Ok I moved the nozzles so that they're in the not pipes now. But unfortunately I'm still getting 4.5 degrees of knock retard. I'm gonna shut the meth off and check for knock on a tune with not meth. I didn't have any before so I don't expect to see any now. But just wanna confirm it's only a meth tune issue. Now my rev 6 meth tune only had 1.5 degrees of knock retard. I can live with that but that tune leaves a lot of power still on the table. Here's a pic of my new setup. Both nozzles are installed after the wastegate mod.
I'm getting knock with meth...
- Thread starter ddlopes
- Start date
I took the car out and datalogged a non meth tune from 1st gear through 4th. There was only 1 degree of knock retard. I then loaded the rev 6 meth tune and only got 1.5 degrees of knock retard again from 1st gear to 4th. My next step is to pull the plugs and check them. I do have one question regarding meth consumption. I filled the windshield washer fluid jug to the top with meth. When I got back from the datalog I refilled the jug and noticed it used at least 18 -20 oz. of meth. I only sprayed meth for about 12 seconds using (2) 175 ml nozzles. Does that sound excessive?
glock-coma
New member
I have no experience with meth but that amount sounds excessive for only 12 seconds of use.ddlopes said:
Are you using a solenoid or check valve on your system prior to the nozzle?
quote author=TopherSho link=topic=8280.msg125575#msg125575 date=1504923613]
My car GOBBLES meth .. if i am hard driving i can drain the 3/4 gallon tank in a day. on topic, 1.5' knock is not really knock its the car sensing there will be knock if it goes any further and pulling back.
what was the spark value with the 1.5 kr ?
[/quote]
quote author=TopherSho link=topic=8280.msg125575#msg125575 date=1504923613]
ddlopes said:
My car GOBBLES meth .. if i am hard driving i can drain the 3/4 gallon tank in a day. on topic, 1.5' knock is not really knock its the car sensing there will be knock if it goes any further and pulling back.
what was the spark value with the 1.5 kr ?
[/quote]
@- ddlopes I want sure if this was referenced towards me!!!
I currently have a Alky-Solenoid which acts as a check valve on my current DPM Setup. Z
Here is my very own thread below.
https://www.ecoboostperformanceforum.com/index.php/topic,7881.0.html
I currently have a Alky-Solenoid which acts as a check valve on my current DPM Setup. Z
Here is my very own thread below.
https://www.ecoboostperformanceforum.com/index.php/topic,7881.0.html
I have a check valve right behind the nozzle... I go to the track and run all night on window washer tank of meth with plenty to spare.... 10 1/8 mile runs....
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
I'm gonna drain the meth tank and put some new meth in there. Just to eliminate that as a culprit. I bought meth from a different supplier than I usually do. But it was a sealed vp fuel metal jug. But gotta check everything. Hopefully I get to the bottom of it soon. This sucks...
Brad also has me datalogging all the DMR's for knock so we can see what cylinder is have knock retard...
Brad also has me datalogging all the DMR's for knock so we can see what cylinder is have knock retard...
Good find.
ddlopes said:
You need a better datalog... no knock.. which is great... better than your other logs... You switched to AJP huh? What octane gas are you using?
Unfortunately I spoke to soon. I got so excited that the problem was finally. LOL...
I took the care out again just to confirm the knock was gone. And it's back!!! Tomorrow I'm going through my whole meth system. I'm thinking there's a delay in the spray. My datalog showed my IAT started at 111 and was cooled down to 75 so I'm getting cooling. But the meth isn't cooling the air instantly like it should. So I'm going to check to see if there's a delay in the meth system. Also drain the meth tank. The other log that showed no knock was from me lowering when the meth started to spray. But it wasn't a full log as I stated. Hopefully tomorrow I'll finally get some insight to what the problem is.
I took the care out again just to confirm the knock was gone. And it's back!!! Tomorrow I'm going through my whole meth system. I'm thinking there's a delay in the spray. My datalog showed my IAT started at 111 and was cooled down to 75 so I'm getting cooling. But the meth isn't cooling the air instantly like it should. So I'm going to check to see if there's a delay in the meth system. Also drain the meth tank. The other log that showed no knock was from me lowering when the meth started to spray. But it wasn't a full log as I stated. Hopefully tomorrow I'll finally get some insight to what the problem is.
Ok... just an update ... I removed the Airaid and installed my homemade boost tester. Then removed both nozzles from the hot pipes and plugged both holes. I added some clear line to the existing snow performance red meth line. This is for testing purposes only. I wanna see exactly what's going on with the meth before and after I spray. I'll also be removing the passenger side tire and inner wheel well to check on the pump and solenoid for any issues. Hopefully today I'll find the issue and it'll help someone else from having to deal with all this bull!!! Thanks for all the help you guys are awesome!!