Precision Billet Turbos

[rbjunkie]

If anybody is interested I have a 6266 dual ball bearing T4 0.84 vband rear turbo for sale. May save the hassle than buying from the states. turbo is brand new and comes with extra vband flange for fabricating dump pipe.

[ido09s]

Such a nice looking engine, please tell me your going to clean up the throttle bodies and the throttle body plate some more I know i should keep my negative comments to myself but it would look so much nicer if they were bead blasted and looked like new!!!!

Also could i suggest upgrading the oil pump to a Tomei pump. An N1 probably wont last too long on an engine with that sort of power.

Will a 6262 make that much power at 25ish psi of boost? 600rwhp is 450ish rwkw.... i am running a 6766 and make 485rwkw at 25psi with a pretty damn healthy RB26

[SimonR32]

My 6262 makes 590rwhp on 20 psi on e85 so I would imagine 550rwhp should be doable on 20-22psi with pump fuel

[SiR_RB]

I just chucked some 264 9.7 cams and upgraded valve springs In

Waiting for 2000 injectors then it's going for a retune on the 25th jan see what we can get out of the 6266 now as it was running out of fuel last tune

[silvianc]

Such a nice looking engine, please tell me your going to clean up the throttle bodies and the throttle body plate some more I know i should keep my negative comments to myself but it would look so much nicer if they were bead blasted and looked like new!!!!

Also could i suggest upgrading the oil pump to a Tomei pump. An N1 probably wont last too long on an engine with that sort of power.

Will a 6262 make that much power at 25ish psi of boost? 600rwhp is 450ish rwkw.... i am running a 6766 and make 485rwkw at 25psi with a pretty damn healthy RB26

yeah, itbs, and runners are in the shop as we speak to get cleaned up. car will be in the drag occasionally, mainly street use and not a lot of abuse. was told that N1 with a got collar should last but def will consider getting a better pump

[GTScotT]

6262 will struggle for 15psi by 4k RPM so if those are your only two options the choice is clear.

[SimonR32]

6262 will struggle for 15psi by 4k RPM so if those are your only two options the choice is clear.

I've got a lot of evidence to show otherwise?

[GTScotT]

I've got a lot of evidence to show otherwise?

How early man? It's a lot of turbo to have breathing that heavy, that early, on a 2.6.

I can't picture your result here and now but I know its impressive. Remind me when it's making that sort of boost (1 bar).

[SimonR32]

Between 3800-4000rpm in 3rd on the road

[silvianc]

I'm just blind estimating. I come from a sr20det swap with a gtx3071 and I didn't see 15 psi till past 5.5k rpms. If SimonR32 can show some proof of the spooling I'd be happy with the 6262. Now if the 6266 is behind just a few hundred rpms i will consider it as well.What rear housing? Would like to see the difference of 15 psi vs rpms between the 6262, 6266 on a 2.6 with similar cams. Thanks for the help guys. There is not many people with rb26 in my area so ita hard to get advise

[G37Sam]

What do you guys reckon the limit of a 6266 would be on pump gas (98 RON) and no Meth Injection? And at what PSI?

[SimonR32]

I'm just blind estimating. I come from a sr20det swap with a gtx3071 and I didn't see 15 psi till past 5.5k rpms. If SimonR32 can show some proof of the spooling I'd be happy with the 6262. Now if the 6266 is behind just a few hundred rpms i will consider it as well.What rear housing? Would like to see the difference of 15 psi vs rpms between the 6262, 6266 on a 2.6 with similar cams. Thanks for the help guys. There is not many people with rb26 in my area so ita hard to get advise

This is a log I uploaded a while ago, I wasn't actually testing just driving but as you can see it makes 1 bar in 3rd gear at about dead on 4000rpm

[PJ.]

I'm just blind estimating. I come from a sr20det swap with a gtx3071 and I didn't see 15 psi till past 5.5k rpms. If SimonR32 can show some proof of the spooling I'd be happy with the 6262. Now if the 6266 is behind just a few hundred rpms i will consider it as well.What rear housing? Would like to see the difference of 15 psi vs rpms between the 6262, 6266 on a 2.6 with similar cams. Thanks for the help guys. There is not many people with rb26 in my area so ita hard to get advise

Jose, if you were seeing boost that late for a 3071 on an SR then there was something either faulty with your car of you had a bad wrong combination.

I have never seen a twin scroll 6262 on any RB26 not have 15psi by 4000rpm on ethanol. I'm sure you'll be happy with one on a SR, just keep in mind the 6262 is capable of power beyond what is safe on 98 octane (for an SR20.)

[silvianc]

thanks for the advise guys,after looking at SimonR32 chart im sure ill be reall happy with it. Ordered the precision 6262 ball bearing T4 .84 divided housing. do you guys use a restrictor for the oil feed? I will update after tune. I'm not sure if I had a bad combination on the sr but I just got frustrated with it and that's why im going RB26 this time.

[ido09s]

According to our dyno graph we have 14psi at 4200 with a 1.0 split pulse rear and a 6766 on a stock stroke RB26. Admittedly the head is ported though so you should be pretty happy with the 6262

[NYTSKY]

14psi by 4800rpm RB30 T51R KAI.

Lag4lyf

[ido09s]

Worst turbo ever those things, all things considered they dont even make that much power. I had better response from my old T78 truck turbo

[Lithium]

That wouldn't surprise me too much but the T78 is a smaller turbo so not comparable. Compare a T88 with the T51R and the T51R response will look a lot better, then no doubt go to a modern 67mm billet turbo and things start getting quite interesting <br /><br />Sent from my GT-I9505 using Tapatalk<br /><br />

[NYTSKY]

550rwkw@25psi is fairly decent IMO.

[PSI086]

do you guys use a restrictor for the oil feed?

The fitting in the turbo has a restrictor built into it so you shouldn't need to fit one. Someone please correct me if I'm wrong though

Just out of curiosity what is the correct thread for the oil feed fitting? I found 1/8 npt didn't seem to wind in as far as I'd like