Hey guys, I read a handful of threads on meth and wondered if with the stage 1 tune and a few bolt ons, if meth will go nicely without needing a retune. I'm currently seeing 26psi on my car after the stage 1 tune and a downpipe.

I understand to get more HP out of the meth setup you need to add more timing but am interested how it would run with the stage 1 tune alone and some bolt ons.

Thanks!

 

make sure u get boost cut kit along with that, cause if u get a clogged line or run out of meth and u dont have the kit to retard timing or boost, ur motor will go boom in 10 seconds. i want it just for the cooling and the fact it makes ur gas like 125 octane. but im debating cause if i take it in for warrenty they will see it and void my warrenty.

 

Magnuson Moss Warranty Act of 1974 states that unless they can prove that the part that you installed directly caused the issue then they must cover the item under warranty. Just food for thought.

 

unless you plan on re-tuning for it that is a TERRIBLE idea

The next thread should be "Turbo swap with GMS1 good idea?"

 

I want to know how your getting 26PSi on a GMS1 tune

And to answer your question no do not go and get meth unless you plan on custom tuning for it (i.e. Trifecta or HP).

 

whats wrong with running meth without tuneing for it, it will still give u better octane gas, so no worries about getting **** gas, and it will still bring ur air temp down plus the alcohol in is a fuel in itself and give u more power due to that and the colder air charge. plus ur still gonna be safer running higher boost because ur car will run cooler, so no worries about heat soak and such. yes tuning for it will give u 70+hp extra, but i still think its worth it running it without tuneing it. just an extra safe guard and a little extra power.

 

I would not do it without tuning. It makes a big difference in a/f ratio. If you've actually tuned for it yourself you'll find that it's not so simple if would want to cover all the edge cases, which IMO are critical for safety.

If you don't tune for it, it could throw off your LTFT, and if you stop spraying, and have no waste gate cutoff safety, you could cause problems... Whatever you do, make sure you get one with a waste gate cutoff.

 

pretty sure you will run WAY too rich

 

so then just run it with water and no meth, then u get just the cooling effect.

even if i would tune for it, what would happen when im just on stock tune? same problem, unless i put in a switch to turn system off. which i would anyway i guess.

 

Iirc spraying just water will hurt performance.

 

I have sprayed meth in an lnf for almost two years. I've ran all sorts of mixes but she likes 100% meth the best. You will lose power without tuning, not to mention that you can hit borewash territory depending on the nozzle size/pump pressure and **** your **** right up on the stock tune. Also, your untuned maf will ******* hate your guts.

 

You are retarted if you actually believe the MMWA was written for this purpose.

 

There is so much fail in this post I don't know where to begin. There's a huge difference between say running 91 octane and 93 octane versus running 93 octane and 110+ octane. Yes your temps will go down, but your A/F will be off the charts and you will most certainly destroy your engine not too far down the road. If you want to solve heat soak without tuning, get a better Intercooler. Running meth with no tuning is absolutely suicidal (or homicidal depending on where you put the blame) for your engine.

Truth.

The MMWA was written as a safe guard for people who want to buy a Fram oil filter instead of the OEM or if you want to use Hawk brake pads instead of OEM or a Royal Purple oil instead of OEM. It is 100% NOT for putting aftermarket intake systems, exhausts, intercoolers, etc. onto your car. I hate when people mention the MMWA like it justifies any modification you do to your car...it's NOT designed to protect against modifying. It's meant to protect against maintaining...nothing more

 

Methanol/water injection by its self will when used properly even without tuning will still make power on these cars. Tuning will help see the full potential but what these kits are doing is lowering your iat simlar to what an intercooler is doing. When ever someone swaps out from a smaller ic to a larger fm they need a retune for the same reason. Lowering your iat +50 degs makes all sorts of things possable on a retune.

The trick is to not run larger nozzles and as lots of meth if you can't pull any fuel out with tuning. I recommended for people just wanting to put a kit on and calling it good to run a do3 nozzle and no more than a 50/50 mix. This is not going to make your 02 be out of wack.

Most people think its like nitrous and try to shove nozzle that too large for the application and call it good. If anyone has to pull more than 5% of your fuel out than your running to much nozzle size. With a do3 nozzle your not going to see a noticeable a/f change.

 

in the heat I spiked around 25. It felt weird. I was almost scared.

 

The only mod i have is the stage 1 tune and i'm seeing 26psi, and then it creeps down to about 24psi.

I had meth on my last car and it made a night and day difference but i wasn't sure how it worked on these cars with this particular tune.

 

I can't say I agree on a 3 gph nozzle not making an impact. I used to run a 4gph nozzle running 50/50 on a different car (Legacy GT with a non-stock turbo), and I had to adjust my fuel by somewhere around the 5% range. That's a big difference, imo. Eventually moved to 6gph when I went to an even larger turbo. It is a significant change to tune properly for WI.

I agree with one thing though, most people run way too large a nozzle for their application. Larger nozzle, even with a progressive or fully computerized controller will result in iffy situations for edge case scenarios.

 

I don't know, but something don't sound right here. Your profile says you have a 2000 Pontiac Sunfire with a 2.4 liter motor. To the best of my knowledge, most of those motors had a 10 to 1 or higher compression ratio which should theoretically limit your boost. You also say you are running 26 lbs of boost with a GM stage 1 tune. Somebody correct me if I am wrong, but the only ECOTEC stage 1 kits that I know about are for the LNF and LSJ engines. I have the GM Stage 1 (19212670) kit with MAP sensors installed on my LNF Cobalt SS and it never seems to pull more than 23 lbs of boost. Time to put away your dog earred copy of Import Tuner and come back to the real world.

 

Got any dyno sheets/vids of that?

 

devilsown...I know you're a great vendor and all...but are you going to cover the cost of repairs when he blows his motor running pig rich and knocking like a sonofabitch? Because GM sure won't

But seriously...these cars are sooooo touchy with even the slightest of mods that something like meth could really do some severe damage. It's not the colder IAT2s that you would have to worry about so much...it's the fact that you're running essentially race fuel everytime you put your foot down.

Seriously OP...tune for meth or don't run it at all. Even those crazy DSM guys know better than that (most of them).

 

Considering the GM tune had u running a 13.0 at wot running a small nozzle like devils own is talkin about isnt gonna make u run pig rich. Maybe like in the 11s low 12s.

And running 100+ octane isnt gonna make u blow ur motor if ur tuned for say 93. Now if hes tuned for 100 an runs 93 then maybe he will have issues.

 

Eh...just remember..you car was showing a degree or so of knock just from the weather/tempreture change from 10 AM to 7 PM....Now imagine how much knock will occur running race fuel and ~40 degrees cooler IAT2s without adjusting...just sayin.

 

Only thing to do is try it out and see what happens.

I had a degree of knock from my fuel trim being off a lil up top. The octane of the gas isnt gonna make it knock at all. The only thing that would maybe make it knock would be the fuel trims being off up top but u dont know if it will cuz there probably already off anyways lol.

 

I ran my n/a cougar with a meth kit and ran just -20 degree windshield washer fluid for 5 years and didnt have any issues.

 

^^^ completely different motor