Hi,

 

im thinking about upgrading my Z. Running 0,9 bar now.

 

The mods I like to make will bring +450hp but less than 500.

 

I already have a K&N dualintake at home, but now I read that it

makes the car running "less smooth" and I think I don´t like that...

 

Have already a K&N cone Filter mounted.

 

Do I need a dualintake when running aroun 1,2 - 1,3 bar boost?

Sorry, don´t know it in psi...

 

Thanks, Patrick

You can make the turbine spin as fast as you like but it won't flow any more air on standard turbo's :confused:

There is NO WAY you will get 450RWHP from standard turbo's, even if the impellors were changed, never mind just the bearings!

If it was as simple as changing the bearings then everyone with rebuilt turbo's would be running 500bhp :rofl:

If it doesn´t work, why do I know 2 Z-owners who have this setup?

Rebuilding is not the thing, this are SPECIAL bearings. Stands all above...

I never said, it´s just rebuilding the turbos...

Standard bearing makes the turbines not run higher than about 1 - 1,1

bar pressure, cause of to much friction. The racing bearing generates less

friction (just the same thing as a ballpointbearing).

 

Spining faster will generate more turbulance and turbulance=heat. Which will transfere to the air it is trying to Compress and compression=heat. The more you compress the air the more heat you inject into it. The more heat generated into the air the more it expands so in effect you end up delivering less oxigen into the combustion chamber= less efficient combustion =less power and high running temps. Even the Yanks say you can only get 450bhp out of standard turbines.

 

You would defo need bigger impellors to make the gains your talking about and BB turbo bearings.

 

 

http://cgi.ebay.com/ebaymotors/Nissan-300zx-Fairlady-Z-Dual-Intake-system-K-N-Filter_W0QQcmdZViewItemQQcategoryZ38634QQihZ016QQitemZ260217447358QQrdZ1QQsspagenameZWDVW

 

This is the intakesys which I already own.

 

They're the Johnny's. Yep defo do the job IMO better than the Doolz.

 

Good luck, but before you go that rout on your turbos I'd be wanting to see Dynographs of the said cars to see what they really are delivering in everyday conditions. Also remember that You'll be driving with serious altitude changes in Austria so you'll need to detune slightly from optimum to avoid pinking & Det

 

I'd still be looking at JWT 530BB's or Z1 GT600R's http://www.z1motorsport.com

 

and remember their optimum figures are quote as when run on race fuel and every supporting mod required.

If it doesn´t work, why do I know 2 Z-owners who have this setup?

Rebuilding is not the thing, this are SPECIAL bearings. Stands all above...

I never said, it´s just rebuilding the turbos...

 

 

Everyone meet the inventor of these "Special" bearings.

 

 

 

 

 

Sorry dude you WILL NOT got 450BHP even at the engine with stock turbos, even with your special bearings.

LOL! you dont need special bearings, just disconnect the wastegate pipe! :rofl: