Jump to content
SAU Community

Recommended Posts

2 hours ago, GTRNUR said:

One more thing, my fuel temps dropped 15 degrees when I changed from constant pump speed to injector duty based PWM pump speed.  Well worth doing.

Interested in the impact that 15o has on fuel, I found no solid information last time I looked around.  What temp should fuel be, what happens as it gets hotter, and what is too hot?

1 hour ago, fatz said:

98 it doesn't seem to do shit

 

e85 she get hot and leans out a bit

 

small cooler fixed it in my r33

 

staged pumps also helps

The pumps were supposed to be staged to stop the fuel getting hot.

One of the first thing that was looked at when I first went to the shop , I was asked where the surge tank was and when I showed him, he said feel the surge tank and it was pretty hot

Does hot fuel interfere with the tune, could this be a reason it was spiking on 85. it was OK on 98 ?

Yea e85 doesn't like to get hot or it will lean out but you will be amazed how lean it can run before it melts a piston

 

 

98 even slight lean outs = melted pistons

 

I  logged it in my gtr and after three laps you can watch the afr getting scary

 

like I said a small cooler fixed it

 

2 hours ago, fatz said:

Yea e85 doesn't like to get hot or it will lean out but you will be amazed how lean it can run before it melts a piston

 

 

98 even slight lean outs = melted pistons

 

I  logged it in my gtr and after three laps you can watch the afr getting scary

 

like I said a small cooler fixed it

 

I am sure your car cops heaps more than I will ever do with mine, Micko and Paul is another thing, lol

Going to do some laps with Paul after it is done and dusted, has to be better than dodging potholes :)

26 minutes ago, fatz said:

The irony of taking advice from 3 blokes who don't have running cars is not lost on me

 

lol

Hahahaha!

Now thats a bit harsh, lol

But the Pig is only a couple of months away now and it will be amazing !!!!

Micko just has to get off his BUTT, sorry Mick, I luv ya xxx

23 hours ago, fatz said:

Yea e85 doesn't like to get hot or it will lean out but you will be amazed how lean it can run before it melts a piston

 

Why no closed loop correction in heavily load areas?

I set my closed loop all the way to 2 bar.

15 minutes ago, Mick_o said:

I think you know the answer to that! ?

2 bar I Don't party as hard as you blokes 

I could have got some flash computer and talked about epic closed loop control..... or I could just install the 300 dollar cooler and be done with it back on track the following week

 

my car was back on track the following week

  • Like 1
2 hours ago, fatz said:

2 bar I Don't party as hard as you blokes 

I could have got some flash computer and talked about epic closed loop control..... or I could just install the 300 dollar cooler and be done with it back on track the following week

 

my car was back on track the following week

That comment wasnt directed at you fat man. ?

In saying that your car is a filthy dirty track whore ?

Not everyones car is lol

 

Edited by Mick_o
Because edit

Haha all good mate love a stir. Damn SAU & its auto correct... Broad minded person lol... ?

Expected more shit to be slung big fella lol.... Off the piss or something? ?

Edited by Mick_o
Because edit
On 26/03/2017 at 3:31 PM, fatz said:

staged pumps also helps

Controlling fuel pump speed with PWM ftw, imho.   Should be able to run MASSIVE pumps and have the fuel get no warming than with a stock fuel pump if you run the right amounts, you should be able to have headroom the whole way through so the regulator is still always busy but without nuking the fuel.

On 26/03/2017 at 5:14 PM, Nismo 3.2ish said:

Does hot fuel interfere with the tune, could this be a reason it was spiking on 85. it was OK on 98 ?

Definitely.  

17 hours ago, Dose Pipe Sutututu said:

Why no closed loop correction in heavily load areas?

I set my closed loop all the way to 2 bar.

That is putting a lot of faith in that system.

1 hour ago, Lithium said:

That is putting a lot of faith in that system.

It is, however you tune it so it's nearly 100% at the AFR you wish and then allow maximum of sat -/+5% correction either way. 

I've been doing this for all the cars I've tuned for the track and "seems" successful, besides mine which exploded on the street lol.

Ideally fuel should be trimmed via baro, iat, and fuel temp but at times budget setups don't have the necessary sensors we all wish for.

Well finally after sorting out many problems they started to tune it up today and have a run on 98 at 20psi , next week they will turn it up a bit and fine tune it.

I will put the final tune results next week, here is the Dyno run on 20psi

Should look mad on E85

NISMO1 98RON 20psi 2.pdf

  • Like 2

After a long time and many negative and positive helpful hints and told to buy a V8 by a few , they said I would never be happy with the 34 , but I like the Skyline and just wanted this somewhat heavy 2.6Lt car to have some more torque to make it get going earlier.  a few pissed on me about going on about RESPONSE!. I was also told on the first page no one would be bothered to reply or read the thread , but 116 sometimes very boring pages later we are at an end , this will make many happy, but as I said at the getgo, don't like it, don't read it, piss off, many did, lol

The top end power has dropped down from the earlier tunes , 1st 475kw, then 461and now 457kw but it is more the car I wanted, response!

