[stratos_335]

Hello all,

Recently my Labonte failsafe failed (sic) and I replaced it with a Snow Performance failsafe. Installation was easy. Many thanks to cn555ic and enrita for their instructions on installing it.

Here is a log from tonight. My car is full FBO, 7-29 maps (autotuning off), 80-20 meth mixture, M7 injector, pps Vishnu meth kit, fully catless custom exhaust.

Ambient temperature 7 degrees C (45F)




1) I got very high IATs (44C - 111F). Why? On my last dyno there was some meth leakage at the front of the car. Tomorrow I'll remove the injector and clean it up an check for a leak near the solenoid.

2) some knock events. On some previous log there was no knock events at all and my car hit 15.5 degrees of ignition retard. Now it didn't get over 10.5

3) meth readings (meth injection flow) was 34 instead of 14-15 with my Labonte failsafe. Is that normal? Injection mode was set to 11.5? Too high? Too low?


Here is my previous log before changing the failsafe:




NLS FTW. A lot of flames during upshift and no loss of boost

[cn555ic]

Hmmm 34 seems a bit high...I have a M10 nozzle and it shows values of 26...I would also recommend you run a higher nozzle like a M10 instead of the M7 nozzle. Also you need to make sure there are no leaks because from your reading it seems there might be a leak somewhere...M7 should show values of 18-19

You first need to check the lines to make sure there are no leaks...Iats should not really rise like that...I would assume a bigger nozzle would put that in check and also solving the leak issue...Get the M10 in there

[Tzu]

34 indeed looks high, as your new flow sensor looks like its reading between 33-35. Try 28 and log again.

[stratos_335]

Originally Posted by cn555ic

Hmmm 34 seems a bit high...I have a M10 nozzle and it shows values of 26...I would also recommend you run a higher nozzle like a M10 instead of the M7 nozzle. Also you need to make sure there are no leaks because from your reading it seems there might be a leak somewhere...M7 should show values of 18-19

You first need to check the lines to make sure there are no leaks...Iats should not really rise like that...I would assume a bigger nozzle would put that in check and also solving the leak issue...Get the M10 in there

I will install my M10 nozzle tomorrow because the sun set and there is no light for the installation. Thanks for the feedback

Originally Posted by Tzu

34 indeed looks high, as your new flow sensor looks like its reading between 33-35. Try 28 and log again.

You mean to change the injection flow to 28?

[enrita]

yes put 28. You running map 4 right? you 100% sure that you are flowing?

[cn555ic]

Originally Posted by enrita

yes put 28. You running map 4 right? you 100% sure that you are flowing?

Enrita on a Snow Performance safeinjection the flow values are just a drop higher than the Labonte...Its no where close to how high your Aquamist unit is...A M7 nozzle should show flow somewhere from 18-19% and a M10 should flow around 27-29...Being that he is showing a flow value of 33-34 I would think there is some leak for sure because of the high flow value and the logs showing IATs not steady and rising.

[enrita]

Scary with leaks on meth especially in engine bay.

[stratos_335]

Thank you for the feedback. First thing I'll do in a few minutes is to add water to the mixture and get in under 60-40 that is not flammable.

Maybe high flow rate indicates a leak. And you are wright, I used to have 13-15 with my Labonte failsafe and raised to 18-20 by itself which is also an indication for a leak.

LOL, i found something to do for the weekend

[tscdennab]

I don't think it sprays meth into the charge pipe, it is probably lost on the way. The failsafe should also detect overflow/leakage. With Aquamist HFS-3 and 2x0.7 nozzles the IAT does not exceed 22 degrees Celsius, and this is in the summer. 44 is like running without meth.

You should remove the nozzles from the charge pipe (you should have plugs to put in the holes) and attach them to the windscreen with some duct tape, in order to observe the meth flow during driving. No need to guess.

[stratos_335]

Originally Posted by tscdennab

I don't think it sprays meth into the charge pipe, it is probably lost on the way. The failsafe should also detect overflow/leakage. With Aquamist HFS-3 and 2x0.7 nozzles the IAT does not exceed 22 degrees Celsius, and this is in the summer. 44 is like running without meth.

You should remove the nozzles from the charge pipe (you should have plugs to put in the holes) and attach them to the windscreen with some duct tape, in order to observe the meth flow during driving. No need to guess.

When I dynoed my car there was a significant meth leak in front of the car. It may comes from the solenoid before or after that or from the meth nozzle.

Probably is from the meth nozzle. I remember someone from here removing his meth nozzle and cleaning it up. It was quite dirty.

