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Search took 0.03 seconds. Search: Posts Made By: xsnapshot
Forum: Tuning 02-10-2011, 04:36 PM
Replies: 80
Views: 12,520
Posted By xsnapshot
Idea

So today I was reading how the Nismo is rated at a higher power level than the base Z. Given the re calibrated ECU and exhaust work done this makes sense.

What I'm wondering is, if there really...
Forum: Tuning 02-08-2011, 10:16 PM
Replies: 80
Views: 12,520
Posted By xsnapshot
An interesting thread Osiris ROM files -...

An interesting thread
Osiris ROM files - General Tuning Questions - MY350Z.COM Forums (http://my350z.com/forum/vq35hr/462176-osiris-rom-files-general-tuning-questions.html)

Kind of weird how the...
Forum: Tuning 02-08-2011, 09:23 PM
Replies: 80
Views: 12,520
Posted By xsnapshot
Ive been doing some searching and I can't seem to...

Ive been doing some searching and I can't seem to find a consensus. Do the stock wideband sensors read the same as aftermarket widebands? Have you been having good luck with the stocks sensors? It...
Forum: Engine & Drivetrain 02-08-2011, 01:53 PM
Replies: 16
Views: 6,730
Posted By xsnapshot
6SPD_FTW, how does Toyota account for PCV flow...

6SPD_FTW, how does Toyota account for PCV flow with respect to fuel delivery? I'm just curious. I'd like to see how they estimate it.
Forum: Engine & Drivetrain 02-08-2011, 01:45 PM
Replies: 16
Views: 6,730
Posted By xsnapshot
Both of those sensors you described are O2...

Both of those sensors you described are O2 sensors. One is wideband, and one is narrowband. Both measure the ratio of oxygen in the exhaust stream, however only the wideband is capable of reading a...
Forum: Tuning 02-08-2011, 09:50 AM
Replies: 80
Views: 12,520
Posted By xsnapshot
^thats weird. What exactly do 85-105 mean? Like...

^thats weird. What exactly do 85-105 mean? Like is 100, a fueling situation where the ECU doesn't have to add/subtract fuel? Then 85% would be akin to taking away 15% fuel?

If the ECU is going...
Forum: Engine & Drivetrain 02-07-2011, 11:56 PM
Replies: 16
Views: 6,730
Posted By xsnapshot
Think about what your saying for a second. "70%...

Think about what your saying for a second. "70% of blowby gasses are unburnt hydrocarbons". I'm not sure where you came up with that number as it's likely NOT true. What about all the other...
Forum: Engine & Drivetrain 02-06-2011, 11:56 AM
Replies: 16
Views: 6,730
Posted By xsnapshot
^What? Don't spread miss-information. The ECU...

^What? Don't spread miss-information. The ECU does NOT take into account "fuel vapor" as part of the fueling process. And how does "fuel vapor" come from oil? It doesn't. What happens if one engine...
Forum: Engine & Drivetrain 02-02-2011, 11:45 PM
Replies: 73
Views: 23,627
Posted By xsnapshot
A great oil! Very tough, and meets just about...

A great oil! Very tough, and meets just about every specification possible for auto manufacturers. I run it in my WRX. High specific output engines love this oil.



Negative. In oils, the "x"...
Forum: Intake/Exhaust 01-31-2011, 10:18 AM
Replies: 13
Views: 3,628
Posted By xsnapshot
bump for answers to my questions....

bump for answers to my questions....
Forum: Tuning 01-31-2011, 10:17 AM
Replies: 80
Views: 12,520
Posted By xsnapshot
Half mafing is where you take any tables that are...

Half mafing is where you take any tables that are referenced to load (where load is derived from the MAFv values and an equation, where calculated load = (g/s*60)/RPM) and then half those values....
Forum: Tuning 01-30-2011, 11:26 PM
Replies: 80
Views: 12,520
Posted By xsnapshot
how are you guys getting your AFR? dual widebands...

how are you guys getting your AFR? dual widebands or stocks sensors? Can you do a log of both AFR sensors over RPM in, say, a 3rd gear pull?
Forum: Tuning 01-30-2011, 11:25 PM
Replies: 80
Views: 12,520
Posted By xsnapshot
Are most of these tables load based? (off the...

Are most of these tables load based? (off the MAFv readings?) If there is no table to raise the g/s limit, then you'll have to "half maf" all the loads. This is common in the Subaru realm when we...
Forum: Intake/Exhaust 01-27-2011, 07:21 PM
Replies: 13
Views: 3,628
Posted By xsnapshot
First off, this makes the nerd in me get all...

First off, this makes the nerd in me get all excited. :happydance: A few quick constructive questions....

Question: If the exhaust is supposed to be reducing drone, of which complaints come from...
Forum: Forced Induction 01-27-2011, 06:21 PM
Replies: 1,588
Views: 275,559
Posted By xsnapshot
Just read through the important bits. Great work!...

Just read through the important bits. Great work! Am I to understand that once the car is up and running, that this will be the test bed for real world VVEL tuning? And that up to this point it has...
Forum: Tuning 01-25-2011, 09:52 PM
Replies: 9
Views: 3,672
Posted By xsnapshot
Perfect! This is exactly what I was trying to...

Perfect! This is exactly what I was trying to find. Throttle mapping sounds like it would be similar to this table in the Subaru ECU
...
Forum: Tuning 01-25-2011, 03:24 PM
Replies: 9
Views: 3,672
Posted By xsnapshot
Interesting. I suppose there's not that many that...

Interesting. I suppose there's not that many that NEED to be modified anyway, as most of the compensation tables are usually not used, or if they are, the effect is minimal.

I did some searching...
Forum: Tuning 01-25-2011, 11:38 AM
Replies: 9
Views: 3,672
Posted By xsnapshot
Uprev capability

Being involved in the open source tuning community for Subaru's has sparked my interested in what exactly Uprev has the ability to modify.

Perhaps an Uprev representative could chime in (if there...
Forum: Engine & Drivetrain 01-21-2011, 11:06 AM
Replies: 15
Views: 3,232
Posted By xsnapshot
best rear end for upgrading?

Looking into getting a 370z really soon (next couple of months) and had a question. I want to upgrade the rear to a true limited slip and was wondering what the best route to take was. Can you...
Forum: Tuning 01-21-2011, 11:01 AM
Replies: 30
Views: 7,044
Posted By xsnapshot
I'm pretty sure this is normal. And IIRC it's...

I'm pretty sure this is normal. And IIRC it's cause, is injector over-run.

There is a small delay between when you let off the gas, and when the injectors and spark plugs stop firing. I believe...
Forum: Forced Induction 01-14-2011, 11:35 AM
Replies: 265
Views: 31,074
Posted By xsnapshot
Long time lurker here. I'm a few months away from...

Long time lurker here. I'm a few months away from my engineering degree and have been looking heavily into getting a lightly used 370z as a replacement for my modified WRX. (they are fun, but just...
Showing results 1 to 21 of 21

 
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