SteveR Posted January 3, 2006 Share Posted January 3, 2006 I know this is going to be a stupid question to most if not all of you, but wtf does the number refer to? Is it the size in mm of the diameter of the turbo or something? Is it a standard measurement that is used across all makes? I know bigger number = bigger turbo (and usually more lag) but what exactly does it mean? Also, if it is possible to compare, what 'T number's are the stock turbos? What are the common 'T' turbos used and what sort of application does each have? TIA people Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 3, 2006 Share Posted January 3, 2006 No its tricky. PTE use the inducer ( front of the compressor wheel) so a T61 have a 61mm inducer and so on. Most other use the exducer ( rear of the compressor wheel) so a T78 has an inducer nearer to a T66 from PTE. Then that is only half the story, next you get onto exhaust trims and AR's............... Quote Link to comment Share on other sites More sharing options...
SteveR Posted January 3, 2006 Author Share Posted January 3, 2006 argh! Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 3, 2006 Share Posted January 3, 2006 If you are ever stuck mate PM me Quote Link to comment Share on other sites More sharing options...
caliAl Posted January 4, 2006 Share Posted January 4, 2006 So what's a T51R then?? I thought these turbos were massive? Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 4, 2006 Share Posted January 4, 2006 HKS are a law unto themselves( pays them to use odd #). The T51R is a biggy. Its very similar to a Garrett GT42R, so probably around a 76mm inducer. Quote Link to comment Share on other sites More sharing options...
Alex Posted January 4, 2006 Share Posted January 4, 2006 HKS are just wierd.... No idea what the 51 refers to but yeah they are large turbo's. There are 4 T51R's T51R KAI T51R KAI BB T51R SPL T51R SPL BB The KAI version is slightly smaller and probably is equivilent to a Greddy T88-34D. The SPL version is the daddy and is probably equivilent to the GReddy T88H-38D (That's in power production terms..not necessarily actualy compressor and turbine size.) Quote Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 4, 2006 Share Posted January 4, 2006 the KAI is probably a modified GT42R with the 71mm inducer. That range is deffo based on the GT42R Quote Link to comment Share on other sites More sharing options...
Alex Posted January 4, 2006 Share Posted January 4, 2006 the KAI is probably a modified GT42R with the 71mm inducer. That range is deffo based on the GT42R Okey Cokey Glad someone knows! Quote Link to comment Share on other sites More sharing options...
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