T28 ball bearing turbo?

Is the standard t28 in the gti-r a rollerbearing turbo? im convinced its a journal bearing but someone else says its roller?

N14 GTi-R (1990-94) T28:
Compressor: T3 Super-60, 60 trim 60mm 0.60 A/R BCI-1 compressor.
Turbine: T-25, 79 trim 53.8mm 0.86 A/R turbine housing, Inconel Turbine Wheel.
Stock Boost: 7 psi
Safe Boost: > 13-15 psi After that The Turbo is past it's efficiency
Max Boost: 17 psi
HP Ratings: 290 - 300 RWHP
Type of Bearings: Journal Bearing
Upgrades: Replace compressor Housing w/ S14 T28 and Max RWHP can be bumped upto 320

Guy refers to the T28r as being rollerbearing turbo?

Sure standard isn't roller

Yeah i searched around and everywhere say its not

Standard isnt roller bearing.
The hybrid ones are roller bearing.

yeah thought so, thanks

some hybrids are just 360° journal thrust rather than standard which is 270° journal bearing.

Probably had it rebuilt

No t25 is roller bearing
You can get a conversion done which is ball bearing from Owens development

yup the gti-r is a high flow turbo according to some source? i guess thats what the "T3 Super-60" means?

Yeah was gonna say I can confirm 100% the stock t28 isn't a roll bearing turbo, still we have an easier time than the skyline boys with their ceramic turbos they like to shit themselves on a regular basis haha!

Digitalfaze wrote:
Guy refers to the T28r as being rollerbearing turbo?

I think that t28r it's standard s15 silvia turbo and this is roller bearing job and apparently it's not bad turbo

No t Series turbo is ball bearing it's only the gt series that are ball bearing the t series are Journal bearing only

Hmm i thought that r on the end was for ball bearings ah well you learn something every day