Precision 6262 Turbo
#1
Manly
Thread Starter
Join Date: Mar 2008
Location: Toms River, NJ
Posts: 146
Likes: 0
Received 0 Likes
on
0 Posts
Precision 6262 Turbo
Has anyone attempted to use this turbo in an rx7 before with the 13b? Or is anyone in the process of installing one? Im sure it wouldnt be a problem but for the sake of information, technical or experience driven has anyone ever attempted it? My friend and I just finished installing the Precision 6262 turbo from Precision Turbo into his 07 STi. Essentially a modified gt35r its still pretty intimidating to see the numbers put forth by its use in the Mitsubishi Evo by AWD Motorsports. Hopefully after a bit more research and some forum member input I will have a better answer as to whether this turbo would be a interesting route for me to pursue.
#2
It wasn't me!!
iTrader: (1)
Join Date: May 2004
Location: Cayman Islands
Posts: 1,189
Likes: 0
Received 0 Likes
on
0 Posts
was going to get this for a friends rx7. I was told great spool up and powerband. Decide to go with a pt67 with a .81 housing because of more power potential at less boost pressure. Best thing we ever decided. Car hits like a bat out of hell on 1 bar
#4
rotorhead
iTrader: (3)
these turbos were extensively discussed in this thread: https://www.rx7club.com/single-turbo-rx-7s-23/billet-turbos-whats-deal-825798/
I have yet to see controlled studies between the billet turbos and non billet turbos with the exact same measurements and specs , except this one by Garrett which found no noticeable improvement from the billet manufacturing itself: http://www.turbobygarrett.com/turbob..._Machined.html . I remain unconvinced by internet rumors and random dyno sheets, even from respected and knowledgeable people.
It's still a modified 62-1 compressor wheel and a stage 5 t3 turbine wheel to me. All the "it spools faster than this" and "it makes more power than that" internet rumors do not give detailed specs in their comparisons. We all know that you can get gazillion combinations of housings and wheels on most turbos. If the 6262 makes more power than whatever other turbo you want to compare it to, it's probably because the 6262 has a bigger wheel(s) or a bigger housing(s). If it spools faster than whatever turbo you are comparing it to, it probably has a smaller wheel(s) or a smaller housing(s). I trust Garrett when they say that the machining/billet process alone does not add efficiency. And whatever other engineering tricks Precision supposedly has used to increase efficiency have not been described in detail, as they seem much more focused on branding ("billet" this and "billet" that).
I have yet to see controlled studies between the billet turbos and non billet turbos with the exact same measurements and specs , except this one by Garrett which found no noticeable improvement from the billet manufacturing itself: http://www.turbobygarrett.com/turbob..._Machined.html . I remain unconvinced by internet rumors and random dyno sheets, even from respected and knowledgeable people.
It's still a modified 62-1 compressor wheel and a stage 5 t3 turbine wheel to me. All the "it spools faster than this" and "it makes more power than that" internet rumors do not give detailed specs in their comparisons. We all know that you can get gazillion combinations of housings and wheels on most turbos. If the 6262 makes more power than whatever other turbo you want to compare it to, it's probably because the 6262 has a bigger wheel(s) or a bigger housing(s). If it spools faster than whatever turbo you are comparing it to, it probably has a smaller wheel(s) or a smaller housing(s). I trust Garrett when they say that the machining/billet process alone does not add efficiency. And whatever other engineering tricks Precision supposedly has used to increase efficiency have not been described in detail, as they seem much more focused on branding ("billet" this and "billet" that).
#6
rotorhead
iTrader: (3)
^ sounds like a T04Z stuffed in a T3 housing with almost a 20% markup... http://www.clubrsx.com/cr/PTE-6765-B...mpaign=froogle
T04Z http://www.atpturbo.com/Merchant2/me...egory_Code=GTB
I'm not saying this line of turbos won't make power or won't spool quickly. Frankly, I'm bothered by the [admittedly effective] marketing gimmick. It goes something like this: if a regular turbo is good, and ball bearing is better, then ball bearing + billet must automatically be best. back in the day the hype was ceramic turbos...
T04Z http://www.atpturbo.com/Merchant2/me...egory_Code=GTB
I'm not saying this line of turbos won't make power or won't spool quickly. Frankly, I'm bothered by the [admittedly effective] marketing gimmick. It goes something like this: if a regular turbo is good, and ball bearing is better, then ball bearing + billet must automatically be best. back in the day the hype was ceramic turbos...
#7
I have pushed both turbos to their limits. A Precision 6265 billet turbo will make more power than any PT67 turbo and with better spool also.
Tommorow I'm going to find the limits of the 6765 billet turbo.
Keeping fingers crossed that the AWD Motorsports Evo makes 850whp with that turbo.
Both turbos below are 76mm inducers. The one on the left is the billet version and the one on the right is the regular casted version.
It's pretty obvious where the differences are and also why the billet versions out perform the same inducer casted versions.
On the below turbos I've made 80whp more with the billet vs cast version at 35psi on one particular application.
Tommorow I'm going to find the limits of the 6765 billet turbo.
Keeping fingers crossed that the AWD Motorsports Evo makes 850whp with that turbo.
Both turbos below are 76mm inducers. The one on the left is the billet version and the one on the right is the regular casted version.
It's pretty obvious where the differences are and also why the billet versions out perform the same inducer casted versions.
On the below turbos I've made 80whp more with the billet vs cast version at 35psi on one particular application.
Trending Topics
#9
NASA geek
iTrader: (2)
these turbos were extensively discussed in this thread: https://www.rx7club.com/showthread.php?t=825798
I have yet to see controlled studies between the billet turbos and non billet turbos with the exact same measurements and specs , except this one by Garrett which found no noticeable improvement from the billet manufacturing itself: http://www.turbobygarrett.com/turbob..._Machined.html . I remain unconvinced by internet rumors and random dyno sheets, even from respected and knowledgeable people.
