Thread: Meth vs Intercooler

Originally Posted by Rocket468

Yea, tune yoru car OFF meth. Then when you put it on set the start point to around 3psi and ramp it up to say 8psi. This should get it to start spraying before you get Kr and keep the iat down so that kr does not show up.

Main thing with meth is don't go by the if a little is good more is better mentality. Most m90 cars will run best with a DO3 for low modded. r DO5 nozzle for the more moded setups.

If you use a boost reference progressive controller on a Eaton or for that matter any roots or twin screw supercharger. Your not going to get much of any progressive feature out of your water methanol injection system at all.

These superchargers go right into full boost when you nail it. The same thing is going to happen with your progressive controller. It going to zip right past the start point you set and hit your max setting sending the system into full flow. The company who sold you that water methanol injection system should have explained this to you and just put you into a Stage 1 system and saved you some money.

If you want a progressive feature, which by the way you probably really don't need, they should have set you up with a 0-5 volt controller and based the injection off of your mass air signal. Not a boost signal. Then you would get a true progressive feature out of your system.

Plus, the reality is you don't need any injection at 3 psi. You can run these engines just fine to 5-6 psi on pump gas with no water methanol injection. If you set it to start spraying at 3 psi your just going to end up using a lot of fluid with normal around the town driving.

If it were me i would use a simple and less expensive Stage 1 system with the switch set at no earlier then 5 psi (if your running 8 psi) that way you offset normal around the town driving.

Rodney

Plus, a number 3 nozzle on these non intercooled engines is too small. Pull air temps and you'll see it will only drop the air temps 30-40 degree's from it's normal 220-240 degree's at 8 psi depending on the ambient temps of the day.

Originally Posted by Bio248

i realize what youre saying, but when you actually run a meth kit you want the progressive controller. i ran it and the difference between peak boost and whatever is made at WOT is different. i set mine to turn on at 8 and peak at 11-12. i made a pound or two more boost at the top of each gear which is where i wanted the progressive aspect of the controller.

If you want a progressive feature on your car then get a controller that works off of a 0-5 volt signal and pull your signal off the MAF. Just trying to help here.

Rodney

Originally Posted by DevilsOwn

I just want to point out so someone does not try this. never hook up an item intended for 0-5v input to an item that gives off a 12v signal ..... Anything that is gm maff is this way. But you should not that because like you said you have sold hundreds of these.

Really. GM mass air meters don't send a 0-5 volt signal back to the computer? Then how do they work? And why have I used this signal to work with our controllers countless times? Also, how is it I have had customers use the LS1 mass air on their 3800 engine by using a 3 to 5 pin adapter pigtail?

Rodney

Originally Posted by ais

Really. GM mass air meters don't send a 0-5 volt signal back to the computer? Then how do they work? And why have I used this signal to work with our controllers countless times? Also, how is it I have had customers use the LS1 mass air on their 3800 engine by using a 3 to 5 pin adapter pigtail?

Rodney

GM MAF sensors produces a frequency signal they do not output a zero to 5 volt signal, How do you not not no that. How do you think the AFC works on these? Looks like you need to do a bit more reading.

use a "coldwire" MAF system (produced by AC Delco) where the inductance of a tiny sensor changes with the air mass flow over that sensor. The sensor is part of an oscillator circuit whose oscillation frequency changes with sensor inductance; hence the frequency is related to the amount of air (cubic feet per minute) passing over the unit. This oscillating electrical signal is then fed to the car's ECU. These MAF units (such as the one pictured) have 3 pins, denoted +, - and F. F carries the square-wave frequency between - and F. They are powered by +5 VDC from the ECU's regulated power supply.

Your not only giving our customers wrong information your on our forum. How do you not know how a GM MAF sensor works vs a MAP sensor is beyond me.

We should ban you just on you giving people the wrong info.

I suggest people here stick to the guys that know Grand Prixs like the back of there hand. We did run the OK GP Club for years and had over 200 members back in the day.

Originally Posted by DevilsOwn

I just want to point out so someone does not try this. never hook up an item intended for 0-5v input to an item that gives off a 12v signal ..... Anything that is gm maff is this way. But you should not that because like you said you have sold hundreds of these.

The MAF doesn't give off a 12 volt signal back to the ECU.

Originally Posted by 01GTP

How is the devils own controller not exactly that? I runs off a 5 volt signal from the map.

Ask them not me.

Rodney

Originally Posted by dvldoc

Your a idiot, You do know Chance started and runs this forum right?

Why do you think we commented on the nerve of you to get on here. Duh!

I know you guys banned me. Which if you ask me I think is the easy way out of not dealing with the questions or comments I made.

I never called anyone names as your doing here. Since your going to call me names I figured it only fair to respond. If you look back through my posts. My first post was "you are Devils Own" or something along those lines. I had no idea Chance started this site. As I mentioned someone posted a link on this forum which when someone clicked on it and was redirected to our site we received a notification through our web tracking software.

Reading through a post I recognized the screen name 468Rocket as Chance from Devils Own. Just curious why he would act like someone else. I guess he didn't want to answer that question. Just as you don't want to comment on the nozzle post I made and why we have the same nozzle as you guys. Why did you stick that company with thousands of dollars worth of nozzles you agreed to buying? He's going around calling me dirty. It business so get over it. I didn't stiff a company for thousands of dollars worth of nozzles.

Rodney

Originally Posted by dvldoc

Real classy answer, Your true side is showing again.

By the way Rodney how about you learn how a GM MAF works before giving people advise. They output Frequency not voltage. Very scary you don't know that. You guys should stick with the Grand Prix experts that are the actual vendors on the site.

You must be confused. I've ran a lot of our controllers on GM MAF's I can't speak about your controller because I don't know anything about it MAF function. I was just explaining that to use a boost signal on a roots supercharger or twin screw is really no better then using a on off boost switch.

I wouldn't have any of my twin screw or roots style supercharger customers use a boost signal is they wanted to get a progressive feature. You a MAF signal instead .

Rodney

Rodney