T51r's

[GTR 94]

any body able to tell me how to tell the difference between a T51r that is Ball bearing and the ones that are not ........

thank you lee

[joe blo]

the r after the numbers usually means ball bearing. i think its roller or something. u can get gt35 plain bearing and gt35r roller beraring. so i think the t51r would be ball bearing. could b wrong but

[shanef]

it'll be on the ID tag on the front of the turbo, i.e KAI, or KAI BB where the BB means its ball bearing

[GTR 94]

hmm ok same as the spl's then hey bb or just plain spl. what about the colours of the badge? spl purple or spl gold, also kai green???? i do understand that the spl is 1000hp and kai is 800.

might sound like newby questions but im looking everywhere and no answers, so all input is great

thank you

[blk180]

Colours are for picking the differnce Green = Kai BB, think purple PB and gold BB. Dont know what differnce it really makes as they are big turbos.

[NXTIME]

T51R KAI has a green plate on the compressor that says "KAI" and has a silver bullet nut on the compressor.

T51 KAI BB has a green plate on the compressor that says "KAI BB" and has a green bullet nut on the compressor.

T51 SPL has a purpl plate on the compressor that says "SPL" and has a purple bullet nut on the compressor.

T51 SPL BB has a gold plate on the compressor that says "SPL BB" and has a gold bullet nut on the compressor.

Apart from that, check the centre bearing ID tag

[discopotato03]

Most Garrett GT BB cartridges have water cooling holes . If you spin the rotating assembly I think you'll pretty soon tell if its ball bearing . Also I'd look inside the oil drain hole to see if you can see the stationary cylindrical steel section of the bearing cartridge if it has one . Lastly the GT BB's just about always have an internally threaded inlet oil restrictor .

I have on a PC pics of a bush bearing KAI's ID tag so will have to get back in a few days on that one .

O/T I know but if looking to buy something do some searches on Garretts GT4094R because OS there are claims of ~ 900 Hp from that one in twin scroll (split pulse) form .

Essentially the difference between a T51R KAI BB and a GT4294R (cartridge wise) is the turbine , 76T T51 conventional and 84T GT42 UHP . Garretts GT4088R is snapping at the heels of both with its 78T GT40 UHP turbine and in twin scroll form arguably better than the HKS T51 / single scroll pair . The GT4094R is outline identical to a GT4088R and in fact all thats changed is the compressor .

Geoff Raicer is the one to talk to about these things .

Cheers A .

[GTR 94]

Most Garrett GT BB cartridges have water cooling holes . If you spin the rotating assembly I think you'll pretty soon tell if its ball bearing . Also I'd look inside the oil drain hole to see if you can see the stationary cylindrical steel section of the bearing cartridge if it has one . Lastly the GT BB's just about always have an internally threaded inlet oil restrictor .

I have on a PC pics of a bush bearing KAI's ID tag so will have to get back in a few days on that one .

O/T I know but if looking to buy something do some searches on Garretts GT4094R because OS there are claims of ~ 900 Hp from that one in twin scroll (split pulse) form .

Essentially the difference between a T51R KAI BB and a GT4294R (cartridge wise) is the turbine , 76T T51 conventional and 84T GT42 UHP . Garretts GT4088R is snapping at the heels of both with its 78T GT40 UHP turbine and in twin scroll form arguably better than the HKS T51 / single scroll pair . The GT4094R is outline identical to a GT4088R and in fact all thats changed is the compressor .

Geoff Raicer is the one to talk to about these things .

Cheers A .

thank you very much. this information helps emmensly.