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Old May 19, 2007 | 05:52 PM
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Load + RPM scaling...

This question goes out to those that have adjusted both load scalings and rpm scalings in ECUflash.

Looking at my screen shot, will stealing the resolution from where i did cause any noticeable problems (un-smooth acceleration, jerkiness, etc..) Is there better places to pull from?

I am putting up this snapshot of a log i pulled for load numbers...





I just realized that it is very hard to see where i pulled from.

On the load, i pulled the 10 and 90 to make a 345 and 380

On the RPM, i pulled 500 to make 8500

The reasoning behind this is because i am installing a EVO green turbo with cosworth cams and as of now with my bolt ons, i hit loads as high as 345. I will be revving to 8500 in fourth to cross the line at the track as well.

Last edited by electricevo; May 21, 2007 at 09:45 PM.
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Old May 19, 2007 | 07:02 PM
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nightly bump..
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Old May 19, 2007 | 07:48 PM
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why add 8500 if you are using the same timing there as 7500? That is what the 11000 is for and would do the same job.

Also what boost level are you running to hit 345 load?
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Old May 19, 2007 | 09:58 PM
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why add 8500 if you are using the same timing there as 7500? That is what the 11000 is for and would do the same job.

Also what boost level are you running to hit 345 load?


I have just rescaled the columns, i have not tuned for it yet, as the new turbo is not in yet. I am trying to get this part correct before i put it on.

I run 26 psi on race gas to hit 345 load at 3550rpm.
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Old May 20, 2007 | 07:38 AM
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I agree with razorlab about the 11000 doing the same job as the 8500 doing the same job. From 7500 to 11000 could be the same as 7500-8500-11000. An RPM resolution improvement between 3500 to 4500 might be of more benefit at peak torque.
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Old May 20, 2007 | 08:20 AM
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Originally Posted by electricevo
This question goes out to those that have adjusted both load scalings and rpm scalings in ECUflash.

Looking at my screen shot, will stealing the resolution from where i did cause any noticeable problems (un-smooth acceleration, jerkiness, etc..) Is there better places to pull from?

I just realized that it is very hard to see where i pulled from.

On the load, i pulled the 10 and 90 to make a 345 and 380

On the RPM, i pulled 500 to make 8500

The reasoning behind this is because i am installing a EVO green turbo with cosworth cams and as of now with my bolt ons, i hit loads as high as 345. I will be revving to 8500 in fourth to cross the line at the track as well.
sometimes you have to ignore the gospel on the forum and get out there and find out what works best for your car and driving style
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Old May 20, 2007 | 10:46 AM
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Originally Posted by electricevo
I have just rescaled the columns, i have not tuned for it yet, as the new turbo is not in yet. I am trying to get this part correct before i put it on.

I run 26 psi on race gas to hit 345 load at 3550rpm.
What intake are you using?? @ 25psi i hit a load of 260 with a AEM intake, with the stock intake it was about 270. Hitting a load of 345 @ 26psi is very high.

What are you measuring boost with??? Being that this is a EVO 9, that could have something to do with it.....but it still seems high. List your mods if you could...thanks!

CJ
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Old May 20, 2007 | 12:38 PM
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I
agree with razorlab about the 11000 doing the same job as the 8500 doing the same job. From 7500 to 11000 could be the same as 7500-8500-11000. An RPM resolution improvement between 3500 to 4500 might be of more benefit at peak torque.
I did this because i wanted my timing maps to be the same as my fuel maps. Shouldnt i do to one, what i do to the other? I really didnt want to pull resolution off that map to make the 8500 because 11000 either, but i thought it would be better to have both maps setup kind of the same.

What intake are you using?? @ 25psi i hit a load of 260 with a AEM intake, with the stock intake it was about 270. Hitting a load of 345 @ 26psi is very high.

What are you measuring boost with??? Being that this is a EVO 9, that could have something to do with it.....but it still seems high. List your mods if you could...thanks!

CJ
My mod list includes,

Hallman MBC Set at 24psi pump, 26-27 race gas
Self tune via ECUflash (less timing @ peak torque for that much boost)
Buschur 3' TBE
HKS RS intake
Nesei FMIC
HPF Behomoth LICP

NOt installed yet..

FP evo green with all the options
Cosworth evo 9 cams
GSC chromoly valve springs and retainers
Walbro FP
880cc injectors
ARP head studs
One step colder Iridium evo 9 plugs
And other miscellanous things
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Old May 20, 2007 | 12:48 PM
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What are you measuring boost with
I use the 2 byte load through evoscan for the load % and i use my Defi BF gauge for my actual boost in PSI (it has playback functions so i can see exactly what i hit)
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Old May 20, 2007 | 02:28 PM
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From: Jacksonville
Originally Posted by electricevo
I use the 2 byte load through evoscan for the load % and i use my Defi BF gauge for my actual boost in PSI (it has playback functions so i can see exactly what i hit)
Unless you have a calibrated boost gauge, which the DEFI is not, you cannot trust your boost guage. I'm sure it's not too far off, but it's deffinatly not perfect. Some boost gauges are a lot worse than others.

CJ
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Old May 20, 2007 | 02:35 PM
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The HKS RS muffles the MAF signal and you would actually be hitting LOWER LOAD cells, not higher. Your rescale of the LOAD RANGES was and is not necessary. You would be hard pressed to break 300kpa with that garbage intake filter.
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Old May 21, 2007 | 10:18 AM
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i hit like 280-290 at 26psi. i wonder if i stuck an apple in my muffler if i'd hit 340 then...
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Old May 21, 2007 | 02:48 PM
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i
hit like 280-290 at 26psi. i wonder if i stuck an apple in my muffler if i'd hit 340 then...
I dont know, thats what my datalogs show, i dont know what else to tell you. be skeptical all you want but with my set-up this is whats happening and i am trying to fix it.

How is it running 1000 cc on the stock ecu?
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Old May 21, 2007 | 02:59 PM
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Originally Posted by mplspilot
i hit like 280-290 at 26psi. i wonder if i stuck an apple in my muffler if i'd hit 340 then...
You also have a K&N and not a RS flower filter which is a high difference in mapping and load cell travel.
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Old May 21, 2007 | 03:04 PM
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It seems that the Buschur Racing filter pipe kit affects the MAF the least.

I have seen cammed stock turbos hit 345+ but it was at HIGH BOOST on E85. The datalog also made sense after the initial spike (345+) and then tapered to what I commonly see at high rpm with the amount of boost that was being held at redline. This wasnt with a BR filter for the record. My personal car hits 290ish at 23psi with the Green and an Exh cam, and would hit 285-290 regularly with the stock turbo and a 25psi spike.

Do you have a log to post up possibly so we can see the rest of the pull?

JB
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