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Old Jun 21, 2010 | 11:22 AM
  #46  
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smoother maps definitely make drivability overall smoother. Ive learned this with both fuel and timing map, but mostly timing map.

i take a slightly different approach, but everyone has their own style when it comes to mapping.

Heres how my maps look -- timing is on the right. as you can see with how i map i can see the timing curve by just looking off my map clear as day.

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Old Jun 21, 2010 | 03:44 PM
  #47  
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My car is running great, 200% better then at the start of this thread with great help from you guys.

What ive been doing is tuning 3rd gear WOT runs then using Maptracer to add/subtract timing in the areas with issues, i was able to run 5deg more at peak torque then before woot.

Once im happy with tuning my 3rd gear i will then smooth the rest of the map out from those points
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Old Jun 21, 2010 | 07:20 PM
  #48  
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From: Butt**** Nowhere
Also do WOT 1st, 2nd, 3rd, 4th gear shifts to redline like you would if you were racing it. Log a couple of those.

Then find an incline and floor it up the incline in 3rd and then 4th. You'll see the ecu hit different load cells as well.

You should also do a couple downshifts, and fifth gear low rpm WOT pulls, as well as steady state partial throttle pulls.

It's rough for us guys without a dyno. But not impossible.

The smoothing of your map will be a combination of all those.

Then you can drive your car and know that you've FULLY tuned the maps, not just 3rd gear WOT

Last edited by nightwalker; Jun 21, 2010 at 07:26 PM.
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Old Jun 21, 2010 | 07:34 PM
  #49  
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From: pa
Originally Posted by nightwalker
Also do WOT 1st, 2nd, 3rd, 4th gear shifts to redline like you would if you were racing it. Log a couple of those.

Then find an incline and floor it up the incline in 3rd and then 4th. You'll see the ecu hit different load cells as well.

You should also do a couple downshifts, and fifth gear low rpm WOT pulls, as well as steady state partial throttle pulls.

It's rough for us guys without a dyno. But not impossible.

The smoothing of your map will be a combination of all those.

Then you can drive your car and know that you've FULLY tuned the maps, not just 3rd gear WOT
yep. the 1 2 3 4 is very important to do to confirm the tunes safe.
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Old Jun 21, 2010 | 07:41 PM
  #50  
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Always check your top gears too. I've seen a lot of people that never check 5th or 6th gear and the car will hit load cells not tuned for and knock out the roof because timing was over advanced or too lean.
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Old Jun 21, 2010 | 09:10 PM
  #51  
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From: mnt vernon ny
Originally Posted by nightwalker
Also do WOT 1st, 2nd, 3rd, 4th gear shifts to redline like you would if you were racing it. Log a couple of those.

Then find an incline and floor it up the incline in 3rd and then 4th. You'll see the ecu hit different load cells as well.

You should also do a couple downshifts, and fifth gear low rpm WOT pulls, as well as steady state partial throttle pulls.

It's rough for us guys without a dyno. But not impossible.

The smoothing of your map will be a combination of all those.

Then you can drive your car and know that you've FULLY tuned the maps, not just 3rd gear WOT
+1
every gear has a difrent spool up speed and will hit difrent loads. 1st gear often will knock if you dont tune it. and to get the sample rates up just log the realy realy important stuff
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Old Jun 21, 2010 | 09:11 PM
  #52  
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From: mnt vernon ny
Originally Posted by tscompusa
smoother maps definitely make drivability overall smoother. Ive learned this with both fuel and timing map, but mostly timing map.

i take a slightly different approach, but everyone has their own style when it comes to mapping.

Heres how my maps look -- timing is on the right. as you can see with how i map i can see the timing curve by just looking off my map clear as day.

j.c dam this is beautiful.. n 500load.. envi!!!
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Old Jun 21, 2010 | 09:30 PM
  #53  
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Ive always had a knock issue taking of in 1st gear from a 2500 like i would in 3rd gear.

1st gear will knock but 3rg gear wont hitting the same load cells though
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Old Jun 21, 2010 | 09:47 PM
  #54  
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From: mnt vernon ny
Originally Posted by widge
Ive always had a knock issue taking of in 1st gear from a 2500 like i would in 3rd gear.

1st gear will knock but 3rg gear wont hitting the same load cells though
its usualy that the timing doesnt decrease fast enough of theres just 2 much in 1st gear. log load, rpm,tps, knock, afr, n timing alone so you can get faster sample rates.
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Old Jun 21, 2010 | 10:07 PM
  #55  
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I usually only log those items, ill go out again and do some 1-4 pulls and check logs and make changes, before i was chasing first gear knock and removed about 15degrees of timing in some spots and made no difference with the knock sum
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Old Jun 22, 2010 | 05:04 AM
  #56  
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From: Hungary
Originally Posted by nightwalker
Take a look at the 3D graph of your map, and use that to smooth the map out some more. It will improve your drive ability, and with a smooth map, you'll be able to run a little more timing.

here's the 3D graph of my map


I am running 3-4 more degrees in the 200 load and surrounding area than you are. The smooth map helps a lot, but takes A LOT of time to get right, because you want to make power and still keep it smooth. Takes some strategy, but worth it IMO.

Basically intake, full 3" turbo back exhaust, cams, stock 9 turbo, and hallman MBC spiking to 26 psi on 91 octane.

Hello

It is looks like pretty god you have and E8 with the 9 turbo and 26pi @peak ? What is your redline boost ? I have similiar setup as you have. Maybe coud you post your timing map in table too ? :$ thanks lot.
Anyway it a nice topic I like it I coud learn a lot from it too ! I had too smooth my timing map too.
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Old Jun 22, 2010 | 10:15 AM
  #57  
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From: Butt**** Nowhere
This is an American car on our ****ty 91 octane, so it won't be much help to you. I also have "other" little things done (can't recall all of them right now) that help smooth out the engine and allow me to run the map like I do.

The boost is 26 psi spike dropping to 23-24 depending on how the temps are outside.

Oh, and I have done a ton of porting and blending on my exhaust components. I wouldn't be able to explain it all on here.

This thread has all the neccessary tools for you to go out and get your own tune down tight.

Like I mentioned before, my map didn't happen over night. It takes a lot of time.
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Old Jul 8, 2010 | 03:29 AM
  #58  
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Heres my updated timing map, i wasnt able to get it finished as i blew a vac line off and had to go home and havent been back out so i know its a little choppy but let me know what u think if im heading in the right direction if it could be stronger in spots etc

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Old Jul 8, 2010 | 09:13 AM
  #59  
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From: pa
Originally Posted by widge
Heres my updated timing map, i wasnt able to get it finished as i blew a vac line off and had to go home and havent been back out so i know its a little choppy but let me know what u think if im heading in the right direction if it could be stronger in spots etc

need to see a log of pull, without knowing the loads the car hits its pretty much useless.
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Old Jul 8, 2010 | 07:29 PM
  #60  
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Yeh true that, ill grab a log but i can do a 3rg gear wot with little to no knock, it hits 250load by about 3750rpm then slowly comes back to about 200load by 7000rpm
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