I know there are people here running both, but what are the opinions on
which is better? I know if I ditch the intercoolers, I will see more boost.

If the temperatures were equal and assuming that more boost = more CFM, then no intercooler(s) means more power.

Adding in the Meth injection should allow me to make more power as it will cool the intake charge and allow me to run more timing, so more power.

If my thinking is correct, removing the intercooler and just running the meth should produce more power.


Opinions? Facts? Documentation?

Thanks,

Sean

 

[QUOTE=Sean94Z;4757231]I know there are people here running both, but what are the opinions on
which is better? I know if I ditch the intercoolers, I will see more boost.

If the temperatures were equal and assuming that more boost = more CFM, then no intercooler(s) means more power.

Adding in the Meth injection should allow me to make more power as it will cool the intake charge and allow me to run more timing, so more power.

If my thinking is correct, removing the intercooler and just running the meth should produce more power.


Opinions? Facts? Documentatio

Besides owning the Z28, I also have a SRT-4. I can tell you for a fact that a lot of turbo guys w/intercoolers run Methanol/Water injection and get around 20 additional whp using it. Cooler the charge, more timing, more power. I'd use both for the most power.

 

I'm planning on using both. living in the south and having to deal with Texas and Florida summers, a little more insurance can't hurt.

 

Does the Meth/Water Injection only work at WOT?

 

You need to include much more information for that question to be answered.
race car or street car? type of intercooler air to air air to water what? Brand of IC and is it custom or off the shelf? Front mount? do you have a big *** hole in the front of your car so it gets enough air? Answer these questions then I will answer yours I'll include facts and opinions. Jeff

 

Hopefully this link can help answer some of your questions.

http://www.srtforums.com/forums/show....php?t=107888e

 

My car is a street car that sees drag time. While it is not a daily driver, I do go and cruise around in it to the local 'street races' from time to time.

Currently I am running a 355 w/ 9:1 compression, AFR 190 heads and a moderate cam. I run a Procharger D1 and have seen up to 18#'s of boost through their twin intercooler package. I am currently spinning to around 6500 RPMs.

The car is a 94 Camaro w/ the license plate in the front, so, no I don't have a big hole in the front.

With the twin intercoolers, on a +85 degree day, I saw 180 degrees at the end of the runs. Track temperature was around 105 on these runs.

Need more info ? Let me know.

Thanks,

Sean

 

My understanding is that it runs progressive. As boost increases, so does the Meth/Water Injection. NO BOOST = NO METH ..

 

Opinions- OK Dump the twins you will pick up 4+#S One of the biggest problems is 4th gens and Air to Air ICs. there is no good way to get air into the IC. One of the other posters mentioned an SRT-4 guess what they come with a decent sized IC and a big honkin hole in front! Procharger worked with what room they had and came up with the twins, its OK considering the room they had to work with and being it is designed for street use. This system has a bunch of piping running to two small ICs on both sides of the car very inefecient. I would not recomend an IC on a 4th gen unless its a good front mount and you are willing to cut a whole big enough for the IC to do its job.

Fact- I ran a 3 core front mount ATI IC. I built an air scoop and opened the holes for the fog lights it worked ok I thought but I later ripped it out and ran pipe straight from the blower to the Throttle body and threw Alky injection on and picked up 4#s and a bunch of HP. I would not have have seen a boost increase if I left the IC and Just added ALKY! I could have probably upped the timing a bit and seen a moderate power increase.

Fact- I have another car with a powerdyne no IC no Alky and I logged a bunch of data with IAT on many different days both cold and hot. The IAT would steady out during normal driving and climb way up when I was under extended WOT runs when I started driving normal again the temps would steadilly drop until they were back to the normal cruising temps I would say they were back to normal within a few minutes. You make heat when you make boost and that is not very often when driving on the street.

Opinion- Air to Air intercoolers are just a boost restriction and extra weight on the front end in a 4th gen unless you spend big bucks on a custom IC and cut a big hole. Run good Alky kit and its always there when you need it under boost! I hope this makes sense. Jeff

 

OK, thanks

Jody J.

 

What were you using to log IAT Jeff?

 

AutoTap and a scanmaster both. I used to watch the IAT all time on the scanmaster.

 

Some kits are progressive some to an extent and others not at all.

 

Well the stock IAT sensor is very slow to react to changes in temperature and will not give you instantaneous readings. I thought maybe you had come up with a way to get accurate readings.

To answer your question about which to use intercooler or alky. Jeff has a good point about intercoolers being restrictive. I've fooled around with bypassing my front mount and I've picked up a good 3 psi. However I only noticed a small increase in power. This leads me to believe that I was getting significant increases in IAT.

Fact: I noticed a huge increase in power and psi moving from ATI 3 core to a 4" FMIC.

Fact: I noticed a larger increase in power when I went to ALKY and FMIC.

Opinion: Get a big blower and run a FMIC and ALKY. But if I had to choose; the alky is more important than the intercooler. Jeff has proven that you can make huge HP without an intercooler and using alky alone.

 

I say run both the intercooler and meth. True, you may see some gained boost by ditching the intercooler and just using the methanol. However most guys seeing 10#+ of boost need all the cooling they can get, and sometimes just methanol will not be enough, or it will limit the amount of timing and therefore power you can have. Methanol is a great way to help cool things on top of the cooling that an intercooler will give you though. Some guys can see as much as 75 RWHP gained by adding a methanol injection setup to their boosted, intercooled car after adding timing.

Methanol injection has different setups, as there are different manufacturer's, and different types of kits. Most are progressive systems that are boost referenced (Alky control and Snow Performance for example).