Micko has pick it up and bringing it up with Paul on the weekend, hope it makes it home in one piece and there goes my liver after a few days with these alcoholics  :yes:

                                                                                          

 

 

 

E65 Scott.JPG

  • Like 2

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Back again. I returned to Japan in Jul/Aug to spend time with the car on my birthday and remind myself what all the sacrifice and compromise is for. It happened to line up with the monthly morning meet in Okutama, which I have been wanting to go to for a long time. It's a unique event at a unique spot with really rare, interesting, and quirky cars. It's where all the oldheads and OGs gather. The nighttime scene at DKF certainly has its place and should be experienced if you're into cars, but there's too much bad attention and negativity around it now. IMO the better time is Sunday morning at DKF or Okutama; it's more chill and relaxed. I'm glad I was finally able to go, but not sure it's worth the drive from all the way from Nagoya immediately the day before, unless I was already staying in Tokyo for the days right before the meet, because you have to wake up quite early to make it in time. Funnily enough though I didn't drive the car all that much this trip because it was just too damn hot. While there were zero issues and running temps were nominal and the A/C was strong, RBs already run crazy hot as it is. Sure, it took it all like a champ but something about driving these cars in the ridiculous heat/humidity bothers me and makes me feel like I'm asking too much of it. I'm just me being weird and treating the car like a living thing with feelings; I'm mechanically sympathetic to a fault. Instead I was mainly driving something else around - a KX4(silver) 2001 X-Trail GT, that I acquired in May. There's a few different flavors to choose from with Xs, but visually it's the Nissan version of the Honda CR-V. Mechanically it's a whole different story as this, being the top-trim GT, has an SR20VET mated to a four-speed auto and full-time AWD! It was a very affordable buy in exceptional condition inside and out, with very low mileage...only 48k kms. Most likely it was owned by an older person who kept it garaged and well-maintained, so I'm really happy with how it all worked out. It literally needs zero attention at the moment, albeit except for some minor visual touch-ups. I wanted something quirky, interesting, and practical and for sure it handily delivers on all three of those aspects. I was immediately able to utilize the cargo and passenger capacity to its full extent. It's a lot of fun to drive and is quite punchy through 1st and 2nd. It's very unassuming -in the twisty bits it's a lot more composed than one would think at a glance- and it'll be even better once I get better tires on it(yes, it's an SUV but still a little boat-y for my liking). So...now I have two golden-era Nissans in silver. One sports car and one that does everything else; the perfect two-car solution I think👍 The rest of the trip...I was able to turn my stressed brain off and enjoy it, although I didn't quite get to do as much as I thought. I did some interesting things, met some interesting people, and happened into some interesting situations however, that's all for another post though only if people really want to know. Project-wise, I went back to Mine's again to discuss more plans and am hoping to wrap that up real soon; keep watching this space if that interests you. Additionally, while working in the tormenting sweatbox that is the warehouse, I was able to organize most of the myriad of parts that my friend is storing for me along with the cars, and the 34 has a nice little spot carved out for it: And since it can get so stupid hot in there, that made it all the more easy -after I was standing there looking at the car and said 'f**k it'- to finally remove all the damn gauges that have mostly been an eyesore all this time. Huzzah. The heat basically makes the adhesive backing on the gauge mounts more pliable to work with, so it was far less stressful getting this done. I didn't fully clean it up or chase the wiring though; that will happen once I have the car in closer possession. Another major reason to remove all that stuff is to give people less reasons to get in my car and steal s**t while it's being exported/imported when/if the time comes, which leads us to my next point... ...and that is even though it's time in Japan is technically almost up since it's a November car and the X would be coming in March, I'm still not entirely sure where my life and career is headed; I don't really know what the future looks like and where I'm going to end up. I feel there's a great deal of uncertainty with me and as a result of that, it feels like I'm at a crossroads moreso now than any point in my life thus far and there are some choices I need to make. Yes, I've had some years to consider things and prepare myself, however too much has happened in that time to maintain confidence and everything feels so up in the air; tenuous one might say. Simply put, there's just too much nonsense going on right now from multiple vectors. Admittedly, I'm struggling to stay in the game and keep my eyes on the prize. So much so in fact, that very recently I came the closest I ever have before to calling it quits outright; selling everything and moving on and not looking back. The astute among you will pick up on key subtext within this paragraph. In the meantime I've still managed to slowly acquire some final bits for the car, but it feels nice knowing there's not much left to get and I'm almost across that finish line; I have almost everything I'll ever want for my interpretation and expression on what it is I think an R34 should be. 'til later.
    • Thanks for that, hadn’t used my brain enough to think about that. 
    • Also playing with fire if they start to flow more air down low than what the stock twins can. It's not even up top you need to worry, it can be at 3000rpm and part throttle and it's getting way more flow than it should.
    • Any G40/1000 or G40/1250 results out there?  
    • You still want a proper tune on the stock ECU though. Stock tune + stock ECU with GT-SS/-9s is probably playing with fire if you're running more than stock airflow/power.
×
×
  • Create New...