The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

300 awhp???

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

spawn87

15+ Year Contributor
908
3
Dec 6, 2007
sacramento, California
first of all im not asking if I will get what others have on their similar set ups im asking if its possible for me to reach 300 awhp on 91 pump gas alone with out the need of running ether meth injection or E85.

my set up is as follows:
2g stg one dsm graveyard head with 272 Delta cams.
6bolt block with evo9 pistons w/.020 over.
B/S eliminated
fully ported e316g
1g tb
255 wally
AFPR
INJECTORS (THINKING 850CC)
3inch turboback w/ hiflow cat
ported 2g header
front mount
ECM LINK V3 LITE

(MY profile is updated for more info)

i live in sunny north cali and i dont really have close access to E85 for starters and my only option is 91oct.
i plan to take my car to FFTECH out in the bay for a dyno tune after i finish i breaking in my engine and clutch. this is for DD use i know FFTECH is a reputable shop but i want other advice and or hear from ppl who have succeeded with similar situation. WITH PROOF if possible.
 
how expensive is it to run meth? and where do i get it?

of course i will be doing a boost leak test before taking it to fftech who uses a mustang dyno by the way. no cheating for me LOL

and its not just having to refill the tank its the having to buy and install the kit in my car. rather invest on an evo3 intake mani and exhaust mani.

They have high quality water/meth kits ranging from $200+

The meth basically increases your effective octane while the water has an excellent cooling effect on your air charge temps.

You're willing to install an intake manifold and exhaust manifold but not a meth kit, doesn't make sense:hmm:

Filling the fluid up is no more difficult than pumping gas

I have the options of 93oct, E85, 100, and 110 all within 2 miles from me, someone that only has access to 91 piss water close by might want to look into a water/meth kit
 
would 20lbs of boost be safe to push on a completely stock bottom end or is it to much?

Don't think about boost levels but rather air flow. A T25 at 20psi and a 16G at 20psi have completely different airflow numbers.

The recurring theme here is :

depends on the tune and the car.

;)

This. Tuning is one of the most important things with your car.

well motor is build since my stock one had bad rings and an oil leak so i did a complete motor. and to think it all started cause my slave cylinder went out LOL

Makes sense then, I just assumed your motor was stock and you were going to throw all those parts on but you already had it rebuilt.

They have high quality water/meth kits ranging from $200+

The meth basically increases your effective octane while the water has an excellent cooling effect on your air charge temps.

You're willing to install an intake manifold and exhaust manifold but not a meth kit, doesn't make sense:hmm:

Filling the fluid up is no more difficult than pumping gas

I have the options of 93oct, E85, 100, and 110 all within 2 miles from me, someone that only has access to 91 piss water close by might want to look into a water/meth kit

I like Devil's Own Meth Kits.
Plus remember that 100% meth actually cools more then water does.
 
seems to be a lot of mixed information on meth in this thread.

wiper fluid/smurf piss is about 40% meth 60% water. anything above a 50/50 mix will be flammable and should be treated like fuel. a gallon will run you about 2 bucks you can pick up a six pack of 'heet' for a dollar a bottle on sale. its often cheaper to run a 50/50 mix than a single gallon of high octane.

on what cools better... if your going for low intake temps a higher percentage of meth will generally produce the best effects, but often you will need to inject huge quantities of it as each droplet of meth removes a small amount of heat quickly. water on other hand can remove much more heat but it does so less quickly. most people find a meth heavy mix will yield the best intake temps. if your concern is lower cylinder & egt temps water injection is where its at. water requires a huge amount of heat to vaporize compared to meth and will do the brunt of the work on lowering cyl temps and preventing hot spots.

on octane side of things most people assume strait meth is best. but actually water has an 'infinite' octane rating because it will not combustible. way too much water will obviously cause poor performance with too low of a cyl temp. until that point all it is doing is slowing the burn of gasoline and increasing detonation resistance, making your 91oct burn like race fuel.

do your own research but that's the basics of meth. most people find somewhere around a 50/50 mix makes the most power, with the combination of intake temps and in-cylinder-octane working together.

IF you run meth in your quest for 300awhp, you can run more boost and more timing with a larger safety net than strait 91oct.

also you get a steam cleaned engine :)
 
Last edited by a moderator:
rather invest on an evo3 intake mani and exhaust mani.

The rest of the responses since my last pretty much demolished any question about the validity of meth, so I won't go there anymore.

My last bone to pick is that you'd rather spend $3-400 on an evo3 intake and exhaust manifold vs. a meth kit? I don't understand the logic of this. Not only are the benefits of an evo3 intake manifold not worth the hassle (IMO, guys) of getting it to work with the valves, the net VE gain and HP gain just doesn't make sense. Also an evo3 manifold over a stock 2g manifold will do nothing as well (again, VE/HP gains are neglible, or you're lying if you say you feel a difference).

