soros151

I don't have expirience with that kind of power level, so I'm just going direct u to the Injectoir Size Calculator so u can inquire in to that question.

RC Calculator

By little calculations and seeing normal setups here in SL and normal Injector Sizes. I think the most used injector is the Supercharger ones, which I think are 440cc. I have never seen an N/A setup over the 200whp here in SL so I can't assure u of anything.

soros151

Okay I got a better formula to see what gains could be get from increasing compression. This is a general rule of thumb formula, so it's mostly universal in a perfect world. So this may vary, but is a good way to know what to expect.

Let's say you have just achieve 160whp with bolt-ons. Okay now get the 3% of that 160whp....=4.8
Why 3%? Well, the numbers are suppose to be from 3-4% in a perfect world. I used 3% for minimun gains in a flawless

Now we are increasing the compression ratio from 9.6:1 to 11.5:1. Complete Point Increase is of:
11.5-9.6=1.9 complete compression point.

Now take that 3%(4.8 ) and multiply it by complete point of compression (1.9)=9.12hp

So the gains would be from: 9.12 to 12.16hp.

Enjoy the info.

Keeshwah

Stock injectors should be fine unless you do some serious head work. For just 11.5 compression pistons you won't be increasing the HP enough to justify the new injectors. I'm not a mechanic but say you have a full exhaust w/ the MMW headers, and an Injen intake you'd gain 30whp maybe?? That for sure requires no new injectors and I'm sure another 10hp is not going to put you over the capacity of stock injectors. You might be looking at needing new injectors if you do full I/H/E and get the ZPI Stage 2 head and eManage with 11.5 compression pistons. But that's just speculation.

soros151

Stock injectors should be good (80% duty cycle) until at least, in theory, all the way up to 210whp.