hard, so it may not show a spool difference, if there is one, above 14#'s.
Here is the dyno graph from last night over layed on one of my previous Turbonetics pulls with similar boost and conditions. The Precisions are the Red graph.
No tuning changes were made, as it looked pretty solid, and close to the old pull. We were tld that the billet wheels wont really show themselves til we get up above 22#'s, so we should find out today when we turn the boost up.
Here is an old pic of the Turbonetics on the car.
Here are the Precisions.
I'll get a side shot of the precisions up tonight. The mid section is a about a .5" thicker, I'm guessing because of the Ball Bearings.
