AMS tuning... advice????
#21
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$900+ for a tune sounds way to high with MS. I know when I had Jerry @ DIYAutoTune tune my car 2 years ago I paid about 400$ for my tune. I figure when my built motor is running correctly it will be a little more then that to get re-tuned, but that will be because I am going for a good bit more power and have a more complicated setup.
#26
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Good price and good equipment. How far "back" are you from MBT or detonation? You're still 20whp under FM's advertised FMII output numbers...which is typical for every FMII car I've seen on a dyno. Still, its a fast car though.
#28
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as far as the dyno, it said mustang dyno on it... they have a new location in west chicago, moved from arlington heights.
as for detonation, i told him to put it at a safe DD tune, so he did and said he has no worries... he also said it was a clean pull the whole time and ran well. but he did say if i am ever on a road course to put like 100 octane gas in there... but i wont be on a road course.... FOR A WHILE
as for detonation, i told him to put it at a safe DD tune, so he did and said he has no worries... he also said it was a clean pull the whole time and ran well. but he did say if i am ever on a road course to put like 100 octane gas in there... but i wont be on a road course.... FOR A WHILE
#29
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That's what I was waiting for. Not too shabby. Time wise and price wise, that sounds pretty reasonable. Congrats!
Now HKSturboMiata needs to post his numbers so we can see what that silly GT30 does.
Now HKSturboMiata needs to post his numbers so we can see what that silly GT30 does.
#35
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Most of the time "tuners" shove the WB in the tail pipe, post cat, and guess how effective the cat converter is. I wouldn't dare do this on a track car with a cat.
#36
I can hang the tach at 6krpm in 6th and not worry about the engine coming apart.
umm you could run a little more timing in the cells you would be in while "hanging @ 6k in 6th" (which would be high rpm/ med. load) compared to wot. if by "hanging" you mean holding it at 6k, it doesn't seem like you would need wot. but i usually don't cruise at that speed, so i'm not positive. i know i can cruise 4th (which is like your 5th) at 6k with approx. 50-60% throttle
Most of the time "tuners" shove the WB in the tail pipe, post cat, and guess how effective the cat converter is. I wouldn't dare do this on a track car with a cat.
umm you could run a little more timing in the cells you would be in while "hanging @ 6k in 6th" (which would be high rpm/ med. load) compared to wot. if by "hanging" you mean holding it at 6k, it doesn't seem like you would need wot. but i usually don't cruise at that speed, so i'm not positive. i know i can cruise 4th (which is like your 5th) at 6k with approx. 50-60% throttle
Most of the time "tuners" shove the WB in the tail pipe, post cat, and guess how effective the cat converter is. I wouldn't dare do this on a track car with a cat.
not trying to bust your *****, but i hate mis-information on the net, and especially on forums i like. also it's pretty ridiculous to assume that because you tuned your own personal car, (only 1 car at that) that it's easy.
Last edited by spoolin2bars; 08-14-2010 at 01:14 PM.
#37
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If I had a proper trigger wheel I'd put 3* of spark back into it. I don't trust the timing belt, the 2-tooth wheel, nor the heat-soak. I've also checked AFR on 3-dynos and determined from the Exatorq/Mustang dyno that my LC-1 is .1 leaner than reality when measured from the calibration gas. When compared to the LC-1, there was a .4 difference on the DD in Austin, no difference on the Exatorq Mustang in Garland, and 1.5 difference from BEGi's dyno (at the San Marcos shop) to reality.
I don't think tuning is "easy", nor do I think I'm an anywhere near an expert, but I affirm that tuning fuel and spark is not a black-art or mystery. Its a straightforward set of rules and allowances for the shortcomings of MS and the Miata electronics. I've tuned 4-total FI cars as favors for friends and they're all still running.
#38
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watching chris tune my car was pretty interesting. he does these weird routines with the throttle at different rpm, makes a change, then does some other rhythmic routine... its not til later do the redline pulls happen... you can really tell its his day job lol
#40
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i will... ill post my whole msq for the guys looking for a base map with a similar setup... ill grab the msq when i change my spark dwell time for my brand spanking fresh COPs
i gotta scan the dyno chart, tried to photograph it... epic FAIL
i gotta scan the dyno chart, tried to photograph it... epic FAIL