I have been reading through threads and I may have missed it, anyways I am currently running 2.6" and plan on eventually doing 2.5". I need to get my coolant temps down. I can not decide if I want to invest in the snow performance or do the front mount h/e and dual pass as the first coolant mod. Any suggestions of preferences?

 

I would go with the heat exchanger and the dual pass with some water wetter. Meth can be tricky to tune and when you run out its basically not cooling anything down.

 

I have the dual pass heat exchanger with the more extravagent plumbing option. It is important to note that the heat exchanger has its own cooling system whether it is a single or dual pass. With the more extravagent plumbing system, you end up with two coolant recovery bottles, but it works out pretty nice. I would not recommend this task for the novice mechanic because of the complexity of gettng the laminova tubes out of the intake manifold. They can be very easily damaged. I also have nitrous oxide which acts as an excellent air charge cooler.

The problem is that the more performance you get out this engine, the more you are going to challenge the stock cooling system. Last summer at the Woodward Dream Cruise, I was running between 209 and 230 degrees coolant temp. Not good.

 

I voted the meth injection. I've got a second heat exchanger and the meth, so I can speak on both. Once meth is setup properly, it's benefits cannot be matched by a dual pass and H/E. On top of cooling, it raises octane as if it's running on race gas. You'll be able to run more boost and timing with the meth than the other two. However, the dual pass and H/E are good mods, and I think you should try to do all of the above.

 

were you running on stock cooling? what was your setup at that time?

 

I did the meth injection before I did a 2cnd heat exchanger.

 

were you running on stock cooling? what was your setup at that time?

I plan on doing all the cooling mods I am just not sure which is going to benefit me the most to begin with

 

Dual pass + Cobra HE FTW!!!

 

I don't mean to step on anyones toes or be an instigator but I'm just speaking from a non-biased manner (as non-biased as I can be)...

Instead of pushing the M62 waaay past it's efficiency point, why don't you look for another or more efficient form of forced induction, whether it's a different type of supercharger or it's a turbocharged setup. I love turbos and everything but even the whipple setup they are trying to establish sounds much better than what you're trying to do cause right now you're basically playing with fire.

To be perfectly honest, you should have asked this question WAY before you even went down to a 2.6" pulley.

All I'm speaking about is from the efficiency standpoint...I'd say the same thing to a guy with a stock turbocharger pushing it 20 PSI cause essentially, you're doing the same thing. Your temperatures are being effected dramatically and right now, I would just take the pulley off and switch it UNTIL you come to a full decision on what you're going to do, whether it's switching out to another form of forced induction or your original question/poll.

Also, nitrous can drop your temperatures dramatically as well.

That's all I have to say.

 

Well, the bottom line is even though we're WAY out of the eatons efficiency range at that small of a pulley, we still make more power. So even though the eaton may not be working as good as it could, its still working good enough to make more power. Also there isn't really any other form of FI to turn to at this point without spending thousands of dollars and custom fabricating your own. Trust me we ARE looking for other forms of FI, they just aren't ready yet, so we're making due with the eaton.

 

meth injection gets my vote. and you dont "tune" meth injection, you get a box and you can dial in when you want the meth to start spraying, and when you want it to spray at full capacity.

 

Give me a Little time & I will tell you what a Dual Pass Endplate & Dual Pass HE Does For your Temps. I got my Custom Resevoir Today & Will have it Polished & Installed this weekend! Heatexchangers is already Mounted, Right along with The Endplate!

My New setup will Hold atleast 1 1/2 Gallons of Coolant.... Stock is Less than Half that!

 

I posted what it does for temps, 4 months ago

 

Complete methanol/water injection system (Cobalt SS/SC & Ion Redline)
Item Number: M00-INJ010

Complete bolt on kit which reduces air temperature after the supercharger and boost octane for increasing timing advance.

Approximately 25HP and 27ft-lb increase

Injection plate is installed after the supercharger eliminating corrosion on rotors.

Recommended for anyone running GM Stage 2 with a smaller pulley as it reduces injector duty and eliminates any knock.

Increases tension on belt when running a smaller pulley on the supercharger.

Kit includes: injection plate, 150psi Surflow pump, system run controller, activation light, 1L tank, all required wiring and fittings.

Minor tuning is recommended.

This is from tags website.....

