Jump to content
SAU Community

Recommended Posts

On 11/07/2022 at 12:13 PM, R377 said:

Thanks Lith, i haven't been on here for a few years now.

Always looking at street sensible (budget) RB25s.

From memory the 5858 sounded familar and also the 6262.  Quite a few yanks had some good results on their Evo / WRX.

Just looking at the Precision website, what are the new "gun" turbos ?

GEN2 PT5558 – 650hp

GEN2 PT5862 – 700hp

GEN2 PT6062 – 750hp

All good.

I'm not super super familiar with those tbh, I'm not going to bring up other turbos in a thread about Precisions but my opinion is that the Precision turbos really start starting to come into their own from the 64mm+ sizes - usually when you're looking at 75lb/min or less flowing turbos the aim is typically something that is geared towards being more snappy underfoot and the Precisions aren't necessarily famous for their transient response, at least compared to newer releases some other brands.   

I do know those 3 have been out for a few years now already, and I have at least heard the 6062 is a solid performer in it's own right - makes good power for a 60mm turbo and not particularly laggy.  Suggesting that I feel there are better options in no means I think they're nuggets :)

  • Like 2
  • 8 months later...

anyone found any 6062 results? having a poke around and they dont seem to exist from reliable resources in Australia.  

going to scale down from 6466 to 6062, also dropping cam size to pick up more downlow for rallysprint but just trying to make sure we are making the right move.  

 

 

  • 5 months later...

Thought I'd bump this thread as Precision have been superceding their Gen2 units with the  "NextGen" range and the updated 6266 and 6466 have just been released, rated at 925 (more than the Gen2 6466) and 1000hp respectively so decent improvements and probably most relevant to people who would be reading this.

 

The NextGen 6670 has also been released, kinda like a 6870 flow (quoted at 1100hp) but sitting between the 6466 and 6870 size wise.

  • Like 2

I have been keeping up to date with their releases. The one that still doesn’t make sense to me is the new 7275 being capable of making 1380hp especially considering the 7475 that replaced the old 7675 is only able to make 1350hp.
 

These are precisions claims of corse and no one has actually tried any of them or if they have, haven’t show the results 

44 minutes ago, Lithium said:

Fairly sure I've already seen a bonkers NextGen 7275 result, trying to think of where.  Could just be another Apex turbo result as those things are just mental 

Be interesting to see gen2 vs next gen 7275 on the same car and a couple of the sportsman’s against it as well 

Precision presented their new next gen 6466 yesterday. It's now rated to 1000hp vs the gen 2's 900hp rating. It's now available with either the S or HP cover. They mention that the cover has flow enhancements and I'm wondering if they will release the enhanced HP cover for the gen2's. 

Edited by TurboTapin
  • 3 weeks later...
On 28/09/2023 at 1:38 AM, TurboTapin said:

Precision presented their new next gen 6466 yesterday. It's now rated to 1000hp vs the gen 2's 900hp rating. It's now available with either the S or HP cover. They mention that the cover has flow enhancements and I'm wondering if they will release the enhanced HP cover for the gen2's. 

Is this based of the Mean Street Class Legal 6470 series turbos? If so, as much as i hate precisions due to the failures ive had, they will be a bonkers street turbo for the 3 litre guys if the same housing options exist.

4 hours ago, 33GTRV said:

Is this based of the Mean Street Class Legal 6470 series turbos? If so, as much as i hate precisions due to the failures ive had, they will be a bonkers street turbo for the 3 litre guys if the same housing options exist.

If you hate Precisions but like some of the "insane power vs turbo size" things maybe worth having a nosy at ApexTurbo, be super interesting to see something like one of their 64mm or so type units on an RB30.    They seem to be getting results that seem impossible, even when you consider the latest Precision offerings...  most significant Evo/Honda turbo records have already been picked up by things running ApexTurbos and one of the Honda guys "downgraded" from a bigger Precision turbo to a 62mm Apex to try and make it easier to get off the line and ended up making significantly more power at the same time, like they cracked 1000whp which is mad even on a US dyno without nitrous etc.

On 15/10/2023 at 8:40 AM, Komdotkom said:

Jesus the Apex Turbo website is terrible, I couldn't buy something with so little detail.

yeah, went looking for scientific purposes, and discovered that you need a degree in banging your nephson's sister to navigate. Pricey too the buggers

 

  • Haha 1
On 21/10/2023 at 3:52 PM, 33GTRV said:

yeah, went looking for scientific purposes, and discovered that you need a degree in banging your nephson's sister to navigate. Pricey too the buggers

 

