Quote:
Originally posted by JasonAndreas
I'm curious why is that people don't individually map their 911s on the dyno and instead rely on a generic chip?
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That's what I did.
It took/cost two hours on the Dyno and another $15 for the chip.
For $450 I had a custom chip made specifically for my engine and fuel.
Location the Dyno Shop in El Cajon Ca.
Click here for a more info on my day at the wheel dyno.
Note the Air Fuel Ratio on the Dyno chart.
If you get an A/T chip you are stuck with what you get.
No remapping the chip. You should still put it on a wheel dyno to sure you don't have a lean condition.
If it's conservative and rich, then if the AFR were optimized you could have 10hp or more left in your engine.
S/W allows you to custom tailor your chip specifically to your engine, the process is time consuming and perhaps more expensive.
If you go for Steve's custom chip I think you could achieve the same results I did.
It isnt going to happen in two hours and it may cost more than $450.
If you want a custom S/W chip this is the process as I understand it.
1. Install SW chip $$.
2. Go to wheel dyno $.
3. Send results and chip back to SW.
4. S/W re-maps your chip and returns chip to you.
5. Go to wheel dyno $.
6. Is it optimized? Or do you repeat #3 through #5.
If you live in an area where the dyno operator can not write a chip for your 911 then this is a great way to get a perfect chip.
The red lines (Peak 306 hp) are the results from a chip made in 2 hours at the Dyno Shop in El Cajon Ca.
The blues lines are the results from a copied chip I had of unknown origin.