Quote:
Originally Posted by jlaudio11
Did you play with the 180 injection window? Do you have any power comparison to maybe a similar thp port setup that you would be willing to share?
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Yes I played with the window but basically ended up extending it slightly. It's sort of an easy button to lean on the DI more or less but with limits. There is no power difference compared to 2HPSI from a functionality standpoint. The only difference in power is how much you lean on port vs DI. Port Injection will always make less power vs DI is all else is equal. But the overhead of having port will let you push the power further.
Quote:
Originally Posted by SOCAL.M6.ZLE
Thats awesome... I know it's early to ask but how does this compare to THPSI?
Justin White seems to prefer the THPSI set up based on the level of control... Sorry im not a tuner  |
I've tuned both. The advantage of the 2HPSI is that you have more control over when the port system kicks in. In some setups this is an advantage but not always. On the ATLAS side, its almost like an easy button. I do wish it had some more granular ability to activate port when you want, but its not really an issue. You just have to play with the tune a bit.
Basically 2HPSI triggers via MAF and ATLAS triggers by SOI. Both have real time correction capability. Overall it took less time to dial in the ATLAS setup vs the 2HPSI, especially if you're not an experienced tuner. A novice could do the ATLAS on their own. But you have to be advanced to do the 2HPSI.
I would pick the ATLAS setup 8 out of 10 times for the stuff I tune. Other tuners may tune things that don't match up with me and have different opinions. I have a couple of setups where I find prefer the 2HPSI because I can start the injection earlier and a couple other things but those are specific cases. It's more the capability/flexibility of the Reflex controller at that point.
Dave @ DSX and Team did a great job on the Atlas platform and if you're looking to run full E on your LT4 street setup, you won't be disappointed.