Custom tunes
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Elder User
Joined: Sep 2013
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Custom tunes
So has anyone found any real numbers or charts showing the difference between canned and custom tunes ? And dos it make much difference beings that the obs is non waste gated turbo and smaller injectors? I'm running the ts 6 position chip now with ts tune. And do any of these guys that make custom tunes change how my e4od shift ? My truck always gos into 3rd too soon and never likes to unlock the torque converter.
Lead Driver
Joined: Oct 2010
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From: Columbus, Oh
So has anyone found any real numbers or charts showing the difference between canned and custom tunes ? And dos it make much difference beings that the obs is non waste gated turbo and smaller injectors? I'm running the ts 6 position chip now with ts tune. And do any of these guys that make custom tunes change how my e4od shift ? My truck always gos into 3rd too soon and never likes to unlock the torque converter.
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Elder User
Joined: Sep 2013
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Okay because yeah there was that TW guy that for $150 I get it re write or the php place for $50 I'd get one tune burned. But yeah the only mods I have on my truck is a down pipe, intake and spx billet wheel. And iv tried to find someone who can make my truck shift like a normal tranny but never had any luck. Drives my crazy when towing I have to use manual gears
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Elder User
Joined: Sep 2013
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Yeah I checked out the php place and that looked good but they couldn't re burn my TS chip I had to buy one of there's. I'm mainly seeing if it's really worth it for a truck like mine. I'd like to get my egts down while running a tune I keep mind on stage 1 (30hp) when towing and daily driving and my egts will get up to 1300 and After a while and I live in the mountains in California so either way I have to make a 2000ft climb when ever I take the horses out of town.
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Joined: Sep 2003
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From: North East Ohio
The guys that custom tune the 7.3's really do a lot of things different and better than what you get with the off-the-shelf stuff. They change things like throttle feel, throttle response, ICP, how crisp it gets-up and goes, shifting, stuff like that.
I wouldn't go with a custom tune expecting a power increase on a stock-ish truck over an off-the-shelf product, though. The real difference is in how it drives.
Add performance upgrades and you need to work with custom tunes for sure.
I wouldn't go with a custom tune expecting a power increase on a stock-ish truck over an off-the-shelf product, though. The real difference is in how it drives.
Add performance upgrades and you need to work with custom tunes for sure.
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Elder User
Joined: Sep 2013
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The guys that custom tune the 7.3's really do a lot of things different and better than what you get with the off-the-shelf stuff. They change things like throttle feel, throttle response, ICP, how crisp it gets-up and goes, shifting, stuff like that.
I wouldn't go with a custom tune expecting a power increase on a stock-ish truck over an off-the-shelf product, though. The real difference is in how it drives.
Add performance upgrades and you need to work with custom tunes for sure.
I wouldn't go with a custom tune expecting a power increase on a stock-ish truck over an off-the-shelf product, though. The real difference is in how it drives.
Add performance upgrades and you need to work with custom tunes for sure.
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From: Bahstun
you wont get a lot from stock sticks no matter what tune you buy
for EGTs, are you sure your up pipes and intake have no leaks?
Are you running at high RPMs up those hills? low RPMs means higher EGTs
What is fuel pressure? too low and injectors starve and your EGTs can climb up faster because your not spooling the turbo
for EGTs, are you sure your up pipes and intake have no leaks?
Are you running at high RPMs up those hills? low RPMs means higher EGTs
What is fuel pressure? too low and injectors starve and your EGTs can climb up faster because your not spooling the turbo
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Elder User
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I'm pulling them at 1800 - 2400 depending on which hill I'm climbing with a steady 10 pounds of boost then some spots 15-17 psi. And iv checked fuel pressure on a scanner and i believe it was in spec and I tried to hook up my Mac fuel pressure gauge but I think I need a adapter cus I had it on there but kept leaking fuel. But I think it got up to spec. I can't remember what numbers I got. And I haven't seen any signed of exhaust leaks or intake leaks
Lead Driver
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From: Bahstun
PCM does not read fuel pressure so your scanner cant read it.
check pressure at WOT in 3rd and it should not be lower than 45 PSI
get it up to 3000 RPM so it can breathe
Intake needs to be tested with 20 PSI of air and using soapy water to find the leaks.
ehaust can be done with a leaf blower and soapy water
check pressure at WOT in 3rd and it should not be lower than 45 PSI
get it up to 3000 RPM so it can breathe
Intake needs to be tested with 20 PSI of air and using soapy water to find the leaks.
ehaust can be done with a leaf blower and soapy water
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Elder User
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I could be wrong but I'm pretty sure the pcm dos some sort of calculation for fuel pressure because iv done it on both of my obs 7.3s with a snap on scanner and was able to get fuel pressure I believe it was it the 600 psi range. And I can check my intake for leaks but my exhaust is tight. When I rebuilt the turbo I cleaned everything and applied copper silicone then I just have a 3 inch down pipe to 4 inch straight pipe that's all welded and don't see any soot leaking out