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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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GTScotT Grand Master

GTScotT

Posted
Posted

Thanks very muchly. What's a new chra worth if worst comes to worst

That I'm not sure about, but the JB CHRA will have the longer life span if anything.

Nothing to worry about.

Wait what!

You changed your mind again?!

No, no.

Before my budget crisis I had a PT 5558 on order. Shit happened and I ended up selling my 6boobs etc and went factory low mount with the SS1PU.

Nothing has changed, motor is mostly assembled (turbo attached now). Just need a new sump pan (mines rooted), rear main seal and ancillary water hoses then I'm bolting it in. Have taken a few pretty photos so once I get closer to results time I will make a thread of some sort. I prefer to lay low when I can and preserve identity but I do want to share the SS1PU SR experience.

GTScotT Grand Master

GTScotT

Posted
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I know there have been some failures in the past, but im sure thats old news.

In general JB's have a longer lifespan than BB's and are overall not as delicate.

The main thing I dont like about the PT BBs is that they arent water cooled. IMHO BB's should always be water cooled, too delicate to not.

GTScotT Grand Master

GTScotT

Posted
Posted

water cooling is to take heat away from the turbo, which is oil lubricated and cooled also. remembering the turbo gets hundred of degrees going through the back side which is bolted directly to the CHRA you want to get as much heat away from the rotating assembly as possible.

GTScotT Grand Master

GTScotT

Posted
Posted

Admittedly I do not follow the supra forums and PJ you already know I've never used a JB PT. Dunno whats to be proven here, but you guys win already.

I did plenty of reading myself when I was going to buy one and found plenty of posts like this saying 'get the BB' but hardly anyone actually having one fail in the past 3 years - I could be ignorant and not reading the right places so who knows. I'll just keep my mouth shut in future, no use trying to help people and share what you think you know when others are only going to shoot you down.

Yay ball bearing party, lets all dance and clap.

jet_r31 Mentor

jet_r31

Posted
Posted

Theres been heaps of failures in last 3 yrs...people have been reporting them as being worse as far as i can see

The GFC may have forced there quality control to be not as good as it was...

people aren't shooting you down..no need for knicker nottage..lol, its just you said " you are sure its old news"...i mean

you can't be sure at all? i'd never ever ever buy one, now or in the last 10 yrs

cheers

darren

tricstar Mentor

tricstar

Posted
Posted (edited)
Isn't water cooling only for the cool down after engine shut down? If you have a turbo timer or let your car idle after a drive then I'm sure it'll be fine

after many discussions with my turbo guy, that was my understanding also...

Be interesting to see how these oil only Precisions last,, should be fine if shut down correctly..

I like the V-Band turbo/manifold idea too, should take care of any gasket issues. watching this thread with interest

Edited by tricstar

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