Whats All Them Numbers Mean?

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Canuck 93 Civic Si

Senior Member
Im obviously new to the turbo world and one question i havnt been able to get answered is, what all the numbers and letter associated with turbos mean? For example TD05, TE04H :blink: . Ive got a bit of an idea on how T3 and T4 etc relates to the size but what does this have to do with the above mentioned numbers?

Thanks Sean
TD05 nad TE04H are just ways for the manufacturer to identify what car its for or came out of it doesnt mean nething special tho TDO5=T25 basically and im not sure about the other one....sorry ..hope i have answered your question ...later ~mike~