Just had a new thought. I am going to pulley down a bit shortly. Was thinking of ~10lbs on 93? However what about doing meth and upping the boost to maybe 12ish or is 14 safe with the right tune? Also would that require a lot of meth and is it asking for trouble for my daily? Reliability is paramount as these late models aren't cheap!!!

I mostly putt around town unless I need to move into another lane in a hurry so I do get into boost as needed but rarely wind it out. Get a little race once in a great while. I also like the idea of nitrous but it would require a boost pump of some type because the in-tank pump is limited.
It would also require purging and such to get ready. The cost is probably similar I'm guessing for the right setup. Getting a custom tune either way.

Both would have a pronounced cooling effect on iat's. Only looking for maybe 75-100 at the wheel with tune and mods.
Your thoughts gentlemen?

 

Nitrous will give you next to nothing for cooling. Added Hp for sure. But cooling naw probably not see much. Here's why.
If your making 600hp and it's getting hot.
Adding a 75 shot of nitrous is not enough volume of "coldness"to do much. % of return.

But adding nitrous you would not need to up your boost ( change pulleys)
You are adding more power. From the oxygen and fuel you are adding.
You also don't have to purge a nitrous system.

 

I say pulley down and add meth. I drive mine everyday. Just add a warning light when your low on meth. Smileys Racing sells meth by the gallon. I buy 5 gallons about every 2 months.

 

Thanks for clarifying on the cooling Rick. Good to know. I really do think I want to pulley down a bit because I may as well use what I've already got anyway.

How expensive is it and what would a good setup cost. How much boost is reasonable? Also with so many hurt engines due to clogged nozzles, pump failures and such is there a fail safe device of some sort just in case of Murphy's law?
Thanks for all replies.

 

I run 15lbs and an alky control kit on my daily, zero issues. Get a good kit and your a lot less likely to run into any sort of failure. The alky control kit runs about $700.00 if I remember correctly and the nozzles are filtered so no clogs, it also reminds you when to fill up

 

I ran an alkycontrol kit from Juan or Julio or whatever his name is many years ago. The kit was awesome and I fully give it credit to keeping my bored 5.3 alive while I was learning to tune myself.....as I love to get aggressive with things (timing for example).

That said, there is one thing about meth (as it refers to cooling) that does not get talked about much that I would like to comment on.

Does it have a cooling effect. Damn right. Is it quantifiable......probably not.

Reason I say this (and possibly the reason you get wildly different answers from different people on the subject) is that when trying to quantify the cooling effect of meth is absolutely directly related to the location of the iAT sensor in the system.

If you are injecting the meth a few inches from the throttle body and the IAT sensor is in the intake elbow, your data acquisition will show a very significant drop in temps.

If you are injecting the meth pre-compressor, or just after the compressor (in other words a long way from the location of the IAT), your obviously going to get a higher IAT reading if the IAT is still in the elbow right behind the throttle body.

Just a little something to think about. I don't have enough data gathered or experience to actually show you quantifiable results of my theory on this, but would just like to provide some info for you guys to think about.

My personal opinion (right or wrong) is that I like to put the meth nozzles within no less than 8" of the tubing before the throttle body. I also like to have my IAT sensor in the intake elbow just after the throttle body. just the way i do it.

Sorry for the rambling......may be usless info but I felt like typing it anyway.

 

One more thing I'd like to add for those that have seen the cold side piping that I currently run on the truck. My IAT is in the intake pipe before the throttle body. I did thing to avoid any possible heat soak issues that can arise with the IAT in behind the throttle body. Also, on my truck I wasn't running meth as a crutch as the combo was a race gas A2W cool drag only deal.

 

Thanks YB Slow & Blown06! Anything else anyone can add please?

 

I'm looking at the same thing right now, will pulley down and add meth, will use the alky kit.

Can use the washer tank kit ($650) or add a tank (extra $150) to the second battery tray. The washer tank will allow you to use the low fluid dummy light on dash to let you know when running low. Tuner will be able to build some failsafes in.

You won't be using meth all the time, meth will trigger at a given PSI for it to start. So in that manner like the bypass valve where you aren't under boost all the time.

 

On another note wonder how much boost the stock valve springs will handle? I shift at 5800.