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Standalone Ignition Maps........

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51K views 93 replies 37 participants last post by  Prof315  
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#1 ·
I am playing with a few different cars right now, and was curious how aggressive people have been able to get there ignition maps on standalone managements. I am playing with MegaSquirt'N'Spark mostly, but am curious to see screen shots of any Ignition maps you have, from any standalone. I am looking mostly for maps based on RPM and manifold pressure. Here is one I started with that I got from someone. I have changed it some since this, but dont have access to that one.
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I am mostly playing with 8V's while I am learning the tuning process (Good to learn on a motors that are a dime a dozen!), so anything that I show will be from an 1.8 8V


Modified by patatron at 6:24 PM 1-10-2006
 
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#2 ·
Re: Standalone Ignition Maps........ (patatron)

Here's mine that I am currently running.
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2.0 ABA, ~10.5:1 compression here. TT276 cam and ITB's. About 45ft above sea level. I have never had MAP readings above 100kpa.

Modified by WolfGTI at 9:50 AM 1-12-2006


Modified by WolfGTI at 9:51 AM 1-12-2006
 
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#8 ·
Re: Standalone Ignition Maps........ (martyn_16v)

45 deg advance at low kPa is where it's AT! Funny what having total control of the management does for you, I now get excited about 45 deg adv and afr of 16:1. Gets you like 35mpg.....
I've got some of my MSnSe ignition maps saved ,but can't seem to get them to post correctly....off to try and try again....
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Okay, I'm retarded when it comes to resizing pics, can't get it done for some reason....

Modified by Andrew Stauffer at 11:17 AM 1-25-2006

Modified by Andrew Stauffer at 11:23 AM 1-25-2006


Modified by Andrew Stauffer at 6:30 AM 1-26-2006
 
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#18 ·
Re: Standalone Ignition Maps........ (ValveCoverGasket)

Quote, originally posted by ValveCoverGasket »
give it a shot
ive taken it up to around 12-13 psi with no issues (as far as spark goes) i had a really rich fuel map at that point though so it misfired a little from that.
spark should be good to go though
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Care to share your fuel map. 16vt is near completion and I'm debating on where to get msns with 4 bar map. Just need a basis to get it started.
 
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#20 ·
Re: Standalone Ignition Maps........ (martyn_16v)

Quote, originally posted by martyn_16v »
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9A, KR head and cams with 50mm inlet manifold.
EDIT: Running on UK 95RON fuel.

Hey Martyn, I was wondering what ignition table would be more likely to run on my stock 16v. I see that the one you posted here is different then the one on your write up. Is the one posted above a lot better than the other one ? Thank you
-Chris
Edit: Im also kinda curious why some people have so much advance down low ? Thanx


Modified by Captain16vGTI at 8:56 PM 2-19-2006
 
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#22 ·
Re: Standalone Ignition Maps........ (Captain16vGTI)

Quote, originally posted by Captain16vGTI »
Hey Martyn, I was wondering what ignition table would be more likely to run on my stock 16v. I see that the one you posted here is different then the one on your write up. Is the one posted above a lot better than the other one ? Thank you
-Chris
Edit: Im also kinda curious why some people have so much advance down low ? Thanx

Modified by Captain16vGTI at 8:56 PM 2-19-2006

Aah, I should update the writeup one then. That original one was made using the standard VW Scirrocco 16v timing map someone posted up on here, but it's a fairly conservative map (and a bit bumpy in places). This more recent one is miles better the motor is transformed into a totally different animal, and it's still not a very agressive advance, there's probably room for a bit more advance at WOT once i get it on the rollers (someday
Image
). It should be fine for a stock 16v
Image
 
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#23 ·
Re: Standalone Ignition Maps........ (martyn_16v)

Quote, originally posted by martyn_16v »

Aah, I should update the writeup one then. That original one was made using the standard VW Scirrocco 16v timing map someone posted up on here, but it's a fairly conservative map (and a bit bumpy in places). This more recent one is miles better the motor is transformed into a totally different animal, and it's still not a very agressive advance, there's probably room for a bit more advance at WOT once i get it on the rollers (someday
Image
). It should be fine for a stock 16v
Image



I just wanted to let you know that I tried this timing map and so far its awesome. I need to tune my fuel around it a tiny bit but its a great starting point. Thanks Martyn http://****************.com/smile/emthup.gif
-Chris
 
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#25 ·
Re: Standalone Ignition Maps........ (martyn_16v)

Looking at a lot of those maps, you guys are running really conservative timing at WOT..
Generally you can find the Max Advance on a dyno with ease but on the street it becomes a little harder.. My suggestion, bring up the timing until you hear any pinging at all under load at WOT..
Back off 2deg's at a time until you dont hear it .. and i'm not talking massive piston melting ping, listen for the light stuff, bring the timing in 2-4de'gs at a time until you hear it. You wont blow up a motor with some light knock just be careful about it.
Once you find the detonation point bring the timing back 2deg's if it stops pull another 1-2deg's and you've found the sweet spot. Some say as much as 5deg's from knock to keep things nice and safe but given most people who tune their cars run specific fuel all the time its not likely you'll throw a tank of 87octane in if you tuned for 94.
I've tuned 1.8L 8V's with 18psi of boost at 16degs advance at max boost. The same motor at WOT not under boost will sing happily along at 32-36deg's at the torque peak. After you pass peak torque you can often add a degree or two of timing to keep the horsepower coming.
Every motor is different though.
 
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