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Jehannum
 
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Quote:
Originally Posted by [H]ard|On View Post
Sounds mean... maybe turn the tunes down next time though

And why does that look so slow for that much power?

Dunno.



Ignore the AF trace, after you hit about 9:1, their wideband registers 20:1. My AEM still read correctly.
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1992 300ZX: Not stock, 433 RWHP
1971 240Z: Toyota front brakes, 123 RWHP
1967 Pontiac GTO: not stock.
Old 10-24-2010, 08:35 PM Jehannum is offline  
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[H]ard|On
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Haha I was gonna say there's your problem - must be pulling timing like no tomorrow
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Old 10-25-2010, 01:39 AM [H]ard|On is offline  
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Jehannum
 
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Haha I was gonna say there's your problem - must be pulling timing like no tomorrow

My ECU doesn't pull timing.
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1992 300ZX: Not stock, 433 RWHP
1971 240Z: Toyota front brakes, 123 RWHP
1967 Pontiac GTO: not stock.
Old 10-25-2010, 06:13 AM Jehannum is offline  
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Lurker
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Quote:
Originally Posted by [H]ard|On View Post
Sounds mean... maybe turn the tunes down next time though

And why does that look so slow for that much power?

Thats why I asked what gear the run is in, it doesn't seem to be picking up that fast. It could just be his quiet exhaust.

---------------------
9:1?

Why so rich?
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Old 10-25-2010, 07:37 AM Lurker is offline  
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Thats why I asked what gear the run is in, it doesn't seem to be picking up that fast. It could just be his quiet exhaust.

---------------------
9:1?

Why so rich?

Because I haven't got my latency and flow values correct yet. It falls way, way rich at the top end (where latency doesn't much matter), so I suspect I've underestimated the correct flow value of the injectors.
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Your powers are useless! I'm wearing my tin foil underwear!

1992 300ZX: Not stock, 433 RWHP
1971 240Z: Toyota front brakes, 123 RWHP
1967 Pontiac GTO: not stock.
Old 10-25-2010, 07:47 AM Jehannum is offline  
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My ECU doesn't pull timing.


cruisin' for a bruisin' man. I'd be scared to not have a retardation function.
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Old 10-25-2010, 10:57 AM Typhoon43 is offline  
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cruisin' for a bruisin' man. I'd be scared to not have a retardation function.

I'm running well under the limits for both the turbos and the bottom end.

That said, I do plan to hook up a detonation sensor in the future, but I need to eliminate the extra variables to get the injectors tuned right.

When sensing knock, the ECU will fall back to a different timing map, but it's not nearly as advanced as some schemes around today.
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1992 300ZX: Not stock, 433 RWHP
1971 240Z: Toyota front brakes, 123 RWHP
1967 Pontiac GTO: not stock.
Old 10-25-2010, 11:08 AM Jehannum is offline  
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Quote:
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My ECU doesn't pull timing.

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Old 10-26-2010, 12:25 AM [H]ard|On is offline  
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Tex Arcana
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Quote:
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My ECU doesn't pull timing.





Detonation is your friend, am i rite?
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Old 10-27-2010, 04:11 PM Tex Arcana is offline  
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Detonation is your friend, am i rite?

No.

Here's why: I'm already running a tuned ECU. I'm not running my shitty Honda at 14:1 at 34PSI of boost, and wondering why my engine sounds like a coffee can full of marbles.

Even if I had my knock sensor plugged in, both the knock and main fuel and spark timings are identical (and conservative). This is the off the shelf tune from one of the most respected Nissan tuners around (Jim Wolf Tech). The only difference is that when the Nissan ECU detects knock, it cuts to safety boost (7PSI on stock turbos). Since the wastegate springs on my new turbos are actually ~12PSI, the stock boost cut does nothing (except illuminate a safety light I built and installed on the dash).

I've made small tweaks to the tune to adjust for my injectors (which I'm still dicking around with to get perfect). I may, down the road, elect to move to more aggressive main maps at which point, the knock sensor becomes a bigger issue. When it becomes a bigger issue (not before), I will resolve it.

Now, I'm sorry if I've offended your sensibilities by not running 80 spark advances and stuck with a nice fat, safe tune, but like I've said before: this car is going to remain well within the capabilities of the hardware I've installed. I'm not pushing anything to the very edge of reliability. If that means I only make 420HP instead of 500, that's 80HP I'm willing to sacrifice.
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Your powers are useless! I'm wearing my tin foil underwear!

1992 300ZX: Not stock, 433 RWHP
1971 240Z: Toyota front brakes, 123 RWHP
1967 Pontiac GTO: not stock.
Old 10-28-2010, 02:53 PM Jehannum is offline  
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[H]ard|On
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So 420 for lyfe, is what you're saying
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Old 10-28-2010, 05:21 PM [H]ard|On is offline  
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Tex Arcana
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Quote:
Originally Posted by Jehannum View Post
No.

Here's why: I'm already running a tuned ECU. I'm not running my shitty Honda at 14:1 at 34PSI of boost, and wondering why my engine sounds like a coffee can full of marbles.

Even if I had my knock sensor plugged in, both the knock and main fuel and spark timings are identical (and conservative). This is the off the shelf tune from one of the most respected Nissan tuners around (Jim Wolf Tech). The only difference is that when the Nissan ECU detects knock, it cuts to safety boost (7PSI on stock turbos). Since the wastegate springs on my new turbos are actually ~12PSI, the stock boost cut does nothing (except illuminate a safety light I built and installed on the dash).

I've made small tweaks to the tune to adjust for my injectors (which I'm still dicking around with to get perfect). I may, down the road, elect to move to more aggressive main maps at which point, the knock sensor becomes a bigger issue. When it becomes a bigger issue (not before), I will resolve it.

Now, I'm sorry if I've offended your sensibilities by not running 80 spark advances and stuck with a nice fat, safe tune, but like I've said before: this car is going to remain well within the capabilities of the hardware I've installed. I'm not pushing anything to the very edge of reliability. If that means I only make 420HP instead of 500, that's 80HP I'm willing to sacrifice.

Yes, I'm offended, now go suck some dick for B16.

And, please post of engine carnage when you get a bad tank of fuel and blow the rods out the oil pan? Pretty please?
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Old 10-28-2010, 05:22 PM Tex Arcana is offline  
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Hey if it throws a rod he can always swap a navi motor and maybe fire it up five years later
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Old 10-28-2010, 05:24 PM [H]ard|On is offline  
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Tex Arcana
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Hey if it throws a rod he can always swap a navi motor and maybe fire it up five years later

Or an Infiniti V8 swap and take 10 years.
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People should not be afraid of their governments. Governments should be afraid of their people.--V


Men heap together the mistakes of their lives, and create a monster they call destiny.
--John Hobbs


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Old 10-28-2010, 05:55 PM Tex Arcana is offline  
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Jehannum
 
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Yes, I'm offended, now go suck some dick for B16.

And, please post of engine carnage when you get a bad tank of fuel and blow the rods out the oil pan? Pretty please?

If I blow up my engine, I promise, you'll get the first "I told you so".
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Your powers are useless! I'm wearing my tin foil underwear!

1992 300ZX: Not stock, 433 RWHP
1971 240Z: Toyota front brakes, 123 RWHP
1967 Pontiac GTO: not stock.
Old 10-28-2010, 06:08 PM Jehannum is offline  
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