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Does anyone know the maximum duty cycle the stock injectors on a stock 5M sees?
 

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Isn't the maximum duty cycle for an injector pretty much the same all around... 80% I think I read in "Maximum Boost"?

If you want I'll look for you, Bob. Just PM me.
 

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The ideal maximum is 80%, but the actual maximum depends on the size of the injector and fuel requirements of the engine. I'd be surprised if a stock Toyota setup saw any more than 80% though.
 

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Well his questions was what was the max a stock supra injectors sees, and I cant imagine any stock injectors for the proper car going anywhere over 70% ever...
 

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I have a dual gauge that monitors both AF ratio and injector duty cycle... As I was pushing the car up a long hill one time at 100+ mph, I *swear* I saw the duty cycle hit 100% for a few seconds. Of course, I didn't really have time to study the meter with all of my attention.

These were the original 182cc injectors (not my 295cc beasts) but *not* on a stock Supra - I had full intake and exhaust mods at the time.
 
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