intercooler delete pipe
and to further this discussion, here is what our analysis showed on th at bad IM.
the fuel, once it is fully atomized in the intake, is evenly distributed. however, if sufficient fuel is injected such that the air is already cool, the fuel can remain in liquid form rather then vapor. once it is back into liquid, the liquid carries far more mass and momentum carrying it to the end of the manifold rather then floating around the plenum and evenly being distributed. this is all theoretical. though. the only evidence i had of this was from the EGT data i collected.
the fuel, once it is fully atomized in the intake, is evenly distributed. however, if sufficient fuel is injected such that the air is already cool, the fuel can remain in liquid form rather then vapor. once it is back into liquid, the liquid carries far more mass and momentum carrying it to the end of the manifold rather then floating around the plenum and evenly being distributed. this is all theoretical. though. the only evidence i had of this was from the EGT data i collected.
https://www.evolutionm.net/forums/sh...er#post1577190
I love testing, the knowledge gained is very cool. Too bad I didn't like school this much, maybe I could have passed a few classes!!
We took our standard FMIC off of our EVO yesterday. We replaced it with a straight piece of 2.5" SS tubing.
I wanted to get an idea how much pressure loss we were actually getting and see how much the whp was effect without an intercooler, using the same tune and alky that we had in the car.
I was pretty surprised. It is COLD in our dyno room. I am guessing it is in the 20 degree F range in there. So if ever not having an intercooler wouldn't hurt you much it would be on a day like it is today. Well, it still hurt and hurt pretty big.
Remember, when testing the car we only make a single 3rd gear pull, all pulls start at 2,000 rpm and run to 7,500 rpm.
The peak boost was completely uneffected by having the straight pipe on the car, the boost at redline, after two pulls, looked to be about 1 psi higher. We were reaching 21-21.5 psi at redline with alky kit on the car before and the boost looked to be right at 22 psi with no intercooler.
This is good as we do advertise this intercooler as having .83 psi of pressure drop. Looks to be right on the money with that number, maybe even a little less.
Now for the other surprise. Going from the exact same tune with an intercooler and the alky to NO intercooler and the alky the car lost 29 whp. That is pretty substantial considering the inlet air temps to the turbo being in the 20 degree F range.
Try and tell me now that a good intercooler doesn't make a difference
David Buschur
http://www.buschurracing.com
We took our standard FMIC off of our EVO yesterday. We replaced it with a straight piece of 2.5" SS tubing.
I wanted to get an idea how much pressure loss we were actually getting and see how much the whp was effect without an intercooler, using the same tune and alky that we had in the car.
I was pretty surprised. It is COLD in our dyno room. I am guessing it is in the 20 degree F range in there. So if ever not having an intercooler wouldn't hurt you much it would be on a day like it is today. Well, it still hurt and hurt pretty big.
Remember, when testing the car we only make a single 3rd gear pull, all pulls start at 2,000 rpm and run to 7,500 rpm.
The peak boost was completely uneffected by having the straight pipe on the car, the boost at redline, after two pulls, looked to be about 1 psi higher. We were reaching 21-21.5 psi at redline with alky kit on the car before and the boost looked to be right at 22 psi with no intercooler.
This is good as we do advertise this intercooler as having .83 psi of pressure drop. Looks to be right on the money with that number, maybe even a little less.
Now for the other surprise. Going from the exact same tune with an intercooler and the alky to NO intercooler and the alky the car lost 29 whp. That is pretty substantial considering the inlet air temps to the turbo being in the 20 degree F range.
Try and tell me now that a good intercooler doesn't make a difference
David Buschur
http://www.buschurracing.com
The Buschur experiment was valid and good, but the original poster is planing to change more varibles.
Buschur only changed intercooler versus no intercooler. The original poster will also change the amount of meth used with no intercooler. So your quote is interesting, but no proof that it will or will not work.
The question is, can more meth make up for a loss of 29 whp, and is it worth it?
Buschur only changed intercooler versus no intercooler. The original poster will also change the amount of meth used with no intercooler. So your quote is interesting, but no proof that it will or will not work.
The question is, can more meth make up for a loss of 29 whp, and is it worth it?
is it worth it?
imagine removing 20 pounds from the front of the car, making all that room available.
its a very positive modification, without even adding the possibility of more power.
If the cool injection is large enough it should add power over the stock configuration.
the trouble is, to my mind, the possibility of injection failure, although I suppose with fail-safes one could limp home.
It is a high maintenance modification that few of us could feel comfortable with.
think of it as being married to a high fashion model, really great for parading around, except for the cell phone beatings you have to take.
imagine removing 20 pounds from the front of the car, making all that room available.
its a very positive modification, without even adding the possibility of more power.
If the cool injection is large enough it should add power over the stock configuration.
the trouble is, to my mind, the possibility of injection failure, although I suppose with fail-safes one could limp home.
It is a high maintenance modification that few of us could feel comfortable with.
think of it as being married to a high fashion model, really great for parading around, except for the cell phone beatings you have to take.
Thread
Thread Starter
Forum
Replies
Last Post
overdrive1
For Sale - Interior / Exterior / Sound / Styling
0
May 31, 2017 06:45 PM
05-EVO-GSR
For Sale - Interior / Exterior / Sound / Styling
0
Jun 26, 2016 01:22 PM
WTB[Northeast]: Muffler delete pipe for IX MR
AJCaron12
For Sale/WTB - Engine / Drivetrain / Power
1
Sep 19, 2015 03:01 PM
