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Come On In Turbo Geeks

Roy

By Roy,
in Engines & Forced Induction

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rb26s13 Mentor

rb26s13

Posted
Posted

specs of the ARMS B7660 look similar to the 2860-5's however have a smaller comp housing...

ARMS B7655 look similar to -7's but again smaller comp housing from memory.. cant be bothered looking into more details at moment.. will do tomorrow if someone doesnt answer it properly before than

discopotato03 Grand Master

discopotato03

Posted
Posted

Interesting , it looks to me like they ARE Garrett turbos - or cartridges anyway .

How they look to me .

1) 60mm 55T compressor , probably same cartridge as GT2530 but with 55 rather than 63 trim compressor wheel .

2) 60mm 60T compressor , as above but 60T - possibly same cartridges as used in SR20 spec HKS "GT-SS" .

3) 76.2mm 46T - Hmm sounds like the T04E wheel from the HKS GT2540 . Turbine spec looks like the cropped (56.5mm) GT30 turbine found in some HKS spec GT2835 cartridges .

Not based on experience but I think the best most responsive cost effective turbo upgrade for RB26's is the -9 version of the Garrett GT25/28BB range . This IS a HKS GTSS without the HKS actuator .

For a bit more without too much turbine lag 2530's or equiv .

You get into a grey area after that because you either opt for more compressor ie GT2871's (IE GTRS) or larger turbines (IE GT2835's) .

Cheers A .

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