using a m3 nozzle, 8KR

[bordeniuk]

i have a DO progressive meth inj system w/ a 2bar controller.

i have a m3 nozzle. i did a WOT pull in third gear and my scan gauge read 6KR at about 4500 RPM and by redline it showed 8KR. my wideband read 11.5 at redline would a bigger nozzle help with my knock? the mix i run with is 50/50.

i was boosting 19lbs on a 60-1 trim

[RiVal]

try 100% meth should deff take ur KR down
tune at 11.1-11.3 u might be able ta turn boost up withal rich AFR and 100percent meth


im not big turbo tho
hopefully big guys will post up


but deff try 100% guarantee that will help ya

[RiVal]

^don't listen to that guy



yeah a bigger nozzle and maybe mess with different mixes. the M3 is way to small for ur setup. ull need like 4 M3 nozzles lol
ppossibly dual or directport might be best

the M3 is for like 300hp
ur pushing way more than that brah

[uncommon©]

m9 is more suited for a 60-1

[bordeniuk]

thanks for your help guys. im going to order one shortly.

[parsonsproject]

Quote: Originally Posted by bordeniuk

i have a DO progressive meth inj system w/ a 2bar controller.

i have a m3 nozzle. i did a WOT pull in third gear and my scan gauge read 6KR at about 4500 RPM and by redline it showed 8KR. my wideband read 11.5 at redline would a bigger nozzle help with my knock? the mix i run with is 50/50.

i was boosting 19lbs on a 60-1 trim

Holy crap what was your KR before w/m? Are you sure the system is spraying and working correctly?

[bordeniuk]

well ive had the system since stock turbo and on 18 lbs falling off to 15 with 91 oct. it was around 6KR, since then i have found a gas station with 93 oct i use that now but its probably the same shitty 91 cause, when i was in florida with the car this past month i had no knock on my 60-1.

im going to be getting some race gas soon so i can rule out it maybe being audible knock.

[Drastic_Said]

if u have that much KR, then you need to fix your tune BEFORE meth.

all youre doing is patching it up via meth, and if you meth takes a shit after youre tuned on it (itll be more aggressive), shit is gunna hit the fan..

[smokin-ricers]

what drastic said ^^^^^^ it could be catastrophic failure if you don't


tune safely first without W/A then bring W/A into the mix and tweek everything till you get the most out of it

[Stealth RT]

Something is not right with your engine managment. Or engine.
As others have stated it's a good place to start.
As for a larger nozzle. You are spraying into a 3 inch pipe. From what I have seen I would not go over a m5 in any piping under 3.5 inches. If you need more than a m5 can provide than add a second nozzle. Start with a m2 as the second. Keep them a min of 3 inches apart.
Also the bigger you make the hole (larger nozzle/ extra nozzle) the higher your on-set duty cycle is going to have to be.
Good Luck

[bordeniuk]

Quote: Originally Posted by Stealth RT

Something is not right with your engine managment. Or engine.
As others have stated it's a good place to start.
As for a larger nozzle. You are spraying into a 3 inch pipe. From what I have seen I would not go over a m5 in any piping under 3.5 inches. If you need more than a m5 can provide than add a second nozzle. Start with a m2 as the second. Keep them a min of 3 inches apart.
Also the bigger you make the hole (larger nozzle/ extra nozzle) the higher your on-set duty cycle is going to have to be.
Good Luck

the charge pipe i have is 2.5 inch. i know my tune is a little off, i figured. i had a pretty good afr at redline (11.5)

i mean the knocl comes in at about 4300 rpms, a little after the turbos spools up

[Stealth RT]

Quote: Originally Posted by bordeniuk

the charge pipe i have is 2.5 inch. i know my tune is a little off, i figured. i had a pretty good afr at redline (11.5)

i mean the knocl comes in at about 4300 rpms, a little after the turbos spools up

2.5 sounds about right. My bad. I've been working on a DTE466 international and The plumbing for that monster is all that's in my head.

As for engine managment I was thinking timing, fuel. and air as a whole. Even something as simple as too hot a plug, or gap to wide.
Not saying I have a crystal ball that can see into your engine bay. Just an idea on where I would start.
Good Luck

[bordeniuk]

Quote: Originally Posted by Stealth RT

2.5 sounds about right. My bad. I've been working on a DTE466 international and The plumbing for that monster is all that's in my head.

As for engine managment I was thinking timing, fuel. and air as a whole. Even something as simple as too hot a plug, or gap to wide.
Not saying I have a crystal ball that can see into your engine bay. Just an idea on where I would start.
Good Luck

i get where your coming from. next weekend im doing a boost leak test and changing the plugs and maybe have a buddy help street tune it.

[Chino7385]

What does your timing look like? You should definitely fix your tune before you run meth. Im not sure what your tuning with but even with a good amount of meth and nice a/f's you can still get KR from running too much timing. "Pulling fuel" with any kind of mapclamp could cause this.


Man, its been awhile since i posted in here. I use to live in this section.

[lyncoo]

hey man at 24 psi i get .5 kr with a 11.1-11.3 afr, useing a m7 with the pump turned up a hair