E30?? Also, critique my maps.
09-07-2017, 06:01 PM
#1
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E30?? Also, critique my maps.
Alas, I resolved an ongoing issue which I shamefully overlooked. Overboost protection had been set to 150 kPa... fixed that.
Also re-tuned my AE which was bogging down nicely on heavy accel.
Overall, the tune is still in need of a LOT of improvement. Fuel VE still needs improvement.
But what I am looking for is anything else that might just STAND out as being erroneous? Before, I noticed the kPA was maxing out at 150 over and over.
Anything stand out?
Please do not hold back... I want to take criticisms constructively!
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Also, what are the current thoughts on running an E30 tune? Just got one for the FiST and gotta say, it's pretty impressive.
Also re-tuned my AE which was bogging down nicely on heavy accel.
Overall, the tune is still in need of a LOT of improvement. Fuel VE still needs improvement.
But what I am looking for is anything else that might just STAND out as being erroneous? Before, I noticed the kPA was maxing out at 150 over and over.
Anything stand out?
Please do not hold back... I want to take criticisms constructively!
---------------------
Also, what are the current thoughts on running an E30 tune? Just got one for the FiST and gotta say, it's pretty impressive.
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09-07-2017, 09:15 PM
#3
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Good question. I wonder why so many people in the FiST community opt for e30 over e85...
Could the increase of ethanol require more out of the fuel pump? If so, maybe this is why people opt for e30 over e85.
Edit: Indeed that is so, it requires much more out of the fuel pump. I guess the components can all handle it? Hoses etc won't deteriorate rapidly faster due to the ethanol?
Could the increase of ethanol require more out of the fuel pump? If so, maybe this is why people opt for e30 over e85.
Edit: Indeed that is so, it requires much more out of the fuel pump. I guess the components can all handle it? Hoses etc won't deteriorate rapidly faster due to the ethanol?
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09-08-2017, 07:01 AM
#6
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Scanned through the log while having my morning coffee. Nothing looks crazy wrong to me but I'm not quite as experienced as some of the guys here.
One thing that seemed a little off is that your Air Temp never fluctuated within 4 degrees (83-87), even when in boost. Your air temp correction stays pretty steady around 97%. I know that the air temp correction table changes through different firmwares and this was something that caused me some small headaches as I would start driving in colder temperatures in fall. May be something worth looking into, I know there was a good thread about it in MS forum on here you can search for.
One thing that seemed a little off is that your Air Temp never fluctuated within 4 degrees (83-87), even when in boost. Your air temp correction stays pretty steady around 97%. I know that the air temp correction table changes through different firmwares and this was something that caused me some small headaches as I would start driving in colder temperatures in fall. May be something worth looking into, I know there was a good thread about it in MS forum on here you can search for.
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09-08-2017, 09:29 AM
#7
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Thanks a bunch! Ill look into that. I have struggled with erradic IATs before, and even though these look good, they are almost peculiarly too good.
Well.. i think I may have found something..
Really trying to find out why after hitting boost and returning to 0% throttle the AFRs slowly begin to climb and climb. Sometimes I think this is a downshift and engine breaking. Would that appear as such?
Also.. in that event there is very high vacuum and I am running a catch can setup. PCV and breather tee into input line of can. Can stuffed with copper scrubby. Outlet routed to turbo inlet post filter. Is the vacuum pulling oil from the can? The can is getting collecting a few oz per 1000 miles. I see two possible solutions.. a restrictor on the outlet going to turbo inlet. Or simply a breather filter on the outlet, but then I'm not really pulling fumes from the crank case
Thoughts?
Well.. i think I may have found something..
Really trying to find out why after hitting boost and returning to 0% throttle the AFRs slowly begin to climb and climb. Sometimes I think this is a downshift and engine breaking. Would that appear as such?
Also.. in that event there is very high vacuum and I am running a catch can setup. PCV and breather tee into input line of can. Can stuffed with copper scrubby. Outlet routed to turbo inlet post filter. Is the vacuum pulling oil from the can? The can is getting collecting a few oz per 1000 miles. I see two possible solutions.. a restrictor on the outlet going to turbo inlet. Or simply a breather filter on the outlet, but then I'm not really pulling fumes from the crank case
Thoughts?
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09-08-2017, 07:33 PM
#8
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For the Fuel after returning to 0 throttle, do you have overrun fuel cut turned on? This will cut fuel all together after letting off the throttle. It will only turn fuel back on when you get back on the throttle or the RFM dips too low. It will cause more engine braking since the wheels are forcing the engine to spin since there is no combustion since theres no fuel. Think most leave it on though. I have it on on my Exocet with no issues but off on my J32 Miata since I don't like AEMs implementation.
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09-09-2017, 02:53 PM
#9
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Overrun Fuel Cut is turned off, so we can eliminate that as the source..
Hmm.. still pretty stumped..
we do have a fairly similar setup... '94 with DIYPNP2 + FM No electronics kit, mind posting one of your logs?
Hmm.. still pretty stumped..
we do have a fairly similar setup... '94 with DIYPNP2 + FM No electronics kit, mind posting one of your logs?
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09-10-2017, 07:43 AM
#10
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I don't have any logs more than just a single pull so not really able to show the same stuff you are asking about.
Posting your tune would probably be the most helpful. If you have overrun turned off, you want to look at the bottom rows of your fuel table. They likely are much lower than the rest of the map causing the AFR to keep going up like it is. You just need to make sure theres still enough fuel there for when you are very lightly on throttle but otherwise keeping it lean isn't that big of a deal. I just tried to get it somewhat right for very light throttle then turned on fuel cut to take care of when I'm off throttle. Would be lot easier to help with the tune.
Posting your tune would probably be the most helpful. If you have overrun turned off, you want to look at the bottom rows of your fuel table. They likely are much lower than the rest of the map causing the AFR to keep going up like it is. You just need to make sure theres still enough fuel there for when you are very lightly on throttle but otherwise keeping it lean isn't that big of a deal. I just tried to get it somewhat right for very light throttle then turned on fuel cut to take care of when I'm off throttle. Would be lot easier to help with the tune.
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