I have yet to see controlled studies between the billet turbos and non billet turbos with the exact same measurements and specs , except this one by Garrett which found no noticeable improvement from the billet manufacturing itself: http://www.turbobygarrett.com/turbob..._Machined.html . I remain unconvinced by internet rumors and random dyno sheets, even from respected and knowledgeable people.
It's still a modified 62-1 compressor wheel and a stage 5 t3 turbine wheel to me. All the "it spools faster than this" and "it makes more power than that" internet rumors do not give detailed specs in their comparisons. We all know that you can get gazillion combinations of housings and wheels on most turbos. If the 6262 makes more power than whatever other turbo you want to compare it to, it's probably because the 6262 has a bigger wheel(s) or a bigger housing(s). If it spools faster than whatever turbo you are comparing it to, it probably has a smaller wheel(s) or a smaller housing(s).
This isn't internet hype or marketing gimmicks, so drop the whole conspiracy theories and get up to date! Same applies to the turbine wheels too. The newer turbines flow more, are more efficient at extracting power, resulting in quicker spool up and LESS back pressure.
There have been NUMEROUS PROFESSIONAL racers responding in this and the other thread. And Precisions' billet wheels are not simply older designs copied and then machined out of a billet slug. They are completely NEW designs using the billet process in mind when they were designed. This constant doubting or cynicism is a slap to the pro racers on this board and Precisions’ face. Go get your learn on before being such a cynic.
Last tid bit, billet wheels are NOT new. They have been in top tiered motor sports for a number of years (F1 comes to mind) and are now just trickling down to an affordable rate to manufacture and to BUY for smaller companies and individuals.
BTW, FYI I was a Garrett dealer.
These things were hinted at in the very thread you left a link for, did you not read any of it?
~Mike...............
#10
Real world testing results!
818whp on a Precision Billet 6765 turbo. Let's see that happen on a regular 67mm turbo!
http://www.youtube.com/watch?v=AehC1Q3Bakk
818whp on a Precision Billet 6765 turbo. Let's see that happen on a regular 67mm turbo!
http://www.youtube.com/watch?v=AehC1Q3Bakk
#11
Mad Man
iTrader: (5)
Cripspeed, Do you have any dyno's of the 6262 compared to the T67? I was about ready to move to a T67 from my 62-1 but if I can upgrade to one of these billets and make the same power with a smaller wheel I say why not. Also do you know if precision is rebuilding or selling the compressor wheels only or full turbos only?
Last edited by fritts; 05-02-09 at 10:14 AM.
#12
Manly
Thread Starter
Join Date: Mar 2008
Location: Toms River, NJ
Posts: 146
Likes: 0
Received 0 Likes
on
0 Posts
Awesome vid crispeed. Pretty much set on the 6262, little smaller but it will make me more than content. that 6265 is putting out some insane numbers though!!
#13
Senior Member
iTrader: (3)
RacerXtreme, you hit the nail on the head. I was going to give a similar explanation but you saved me from typing
Fritts, Precision will upgrade current turbos to the billet compressor wheels but wont sell you the parts. Its better to buy a complete turbo so you have a new CHRA, but you can go either route.
Fritts, Precision will upgrade current turbos to the billet compressor wheels but wont sell you the parts. Its better to buy a complete turbo so you have a new CHRA, but you can go either route.
#14
silver ghost
iTrader: (11)
Join Date: Sep 2003
Location: Home of the Rolex 24
Posts: 3,061
Likes: 0
Received 5 Likes
on
5 Posts
Chris.. Since you have the most real world experience w/ these turbos and almost all others.What billet would you say is comparable to response of a t4 35r w/ a .84 or .96 hotside. I am looking for a t4 framed precision turbo and trying to decide on the 62/62 or the 62/65. Not looking to run more than 20 psi. Looking for 400 to 450 whp on pump gas on a FD w/ streetported 13b full 3" exhaust tial 44m wastegate etc.. Gaby Skern is tuning the microtech in Orlando. His turbo reccomendations are for good power but I know will be laggy for my style of driving. Thanks G
#15
Ernie T's DADDY
Join Date: May 2008
Location: Florida
Posts: 52
Likes: 0
Received 0 Likes
on
0 Posts
Chris.. Since you have the most real world experience w/ these turbos and almost all others.What billet would you say is comparable to response of a t4 35r w/ a .84 or .96 hotside. I am looking for a t4 framed precision turbo and trying to decide on the 62/62 or the 62/65. Not looking to run more than 20 psi. Looking for 400 to 450 whp on pump gas on a FD w/ streetported 13b full 3" exhaust tial 44m wastegate etc.. Gaby Skern is tuning the microtech in Orlando. His turbo reccomendations are for good power but I know will be laggy for my style of driving. Thanks G
#20
I'm Single..Turbo that is
iTrader: (1)
Join Date: Nov 2004
Location: The Great Northwest
Posts: 768
Likes: 0
Received 0 Likes
on
0 Posts
Chris.. Since you have the most real world experience w/ these turbos and almost all others.What billet would you say is comparable to response of a t4 35r w/ a .84 or .96 hotside. I am looking for a t4 framed precision turbo and trying to decide on the 62/62 or the 62/65. Not looking to run more than 20 psi. Looking for 400 to 450 whp on pump gas on a FD w/ streetported 13b full 3" exhaust tial 44m wastegate etc.. Gaby Skern is tuning the microtech in Orlando. His turbo reccomendations are for good power but I know will be laggy for my style of driving. Thanks G
I am in your same boat. I am looking to upgrade my T04E. I have been looking at this same turbo. I would love to see some dyno numbers with this turbo on an FD...