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Would the 2867 offer better bottom end(off boost) than the 2863?
Because the 67 offering more air...
And with the same hot side setup, spool up time would be minimally different if even noticable at all?
Yes the GTX is their way of competing with the HTA versions. The GTX just has longer lungs compared to the Gt. For example the 2860 on the Yamahaulers would max out at 16-18. A comparable 2863 can handle much higher pressure ratios and can flow "almost" as much as a 71 on the top end, yet keep the 60 response. While it gains efficiency and you would get a slight bump in HP per pound of boost the main benefit in this scenario would be the ability to get rid of the choke point in the turbo sizing and keep turning it up.
2863 has the response of the 60 with "similar" flow to the 2871.
2867 has better response than the 2871 but more flow.
And then there is the other side of the debate of the much larger sizing "76" being able to breath better than the others on the bottom end leading to better spool... For my next project I would choose the 2867. I think the 2871 is the best all round setup for boondocking and general climbing. And if the 2867 is slightly better than that sounds like fun
*A proper water to air setup would add more power and consistency than swapping the turbo and running the exact same psi. Keep in mind Neil's GTX2863 Water/Air Pro at 8psi being the one to beat... The 2860 wouldn't have the lungs to deliver the air on the top end with the water to air setup, it would be working too hard... GTX can bridge that gap.
If you have the guts to hold the flipper down and hang on!!!!! Sounds like a Sick set up! Post up some pics.....
ill have my new 2867 on the snow this weekend on my 2010 m8... I know guys like them on the Polaris so Im hoping to see an improvement on the cat as well.... I ll let ya know if there is a difference between the 2871 and 2867 on the Cat after the ride... Keep fingers crossed.....
Skinner and Burandt were running the 2863's last year, and went back to 2860's from what I read.
I would guess they went with the GTX2860... I talked to a guy on the mountain a couple weeks ago that had a BD Pro built by VOHK that claimed it was running GTX2860. I ripped, sounded very responsive
Don't think they make a GTX 2860
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I thought they did, looked at there website it is on here
http://www.turbobygarrett.com/turbobygarrett/turbocharger