turbo size chart (borrowed from nasioc)

[amicheze]

tjamz wrote:
T72 920 CFM at 14.7 PSI <-- Note you would have to spin a 2.0 L engine at about 14,000 rpm to flow this much air.

shit.. there goes that idea...

[Guest]

nah, just build it to F1 standards and you'll be fine

[theoblivious]

ok so what im understanding is that these turbos work ideally at these certain cubic feet per minute? Cubic feet per minute thats what a CFM is right?

[PSI2HI]

Where did they come up w/ these figures? They seem pretty a little off if you ask me. There are so many variances in each turbo. You pick up about 40cfm alone going from a E cover to a S cover.

[Guest]

im pretty sure its just an estimate

[Guest]

according to the poster on Nasioc, they were compiled using information gathered from the manufacturers tech sheets.

[integra_gsr98]

I'd be willing to disprove those T72 numbers as well. If I decide to change anything this winter, I think a PT71GTQ might be in order. Seems to be the sweet spot turbo for all of the street car Hondas.

I know of one Honda running Dave's turbo too, and from what I read he seems to be happy.

[Sweet-WRX-Lovin]

How much of a difference though does it make using NOS to spool up the big turbas? Just curious.

[DaveH]

It helps a lot, depending on the size of the shot of course. Without nitrous it takes me about 5 seconds to spool at the line. With nitrous it takes less than a half of a second.

Sweet-WRX-Lovin wrote:
How much of a difference though does it make using NOS to spool up the big turbas? Just curious.

[Sweet-WRX-Lovin]

Ok wow, that's a huge difference. Thx Dave. Now I know, and knowing is half the battle...... yo joe bitches!

[Guest]

So a small 16g flows better than a large 16g at 22 psi? It really doesn't matter as it will be out by the end of the year anyways.

[Guest]

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