Set summit to 3.2k, opens at 3.3k
Set summit to 3.2k, opens at 3.3k
i thought everybody said i need to set the summit switch at 2400-3200 for it to open where it needs, 4800-5100?? I set mine to 3200, the light went on at 3300 and i felt a slight power dip. Set it to 4000, light went on at 4100 and same thing, VI seemed like it opened. I have it set to 4800 right now and i'm pretty sure thats where it opens...so...is something wrong with my switch, or did i just not do enough research??? Very weird.
Probably not, but am i losing power somewhere? My power curve seems smooth, i dont feel the VI opening, but i dont feel a drop in power AT ALL after 5k, like i did with the USIM.
Probably not, but am i losing power somewhere? My power curve seems smooth, i dont feel the VI opening, but i dont feel a drop in power AT ALL after 5k, like i did with the USIM.
Originally Posted by NmexMAX
Get a dyno and confirm said powerloss.
The light comes on at 3.3k if i set it to 3.2k, is that right?
Rev up the engine slowly and have someone watch under you engine bay to see when it opens up. The summits used to be set up for V8 engines. Some of the other ones can be set for V8, V6, or I4 and then the rpm can be accurate. Summit may have just improved their design. If it opens at the right rpm then it doesn't matter what the rpm switch is set at.
Set it to 3k, had a friend rev up the engine while i looked at the rod, it opened at around 3k. Set it at 5k, it opened right around 5k. This was obviously done in neutral, read somewhere that its not accurate in neutral, but this clearly shows that the switch opens where i set it. I got it used, so its not a new design or anything.
Originally Posted by Kevlo911
So set it to w/e you want it to open at. I don't see the big deal here.
Originally Posted by NmexMAX
The light turns on when the actuator is activated.
I set my summit to 3200 and it opened @ 5200.
I set my summit to 3200 and it opened @ 5200.
Dynoing tomorrow (yes should do 2 runs 1open 1 closed BUT)...
I had my DIP switchs set at 3600-Openned5100rpm... now I have put it to 4200 it seems to open around 5500.
Did you set the '00 = ON even for 3200dip?
Real strange/concerning that for you its 3200... I wonder if the adjustable pot makes difference between switches.. mines not touched.
Originally Posted by 4x4Max
My power curve seems smooth, i dont feel the VI opening, but i dont feel a drop in power AT ALL after 5k, like i did with the USIM.
From what I recall I think you have something setup incorrectly. It's supposed to work at the RPM you set it up at. I remember when I first installed mine I had it installed incorrectly and it was opening at double the rpm. So if I set it at 2500rpms it would open at 5000 rpms. After some threads and searching I found on the org that I had something set incorrectly, I adjusted it and it worked fine. Now mind you this was like 2 years ago, so I don't remember exactly what it was but just search on here to find it. I think it was that the setting for the # of cylinders was supposed to be set at 4 instead of 6 or something like that.
In either case, if you can get yours to open where you want it one way or another you don't have to worry about it too much.
Lastly, you will notice that the tachometer isn't the most accurate measuring tool for rpm readings. Which is why you'll find that the RPM light comes on at one set RPM but on your tach it looks different because of inaccuracy. A good example of this is my friends maxima at redline looks like it's at 6900 rpms on his tach when it's really redlining at 6500 rpms (verified by emanage).
In either case, if you can get yours to open where you want it one way or another you don't have to worry about it too much.
Lastly, you will notice that the tachometer isn't the most accurate measuring tool for rpm readings. Which is why you'll find that the RPM light comes on at one set RPM but on your tach it looks different because of inaccuracy. A good example of this is my friends maxima at redline looks like it's at 6900 rpms on his tach when it's really redlining at 6500 rpms (verified by emanage).
The problem is this
The Summit switch is setup for a V8.. the dip switches set your RPM activation point and the pot makes adjustments. It seems that the DIP settings are only relative to the POT adjuster.. if you wind the POT all the way to one direction it will shift what RPM settings it activates on without moving dip settings.
Soo thats why .. 4000=5300rpm for me, and it won't for you.. they are all slightly different depending on the pot.. just ignore the dip settings labels and just set it to 4000 and see where it activates .. lower or raise from there.
Adjust the pot if you have to but in the end try and just use the DIPs then you can actuarely up/down the activation point.
The Summit switch is setup for a V8.. the dip switches set your RPM activation point and the pot makes adjustments. It seems that the DIP settings are only relative to the POT adjuster.. if you wind the POT all the way to one direction it will shift what RPM settings it activates on without moving dip settings.
Soo thats why .. 4000=5300rpm for me, and it won't for you.. they are all slightly different depending on the pot.. just ignore the dip settings labels and just set it to 4000 and see where it activates .. lower or raise from there.
Adjust the pot if you have to but in the end try and just use the DIPs then you can actuarely up/down the activation point.
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alphakaoz
5th Generation Classifieds (2000-2003)
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Sep 30, 2015 07:33 PM
lkiller123
3rd Generation Maxima (1989-1994)
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Sep 21, 2015 03:00 AM




When you set a really high or really low activation point, it will definitely feel like VTEC.
