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PFC Lift engagement??

887 Views 5 Replies 4 Participants Last post by  learning
i'm about to get my car tuned (at a shop), I was wondering if you guys had a recommendation of when I should have lift VVTL-i high and low?
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I don't know about tuning, but maybe when vvt-i starts hitting hardest, say around 4k or 4.5k rpm with a smooth transition, unlike the stock engagement around 6k where the power drops before lift...
learning said:
i'm about to get my car tuned (at a shop), I was wondering if you guys had a recommendation of when I should have lift VVTL-i high and low?
Look for a relevant sticky under ECU tuning ;)
I'm not sure if a supercharged VVT map would look very different from an N/A map, but I would say an N/A map would be a good place to start. Try this:
Torqued said:
Here is a suggestion:
VVT: 43 at 5625 RPM
VVT: 3 at 5675 RPM
Lift: 5700 RPM
VVT 4 at 5800 RPM
Set VVTL High = 5700
Set VVTL Low = 5500

You're going to have to build your map around these rpm breakpoints. I am going to incorporating these on my next gen N/A basemap but I would set up the rpm breakpoints as follows:

850
1250
1700
2150
2600
3050
3500
3950
4400
4850
5300
5625
5675
5800
6250
6700
7150
7600
8050
8500

That should get you started and give you good rpm breakpoints and a good VVL transition. From there you're going to have to figure out good load breakpoints and build out the rest of your VVT map from the points in the center. I would suggest using my Basemap 13 as a starting point.
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Jesse IL said:
I'm not sure if a supercharged VVT map would look very different from an N/A map, but I would say an N/A map would be a good place to start.
I should look somewhat different -- Lotus was able to drop it to around 4K for their S/C'd Elise :AF:
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