[Msport335]

i'm FBO plus inlets running all out stock turbo e60 tune with AEM meth kit (1000cc nozzle) with 60/40 meth/water (measured by weight). controller is set to start spraying at 7.5psi and fully spraying at 18psi

has a slight hiccup mid pull but no codes thrown...... question is do i need more meth ? when i ran a 50/50 mix, there was no misfire and hpfp looked a little stronger

HPFP seems to dip pretty low

track day is friday night and need to get this sorted out so i can finally get well into the 11's with the drag radials/meth etc

http://www.datazap.me/u/msport335/e6...og=0&data=4-22

[Jeff@TopGearSolutions]

I think you posted before about your nozzle size, which I mentioned was too big.

If you are running 60% water that would also be a problem. IT's too much water and you could be quenching.

If you don't want to run a high concentration of meth then I'd recommend going to a smaller nozzle.

Other solution would be more meth concentration or setting you controller not to do full spray, so only 50% throughout.

With a proper nozzle, you can run 100% spray at 8PSI without issue even at 50/50 mix.

Your 1000CC nozzle is nearly 16 GPH, which is HUGE!

You need 12 GPH max, especially with that much water, AKA 750CC. More is not necessarily better, especially with water. The idea with Meth/water is to spray the least amount to achieve the results necessary.

Too much is not only wasteful but can also lead to quenching. Hope this helps.

[Msport335]

Originally Posted by Jeff@TopGearSolutions

I think you posted before about your nozzle size, which I mentioned was too big.

If you are running 60% water that would also be a problem. IT's too much water and you could be quenching.

If you don't want to run a high concentration of meth then I'd recommend going to a smaller nozzle.

Other solution would be more meth concentration or setting you controller not to do full spray, so only 50% throughout.

With a proper nozzle, you can run 100% spray at 8PSI without issue even at 50/50 mix.

Your 1000CC nozzle is nearly 16 GPH, HUGE!

You need 12 GPH max, especially with that much water, AKA 750CC. More is not necessarily better, especially with water. The idea with Meth/water is to spray the least amount to achieve the results necessary.

Too much is not only wasteful but can also lead to quenching. Hope this helps.

i'm running 60% meth by weight....i thought adding more meth content would help out the hpfp, but its only made it dip lower

[Jeff@TopGearSolutions]

Originally Posted by Msport335

im running 60% meth by weight

My apologies on the misread but I still stand firm your nozzle size is too big, especially with the amount of potential water that is spraying in.

For example, if you were to run just water the nozzle size would be 1 or 2 GPH.

You're at 16 GPH. So at full spray and 50/50 mix your still spraying 8 GPH of water. Too much water will lead to quench, spark plug blow out and misfires.

Increase the meth concentration and that will lighten the load on the HPFP too, you'll also be spraying less water.

Or cut right to the solution of the problem and run a 10-12 GPH nozzle.

If that doesn't fix it still, check your spark plugs and gap.

[Msport335]

Originally Posted by Jeff@TopGearSolutions

My apologies on the misread but I still stand firm your nozzle size is too big, especially with the amount of potential water that is spraying in.

For example, if you were to run just water the nozzle size would be 1 or 2 GPH.

You're at 16 GPH. So at full spray and 50/50 mix your still spraying 8 GPH of water. Too much water will lead to quench, spark plug blow out and misfires.

Increase the meth concentration and that will lighten the load on the HPFP too, you'll also be spraying less water.

Or cut right to the solution of the problem and run a 10-12 GPH nozzle.

If that doesn't fix it still, check your spark plugs and gap.

new plugs have been re-gapped to .018

[Jeff@TopGearSolutions]

Originally Posted by Msport335

new plugs have been re-gapped to .018

Cool, then you just need to fix the meth and re-test.

[Msport335]

Originally Posted by Jeff@TopGearSolutions

Cool, then you just need to fix the meth and re-test.

aren't most guys on this platform running BMS meth kit with the cm10 nozzle ...most of which are not running maxboost on stock turbos and making less power?

below are clean logs of the same 1000cc nozzle running 50/50 mix...hpfp liked it a bit better than 60/40

http://www.datazap.me/u/msport335/e6...og=0&data=4-22

[Jeff@TopGearSolutions]

Originally Posted by Msport335

aren't most guys on this platform running BMS meth kit with the cm10 nozzle ...most of which are not running maxboost on stock turbos and making less power?

below are clean logs of the same 1000cc nozzle running 50/50 mix...hpfp liked it a bit better than 60/40

http://www.datazap.me/u/msport335/e6...og=0&data=4-22

A typical FBO car with Meth (Normal boost, not dyno queen) will make 430-440WHP on average using a CM10 Nozzle.

You are running a 16 Nozzle, which is over 40% more meth/water so are you making 600WHP cause that would be the only reason to run that much?

I understand you had a clean log once before but then again, the only red flag in your setup that I can tell from here is the fact that you are running enough meth/water for almost 2 vehicles.

It's a quick fix to prove me wrong and then we can go onto look into other problems.

Instead of second guessing me, please reduce your nozzle/GPH/CC and see how your logs look, I'm very confident that would fix your issue.

