How far is 42# injectors generally good for?

**02SilvermistGTP** · 06-12-2018

How long do the 42# injectors usually take you say with a cam and e85 before you have to upgrade to 60#?

**GTPpower** · 06-12-2018

Usually around a 3.2 pulley is where they max.

**02SilvermistGTP** · 06-12-2018

Originally Posted by GTPpower

Usually around a 3.2 pulley is where they max.

Ah might as well buy some 60#s then, I was hoping it'd somehow get me down to 2.8 on the gen3

**GTPpower** · 06-12-2018

Yeah, you should be running 60's at that level.

**Scottydoggs** · 06-12-2018

42's would work if your on gas only. mine run at 70% so add 30% more to them and maxed out. 60's for sure.

**SgtMarshal** · 06-12-2018

I'm at 90% duty cycle on 42's with E85, but my elevation is 7000 feet, so I don't need near as much fuel as people at sea level. I would go with 60's.

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