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Precision Billet Turbos

R32GTR/Iceland
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SimonR32
SimonR32

The 6262 sillyness is never ending... New cams just got the most power and torque it's ever made

SimonR32
SimonR32
Mick_o
Mick_o

Dale is 100% correct its a well proven fact that smaller cams in RB's aid in response. Even going from a stock cam to a type b pon cam will cost you response. Been many track guys that have thrown the

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ido09s Mentor

ido09s

Posted
Posted

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

SiR_RB Grand Master

SiR_RB

Posted
Posted

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 Apprentice

silvianc

Posted
Posted

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 Grand Master

GTScotT

Posted
Posted

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).

silvianc Apprentice

silvianc

Posted
Posted

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

SimonR32 Grand Master

SimonR32

Posted
Posted

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

3rdgear_zps42d4c17f.jpg

PJ. Proficient

PJ.

Posted
Posted

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 Apprentice

silvianc

Posted
Posted

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.

Lithium Grand Master

Lithium

Posted
Posted

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 />

PSI086 Community Regular

PSI086

Posted
Posted

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

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