I've also noticed anomalies in your STFT between both logs so something is going on with fuel. Whether the meth/water has to do it with or your HPFP I'm not sure.

That's why the easiest potential solution is adjusting your meth/water amount.

[Msport335]

Originally Posted by Jeff@TopGearSolutions

A typical FBO car with Meth (Normal boost, not dyno queen) will make 430-440WHP on average using a CM10 Nozzle.

You are running a 16 Nozzle, which is over 40% more meth/water so are you making 600WHP cause that would be the only reason to run that much?

I understand you had a clean log once before but then again, the only red flag in your setup that I can tell from here is the fact that you are running enough meth/water for almost 2 vehicles.

It's a quick fix to prove me wrong and then we can go onto look into other problems.

Instead of second guessing me, please reduce your nozzle/GPH/CC and see how your logs look, I'm very confident that would fix your issue.

I'll try that next... reduce the nozzle size back to the 500cc and set the controller to spray at 8-10psi

[Jeff@TopGearSolutions]

Originally Posted by Msport335

I'll try that next... reduce the nozzle size back to the 500cc and set the controller to spray at 8-10psi

500 or 750 would work well. I'm very confident.

CM10 is 630 FYI

Also FWIW I used to run an M7, then M10 then M12 and M14 nozzle.

After the M10, there was no benefits. I eventually switched to an M5 and M7 nozzle and everything was much improved.

The large nozzles have potential for poor atomization and large water droplets. The smaller nozzles atomize much better.

Down the road, you may want to consider two small nozzles. Guys who were really serious about methanol were running 3 or more small nozzles to ensure atomization.

[Msport335]

Originally Posted by Jeff@TopGearSolutions

500 or 750 would work well. I'm very confident.

CM10 is 630 FYI

cm7 i believe is 630
cm10 is 800

since im running 25/26 tapering to 19/20 i should now be in the 475-500whp range (hopefully!)

[Jeff@TopGearSolutions]

Originally Posted by Msport335

cm7 i believe is 630
cm10 is 800

since im running 25/26 tapering to 19/20 i should now be in the 475-500whp range (hopefully!)

I'm using this GPH to CC calculator.

http://www.convertunits.com/from/cc/min/to/gal/hr

[Msport335]

Originally Posted by Jeff@TopGearSolutions

I'm using this GPH to CC calculator.

http://www.convertunits.com/from/cc/min/to/gal/hr

switched to the 500cc nozzle and pulled a few logs... still getting slight misfire but no codes were thrown. 1st log i let off when i felt the misfire .....3rd log the stft in bank 1 spiked way up.... whats this mean...injectors gone/>

hpfp is still dipping very low

http://datazap.me/u/msport335/e60-v2...og=0&data=4-22

[ferocity02]

What plugs are you running? You could be blowing out the spark. On my turbo silverado running 50/50 meth/water I went to a colder plug and it started missing. Went back to a stock temp plug and it was fine.

[Msport335]

Originally Posted by ferocity02

What plugs are you running? You could be blowing out the spark. On my turbo silverado running 50/50 meth/water I went to a colder plug and it started missing. Went back to a stock temp plug and it was fine.

running the ngk 1 step colder gapped to .018 ...... everything was fine up until i tried a 60% meth/water mix ...thats when it started slightly misfiring.

have a feeling its injectors now

[Jeff@TopGearSolutions]

Yea that rail pressure is getting very low. It could be HPFP.

Are the injectors a recent index 12? IF not you should definitely change for good measure.

LPFP looks ok.

[Msport335]

Originally Posted by Jeff@TopGearSolutions

Yea that rail pressure is getting very low. It could be HPFP.

Are the injectors a recent index 12? IF not you should definitely change for good measure.

LPFP looks ok.

injectors are still originals ....index 6 ....car now has 75k miles on it

[Chromey]

i have the AEM kit and im running FBO 91 gas and using the large nozzle in the kit as AEM says that i should be..is it better to downsize? of is the AEM large nozzle ok

[Msport335]

Originally Posted by Chromey

i have the AEM kit and im running FBO 91 gas and using the large nozzle in the kit as AEM says that i should be..is it better to downsize? of is the AEM large nozzle ok

i would definitely downsize the nozzle and log

[Jeff@TopGearSolutions]

Originally Posted by Msport335

injectors are still originals ....index 6 ....car now has 75k miles on it

I'd change them for peace of mind. I changed my index 7 at 45K miles. At least 2 were on the way out by then.

[Msport335]

just had my HPFP and injectors all replaced by dealer last week.

tried running the 500cc nozzle and 60% meth with the e60 kill map and got the misfires again due to the hpfp dipping too low

today put in the 1000cc nozzle and 80% meth and no more misfire , hpfp doesn't dip as low either ...however STFT's get pretty negative towards high rpm.

so question is do i run pure meth and ramp in the progressive controller at a slower rate so trims don't run so negative or keep as is?

controller in these logs is set to 8 to start -12psi full spray

http://datazap.me/u/msport335/e60-v2...og=0&data=4-22

[natedog7700]

Looks like your trans is slipping into gear a little. Just something i noticed but maybe that's the way its supposed to look? Mine doesn't do that though...