so today i ran a 15.1 @ 90mph with 2.2 60ft

i have a 95 maxima vq30 cattman intake/headers/exhaust,mevi w/summit switch@5000rpm open and kyb agx and progess springs ran 245-45-17 with 555r@24psi and weather was about 90 today in arizona

what esle can i do to her and to make my times better and is that a good that i ran time?

 

Transmission type please.

 

were you racing at firebird?

 

i'm a manal trans.


and i was at speedworld but i need to go to firebird sometime never have gone there
i hear its a better track

 

what is this summit switch@ 5000 you speak of?

15.1 seems a little high for those mods. i have a 97 5spd with headers and intake and i'm running lowish 14.s

 

The switch is to activate his mevi.

Those times do seem low for your mods. Are you racing at a high elevation?

 

elevation is about 1300 feet i think but i know i'm throwin a egr code also and cant figure that out

 

That's a pretty low trap speed for those mods. Sure your MEVI is opening? I've run mid-high 14s (depending on temps) with similar mods & 60's, but no headers.

 

DA was 3400' at the worst part of the day. That's not very good. Still, your times are a bit slower than I'd expect in those conditions with your mods. I'd expect more like 14.7 or something for post drivers in those conditions, 14.3 or so in good weather conditions.

This isn't a total explanation for that, but you need to change your RPM switch to 5200-5300. That's the optimal switch point for an MEVI. Also if you aren't already, look into a JWT ECU or Emanage Ultimate, either of those mods will make a VAST improvement for you, probably the biggest single improvement you'll see given that you've already got all the other high end breathing mods, but you don't have the ability to rev it out.

 

set the switch to 52-5300 or have it open it there so the tach says 52-5300 and was thinking about the jwt ecu but dont know if i would want to spend the money and hopefully i get my nx kit in soon

 

you want to open the MEVI at 5200-5300. set the settings on the switch to whatever it takes to make it open there. i think mine was set to 3200 or 3300.

 

ok thank you nealoc187

 

when this switch opens what exactly is going on? i don't really understand the variable intake thing.....

 

it opens the butterflys in the runners of the upper intake manifold