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Meth injection issue Misfires

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Old Sep 1, 2014 | 09:14 PM
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Default Meth injection issue Misfires

so i hope someone on here might be able to help me i just installed a cartuning turbo kit with a meth setup and i have a ls6 intake so i was unable to tap the the nozzle where cartuning says to. so i tapped it to the front side of brian396 tb adapter and it works but at wot i am have a misfire on on 2&6 and then was able to flush the nozzle in a better and no my only problem is #6 at wot so i hoping someone else on here has dealt with alki on a ls6 setup and where they installed the nozzle


And another issue i am also having misfires on #1 at idle i have checked the plug wire and even went back to stock coils i'm boggled could i have done something wrong when i changed the valve springs? Thanks guys

Last edited by 08 pimpala ss; Sep 1, 2014 at 10:27 PM.
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Old Sep 2, 2014 | 12:14 AM
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Originally Posted by 08 pimpala ss
so i hope someone on here might be able to help me i just installed a cartuning turbo kit with a meth setup and i have a ls6 intake so i was unable to tap the the nozzle where cartuning says to. so i tapped it to the front side of brian396 tb adapter and it works but at wot i am have a misfire on on 2&6 and then was able to flush the nozzle in a better and no my only problem is #6 at wot so i hoping someone else on here has dealt with alki on a ls6 setup and where they installed the nozzle


And another issue i am also having misfires on #1 at idle i have checked the plug wire and even went back to stock coils i'm boggled could i have done something wrong when i changed the valve springs? Thanks guys
I'd move the spark plug to another one and the spark wires to another one as well to see if the misfire follows one or the other, then I would compression test it, but that's just me
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Old Sep 2, 2014 | 09:27 AM
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This is why I moved my nitrous out of the tb spacer..when I pulled the intake and sprayed you could visually see the nitrous no distributing close to equal. I moved the nozzle post tb and had a much better air saturation... I'm sure the same will apply for you.
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Old Sep 2, 2014 | 11:34 AM
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I had the same misfire condition when I installed my Cartuning kit with the LS6 intake and Meth injection and nozzle tapped into the Brian396 TB Adaptor. Kevin had me change out the MSD spark plug wires with OEM wires and that fixed it - did he mention that to you - it was just a weak spark - with the water and meth added it just would not fire off. I first thought it was my HS 1.8 RR also but that was not the case. Also buy fresh Meth and distilled water and mix your own 50/50, It works much better than the Washer Fluid.
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Old Sep 2, 2014 | 11:40 AM
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I don t get the msd wire issue though. They've been great on nitrous and e85 I don't see why they seem to be a issue when the turbo comes.
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Old Sep 2, 2014 | 02:49 PM
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Originally Posted by garhar
Also buy fresh Meth and distilled water and mix your own 50/50, It works much better than the Washer Fluid.
Having run turbo Buicks on methanol over the years, I strongly suggest using 100% methanol. Of course, that assumes that you're using a system that will tolerate it. I've always run Alky Control systems, which are designed for pure methanol, so I never had a problem.
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Old Sep 2, 2014 | 08:47 PM
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Originally Posted by garhar
I had the same misfire condition when I installed my Cartuning kit with the LS6 intake and Meth injection and nozzle tapped into the Brian396 TB Adaptor. Kevin had me change out the MSD spark plug wires with OEM wires and that fixed it - did he mention that to you - it was just a weak spark - with the water and meth added it just would not fire off. I first thought it was my HS 1.8 RR also but that was not the case. Also buy fresh Meth and distilled water and mix your own 50/50, It works much better than the Washer Fluid.

