T28 BB Skyline Turbo

Post by **revlimitlaunch** » Wed Feb 21, 2007 11:23 am

ok so i need some help. may be buying this turbo off a kid parting the turboes off his rb26dett. what are the turbo fins made of? i've heard ceramic and i've also heard forged steel. and has anyone heard of these blades shattering at random rpm's?? im pretty much just trying to clear things up so i can get a little project i'd like to do underway. thanks!

Post by **revlimitlaunch** » Wed Feb 21, 2007 11:42 am

what are the fins made of on the t28's out of the rb26?

Post by **Sil240** » Wed Feb 21, 2007 12:10 pm

The wheels are ceramic.DON"t go over 1 bar!!!!!

If you want a stock turbo to upgrade to, go for the S15 BB T28There like $500 or something

Post by **Joe** » Wed Feb 21, 2007 12:32 pm

the exhaust wheel is ceramic, intake is steel

Post by **Sil240** » Wed Feb 21, 2007 12:37 pm

Kamin wrote:the exhaust wheel is ceramic, intake is steel

OH really???What about the RB20 and RB25 turbos??Is it the same??I haven't checked.

Post by **DJButton** » Wed Feb 21, 2007 2:34 pm

Ceramic turbos FTL! Actually for a total newb question since I haven't searched this, what about a S15 T28 on an RB20, I should be ready for an upgrade this summer. Do I need to get a custom exhaust manifold or is the bolt pattern and size the same on the S15 BB T28's? Thanks in advance if someone feels like answering that.

revlimitlaunch you hang out on the NEMotorsports forums? I see you have a NH location, and I know someone on NE has the same name. Hit me up on AIM sometime- jdmcarsalltheway ~Dan

EDIT: I was under the impression that both wheels on the 20 and 25 turbos were made of ceramic, correct me if I'm wrong.

Post by **mp3moose** » Wed Feb 21, 2007 2:37 pm

They are ceramic. They are good for about .9 bar of boost before they will shred and eat your motor. N1 turbo's are steel though. Putting these on your mazdaspeed? ( I have an mp3 so I am a mazda geek.)

Post by **revlimitlaunch** » Wed Feb 21, 2007 4:02 pm

lol well not my 6, but my girl has a mazdaspeed protege and i know the t28 will bolt up to the t25 flange on the mani. i just hope i can alignment right up and good and get things on there smoothly. i plan on tuning it at 9psi or so, maybe 11 on race gas but so as long as i dont go over that i guess it should be good!

is there any internal upgrades to those turboes? (i.e. different wheel sizes and material)

Post by **revlimitlaunch** » Wed Feb 21, 2007 4:04 pm

DJButton wrote:revlimitlaunch you hang out on the NEMotorsports forums? I see you have a NH location, and I know someone on NE has the same name. Hit me up on AIM sometime- jdmcarsalltheway ~Dan

yes sir i am on there ill see ya on aim sometime definitley.

Post by **revlimitlaunch** » Wed Feb 21, 2007 4:06 pm

Kamin wrote:the exhaust wheel is ceramic, intake is steel

well i don't plan on going past 9-11psi at most (swapping teeney t25 out of a mazdaspeed protege with the t28 in its place. but knowing the exhaust wheel is the ceramic one makes me feel better i guess haha.

Post by **Gold Digger** » Wed Feb 21, 2007 4:22 pm

revlimitlaunch,

Please do not double post the same thing in two forums. I have merged your two threads to this forum as it will get more traffic.

As for the 20/25 turbos, all of the the 20 turbos are ceramic exhaust wheels. The early model R33 25 turbos are ceramic, the Kouki R33 turbos are steel.

Post by **wawazat8402** » Wed Feb 21, 2007 5:01 pm

C33LaurelRacer wrote:The early model R33 25 turbos are ceramic, the Kouki R33 turbos are steel.

Kouki not necessarily meaning series 2 correct?

Post by **Gold Digger** » Wed Feb 21, 2007 5:10 pm

wawazat8402 wrote:
Kouki not necessarily meaning series 2 correct?

Not sure. I was talking to a Japanese friend of mine, and told him of my plans in the future to using an RB25 turbo. He said to get a Kouki turbine as they are steel wheels.

Post by **cdorhout** » Thu Feb 22, 2007 5:20 am

C33LaurelRacer wrote:He said to get a Kouki turbine as they are steel wheels.

I'm pretty sure that is false. I have two RB25 turbos at home. One is a SI RB25, and the other is a SII R33 RB25. And they both have ceramic turbine wheels.Also, I don't think any turbo has ceramic compressor wheels. They made them ceramic to withstand the high heat of the exhaust. That's not necessary on the compressor side.

Post by **Darius** » Thu Feb 22, 2007 5:34 am

The stock RB25 turbo only has a ceramic exhaust wheel. The compressor wheel is steel like Kamin and cdorhout said.

Post by **revlimitlaunch** » Thu Feb 22, 2007 3:34 pm

uh so, my question was on the rb26 turboes, none other than that...

Post by **klh6686** » Thu Feb 22, 2007 4:49 pm

The only Steel wheeled skyline turbos are rb26 N1, all others are ceramic. If for some reason somebody has a stock turbo that is steel wheeled it is not stock.

Post by **Evo_bill** » Sat Feb 24, 2007 6:05 am

omg He's referring to my post LOL http://www.nemotorsport.com/bo...t3707

I'm asking only 150.00 for these turbos lol kid makes it sound like I'm trying to rip him off

you know, revlimitlaunch you could have just ask me....

Post by **DJButton** » Sun Feb 25, 2007 1:45 pm

Well I'll ask you, looks by the thread on NEM that a couple people already want them, Better then my RB20's stocker though eh? I'd like to check em out if you haven't sold one I think you can put my name on it. I would kinda just like to have one around either that or put it on my engine while it's out of the car. Anyhow I know this isn't the place to be discussing this but give me an email anyway if you could [email protected] thanks man. Also I'd love to check out your progress sometime.