Do any of your trucks feel like they accelerate in stages? I was pulling up an on ramp yesterday with the a/c on and didn't have it matted but was under acceleration. The truck felt like it accelerated in stages with a hesitation before each shift. It wasn't anything to make it feel like it was going to stall it just wasn't anything near a smooth acceleration.
Volant Owners..
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Thai
Elite Member
Hmm, that's kinda strange...maybe your transmission was hunting for gears?? In addition, with electronic throttle, maybe the computer was confused along with transmission?? Are you sure that your foot did not let off the gas pedal (even a little bit) and that pressure was applied consistently while going up the ramp?
Casper
New member
OUTRNNR said:
Nh00gts, does it sound different when it changes "stages" too? I don't feel any changes during acceleration, but you can sure hear when the VAIS opens up at about 4200 rpm...
C,
im getting that 4200 change now but only from a dead stop and up. If i downshift i dont hear the change but if i floor it from a dead stop it get it.
I almost went deaf the other night on my way back from Phoenix with it (got about 360 miles on a tank at 85mph...so yeah, it does help with mileage) as i was just in the range where the resonance is high and i was stuck in that throttle position and rpm range.
I get the louder sound after 4200 rpm only at 9/10's and up throttle. If I keep the tranny in a lower gear and slowly accelerate to redline at half throttle the sound doesn't change meaning the VAIS either doesn't engage or you can't hear the difference. Also, if I accelerate hard past the 4200 rpm mark and then let off a bit, I can hear it "stage down" and get quieter leading me to believe he VAIS has shut the short runner path. I'm pretty sure this is what showed up on my dyno a while back. BTW, I plan on getting back to the dyno soon to get numbers on the new intake.Casper said:
More on VAIS in the Volant Intake thread (a couple pages from the end of the thread about 10 posts after my pictures of the install):
http://www.toyota-4runner.org/showt...rpage=30&highlight=volant intake&pagenumber=8
Last edited:
msanta
New member
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