maxgee

iTrader: (5)

Post your input with running SD all the time, please.
I'm considering this, but live in FL where we have high humidity in the summer. I'm working on my tune now, high humidity hasn't hit us yet...suggestions?

ninetres

iTrader: (35)

I am......even though my car is never up for a long period of time

Just have your tuner tweak it for changes in season.

Websy21

iTrader: (34)

I am not there yet but I'll be running a SD tune all the time. From my understanding, if you have a good tune you won't have to tweak for temp changes unless you are after that 1-2% spot on tune. This is what the IAT sensor is for. I am not tuning my car so I hope I am right, it will be a one time deal once everything is broken in.

hellbents10

iTrader: (10)

Just depends on how good the tune is. There is correction tables for baro, etc, and iat. So weather changes shouldn't throw you off far enough to ever warrant a necessary tune change.

Websy21

iTrader: (34)

Thats what I got out of the tuning section, I won't know how to do this but I'll make sure my tuner does

Z06PSI

iTrader: (33)

Full time SD here with no problems. Tuner is below.

Schantin

iTrader: (6)

Yep, been in SD mode for a while and 2-bar SD for the past 4 months. Driven the car 2x from Virginia to Alabama with outside temps ranging from 20-80 degrees. Have not needed to change the basic tune. The MAP sensor notes pressure, so that takes care of altitude changes. The IAT is measuring the intake temp, so that covers the differences in outside air temp too.

BTW, for FI I highly recommend the 2-bar SD mode of operation. It makes for smooth power increase cause you can tailor the VE table for part-boost cells. On the dyno the HP/torque curve looks more like a N/A car than a FI car. No sudden hp/torque spikes or oscillations that are the norm in 1-bar SD or MAF modes.

kbracing96

iTrader: (25)

I've been running my truck in 2bar SD for the last 2 years. Everything from WY winters to AZ summers.

Z06PSI

iTrader: (33)

I am 2-bar as well but getting ready for 3 bar.

frcefed98

iTrader: (16)

2 bar SD here

VH5150

Ive noticed that if the car is tuned at a certain IAT, depending if the IAT goes up or down will determin if the car runs lean or rich @ WOT.At least on my car anyways...

Anti-Vnm

iTrader: (14)

I'm not boosted, but I've been running SD in my DD for over 3 years.

koji777

iTrader: (3)

3 bar here

Slowhawk

iTrader: (12)

Have had 4 cars SD tuned for years including my wifes turbo truck. Haven't touched them since they were done and if they went way off we'd know because the motors would be blown.Tuned about a dozen more this year in OLSD with no problems as of yet.

maxgee

iTrader: (5)

My 93 LT1 Camaro was speed density.
My bike has no closed loop operation either, no o2s so I assume is a speed density set up? I have tuning software and hardware for it also "powercommander" affliated with Dynojet. I've taken it from Florida 90+ degree weather at sea level to GA 50 degree weather over 3,000 feet above sea level with no problems. So I'm assuming our cars with SD should be fine if the tune is done correctly. Thanks for your replies.

NYSS Guy

iTrader: (1)

I've been running a 2 bar SD for a couple of years now....and I'm in S. Fla too. I haven't had any issues, but I do keep an eye on things with HP Tuners. Where are you?

maxgee

iTrader: (5)

Homestead Florida

You sig says you are running out of fuel with your Racetronix pump.
Another LS1 M6 guy up in Boca says his Racetronix pump wasn't enough either, but guys I talked to with Walbros pushing forced induction say they are good with one Walbro up to 600hp. I'm wondering if Racetronix pump is an issue.
Anyway, I would like to meet up and check out your set up. I just got mine installed a couple weeks ago and still need to finishing tuning. I'm waiting on two pins to run my wideband to my EGR plugs in the ECU.
my email is maxg929@gmail.com

Rickys S/C Z28

iTrader: (13)

im getting mine done in SD then ill let you know

SPRAYED 01

iTrader: (22)

Im running sd tune all the time. My racetronix would not hold. I had to swap it out for the lonnies dual intank.

52172

iTrader: (2)

full time SD here Ken from HP tuners tuned mine 2Bar.