RB26 Cam Question

[dsmart]

not worth rebuilding, wait and find a better set

[FLYSKY]

The oil was just from the way they were stored in the box, the input port drained over the turbos and dripped on the turbine. They had done under 20,000 miles so are in very good condition, never used oil when on the car.

thats what the seller said

and that r the turbo's







only run 20 000 miles, 0.8bar on low boost and 1.2bar on high boost

[GTR-Dad]

If you value response at a few hundred rpm lower than the -5's above about 100 HP peak power, then go for it.
Where did the oil on the turbine come from?

The airflow required to make 500 whp puts the -7's well past peak efficiency. I'm sure you can make that power, but it will not be as efficient as with the -5's.

It's hard to really answer these questions until you've been there, which is part of the fun!

Enjoy!

Dan

[FLYSKY]

i am wondering if a set of GT-SS Turbos would be good 'coz i've found a set of nearly new HKS GT-SS Turbo's for 600GBP, should be around 970CAD but they r in a very good condition, just the turbine wheel show's some oil.
it's hard to resist for that offer but heard it run out at 6500rpm, so should i give it a try?

[dsmart]

Turbo comparisons are as follows

2860R -7 = R34 N1
2860R -9 = HKS GTSS
2860R -5 = HKS 2530

[FLYSKY]

sounds pretty nice!

r the 2860R -7 more like GT-SS Turbo's or bigger than those? GT-SS runout at 6500rpm from what i've heard so wouldnt be what i am lookin for

[GTR-Dad]

I struggled with the same choice and went -5's.
I'm happy with the response and happier still with the power!
Dan

[FLYSKY]

just saw the -5 r up to 360hp and -7 310 hp

so with both it's possible to hit 600hp, -5 r pretty similar to the GT2530 one's so i am wondering how fast the -7 spools compared to the -5 and if the max power is similar to the -5 on high rpm, anybody gotta dynorun of both or knows what should be better? i dont wanta track car, it's more just like a pretty fast street car, so for daily driving and on the track maybe 1 or 2 times a year.

goal is to get to the 500+ PS/HP Club with great power and response, fast spool up and all the power to the rev limiter

[cobrAA]

dont know what was for what now but the one was for spool and the other for top end

opposite. -7 quicker.

[FLYSKY]

dont know what was for what now but the one was for spool and the other for top end

[allwheeldrifter]

I've heard -5 for quicker spool and -7 for more top end or so

i heard the opposite

[FLYSKY]

i think that i will take Tomei Type B Poncam 260° IN/EX 9.15mm but still not sure about the turbo's i wanna run, i would like 2 get HKS GT2530 but i guess Garrett GT2860R -5 r pretty close to them and r not that expensive but i am also wondering how -7 would do on RB26.
I've heard -5 for quicker spool and -7 for more top end or so

[LuckyGTR]

yeah ! thats what i drive 502 whp at 18.5 psi wit n1 and grex cams alot alot of other goodies way to long to write lol

[FLYSKY]

aren't the -7 R34 GTR N1 one's?

[Bruizer]

I'd suggest smaller turbos ( like -7s or GT-SS or R34 N1s) and type A tomei cams, good for 500whp and LOTS of response!!!

Oh, if you have to do air care and have issues, tomei has type R cams which are easier to pass.