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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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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Looking good so far!

Interesting about the boost control/spike. Perhaps they aren't 16psi?

Seen many turbosmart ones say "X" and varied by a good 3-4psi when on the car.

Soo surprised it comes on at almost the same time as -7 size turbos, makes twin turbos look like junk

Loaded up on a dyno -5s and -7s basically "come on" at the same RPM on a dyno interestingly enough, yet they are a good 60-70rwkw different up top.

Drive them on the street however and its a different story that you don't get on paper - been there and done it with -9 to -5 :)

scotty nm35 Grand Master

scotty nm35

Posted
Posted

Interesting about the boost control/spike. Perhaps they aren't 16psi?

Seen many turbosmart ones say "X" and varied by a good 3-4psi when on the car.

It depends on the pressure and also the piston location in the manifold. Apparently Turbosmart guarantee it will hold the stated boost due to countless hours of bullshit bullshit testing. Perhaps on their test jig, not in the 'real world'.

I am interested to see what my new 26psi springs turn out to hold. Hopefully I have time for a squirt tomorrow.

DVS JEZ Grand Master

DVS JEZ

Posted
Posted

Gonna have a play with it in the morning :)

Yes gate pressure, i agree 100% about the springs. But i cbf'd changing them. Just made it a bit ah touchy tuning it as i cant work up from low boost.

Ash- no extra loading on my dyno it has a set 2second preload and i start all runs at the same speed. I agree with transient boost response on the road tho. Deano and i can test the rolling starts :) -5's vs 6262

Deano 1 Mentor

Deano 1

Posted
Posted

yea paul, its all standard, its even the factory fuel lines, and rail just with id2k injectors and the plugs rewired. Oh his got cam gears on it.. but thats not out of the norm.....

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