 

You Did it with a single Pass Cobra HE Right?

 

x2, I agree 100%!

 

you dont need to tune anything. i put my snow performance kit on without tuning anything and its fine. actually i'd like to know what tag reccomends adjusting for a meth kit

 

Tuning isn't required, but you can gain more performance out of the kit with tuning.

 

Not sure I understand? I did it with a dual pass intercooler endplate, a stock heat exchanger, and a cobra heat exchanger.

 

The Tag S/C should be coming soon and is gonna be $2500. Thats not that bad for 300 - 350 HP running WAY more efficiently than the Eaton and you can probly push it even further. Why invest money in tryin to get run safely when you can jus take the next step and not have to worry about cooling?

 

Well I mean, this is something you guys should have thought about before even stepping into the car. It's called doing things correctly and efficiently. If you want the power you're truely trying to gain, then you have to spend the money. I mean, you guys are kind of like "making use of what you have now" instead of trying to do things right.

I'm in no way dissing the M62 or supercharging...I'm purely talking about doing things efficiently.

There are people who are deciding to switch to a turbocharged setup for a reason. Their blower is not going to provide the power they are looking for reliably and efficiently.

I understand you're waiting for the whipple but sometimes you either just gotta be patient or don't do things at all or get another car. If you are buying a vehicle that you know you're going to modify, you should quite possibly look into how people are modifying them, how they are holding up, what can stock parts handle for x amount of power people are aiming for. And no offense to you guys either, on top of these things of researching and a couple of other factors, this is why I didn't buy an SS/SC when I was shopping for a car even though I probably could have gotten a good deal. I know when I want to get into modifying again, I want something more than what the M62 could quite possibly provide.

You guys are already in the car, so you can continue to either play with fire worrying about cooling methods to the point of spraying methonal to get a desirable IAT or you could be patient and do research on doing a better setup than what you have.

But whatever. It's your car, won't make me lose sleep...I'm just trying to look out for this guy and the members of this forum so I don't have to read another "blew a piston" thread.

 

Adam, I understand your point-however my case was different. When I bought this car, there weren't any mods for it. No stage kits, no tuning capabilites, nothing! Fortunately, Rob (Fast06SS) and I were already friends, and he has a way of making things happen. I knew that I just wanted a 12 second car, and I did what I could to get there. I've had this setup on my car for almost a year now with no issues (knock on wood). Now that turbo kits and twin screw kits are coming out, I already know that I spent more now trying to go fast, than if I had waited. Oh well, you gotta pay to play.

 

Yeah I understand also what you're saying but you basically said it...you didn't wait and did whatever at that time to become fast. Now you have modifications up the ying yang and you could have saved some cash with a certain setup if you were patient.

I mean, anything can be done with the right amount of research and means. Any car can be turbocharged...and I've seen it. You just need to take the time to understand how it works. You don't need a kit if you know certain people who can do certain things and just understand what you need. It's easier than people make it seem...trust me, I've done the research and when you take the time to research, it's not all that complicated.

That's just one example though.

But I'm not knocking you specifically. What's done is done but you understand that if you were in the NOW sense of modifying, there are other options and you could probably make your own options.

I just want people to think more efficiently rather than how much LESS money they can spend to BARELY get by with having power that is just plainly pushing the limits of their supercharger and is way pass it's efficiency. Superchargers and Turbochargers were designed for a certain range...people just don't care anymore...not even the M62 guys but all type of f/i stock car owners. It's seckening to me and getting really old...turns me off especially when you can't talk some sense into people and they just plainly don't care.

 

Thats an absolute rip off. I'm close to or over 300 whp right now, and I didn't blow 2500 bucks on it. I do everything myself, and a twin screw swap is no different. I'm doing my own kit, and using a better blower. I'm shooting for real power, and my ultimate goal is 500-550 whp.

 

Thanks for all your input guys, like i said I plan on doing all the cooling mods and was wondering which one to start first.... I just picked up a 2mo old used C/A heat exchanger for a nice price shipped. I will be doing meth and dual plate next. Far as the post telling me I should of thought about the pulley size before getting it I did but there is a long story behind why i am with the 2.6 and not a 2.7-2.8. Anyways I hardly race my car I have done this stuff for for a little extra kick when I feel the need to have a little fun.