1cleangsx
Proven Member
- 837
- 767
- Sep 28, 2013
-
Cheyenne,
Wyoming
Please show me a dyno graph of an hx52 on a 2.0 liter motor at altitude 

Much of that is because Precision sponsors the events, and then makes the only turbo that fits a specific size frame...like the 6280 which is basically a class-cheater using a 76mm compressor with the inducer cut down to 62mm in front of the MWE groove.Like I have been saying to everyone. Those turbos are just expensive paperweights. Sit down and look at what class racers(think World Cup finals type cars) are running. You will see very few people running the Xona stuff.
FP shines on the “bolt on” market with the proof to back that class, can’t speak on the Xona stuff as I have no hands on with it. They’re the only ones still offering turbochargers that can make power in a bolt on configuration out of the box and have a big backing from the community, nowhere else is that easily obtainable. Sure there’s the BEP housings for the Holset’s and the hx35 worked well in that configuration (I was never blown away by the hx40 in the .55 housing) but the problem is that housing is no longer available new, so you factor in buying a $300 used turbine housing, a $150 super core, then the amount to have it serviced you’re talking almost brand new FP money. Same with the older Garrett based Precision stuff from before it was all over priced trash, heavy hitting bolt ons that were reliable but same issue as running a Holset in a bolt on housing in the year 2022, have to actually find the turbo then 9 times out of 10 have it serviced landing you just about at new FP price. Don’t get me wrong, I love Holsets and some of the old bolt on PTE stuff, but ultimately FP’s most modern bolt on stuff is going to outperform all of it (in bolt on config that is).I don’t mind FP Turbos but I’ve never thought they were worth the premium they charge. Same with precision TBH.
Oh I’m sure, I’m saying in comparison to other “bolt on” options. It’s like I said, even here in flat ol Ohio if I ever decide I want that kind of power again I’d switch back to a t3 set up before I’d go chasing it that route. That’s not to knock them either but to me by the time you buy everything you need to make it work well you’re not saving anything over a t3 or t4 set up and it’s not “bolt on” enough at that point to be much more convenient, it’s just simply why they sell them and they do outperform for the most part and are much easier to obtain than anything else bolt on is the selling point for many is what I was saying. I get a bunch of feathers ruffled when I say it but to me the black is massively over rated, while yes it’s made 600 before for some people, and yes we know people have gone fast with it (we ALL know one person went 8s on it as anytime it’s brought up that gets referenced), I’ve seen a few cars tuned with one personally that struggled to hit 450 for most users resulting in one hell of a boring bolt on turbo. I’ve driven 2 cars with the black in an 8cm housing and my personal s363sxe in a .82ar t3 housing lit off faster as well as my other buddies hx40 in a .70ar open t3 housing was better spool and response, along with seeming to pull harder up top. Can’t speak on the reliability of it but the things a bore in my opinion and easier much more efficient ways to make the power very few have made with it. That’s not to knock FP/Xona as a company as I’ve seen plenty of good from them but that specific turbo that was hyped up for years to me isn’t worth it over a simple t3 set up.Those bolt on jobs don’t work that well though. Especially at altitude. Back pressure problems and under perform like you wouldn’t believe. Racing at sea level and at 6000ft are not the same. And that goes for turbos across the board.