LinuxRacr's Haltech E6X Log..

[Captain KRM P5]

Lets just say I was running a tad rich (10s or lower) it was "safe riched" by Terry to handle the cold weather when it was delivered... that was all... the other numbers are more what I get "now" unless racing.

"now" in parentheses as in if the car were running j/k

 

[TurfBurn]

pretty much LOL... low blow man..

 

[Captain KRM P5]

pretty much LOL... low blow man..

not intended as anything but friendly jab, steve. i've blown an engine and gotten my fair share of flak for it. my family brings it up every holiday dinner

 

[LinuxRacr]

Hahaha! Steve, Nick, you are both correct. Looking at the Fuel Air Correction map, I can probably guess with certainty that it doesn't have the resolution to adjust perfectly for every temperature range. Also, yup, this was definitely a trade-off. The bigger injectors change the game considerably. I'm sure MPNick or Steve will tell you more on that.

 

[LinuxRacr]

Welcome to the world of big injectors and standalones.(poke)

Indeed. I only read about it, now I get to experience it.

 

[Captain KRM P5]

Hahaha! Steve, Nick, you are both correct. Looking at the Fuel Air Correction map, I can probably guess with certainty that it doesn't have the resolution to adjust perfectly for every temperature range. Also, yup, this was definitely a trade-off. The bigger injectors change the game considerably. I'm sure MPNick or Steve will tell you more on that.

i'm a little confused on one aspect - you are using 460cc and juan had it setup for 440cc, right? how much if at all is that going to affect your tune? or did juan know you were going with 460cc? or does that even matter?

 

[LinuxRacr]

The best WB in the world will not help you tune for cold starts.

This is the truth. When you are starting your car, your wideband will be warming up anyway, so how you gonna tune while cranking up?

 

[TurfBurn]

not intended as anything but friendly jab, steve. i've blown an engine and gotten my fair share of flak for it. my family brings it up every holiday dinner

I don't mind at all and I thought it was quite funny... I am very ok with blowing my motor... was a good thing.. if hadn't done it I'd never be building the kind of motor I am now!!! So very exciting to have what I have coming

 

[LinuxRacr]

i'm a little confused on one aspect - you are using 460cc and juan had it setup for 440cc, right? how much if at all is that going to affect your tune? or did juan know you were going with 460cc? or does that even matter?

Yeah, we all knew I was going to go with 460cc injectors, so we knew a map would have to be made up. The 460's dump more fuel in, and you have to have a finer control of them especially on start up and idle due to the larger apature for fuel flow. You dump too much, you foul out. Also with bigger injectors you can only decrease the duty cycle/injector open time so much before you start affecting drivablility.

 

[Captain KRM P5]

Yeah, we all knew I was going to go with 460cc injectors, so we knew a map would have to be made up. The 460's dump more fuel in, and you have to have a finer control of them especially on start up and idle due to the larger apature for fuel flow. You dump too much, you foul out. Also with bigger injectors you can only decrease the duty cycle/injector open time so much before you start affecting drivablility.

so what kind of map was done up and who did it? steve k?

 

[TurfBurn]

Hahaha! Steve, Nick, you are both correct. Looking at the Fuel Air Correction map, I can probably guess with certainty that it doesn't have the resolution to adjust perfectly for every temperature range. Also, yup, this was definitely a trade-off. The bigger injectors change the game considerably. I'm sure MPNick or Steve will tell you more on that.

True that it doesn't have the "true" resolution.... but the curve fitting should be good enough to make you very in the ball park and you should be able to start without problem... idling "smoothly" may be a different issue.. but starting shouldn't be... mine started fine down to about 5 degrees without issue... just took a bit to warm up before it could drive because the idle maps were crappy.. .that was the first time I EVER tuned really... and terry had it uber rich... so I never got to deal with it properly.. but starting shouldn't be an issue!

Later.

off to a s-bowl party!

 

[MPNick]

i'm a little confused on one aspect - you are using 460cc and juan had it setup for 440cc, right? how much if at all is that going to affect your tune? or did juan know you were going with 460cc? or does that even matter?

Why would this matter. The car was tuned by Steve Kan a few days ago. You get alot better with having it custom tuned that way then a pre-map tune.

 

[MPNick]

There is always sacrifice involved because of exactly what you pointed out... the OEM PCM is easily FAR FAR FAR more powerful than any standalone. No doubt about it.

Thats why I leave it in.

 

[Captain KRM P5]

Why would this matter. The car was tuned by Steve Kan a few days ago. You get alot better with having it custom tuned that way then a pre-map tune.

thats just it nick, i am asking if it would even matter because quite honestly i don't the answer and was hoping someone could intelligently answer that. i never said that having 'pre tuned' was better and have been telling pat since he got that he would need to adjust the map.

 

[HiBoost TS]

I knew that Pat had 460 cc injectors, but I do not have a map for those injectors. So I loaded the 440s so he would be close and directed Pat over the phone how to get close to a good map. He did get close, but unless you are an experienced tunerit is very hard to get it really good. All maps are affected by larger injectors. All other maps, like cold start, priming maps, air temp correction, battery voltage correction, throttle pump maps, and a few other maps have to be adjusted according to the iinjectors you have. All these maps work on percentage, so it is not the same 30% in a 280 cc injector than in a 460cc injector.

So the answer is that every time you change injectors you need to re map the whole system, not just the fuel maps. By my experience the Haltechs work really good when properly tuned and that goes for all stand alones.

I have tuned cars that are street driven and make over 600WHP (4 cylinder and 1.8 to 2.0 L) running on 750cc injectors working very close to perfect.
They idle smooth, start right away, and drive fine under normal conditions.

 

[PaulMP3]

This is the truth. When you are starting your car, your wideband will be warming up anyway, so how you gonna tune while cranking up?

indeed, i was just wondering how your are tuning the rest of fuel to your boost level and turbo kit.

 

[MPNick]

) running on 750cc injectors working very close to perfect.

, and drive fine under normal conditions.

Sounds good.

Did not Steve Kan, a "God" when it comes to tuning do Pats car?

 

[MPNick]

Indeed. I only read about it, now I get to experience it.

You should keep an eye on your oil. It will not take much of this cold starting problems and rich running to give you fuel wash. You should change your oil and filter before you start to damage a rod bearing.

 

[LinuxRacr]

Yeah, I am keeping an eye on that. I am stopping by Motorsport Sales on the way to work to get more Redline.

 

[MPNick]

Yeah, I am keeping an eye on that. I am stopping by Motorsport Sales on the way to work to get more Redline.

Save your money. Run any cheep oil right now until you get you system working right. Maybe get a years worth, just in case it takes a while.(huh) Just do not beat the s*** out of it with the cheep oil.