I'm getting knock with meth...
- Thread starter ddlopes
- Start date
Ok I've absolutely proven the meth sprays exactly when the control unit calls for meth. I changed the start and full on spray points at several different psi and there was not one issue. Since I used the clear line I was also able to see what the meth was doing in the line before and after spraying. And the meth inside the line always stayed up by the nozzle prior to and after spraying. So there's not an issue with the line bleeding meth back towards the pump. There's also no leaks at any fitting, no kinks on any line and no leaks on any line as well. So it appears the system is working as intended. I completely flushed the meth tank and filled it with the supplier I normally use. The meth that was in the tank before was from a speed shop less then a mile from my house. The place where I usually go to is about a 30 minute drive away so I tried the place close to my house. Hopefully this cures the knock because the only other thing I could think of would be spark plugs. But they only have around 1500 miles on them.
Your not on the same tank of gas still are you?
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ddlopes said:
Soooo I think I said before, burn through this tank of gas and reassess... a lot of those octane boosters are not consistent... I don't care with the market brochures say...
Do you have E around you? If you do a couple gallons will help significantly with knock until you get a new tank of gas.
If Brad is tuning around a bad tank of gas then it's a waste of your time and his.
Right now I am at 15psi of boost demanded with 20psi+ boost spikes and 28 degrees of spark.
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I don't have E85 here. I've got a 1/4 tank of gas left in the tank. I'll burn it up tomorrow and refill with 93. Then retest... I don't drive the car often so that's why it's taken so long to burn up a full tank of gas. I've had the car for 3 years and only put on 3800 miles. Thanks again SBS!
So we finally found the culprit of the knock with Brad's help and patients. After going through several different scenarios of what could be causing me to have knock even though I'm running 100% meth it turned out to be bad meth. Brad also did his magic messing with the fuel in the tune as well. I'm seeing approximately 50 degrees of temperature drop according to the IAT sensor. And I'm finally seeing cooling in first gear as well. Before I wasn't see cooling to later in the gears. I would like to say thanks to everyone for helping me. And especially Brad for everything he's done get this car to pull like never before!!!
ddlopes said:
It is not uncommon. Im 90% sure my meth is also stale-ish. I mix 30-70 and after being away for 3 weeks I noticed my sho having issues maintaining spark. after adding 2 bottles of heet to my reservoir in the car the issues dissipated until is filled it this week for data logging.
i do not think i sealed the VP can enough, or the pump i used introduced some sort of contaminant. I am revising my pumping methods to see about avoiding that.
That's some Great news and hopefully you can start enjoying your SHO.
@ Trophersho did notice that your Methanol pale was somewhat different!!!
I think for future reference we might need to start checking the validation and authenticity of any such Methanol.
Here's mine and pretty Fresh indeed with expiration date and all. Z
@ Trophersho did notice that your Methanol pale was somewhat different!!!
I think for future reference we might need to start checking the validation and authenticity of any such Methanol.
Here's mine and pretty Fresh indeed with expiration date and all. Z
ZSHO said:That's some Great news and hopefully you can start enjoying your SHO.
@ Trophersho did notice that your Methanol pale was somewhat different!!!
I think we need to start checking the validation and authenticity of any such Methanol.
Here's mine and pretty Fresh indeed with expiration date and all. Z
I will look and post a pic. I REALLY think I dicked it up myself. I have not been storing the pump, and pump lines in a clean bag or anything. it is possible some sort of contaminant got in.
ddlopes said:
They do recommend a HARD container with a hard seal. I may have not sealed mine all the way or purged the pump and let some stale stuff back into the can and it reacted or went stale by association .. dunno. Buying a new can today as i JUST pumped dry this morning .