Dyno Tuning, Take a Look FM we want your timingz
03-26-2008, 10:04 PM
#22
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03-27-2008, 07:02 PM
#26
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You say "even" a Link. The Link is a great ECU, but it's just getting a little long in the tooth, and it's only available from FM for the 94-97 cars. If you've got a newer car, it's Hydra if you're buying from them, or maybe Voodoo.
I'll break it down for ya:
Link 16x16 $1700
Hydra Nemesis 32x32 $2000
Megasquirt 12x12 $300
Hmmm.... 12x12 doesn't seem so bad anymore. And to be perfectly honest, with the 3d mapping, it's fairly easy to get a good tune with "only" 12x12 due to the simplicity of our engine and relatively low redline of 7200rpm. The idea is a perfectly flat fuel curve... and the a 12x12 table on the Miata is perfectly capable... same for the spark table.
I'll break it down for ya:
Link 16x16 $1700
Hydra Nemesis 32x32 $2000
Megasquirt 12x12 $300
Hmmm.... 12x12 doesn't seem so bad anymore. And to be perfectly honest, with the 3d mapping, it's fairly easy to get a good tune with "only" 12x12 due to the simplicity of our engine and relatively low redline of 7200rpm. The idea is a perfectly flat fuel curve... and the a 12x12 table on the Miata is perfectly capable... same for the spark table.
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03-27-2008, 07:25 PM
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I've owned 2 links so I pretty much know how it works. My next one is going to be a MS, so I'm not bashing it. I just never knew there were only 12 columns. I simply find it surprising that the ms guys didn't use more columns. Would it really have been that difficult to write code for a couple more columns? Probably, otherwise they would have done it obviously. Still, I find it strange. My redline was 7800 btw, so I did really use all 16 of them 
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03-30-2008, 03:24 AM
#33
I also typed this table up by hand and started running it tonight. The car screams like a bat out of hell with the new table, what a difference. I can't wait to actually get it on a dyno now for some timing tuning. It pulls like a mf'n freight train and i'm not running that much boost, nor is my turbo very big 
Plus my stock suspension squats like woah when going WOT.
Plus my stock suspension squats like woah when going WOT.
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03-30-2008, 11:47 AM
#36
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I did an experiment today with Pauls map (posted on previous page) and compared it to mine that i'm using in the hydra.
You can see the difference pretty clearly. He runs more timing at high rpm but significantly less off boost. I was somewhat knock limited in boost above 6500 so I pulled some out. But I dont have ANY knock anywhere with the current map. East coast 93 gas.
You can see the difference pretty clearly. He runs more timing at high rpm but significantly less off boost. I was somewhat knock limited in boost above 6500 so I pulled some out. But I dont have ANY knock anywhere with the current map. East coast 93 gas.
MATT'S MAP -------------------------------------------------- PAUL'S MAP
Last edited by y8s; 01-12-2009 at 12:37 PM.
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03-30-2008, 02:25 PM
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Sumbitch... well, looks like Icantdo55 and I need to call Kienan back and tell him we need to come down and do 3pulls each again. I want to do a pull with the current spark table now that I've got my COPs in to see if there's any difference. And I'll do a couple pulls with Pauls/MikeRiv/5otherguys/andEverybodyElseButMe's spark table and see what I get.
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03-31-2008, 08:58 AM
#39
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sam i modded my map based on pauls....
the main difference really just being more timing in the transition between boost and vacuum and more advanced in low boost.
This still lands me at 14-15° timing at 12-15psi, where i was previously. what you really need to do is find a shop that has a loaded dyno and has experience tuning spark.
the main difference really just being more timing in the transition between boost and vacuum and more advanced in low boost.
This still lands me at 14-15° timing at 12-15psi, where i was previously. what you really need to do is find a shop that has a loaded dyno and has experience tuning spark.
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