Pinging on 91 octane?
#16
Since when is knocking ever good? To get the most out of the fuel? I don't care about the fuel, I want a quiet engine that will last forever
By the way, I also have the pinging sound and nothing I've done resolves it. It can be described as you all described it: When you first start driving it'll ping lightly and then as the knock sensor retards the timing, the knock goes away.
By the way, I also have the pinging sound and nothing I've done resolves it. It can be described as you all described it: When you first start driving it'll ping lightly and then as the knock sensor retards the timing, the knock goes away.
#20
#21
Originally Posted by maxximase
Thanks...seriously, I must have read right over that and it didn't register. Regardless, I have never, ever heard of spark knock being a good thing.
Wonder if Z owners report the same? I know my 04 Maxima never pinged.
Wonder if Z owners report the same? I know my 04 Maxima never pinged.
One thing to keep in mind, the rev-up VQ's are tuned to get the most hp out the crappy fuel we're given with only 91 oct. which puts it at the edge of detonation in timing degrees it's tuned for. Hell, 95 used to be considered regular grade 30 some odd years ago.
The Maxima does not have the same hp output as the G's or is it tuned to do so, it's tuned on a less advanced timing degree. More retard in timing = less hp and less chance of detonation. You don't have to run premium grade in Maxima's if i'm not mistaken. It's tuned in timing degrees to run on regular. And I believe you can also run regular in the non rev-up VQ's that only put out 280hp (5AT's). Not sure, but think I read that somewhere. But the 298hp's, no way. That's why Nissan has that sticker inside the fuel door on 6mt's that states 'premium fuel only'.
If only premium petrol was 95, there be no chance of detonation with the current timing degree ECU mapping. Might even get away with 92, maybe.
My .02
Last edited by V35 Skyline GT; 08-11-2006 at 01:21 AM.
#23
Okay...wasn't sure about that, being I don't have a 5at.
Thanx for confirming that.
Makes me think you guys with the 280hp Vq's probably don't have pinging issues like us 298's.
But you're in a whole different ball game now with your VQ35DETT.
Haha...what does Dave think of that in the service department
BTW: Think I saw you today turning left onto mangles from vintage valley drive. Was that you around 2:30-3pm?
Sorry about the thread jacking ppl.
Thanx for confirming that.
Makes me think you guys with the 280hp Vq's probably don't have pinging issues like us 298's.
But you're in a whole different ball game now with your VQ35DETT.
Haha...what does Dave think of that in the service department
BTW: Think I saw you today turning left onto mangles from vintage valley drive. Was that you around 2:30-3pm?
Sorry about the thread jacking ppl.
Last edited by V35 Skyline GT; 08-11-2006 at 02:01 AM.
#24
#26
Originally Posted by Fox233
Does anyone know of places to get 93 in the San Jose area? I guess there is one spot to get 100 Octane, but I am not up for spending that kind of money....
I'm not aware of any places that have 93. However, the 76 station on the corner of Almaden Expressway and Foxworthy (San Jose) does have 100 octane. Last time I filled up it was $5.09 a gallon. The price doesn't seem to go up and down like 89-91 octane. It's only gone up over the years. Due to the limited availability, they can charge a "premium".
Dave
#27
Originally Posted by bythabay
Anyone get thier pinging issues fixed?
I'm running lean anyways according to my past two Dyno A/F charts. Don't know if this is common with 2006 RevUp VQ's OEM tuning.
Originally Posted by WhatUpG_35
I'm not aware of any places that have 93. However, the 76 station on the corner of Almaden Expressway and Foxworthy (San Jose) does have 100 octane. Last time I filled up it was $5.09 a gallon. The price doesn't seem to go up and down like 89-91 octane. It's only gone up over the years. Due to the limited availability, they can charge a "premium".
Dave
Dave
Originally Posted by Fox233
Does anyone know of places to get 93 in the San Jose area? I guess there is one spot to get 100 Octane, but I am not up for spending that kind of money....
#28
NorCal here, too and it's warm right now. I started noticing pings and the dealer says try better gas... I've been using CostCo premium the last year... DOUH! $5/gallon at Shell or Chevron doesn' t sound like a lot of fun...
Also, noticed a lot of people posting problems, but not a lot of follow up with solutions!
Also, noticed a lot of people posting problems, but not a lot of follow up with solutions!