My awesome daily project 35mpg/150whp highway donut
10-10-2012, 03:30 PM
#323
Supporting Vendor
iTrader: (33)
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,659
Total Cats: 134
How exactly are CKP and CMP wired to VVTuner?
Do you see RPM in MyVVT?
How exactly are CKP and CMP wired to MegaSquirt?
What model MegaSquirt hardware are you running?
Do you see RPM in MyVVT?
How exactly are CKP and CMP wired to MegaSquirt?
What model MegaSquirt hardware are you running?
Reply
0
0
10-10-2012, 03:35 PM
#324
Elite Member
iTrader: (10)
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,979
Total Cats: 356
He is running the Enhanced MS2.
His adapter harness looks like this:
I included a dummy "loopback" DB-15 connector that connects pin 1 with 3, and 2 to 4. My understanding is that the engine runs when he has the dummy installed on the harness instead of the VVTuner, and no RPM when he installs the VVTuner.
Trey, you need to use the VVTuner software to set the trigger output on the VVTuner to NB2 inverted.
His adapter harness looks like this:
I included a dummy "loopback" DB-15 connector that connects pin 1 with 3, and 2 to 4. My understanding is that the engine runs when he has the dummy installed on the harness instead of the VVTuner, and no RPM when he installs the VVTuner.
Trey, you need to use the VVTuner software to set the trigger output on the VVTuner to NB2 inverted.
Reply
0
0
10-10-2012, 07:00 PM
#327
Tour de Franzia
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
The car drives good. How can I check to be sure the VVT is actually working and adjusted correctly?
Man this is great, 80mph at 3600rpm is nice to have again, this will be a great road trip car. I got it road tuned and PW is signifcanly lower in cruise at 80mph, over one point and 500rpm lower. I expect a significant increase in fuel economy. I will put more spark in it later because right now it's very slow, lol. Although slow, it drives better and there's no more smoke.
Man this is great, 80mph at 3600rpm is nice to have again, this will be a great road trip car. I got it road tuned and PW is signifcanly lower in cruise at 80mph, over one point and 500rpm lower. I expect a significant increase in fuel economy. I will put more spark in it later because right now it's very slow, lol. Although slow, it drives better and there's no more smoke.
Reply
0
0
10-10-2012, 07:22 PM
#328
Tour de Franzia
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
So here is some weird ****. The engine was puking oil out the oil-pressure sender port. When I tightened that up, I broke-off the connector. So, it's not connected but my oil pressure gauge still works. Um...what?
Reply
0
0
10-10-2012, 07:25 PM
#329
Tour de Franzia
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
How do you guys recommend I check-up on the VVTuner to make sure there are no sync problems? The loss-sync counter in MLV shows nothing so hopefully I'm home free.
Is the out of the box table for the VVtuner optimized for the cam, or should I look for more power on the dyno/higher AFR (more air = more power)
Is the out of the box table for the VVtuner optimized for the cam, or should I look for more power on the dyno/higher AFR (more air = more power)
Reply
0
0
10-11-2012, 01:10 AM
#332
Tour de Franzia
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
I don't like this 3000rpm dip in VE:
I don't have endless time on the dyno to play with it and since I can't do it all from one computer, simutaneously, I'm hesitant to jack with it. However, I wonder if I can get rid of that dip in efficiency by adding some cam angle at 3k?
Reply
0
0
10-11-2012, 01:24 AM
#333
Look here: https://www.miataturbo.net/megasquir...-tuning-64590/
I'm currently running something like Y8s' table. I don't have that drastic drop in VE at 3400.
I'm currently running something like Y8s' table. I don't have that drastic drop in VE at 3400.
Reply
0
0
10-11-2012, 01:51 AM
#336
Tour de Franzia
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
I was under the impression that once someone figured-out the best table, that was the only table to use considering all stock VVT cams are the same. Is this wrong?
Reply
0
0
10-11-2012, 02:04 AM
#338
Tour de Franzia
Thread Starter
iTrader: (6)
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,085
Total Cats: 375
I need to stop comparing this to "advancing the cam gear on my track car" because the two are different animals. I made 5 new VVT tables I'm going to try tomorrow and see which ones yeild the largest VE values. I also hope this fixes the AC idle issue which is back, but different. That last engine was definitely in bad shape, this one idles significantly better.
Reply
0
0
