Precision Billet Turbos

[Hanaldo]

Get rid of existing and get braided from the turbo to the block. Personally I would get something custom made from somewhere like Enzed (well actually I make my own lines using Speedflow gear, but I assume you're not game to try that?). But plenty of people on here seem to be using the Kando lines with no problems.

[PJ.]

FYI both 6262 and 6266 are rated as 700HP items. I'd be chasing that 66 CEA item, better tech is where its at.

The 6262 is 700hp and 6266 is 735hp.

Don't be fooled by the CEA crap, the wheel sizes have an influence over response, and the 6262 is more responsive.

[GTScotT]

It might be that the 62mm wheel is more responsive, but by how much? You can see that the CEA wheel has better blade design and would be an overall lighter rotating assembly. Im also confident the 66mm wheel would flow a metric shit load more.

If you were going 3L down the track I can see that the 66 mil would make for an intensely fast car.. but yeah I can accept 4mm in turbine exducer isn't anything to scoff at.

[rondofj]

Thanks hanaldo, I will look at the lines a bit, sorry for the spam on the Precision thread but did you end up re-tuning your G3 again/ killawasps?

Edited September 24, 2012 by rondofj

[SimonR32]

It might be that the 62mm wheel is more responsive, but by how much?

Exactly, how much response would I be losing for the 30hp?

[PJ.]

That depends on your combo, on mine the 65 and 66mm made a noticeable difference on the dyno.

[SimonR32]

Stock RB26 with drop in cams...

[GTScotT]

PJ did you ever run a 62 base turbine?

[SilverECR33]

the new 6262 is CEA also.

[PJ.]

On my car I have had a 6265, 6765,6766 and 7175. I have witnessed a 150rpm difference between a 6262 and 6265, hardly noticable, but there was also a couple of hundred revs between the 65 and 66 turbine wheels on my own car.

Yes it picked up 30hp atw but the point I was trying to make was, PTE marketed the same if not better response between the CEA wheel replacement wheels of the 65. Maybe that is the case with identical sized wheels, but from my experience not a bigger CEA vs smaller wheel. You can physically see the difference in the thickness of the older wheels.

[Piggaz]

On my car I have had a 6265, 6765,6766 and 7175. I have witnessed a 150rpm difference between a 6262 and 6265, hardly noticable, but there was also a couple of hundred revs between the 65 and 66 turbine wheels on my own car.

Yes it picked up 30hp atw but the point I was trying to make was, PTE marketed the same if not better response between the CEA wheel replacement wheels of the 65. Maybe that is the case with identical sized wheels, but from my experience not a bigger CEA vs smaller wheel. You can physically see the difference in the thickness of the older wheels.

It's funny that a 3 mm larger wheel with a 62 mm front was only 150 but 1 extra mm on a 67 was alot more noticable. Hmm.

[PJ.]

62 vs 65 was on a 2.6

It's actually 1.5mm, the "65" measures 64.5mm. Noticeable on the dyno, not so much on the road,

Don't panic, you're 6466 will be fine

Edited September 24, 2012 by PJ.

[GTScotT]

got to remember that its 1mm on the exducer but they dont tell us what they have changed on the inducer. Could be a way larger wheel in a smaller trim... or could be a smaller wheel in a larger trim. Who knows..

PJ did you ever dismantle yours to measure the inducer on the turbine side? I have always wondered why PT dont farking advertise those figures. With the smaller stuff I had a feeling they kept it to themselves because the numbers would match up to older tech T3/T4 based things. Bad for business when your marketing 'new tech'. Obviously we know overall measurements are not the be all and end all, but it would certainly raise the question.

[PJ.]

Yes we did, and you could be onto something there either way they worked and worked well!

It would be interesting to back to back a CEA of the same size, but after spending 10 grand of my own money on Precision turbo's, I might leave it for one of you boys to step up

[SimonR32]

Very interesting...

So I'm down to either the 6262 or go a 6266 and gain around 30hp at the loss of a few hundred rpm?!?

Edited September 25, 2012 by SimonR32

[PJ.]

That's what happened in my case

[33GTRV]

6466 and 500, do it!

[Piggaz]

That's what happened in my case

Now that 150 RPM. might not be as much as Simon will have an extra 560 odd CC. Maybe?

[SimonR32]

Now that 150 RPM. might not be as much as Simon will have an extra 560 odd CC. Maybe?

He mentioned that the 150rpm between a 62 and 65 was on a 2600cc car...

PJ do you remember if that comparison was with a 62 CEA?

[Piggaz]

He mentioned that the 150rpm between a 62 and 65 was on a 2600cc car...

PJ do you remember if that comparison was with a 62 CEA?

Ah. Oops. My mistake!