i have the snow performance meth kit and it worked perfect with the stock blower.but now with the tvs,when it sprays the car falls on its face above 5000 rpm's.hpt isnt showing anything wrong though, no miss and no knock. even the air fuel still looks good and its not pulling any timing.car runs perfect off the meth though.any idea wuts goin on.i dont know if it helps but the plugs are two stages colder and gapped at 35.and the meth sprays before the throttle body.boost is at 22-23 psi. i got the blower spacer with the holes tapped for meth but i would like to figure this problem out first.thanks for the help

 

what % are you spraying?

 

What size nozzle and lines?

 

What timing are you running now? And do you have settings for how much the output is for the pump to the supercharger? I was running a 7gph nozzle with a 50/50 mix. My timing went from 18* without meth, to 24* with the meth involved. Look into the timing. I don't think it's cold enough for you to have to worry about the temps outside.

 

like asked already, what size nozzle you using. Also try gapping your spark plugs to 038, 035 is abit to tight for the set up.

 

My 2 step colder plugs needed to be gapped at .032 with that setup. Could be the 2.5 exhaust plugging you up.

 

I also suggest .032 plug gap

 

the 2.5 exhaust will hold up his hp but not stumble his engine.

do you have the vacuum block inline thing so the car doesnt pull meth out the whole time you drive down the street?
i had that problem, sounds similar

the 2.5 exhaust will hold up his hp but not stumble his engine.

do you have the vacuum block inline thing so the car doesnt pull meth out the whole time you drive down the street?
i had that problem, sounds similar

 

i though 3bar tunning and its like having a speed density to not worry about air density.

 

might be spraying too much meth too soon

 

i think its the 3gph nozzle,it was the smallest one that came with the kit.im running 18 degrees of timing and 11.9 afr,i wud like more but the car wont run right with the meth.

 

well the cheapest and easiest thing to do would be check the gap on the plugs.... so have ou tried that

 

yea there at .035,y do u guys suggest.032. because it runs fine without the meth and then like **** above 5000rpms with the meth.

 

mine are gapped at 0.032 with tvs, meth(7gph nozzle), timing as high as it can go, 60lb's, 3 inch exhaust.......and a bunch of other crap. I would give it a try, worst that can happen is it doesnt work. My car runs great

 

at that rpm with the tvs and spraying meth, there is alot of stuff going into your combustion chamber... with a smaller gap it might work out for you

 

new plugs. gap to .032. be happy.

/thread

 

That is a pretty vague statement.

 

Sorry should have stated as high as it adds power to, I wasn't trying to focus on that, more just explaining it for him to compare his setup to mine, sorry for not giving more detail.....

 

How many degrees you on? 25 up top?

 

Yah, but we pulled a 1 degree back before I put the car away for the winter as I had not upgraded to 3 inch from downpipe back and was getting knock above 6900rpm. I got the exhaust all installed but ran out of time to re tune before the snow flew. Snow sucks. Next year.

 

how much of a difference did you see going from 2.5- 3in on the downpipe

 

I was already at a 3 inch downpipe it was after that I was stock exhaust, ( so I cut the 2.5 inch flange and had welded 3 inch installed in late fall- zzp 3 inch downpipe with 2.5 exit is what I had originally. There was a difference but weather was shitty do I never did get to play around with it a lot. Main reason I installed 3 inch was due to knock I was getting at top end due to restrictions in exhaust ( I had damage done to it from driving gravel roads so where it went to 2.25 over the axle was probably down to 1.75 restriction.)

 

ok im gona try regapping the plugs.