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Old 06-07-2008, 12:18 PM   #1
Scooby Specialist
Member#: 49998
Join Date: Dec 2003
Chapter/Region: RMIC
2017 WRX MT6

Default TD04-19T questions.

Alright, sorry for creating a thread on this if it has already been addressed, but my search came up bingo for information, and FP hasn't responded to my email about it, so I will probe Nasioc for info on this...

I was thinking about the best turbo for what I want in a car; primarily lightning fast spool with more top end than the current TD04L. I thought about the TD05-16G, but it seems to come on to full boil about 500-800rpm later than the TD04.

So I am thinking that my eventual turbo upgrade could possibly be a "monster" ported TD04 with the 19T CHRA, but I am wondering: Does the 19T compressor wheel have much if any impact on spool characteristics, and does it in fact flow enough more up top to be worth it? I'm afraid I'm having a hard time finding info about this, hence my questions.

I guess another option is the TD04-15G; if anyone has info on that and can explain why it is different or possibly better/worse than the 19T, please let me know.

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