I'm all for new products and manufacturers but they can't seriously expect to sell stuff with that type of information. Perhaps they sell through workshops who can demo the product on other cars.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Update 3: Hi all It's been a while. Quite a lot of things happened in the meantime, among other things the car is (almost) back together and ready to be started again. Things that I fixed or changed: Full turbo removal, fitting back the OEM turbo oil hardlines. Had to do quite a bit of research and parts shopping to get every last piece that I need and make it work with the GT2860 turbos, but it does work and is not hard to do. Proves that the previous owner(s) just did not want to. While I was there I set the preload for the wastegates to 0,9bar to hopefully make it easier for the tuner to hit the 370hp I need for the legal inspections that will follow later on. Boost can always go up if necessary. Fitted a AN10 line from the catch can to the intake hose to make the catchcan and hopefully the cam covers a slight vacuum to have less restrictive oil returns from the head and not have mud build up as harshly in the lines and catch can. Removed the entire front interior just shy of the dashboard itself to clean up some of the absolutely horrendous wiring, (hopefully) fix the bumpy tacho and put in LED bulbs while I was there. Also put in bulbs where there was none before, like the airbag one. I also used that chance to remove the LED rpm gauge on the steering column, which was also wired in absolute horror show fashion. Moved the 4in1 Prosport gauge from sitting in front of the OEM oil pressure gauge to the center console vents, I used a 3D printed vent piece to hold that gauge there. The HKB steering wheel boss was likely on incorrectly as I sometimes noticed the indicator reset being uneven for left vs. right. In the meantime also installed an airbag delete resistor, as one should. Installed Cube Speed premium short shifter. Feels pretty nice, hope it'll work great too when I actually get to drive. Also put on a fancy Dragon Ball shift knob, cause why not. My buddy was kind enough to weld the rust hole in the back, it was basically rusted through in the lowermost corner of the passenger side trunk area where the wheel arch, trunk panel and rear quarter all meet. Obviously there is still a lot of crustiness in various areas but as long as it's not rusted out I'll just treat and isolate the corrosion and pretend it's not there. Also had to put down a new ground wire for the rear subframe as the original one was BARELY there. Probably a bit controversial depending on who you ask about this... but I ended up just covering the crack in the side of the engine block, the one above the oil feed, with JB Weld. I used a generous amount and roughed up the whole area with a Dremel before, so I hope this will hold the coolant where it should be for the foreseeable future. Did a cam cover gasket job as the half moons were a bit leaky, and there too one could see the people who worked on this car before me were absolute tools. The same half moons were probably used like 3 times without even cleaning the old RTV off. Dremeled out the inside of the flange where the turbine housing mates onto the exhaust manifolds so the diameter matches, as the OEM exhaust manifolds are even narrower than the turbine housings as we all know. Even if this doesn't do much, I had them out anyways, so can't harm. Ideally one would port-match both the turbo and the manifold to the gasket size but I really didn't feel up to disassembling the turbine housings. Wrapped turbo outlet dumps in heat wrap band. Will do the frontpipe again as well as now the oil leak which promted me to tear apart half the engine in the first place is hopefully fixed. Fitted an ATI super damper to get rid of the worn old harmonic balancer. Surely one of the easiest and most worth to do mods. But torquing that ARP bolt to spec was a bitch without being able to lock the flywheel. Did some minor adjustments in the ECU tables to change some things I didn't like, like the launch control that was ALWAYS active. Treated rusty spots and surface corrosion on places I could get to and on many spots under the car, not pretty or ideal but good enough for now. Removed the N1 rear spats and the carbon surrounding for the tailpipe to put them back on with new adhesive as the old one was lifting in many spots, not pretty. Took out the passenger rear lamp housing... what do you know. Amateur work screwed me again here as they were glued in hard and removing it took a lot of force, so I broke one of the housing bolts off. And when removing the adhesive from the chassis the paint came right off too. Thankfully all the damaged area won't be visible later, but whoever did the very limited bodywork on this car needs to have their limbs chopped off piece by piece.   Quite a list if I do say so myself, but a lot of time was spent just discovering new shit that is wrong with the car and finding a solution or parts to fix it. My last problem that I now have the headache of dealing with is that the exhaust studs on the turbo outlets are M10x1.25 threaded, but the previous owner already put on regular M10 nuts so the threads are... weird. I only found this out the hard way. So now I will just try if I can in any way fit the front pipe regardless, if not I'll have to redo the studs with the turbos installed. Lesson learned for the future: Redo ALL studs you put your hands on, especially if they are old and the previous owners were inept maniacs. Thanks for reading if you did, will update when the engine runs again. Hope nothing breaks or leaks and I can do a test drive.
    • No those pads are DBA too  but they have colors too. I look at the and imo the green "street" are the best.
    • I’m not sure what happened I told them about sonic tunes free OTS tune and the next the I know .. I was booted..   To funny 
    • Yea - I mean I've seen my fuel pump which is decades old and uh, while I'm not saying this with real knowledge... but I sure get the ick at using anything in the fuel system that produced the state of that pump. Many years ago I went through multiple pumps (and strainers) before I dropped the tank to clean it out with extreme violence. I'm talking the car would do maybe 50km before coming to a halt, which resulted in me cleaning out the filter with some brake cleaner and going on my way. None of my stuff ever looked like what came out of your fuel tank. I don't think I'd be happy with it unless every single component was replaced (or at least checked/cleaned/confirmed to be clean here).
    • I'm not going to recommend an EBC pad. I don't like them. Just about anything else would suit me better. I've been using Intima pads for a while now.
×
×
  • Create New...