I'm glad you're asking these questions now before you invest your money, but please do some research on the mods you want to do. It seems like your knowledge of your upgrade path is either convoluted or ill-advised.

Also, for what it's worth: You can take a STOCK 2g awd car, put a 16G and the most minimum supporting mods, meth, and a freakin old school SAF1 and still make 300awhp. It's all about using the parts together as one powerplant and investing your money in the right places for the right reasons.
 
The rest of the responses since my last pretty much demolished any question about the validity of meth, so I won't go there anymore.

My last bone to pick is that you'd rather spend $3-400 on an evo3 intake and exhaust manifold vs. a meth kit? I don't understand the logic of this. Not only are the benefits of an evo3 intake manifold not worth the hassle (IMO, guys) of getting it to work with the valves, the net VE gain and HP gain just doesn't make sense. Also an evo3 manifold over a stock 2g manifold will do nothing as well (again, VE/HP gains are neglible, or you're lying if you say you feel a difference).

I'm glad you're asking these questions now before you invest your money, but please do some research on the mods you want to do. It seems like your knowledge of your upgrade path is either convoluted or ill-advised.

Also, for what it's worth: You can take a STOCK 2g awd car, put a 16G and the most minimum supporting mods, meth, and a freakin old school SAF1 and still make 300awhp. It's all about using the parts together as one powerplant and investing your money in the right places for the right reasons.


well like anyone one else im scared to try something ive never really known much about. especially on a motor i just put my last dime into :D
but the more you guys tell me about meth and the research ive been doing on the side its seems to be the biggest bang for my buck at the end of it all...

i think i will be running meth unjection and sounds like a 50/50 mix will suit my needs fine. ive been looking at the DEVILSOWN stg 1 kit with the 3/4 gal tank
is this a good one for me? i dont think i need a digital controler since its not everyday im going to be boosting it to the max. any other recomendations for kits? and can i run the kit in the engine bay or can anyone show me examples of set ups. pls
 
well like anyone one else im scared to try something ive never really known much about. especially on a motor i just put my last dime into :D
but the more you guys tell me about meth and the research ive been doing on the side its seems to be the biggest bang for my buck at the end of it all...

i think i will be running meth unjection and sounds like a 50/50 mix will suit my needs fine. ive been looking at the DEVILSOWN stg 1 kit with the 3/4 gal tank
is this a good one for me? i dont think i need a digital controler since its not everyday im going to be boosting it to the max. any other recomendations for kits? and can i run the kit in the engine bay or can anyone show me examples of set ups. pls

completely understood. not too many car groups like meth, honda owners will run Nos 99 times out of 100 before going to meth. but if you do your research you should see the benefits.

as for their kit. Its not a bad one, the 250psi pump is the one you want and a hobs switch system is simple and effective. you may with to look into putting together your own kit as it can be done cheaper but sometimes you cant beat getting it all in one place. also i have heard they do not honor their warranty if you do not buy all your meth from them, which would be stupid and expensive. so double check that.


you may wish to pick your own nozzle size. generally you run around or below 20% of you total fuel. say you were maxing out your stock 450's, that would be 1800cc/min or 28.5 gal/hr, so at 20 percent your looking for a 5.7gph nozzle. a single 5gph would be the minimum then.

off the top of my head i dont know how much fuel you will be using on a 300hp tune, maybe some one could clue you in on that. my off the cuff guess is your going to want somewhere around 6 or 7gph. dividing that between two injectors will help intake temps, but is not necessary to get the octane advantage.
if your feeling frisky you can put a smaller 3gph before your intercooler and a 4 at the elbow for a really cold intake charge. running meth before the IC has shown to drop the IC temps to below ambient temps. its nice to get done a run a be able to have 0 heat soak. the only catch is your going to want to have a check valve right on that injector and you can not run more than a 50/50 mix with an open bov unless you like fire in your enginebay.

oh also, i have been using a f150 washer fluid tank, with a low level sensor that i wired up to a light on the dash. got it for 5$ shipped on ebay... so you may wish to do something like that rather than shell out for their tanks. any wiper fluid bottle can take the alcohol.
 
Last edited by a moderator:
^^RLY? Although your KIND OF on topic with this, its not an uncommon number at all. Follow the upgrade path with the E316g as your turbo, and you'll hit those numbers all day with the right set up/dyno.

To OP...as everyone else has said, meth is one of the biggest bangs for the buck in terms of getting more boost with less turbo. It'll work ESPECIALLY good for you with the lovely 91 crap gas you have to deal with out there. Biggest thing I've heard recommended before is to have a nice LED light connected at the point of the nozzle. The light's only active as long as you're getting power to your meth nozzle so it lets you know you're good to go....if not, keep your right foot off the floor :)
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top