Well if he is being specific spraying meth does not literaly lower IAT2s temps. Example, if you are driving and your IAT2s are 95 degrees and you slam on the gas which starts your meth spray your IAT2s are not going to drop to 80 degrees. But the meth will control the IAT2s much better as boost builds into the higher rpms.

So I am not really sure what he is trying to say exactly.

Edit:

Just for those who may not have seen this...

 

140* iat2 on a 2.85 pulley is nothing to brag about.

w/o meth I see 100* iat2 on dual pass, option b and cobra h/e w/ a 2.7 pulley.
3rd gear WOT @ 5500 RPM 88 mph w/ an outside temp. of 50* F.


Again, meth before the blower will not lower iat2s.

 

incorrect sir. think of it like a chem class. The water/meth is removing heat, whether it removes it from the SC or from the IM will play a factor, but heres the thing: spraying into the IM will cool the charge air directly after it has been heated up. This will cool IAT2's
Spraying before the SC will remove heat from the SC and probably a little from the air charge/IM as well, though not as much. This will lead to a cooler blower, causing the IAT1 air to not heat up as much, leading to a cooler IAT2

One method cools a very hot IAT2, whereas the other method is better at preventing the charge from ever seeing high IAT2s

to put numbers on it, say your IAT1 is 80*. If you spray meth into the IM, the 80* air may heat up to 150* air, then drop back down to 110* air when it hits the meth in the IM.
if you spray before the SC though, IAT1 is still at 80*. The air then will only get heated to say 120* before it hits the IM, since the water/meth is already mixed with the incoming air.
get it

 

first, where did you get that spacer...is it made and how much... id love to do some work with spraying into each runner..

both of your guys theorys seem to make since to me...hunters theory really is just trying to prevent some of the heat from happening buy lowering it before it gets that hot... while bristols theory seems to be the most effective...regardless of what ever the temp is at the SC bottom line is, before that air gets inside the engine...its cooled.... cooled at the end of its path, with less chance to heat up any further

just what i am gathering from all this...

so why not spray before the sc to cool the charge leaving it, and cool it again before it gets to the engine... would there really be any disadvantage to spraying both... besides using more meth?

 

^^ nope. as long as you dont spray so much meth the engine cant take it...lol but that would be a LOT of meth. Hook up 2 different 2gph nozzles and see what happens. im sure you'll love it

 

i cant wait... ive got a single pass manifold now.. and its very differant from the stock endplate quad pass... seems to be a good cooling mod right now, just waiting on my new front mount... im going from a cobra he. to the big cx racing h/e...ive got a slight leak from my cobra, and want a bigger one anyway...

really just trying to go along with ralliartists ideas of cooling mods up the ass, then tack on some power mods... even tho some argue that meth isnt a cooling mod but you know what i mean

as soon as i get this all set up, im really just about done i think, atleast for the summer, then during the summer ill be purchasing everything needed to change pistons, oversized valves, springs, prolly keep the same cam, and clutch...

but that will be next winters project lol, luckily ive got a spare engine from my previous one, that will cut down on down time

 

The spacer is old school and was used to tune LSJs before HPTs was available. Basically, the car's ecu runs stock and a piggy back tuning systems runs the additional 4 injectors. It was used in the first twincharged ION Redline.

While this kit was being developed HPTs released its support for the LSJ and pretty much killed the development of this product. As far as I know it is one of a kind.

I don't know if there are any disadvantages to spraying before AND after the SC other then unnecessary complexity.

I was thinking......about removing the fuel injectors from the spacer plate and having the holes tapped for meth nozzles. I could run a 1gph nozzle in each hole for a total of 4gph directly into the head. Then run a 2gph nozzle before the SC or a grand total of 6gph. I am running a 5gph nozzel right now into a TB spacer.

But who knows if it is actually worth it. 5 new meth nozzles is not cheap.

 

Well, that's cool.. I wasn't saying that I had the coldest IAT2s on the board.. just that they were better than they would be without the methanol...

 

wos lol does sound oldschool.. im going to make a few calls to friend of mine in a machine shop, bring him my spare IM and see if he can mkae a 1/2 thick spacer just like that... if so that would be crazy...

would tuning for spraying in the runners also spraying before the sc... be simular to just spraying before the sc?... tuning it is totally out of my area of knowledge... id LOVE to learn all the tricks about it... but dont even know where to start

also, my IATs are looking like right now... iat1 roughly have been around 40-45*... iat2 have been no higher than 75*-85* crusing at about 60 mph....with a WOT pull im hitting around 95*-100* put quickly drops back down... the only thing that kinda gets me stumped is how i can be driving with iat2 around 75*, let off the gas and slow down, and then they will shoot up to about 85*, then speed up about 15 mph...then they drop again to 75*

the set up seems to flucuate alot more than i remembered with just the stock endplat

 

i am going to guess that this is caused by a hot intake manifold. If the intake manifold is hot, and your hard on the gas, a lot of air is flowing through it at a very fast rate, so the heat doesnt have a lot of time to transfer from the manifold to the air. If you lessen on the throttle though, there is less air moving at a slower rate, so the heat can transfer from the manifold to the air a lot better, making a hotter IAT2. This is just a guess, but it seems like the most logical thing to be happening to me.

he's just excited he has cool temps. he's been flaunting his numbers to me for a couple days now
you know steve, my numbers could be even cooler. I just need an IAT2 sensor

 

Well I have one of RAW's meth inj. kits and I have it spraying after the blower with a spacer plate between the blower/intake. It has a square hole opening and 2 nozzles spraying into the air stream....it lowers my IAT2's about 30-35 degrees that was with a 2.7 60lbs injectors , no HE and No option B. Over all a nice kit with no problems for 2 yrs or so...I run mild timing advance about 24 degrees up top at the most...just preference.

 

ehm... giant pulley...

I'm more curious as to why your seeing such high temperatures on a 2.85 pulley w/ METHONAL.

You make a great point

But, spinning a 2.7 or smaller pulley and spraying before the supercharger, will not yield as good of a cooling effect on IAT2. The blower is made to run hot, let it be hot. You guys need to focus on what the most important thing is, and take care of it.

For those running larger pullies, the upgraded intercooler system are more than substantial, and do not create nearly as much heat as a 2.7 or smaller pulley. In that case, spraying before the blower may be beneficial, to help aid our struggling laminova cores cooling the hot air from the eaton m62. Though, to see better results you will need to spray into the intake manifold.

 

giant? its only a 2.9! lol. your a whole 1/5th an inch smaller than me!! haha

 

And spining o so much faster!

 

Well, as I said, that was after multiple pulls.. .. By multiple I mean 6 or 7 runs. Each running through 3rd, doing a u-turn and coming back.. (Trying to replicate a intermitent miss.. and, of course, couldn't make it do it when I was trying to log numbers )