bdwarr6

Ok guys im trying to research the methonal kit from Snow and looking for some results from dual pass intercooler mods

I have heard mixed feelings on the meth kit, and also on the Dual pass intercooler

The meth kit will lower temps and possibly make more power

vs
the dual pass that will lower temps


My main concern is what is the most effective to cool the engine safely

Thanks

Blown 4-banger

I think the dual pass while a pain in the ass would be the better way to go. Reasons?
1. Water/Meth = $400+
2. Dual Pass IC Mod = Some labor and about $30 in parts
3. You have to constantly refill the water/meth kit where once you do the IC mod you don't have to do anything with it.
4. Say you have water/meth injection you can run WAY more timing, BUT say in the middle of a run the pump fails or the line blows. Your IAT2 will sky rocket and you will get MASSIVE knock and possibly more than your car can compensate for and, POP goes your piston(s). The intercooler won't fail, so you don't have anything to worry about.

Rangerondubz

BUT you will make more power w/ the W/M injection b/c the methanol acts as a high octain fuel, why not go w/ both?

bdwarr6

I think by popular suggestion im going to go dual pass, i just need a photo of a finished one so i can figure out howto do it

bdwarr6

Never honestly though of both, I have alot on my plate now as it is. I think I will look into it a little more next week

DWK5150

Do both but do the dual pass now cause its easier to get the cover plate and tubes out while the intake is out of the car.

bdwarr6

Thats my plan i just need some pictures to figure out what im doing
\

if any1 has pics please email me at bdwarr6@gmail.com im going to do it tommorrow

also what parts do i need to pickyp

DWK5150

I havent seen pics here but look on red line and youll find them just do a search. You need a elbow is it but I syggest you have it welded in so you dont have to worry about it leaking cause the casting is pretty thin.

bdwarr6

so drill a hle and add a fiting, what size did you use and what all parts were required?

also how big was your hole

and where did u run the hose to that comes off the extra port?

bdwarr6

2k5 check my gallery im uploading them for you

bdwarr6

ok since im tired and cant honestly think right now where is the intercooler pump?

isnt it under the manifold held in the circle bracket?

AlphaJaguar5

Yes sir

bdwarr6

cool even tired i got it right i think im learning this motor like i used to know my 420a

just hope i dont start talking about it in my sleep....

M88ArRamadi

Good Thread!!

I was going to do all 3 (CA Heat Exchanger, Dual Pass, Meth inj.) But I was going to start with Meth.

Will the IC pump be enough for the dual pass?

bdwarr6

I assume so ive seen it done 5 or 6 times no complaints

bdwarr6

I will definatly make a howto for this, as its a cheap mod that produces good results

bdwarr6

what do you mean switch the top 2 cores, also do you have a link to the jbp 4 pass?

2K5SS/SC?

Bdwarr06, thanks for the pictures. A how-to would be great, as I figured out how to assemble the deal, but I'm still a little confused.

I can't wait to get home to try this out. Man I love DIY mods!

bdwarr6

i got it now, had to sit back and think for a minute, dam this is going to be easy since i have it all out already

Cobalt_Supercharged

Honestly it is a PITA. First you have to remove the Intake manifold. Even GM mechanics guide fails to mention the 2 bolts hidden under the Manifold that require you to remove the entire IC bracket to reach. I suggest removing the pump from the cradle to gain easier acess to the top 2 bolts on the IC bracket.

We slowly drilled the hole in small increments up to the recommended size for the 1/2" NPT tap. Unfortunatly the end plate is so thin that it doesn't give enough threads to properly seal. That is when Blown 4-banger took the end plate to a shop and had it TIG welded in the proper position. BTW the end plate cost $190 from the dealership, so don't get too rough with it.

bdwarr6

mine is already out laying on the garage floor

i have a mig welder

Cobalt_Supercharged

Be careful because the AC lines are in the way of the 90 elbow aswell as the oil filter canister. I would recommend getting some soft jaw covers for your pliers or some smooth jaw pliers to prevent marring the ends of the cores when you pull them out. They are a little difficult, but they are only held in by O rings.

Cobalt_Supercharged

MIG won't weld aluminum. Sorry.

2K5SS/SC?

I'll take this project over the headgasket replacement I did any day! Plus, it'll benefit my car greatly being in Charleston 100+ degree weather in the summer time. Can someone make a flow diagram (with paint or something as it doesn't have to be too detailed) and post it? I think that would help us all out getting a idea of how it works.

bdwarr6

damit

its not my welder and i dont know howto weld so dont hold it against me

would jb weld work?