If the nozzle goes dirty then meth flow due to pump pressure will find an easier way to spray... and that easier way is somewhere at the front of the car as there is no meth smell in the trunk.

I will remove the nozzle on Saturday and check for leaks.

I think it's time to relocate the pump and the controllers inside the engine bay for better observation. Which means manufacturing a bracket and an aluminum plate to mount the pump and the controllers

[cn555ic]

There are plenty of spots on the engine bay to mount the failsafe and progressive controller....My pump is installed in an area that I think I am the only one that has done it to date...Its right behind the rear drivers wheel whele..If you look hard enough and plan ahead you would be surprised how many locations you can think of! Good luck

[stratos_335]

Originally Posted by cn555ic

There are plenty of spots on the engine bay to mount the failsafe and progressive controller....My pump is installed in an area that I think I am the only one that has done it to date...Its right behind the rear drivers wheel whele..If you look hard enough and plan ahead you would be surprised how many locations you can think of! Good luck

Nice. But that means removing of fenders, bumpers or shields. But it is a clean and stealth installation (important for some streetracers lol).

I was thinking of manufacturing a bracket that will mount the meth pump and controllers on the strut brace, similar to BMS oil catch can bracket. That means less meth lines, better controlling of the flow and faster response of the meth system, plus I can have a low meth indication if I use the windshield fluid tank.

Anyway, I like your installation

[cn555ic]

Goto a hardware supply store and look at some large L brackets. These can easily be transformed into brackets to hold solenoids and meth controllers. Just have to drill some holes in them. I used one of those L brackets and mounted a nitrous and meth solenoid to it. The controllers are really easy also. Custom fabrication is pretty cool and it's give you gratification once it's done. I am sure you will come up with something

[themyst]

You do understand that the snows actual flow output range is 0-1.5v right? The procede methanol flow is scaled 0-100 on the procede which equates to 0-5v?

If you're seeing 35 on the procede it appears a line isn't connected or your wiring is wrong. Your IATs and timing prove this.

[cn555ic]

Originally Posted by themyst

You do understand that the snows actual flow output range is 0-1.5v right? The procede methanol flow is scaled 0-100 on the procede which equates to 0-5v?

If you're seeing 35 on the procede it appears a line isn't connected or your wiring is wrong. Your IATs and timing prove this.

I see 25-28 flow with my M10 nozzle so I would think its a major leak instead of the wiring...When both my M10 and M7 nozzle spray I see values of 33-35...He has methanol flowing somewhere but not all of it getting into charge pipe IMO.

[themyst]

None of it is getting into the charge, look at his iat. If he even remotely had flow you would see iat flatline or go up slowly, not at the rate shown in that log. My guess is the flow sensor is wired incorrectly.

[stratos_335]

I made a quick check to the meth tube fittings. Everything looked ok before and afte the solenoid. But a few inches away, the meth tube that goes into the L connector on the chargepipe was loose enough. That could be a place for a leak.

Anyway, I replaced my M7 injector with my M10 and it was a 5 minute job. I'll go out for some logs tonight and post them up.

The tube almost came out when I pulled it without even releasing the push safe on the L fitting.

Themyst, what could I have done wrong? There are 5 wires, black with black, red with red, yellow with blue. green not used and purple with green (T connection)

[themyst]

You need to splice two wires to the pumps positive. I made the same mistake last year. Other than that I don't know off the top of my head.

[stratos_335]

Originally Posted by themyst

You need to splice two wires to the pumps positive. I made the same mistake last year. Other than that I don't know off the top of my head.

can you explain that "splicing"?

A green wire comes out from the progressive meth controller and goes to pump's red wire? How should connect that with the purple from the failsafe?

Your information would be really usefull

[themyst]

One wire is 12v+, the other (purple) is spliced into the pumps positive output. The flow sensor isn't active unless the pump itself is on, which is what that connection does.

If it's not that you have a huge leak somewhere and you're likely dumping a ton of meth.

[enrita]

Originally Posted by themyst

One wire is 12v+, the other (purple) is spliced into the pumps positive output. The flow sensor isn't active unless the pump itself is on, which is what that connection does.

If it's not that you have a huge leak somewhere and you're likely dumping a ton of meth.

you still have the Sticky is an idiot crew in your sig by the way welcome back , you missed e90post dont ya ?

[themyst]

Originally Posted by enrita

you still have the Sticky is an idiot crew in your sig by the way welcome back , you missed e90post dont ya ?

He still is an idiot lol. You won't see any trouble out of me it got real annoying buying stuff from members when you're banned lol.