Yea man kevin actually brought u up he said u moved the nozzle and the missfire moved? And i have gotten rid of the msd wires using the 8.1 truck wires on the back and stocks on front back to stock coil packs from accels and i bought pure m1 meth from the local speed shop ran it straight same dam problem now he just told me had me buy a differnt plug ngk tr6 im sio sick of changing plugs with the 3in kit and the back manifold with heat wrap grrrr but im gonna try them in the morning
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Old Sep 3, 2014 | 11:59 AM
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Yea..I know it can be tough changing those plugs out. But after doing it a few times you will get it down. What plugs did you have in it while misfires were occurring? As I said, I use the NGK BR7EF which is one range colder than the TR6's with no issues gapped at .025.
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Old Sep 3, 2014 | 08:14 PM
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Originally Posted by supercatxr7
Yea..I know it can be tough changing those plugs out. But after doing it a few times you will get it down. What plugs did you have in it while misfires were occurring? As I said, I use the NGK BR7EF which is one range colder than the TR6's with no issues gapped at .025.
The br7ef are in there now the ones kev supplied with the kit and i'm having the misfires with and i have pulled them twice as by kevin to change the gap from .038 to.034 to.030 and now he told me to get the TR6 gapped to .030 i'm gonna take it apon myself and go with .028 in between u and him and i ordered the snow performance silicone mount for alki to put between tb and maf.. I knew this **** wouldn't be easy but **** i'm ready to pay someone to marry my problems!!!!!!!!
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Old Sep 4, 2014 | 09:37 AM
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Just switch to e85 and forget the meth
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Old Sep 10, 2014 | 08:55 PM
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Ok so an update by moving the meth to the silicone between the maf an tb misfire issue is fixed but now im still getting 1-2* of knock @wot wtf im ready to pull my hair out Could it be a fuel problem? I talked to a local Ls God it seems lol and said from what im telling him my fuel pressure is dropping and he would bet me if he put the car on the dyno that once he hit 4k the fuel presure would drop below 30psi that i probley need a boosta pump to increase voltage under boost to the fuel pump I dont know
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Old Sep 10, 2014 | 09:17 PM
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What is your air to fuel ratio under wot? Is the air to fuel leaning out or staying consistent?
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Old Sep 10, 2014 | 09:20 PM
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Originally Posted by 08 pimpala ss
Ok so an update by moving the meth to the silicone between the maf an tb misfire issue is fixed but now im still getting 1-2* of knock @wot wtf im ready to pull my hair out Could it be a fuel problem? I talked to a local Ls God it seems lol and said from what im telling him my fuel pressure is dropping and he would bet me if he put the car on the dyno that once he hit 4k the fuel presure would drop below 30psi that i probley need a boosta pump to increase voltage under boost to the fuel pump I dont know

I thought the turbo kit did come with a Fuel pump booster

The Racetronix fuel pump rewire kit is suppose to increase voltage by 15-20 % and from what i understand is supplied with the Turbo Kit.
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Old Sep 10, 2014 | 09:22 PM
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Originally Posted by Sint3k
I thought the turbo kit did come with a Fuel pump booster
No...comes with a racetronix fuel pump wire upgrade kit.
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Old Sep 10, 2014 | 09:38 PM
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I had a car that would get a lean + misfire code. I would hook up the fuel pressure gauge and it would read normal 45PSI. But when i would mash the gas the pressure would drop drastically. ALso when you would bypass it into a gas can the flow was very low compaired to after i installed a new pump. You may just have weak pump in general
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Old Sep 10, 2014 | 09:38 PM
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Originally Posted by Sint3k
I thought the turbo kit did come with a Fuel pump booster

The Racetronix fuel pump rewire kit is suppose to increase voltage by 15-20 % and from what i understand is supplied with the Turbo Kit.
Its installed that was one of the first things i did
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Old Sep 11, 2014 | 09:14 AM
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Out of curiosity, what injectors are you running and what's the duty cycle you're seeing in them?
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Old Sep 11, 2014 | 07:16 PM
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Originally Posted by LS1 Racing
Out of curiosity, what injectors are you running and what's the duty cycle you're seeing in them?
They are Deka 60lbers and i dont know what u mean by duty cycle something i can see with hp tuners?
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Old Sep 11, 2014 | 08:58 PM
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Originally Posted by 08 pimpala ss
They are Deka 60lbers and i dont know what u mean by duty cycle something i can see with hp tuners?
Well, with 60 lb injectors, you're not maxing out the injectors.

And to put duty cycle in layman's terms, it's basically how of the injectors capacity you're using at a given moment in time.

Yes, you are able to read this in HP Tuners.
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Old Sep 11, 2014 | 09:14 PM
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Originally Posted by LS1 Racing
Well, with 60 lb injectors, you're not maxing out the injectors.

And to put duty cycle in layman's terms, it's basically how of the injectors capacity you're using at a given moment in time.

Yes, you are able to read this in HP Tuners.
Should i monitor this? Could my problem that the injectors are two big and fuel pump cant keep up?
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