Conway_160

iTrader: (2)

I noticed some thing weired today when going in town, I was in 5th and the rpm's was about 1k (30mph'ish) i was just cruisin down the road and noticed my rpm's bouncing between 1k-1.4k as soon is i gave it some gas and hit about 2k it never happend again no matter how hard i tried. I wish i had the laptop with me.

glenn1234

I've had this happen. Mainly it was when cruising at a fixed speed the rpms would bounce. Seemed to happen to a few others and after a fluid change it went away suggesting that slippage may be the cause?? So I did change my fluid (50,000km much needed) and it has fixed it along with making everything about the sst seem that much better!

I also mainly noticed it when in a high gear and cruising, if I shifted down or gave it some gas to get the rpms up over 2.5k no sign of slipping/rpm hunting etc

Conway_160

iTrader: (2)

I hope its not my tranny slipping i only have 21k miles the thing, I just bought the car like 4 months ago!

Struc

iTrader: (11)

Yeah, that's what I was talking about. My first 1 -> 2 shift of the day would always snap my neck. The subsequent ones for the first minute weren't as bad, but still noticably more shocking than normal. With the Balance 20, that's gone - completely. And yes, this is in normal/auto mode. And yes, I do normally drive in that mode. I drive 35 miles to work and 35 miles home, so I'm usually just in a mindless drone mode. When I'm driving around town or on errands, I'm usually in Sport/Manual.

And yes, I do understand you don't have access to the TCU or currently have the ability of modifying when it shifts into 6th - I just threw that in there as one of my biggest annoyances. I'd just love to lock it out of 6th until around 50mph.

BravoZero

iTrader: (2)

Rich/Bryan... what should be the approximate range for AFR at WOT? I noticed today after doing a few pulls that my wideband got down into he 12's and 13's...

RazorLab

iTrader: (8)

High 10's / Low 11's.

12/13 at WOT is too lean.

BravoZero

iTrader: (2)

I'll monitor it again tomorrow on my way to work, maybe my foot wasn't planted all the way down after all... I know my idle and cruise is anywhere from 14.7-15.5, which is normal right?

RazorLab

iTrader: (8)

Yup

BravoZero

iTrader: (2)

Thanks Bryan! Sorry for the dumb questions.

majinfajita

I did not comment on using the Evo X MAF, as that is what I am running, I was telling you that, had you read the thread, you'd know the answer.

Conway_160

iTrader: (2)

Ok good sir i see what your saying and i'm idot! But on that note for those that have boost gauges is this saposed to happen at max boost???

majinfajita

Na man, we all start learning somewhere.

I'll let someone else chime in as I don't have a boost gauge (on this car), but that looks....weird....I had the same (or dang similar) boost gauge on my Audi and I've never seen it do that (I had a slight vacuum leak so it never was at 20 inches of vacuum but never fluttered at peak boost like that).

zebra4

No that is not normal. It will taper down as you approach redline but it shouldn't bounce around like that. If its mechanical check to ensure there are no leak at the gauge or where you tapped the vac line. If its electrical, still check the vac line at both sides. I would start there.

mxzas

Just came from 2.7 to balance 21, the shifts are much smoother now, with 2.7, around 2.5k RPM the shifts were very harsh, of course that is completely gone with balance 21.

richardjh

Cool... thanks for the feedback.

Rich