First Timer .. HPT
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First Timer .. HPT So I am going to give it this week to see if I can (with ya'lls help) create a idle and maybe a drive to the shop level tune before getting my car tuned in 2 weeks.
Here are my questions, I have the tune pulled and converted it to 2 bar SD. I think all of that is right, I know i need to change the VE table, although I have no idea where to start.
I also know i need to change my injector flow rate table but the link in the sticky is broken so I don't know what value to set it at for 60's with stock fuel pressure 58psi.
Here are my questions, I have the tune pulled and converted it to 2 bar SD. I think all of that is right, I know i need to change the VE table, although I have no idea where to start.
I also know i need to change my injector flow rate table but the link in the sticky is broken so I don't know what value to set it at for 60's with stock fuel pressure 58psi.
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Okay, so I attached my tune thus far, trying to remove the MAF error codes where it wont be hooked up, also I attached a jpeg screen shot of an Excel file I found to show the injector scaling but the numbers seem off to me .. seems really low across the board let me know what you think.
Why is this such a secret? Why dont people just post up what your Flow rate vs Kpa table should look like for each size injector?
Why is this such a secret? Why dont people just post up what your Flow rate vs Kpa table should look like for each size injector?
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But I agree with you, why are injector offsets, minimum pulsewidths, etc a guarded secret?
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Alright if its taboo, then im in trouble but according to the chart I changed the entire IFR table to 8.73, moving on I dont really understand the VE table .. mostly because i dont understand how the engine can be at a positive (+) Kpa number and be in vacuum. So where do I start to adjust that .. anyone have a go from chart I can load?
Alright if its taboo, then im in trouble but according to the chart I changed the entire IFR table to 8.73, moving on I dont really understand the VE table .. mostly because i dont understand how the engine can be at a positive (+) Kpa number and be in vacuum. So where do I start to adjust that .. anyone have a go from chart I can load?
The info you have means nothing and probably isn't even correct so no one will care.
As far as the VE tuning you do understand tuning by AFR error%? It's almost too easy.
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Injector offsets, minimum PW, etc., are highly voltage dependent. The larger injectors (which are the only ones you need to modify) can have significant differences from one injector to another (unless properly matched) and from car to car. Also, FP can magnify any problems with any of these tables. It is just best to experiment until you reach the proper values for YOUR car. The "proper" tables straight from the manufacturer might not be "plug'n'play". If we only tuned within "specs", then tuning a stock car would always result in a 0 HP gain.
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Injector offsets, minimum PW, etc., are highly voltage dependent. The larger injectors (which are the only ones you need to modify) can have significant differences from one injector to another (unless properly matched) and from car to car. Also, FP can magnify any problems with any of these tables. It is just best to experiment until you reach the proper values for YOUR car. The "proper" tables straight from the manufacturer might not be "plug'n'play". If we only tuned within "specs", then tuning a stock car would always result in a 0 HP gain.
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Alright .. I got it started! can attach the tune if needed but I want to get a few things straight first. As I understand it 0psi or out of vacuum is about 100kPa right? So I am having a hard time figuring out how to reference the 0-100kPa numbers to a set amount of vacuum, so I can get my idle where I need it AFR wise. Right now its in the high 16's at idle at -16vac I know how to adjust it and I can do the conversion once it gets into boost I just don't understand how to figure vac .. any help?
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I didn't start the scanner when I had it plugged in last night 
I am trying to make some adjustments from the laptop now, I wont get back to the car until wed. night.
But when im there I dont have internet access so im trying to learn everything I can about my problems now so I can apply it when im there.
Also, what table to I need to be sure to adjust for low (10) timing while logging to be sure not to screw anything up when it first comes into boost?
I am trying to make some adjustments from the laptop now, I wont get back to the car until wed. night.But when im there I dont have internet access so im trying to learn everything I can about my problems now so I can apply it when im there.
Also, what table to I need to be sure to adjust for low (10) timing while logging to be sure not to screw anything up when it first comes into boost?
