Bill

I'm attempting to figure out what Turbo I want to use on my 22RTE build. I've got my hands on bunch of different compressor maps, and I've learnt how to read them: however, I'm having trouble with the Airflow aspect of it.

I havn't been able to find consistent results from formulas I've found. I've found 2 or 3 different formulas for calculating airflow at various RPM's, but they all seem to be giving me different results.

So, can someone out there in Yotatech land please inform me of the Volumetric flow rate(stock is fine) of a 22RTE(even 22RE) at various RPMs. Or even better, provide me with a confirmed formula to calculate airflow in lbs/min?

Thanks

Napoleon047

some quick calcs, correct me if im wrong:

a 22re has a 92 mm bore and an 89 mm stroke

so it has 591.33 cm volume per cylinder = 2365 displacement

every rotation of the engine, 2 cylinders take in air so it takes 2 rotations for all 4 cylinders to suck in 2365 cc's of air

so at 1000 rpms it sucks in 500x2365cc = 1182500 cc's of air in that minute, so 41.7 CFM

Bill

hmm, I'll need to calculate boost into that, but it may be a method that'll work, as "crude" as it may be. thanks

^VooDoo^

Hope you find this formula out, Later I need somone to ask those same things....., LOL

1989toy4wd

Go to greddy website and look at the T88H, the biggest turbo they make....lol you would have little low end power, but once it spools up...the tires will be screeching!!

But seriously, I have heard of people using the T3/T4 hybrid turbos with good luck, just dont reuse the stock one!!

Bill

Well, after doing some poking around on Garrett's website, I found the math that they reccomend. the way I figure, if these guys don't have the correct formula, no one will

Garretts Turbo Math

I'll just need to figure out some of the variables, air/fuel ratio, fuel consumption, intake temp, etc. But at least it's a good base