just about done building a turbo setup for a customer. but tuner advised me to add a meth setup. i am only looking at 7psi for right now as this is a stock motor. wanted to see what people's opinions are and what kits would you recommend
using a GT4202 with 1.15AR
60lb injectors
-10 feed with a1000 pump
12x24x4 inch intercooler with 3 inch inlet/outlet

would it be worth it. wanted to max out on pump gas and not rely on meth. but wanted to see what opions were.

thanks in advance

 

Using what sort of boost controller? An option would be to have the methanol available if the customer wanted to do two boost setpoints, one for everyday and one for max effort. Tune for the everyday without methanol and then determine appropriate methanol addition to compensate for a higher boost setpoint. Is the tuner seeing limitations (IATs, fuel availability...) already or is he just a fan of methanol?

 

Alchohol/Water Injection (commonly referred to as Methanol Injection) is
best described as a "chemical intercooler". Methanol is extremely
effective on supercharged and turbo-charged (boosted) engines and is
also an effective power adder on naturally aspirated engines.

There are 4 separate benefits to Methanol Injection.

1. Methanol will significantly lower your Intake Air Temperatures.
Methanol is very cold (similiar to the way rubbing alchohol is cold when
applied to your skin) in its natural state. When Methanol is injected into
the incoming airstream it creates a cooling fog that will drop your intake
air temperatures between 30-70 degrees! The resulting cooler air is
denser which in turn packs more oxygen into the engine, which as you
may already know will increase the power potential of the engine.

2. Methanol is a fuel that has a very high octane rating.
When Methanol is sprayed into the intake, it is effectively bumping up
your total octane rating only when you need it most, under boost! With
93 Octane fuel and the total combined benefits of Methanol Injection, you
can have the equivalent of running C-16 (116 octane) race gas! Let me
help you understand what this means. High octane race gas allows you to
run more compression and/or timing while avoiding detonation. Under
boost, the compression ratio of your engine will be temporarily increased
requiring higher octane. The more boost you run, the higher your
compression ratio is, the higher octane fuel you need to avoid
detonation. Methanol Injection allows you to use lower octane pump gas
for the majority of your (off boost) driving and increase your total octane
rating when you dip into the boost. Methanol is only injected under boost.

3.Unlike Nitrous, what makes Methanol so safe is the fact that it adds fuel
as it adds more oxygen.
In fact, Methanol adds much more fuel than oxygen which helps handle
the high fuel demands on boosted, forced induction engines. If your AFR
(Air/Fuel Ratio) is not ideal it is much safer to be rich than to be lean.

4.Methanol Injection saves you money while maximizing your engines
power potential!
You no longer need to waste money on high octane race gas! What does
it cost these days to fill your tank with race fuel? $100? $200? Methanol
will cost you pennies per tankful. Methanol can cost between $2.50 -
$6.50 per gallon depending on where, when and how much Methanol you
purchase. What makes it so cheap is that Methanol is only used during
boost conditions. Additionally, most set-ups use a 50/50 mixture of
Methanol and water. To help you understand how inexpensive Methanol
is, we recently Dyno tested a turbo-charged 8 cylinder vehicle and did
over 20 WOT (Wide Open Throttle) runs. The Methanol container was
filled with a 50/50 mix of Methanol and water prior to the runs and then
checked after the runs. Total volume used was approximately 8-10 oz.
50% of that was water, using only 4-5 oz. of Methanol.

 

If you customer is only going to run 7psi I would say no, meth is not needed.

In this situation, Meth would be good for a few degrees of timing and potential for higher boost settings on pump gas. It all depends really on where he really wants to be on his setup.

 

I wouldn't put the time and money into meth for 7psi.

 

i'm not sure you understand what meth is used for...
u should use it with 3psi. it makes boost safer and all that implies.
there are no down sides to methanol injection. if you could use 116
octane race gas for the price of 93 oct. would you?
of course you would...case in point.

 

I fully understand how meth works, and never implied there was a down side other than cost. Depending on your system, a good progressive kit will cost at least $500. For the sytem he is building I (personally) wouldnt spend the cash unless you had future plans.

 

For a stock motor, usualy if your making the power, its going to break regardless. When you build the motor, i dont think it would mess around with having to fill the meth or worrying about the pump failing. Id use the good gas, a $7k motor isnt worth going cheap with fuel on. Untill you can get a octane reading from the gas pump to verify it is 93 octane, then i would do the above.

 

i appreciate the input. i am thinking of just tune conservative for pump gas. i am thinking let the customer enjoy car for a while and then when he gets greedy and needs more i can install the meth later.

 

i get both sides, really i do...but when one makes that decision to go FI,
cutting corners and cost arent an option, your only option is knowing what the limits
you set for your project and all the veriables that when into making the proper choice
for said venture, meth to boost is like cog belt to blower, ease of mind...and as far as the "what if" everyone throws around, the likelyhood of componant failure can happen
at any link in the chain...i wouldnt worry about a "new out of box" low amp pump with a dummy lite for the "what if's".
cutting $$$ corners in the beginning = more $$$ spent in the end.
AINT THAT THE TRUTH!

 

I wouldnt say that is cutting corners. Cutting corners would be making your turbo drain out of paper mache, running an ebay turbo, and tuning on a narrowband.

We could go back and forth all day, but it can be tuned safely either way. All depends on how high your credit card limit is. haha

 

agreed! im getting older..almost 40,...so i see myself becomming a hypocrit
at times, and forget making mistakes is all part of the bigger picture in
the man/car relationship. i cant reinvent the wheel or remap the long road.
wisdom comes with age, it wont come any other way.
yes, u can tune it to work well with or without..but if i knew then,
what i know now...you know the rest of the story...

 

I have meth on a built motor and a wide band. With the meth afr is 10.6 10.8 at 7k intake temps where 103 at the start and at the end I logged a quick drop to 87 degrees from 4k to 7k car pulls hard. With out meth afr was 10.9 -11.2 intake temps where 105 at the start and 119 degrees at the end. All pulls where on the street. Car didnt pull as hard without the meth. I say buy it because you never know when you want to go all out. Do not use meth for a band aid to a meager fuel system. But for a added 20-60 hp its worth it .

 

I put meth on my car(see sig) and with just meth and a retune no upping of boost it picked up over 40 rwhp and 30 rwtq. In my opinion i would never build another forced induction car without it because it's such a safe we to make an *** load of power. it lowers and dence's the air/fue charge, keeps the intake track and cylinders cleaner, etc....the bennefits are endless

 

i love this guy...well said.
u got the 40hp with the retune do to more timing and fueling.
either way it's useable hp that u cant get (safely) without meth.