View Poll Results: E98... Intercooler?
Yes
8
57.14%
NO
6
42.86%
Voters: 14. You may not vote on this poll
High HP, E98.... Intercooler???
03-10-2011, 12:16 PM
#2
There will always be major gains to be had with intercooling on any high boost setup. A2W>A2A. The colder and denser the charge, the more power you can make. I'm running e85 and a big A2W.
03-10-2011, 12:47 PM
#3
The A2W will give you more safety, wider tune window and the POTENTIAL to make more power. It does come at the expense of more initial investment, in between round maintenance (sucks), extra weight in the car and another fluid that could leak out and cause a crash. Is it needed? No.
My experience with A2A on drag cars: It heats up during the burn out and staging since you are blowing hot air through it and the car ain't movin. It is afterall a heat exchanger. By the time you make the pass, it is very hot and doesn't have enough time to cool off.
For a road race cars, towing rig, etc, A2A might work great since you have a lot of time at higher speed to cool it off, but for drag cars I think it's a waste. And that's speaking from experience.
This is the A2A combo to which I refer, I built it, tune it, fix it, etc. It's got the biggest A2A I have ever seen. It's a Procharger unit that is 6" thick with 4" I/O. If I did it over, it would have either no cooler or A2W:
My experience with A2A on drag cars: It heats up during the burn out and staging since you are blowing hot air through it and the car ain't movin. It is afterall a heat exchanger. By the time you make the pass, it is very hot and doesn't have enough time to cool off.
For a road race cars, towing rig, etc, A2A might work great since you have a lot of time at higher speed to cool it off, but for drag cars I think it's a waste. And that's speaking from experience.
This is the A2A combo to which I refer, I built it, tune it, fix it, etc. It's got the biggest A2A I have ever seen. It's a Procharger unit that is 6" thick with 4" I/O. If I did it over, it would have either no cooler or A2W:
03-10-2011, 08:34 PM
#5
The A2W will give you more safety, wider tune window and the POTENTIAL to make more power. It does come at the expense of more initial investment, in between round maintenance (sucks), extra weight in the car and another fluid that could leak out and cause a crash. Is it needed? No.
My experience with A2A on drag cars: It heats up during the burn out and staging since you are blowing hot air through it and the car ain't movin. It is afterall a heat exchanger. By the time you make the pass, it is very hot and doesn't have enough time to cool off.
For a road race cars, towing rig, etc, A2A might work great since you have a lot of time at higher speed to cool it off, but for drag cars I think it's a waste. And that's speaking from experience.
This is the A2A combo to which I refer, I built it, tune it, fix it, etc. It's got the biggest A2A I have ever seen. It's a Procharger unit that is 6" thick with 4" I/O. If I did it over, it would have either no cooler or A2W:
My experience with A2A on drag cars: It heats up during the burn out and staging since you are blowing hot air through it and the car ain't movin. It is afterall a heat exchanger. By the time you make the pass, it is very hot and doesn't have enough time to cool off.
For a road race cars, towing rig, etc, A2A might work great since you have a lot of time at higher speed to cool it off, but for drag cars I think it's a waste. And that's speaking from experience.
This is the A2A combo to which I refer, I built it, tune it, fix it, etc. It's got the biggest A2A I have ever seen. It's a Procharger unit that is 6" thick with 4" I/O. If I did it over, it would have either no cooler or A2W:
OP, yes, for drag racing an air to icewater intercooler is the most efficient charge cooler.
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03-10-2011, 09:56 PM
#8
You may be right. There is a lot of distance between that pass charge pipe and the header. I'm not exactly sure how I could have plumbed it much different, but oh well. And, this isn't the only A2A big HP car I've tuned. The others have similar high IATs as well.
03-10-2011, 11:40 PM
#10
The biggest problem that in making this decision is that it is very difficult to see the difference until you try it both ways. We just did a test last night on LS2Formula's car at the track. First made a pass with the A2W empty on 24 psi, then made a pass with it full of ice. Unfortunately, he was having some yet to be determined suspension issues that caused the iced down pass to lose traction and he had to lift or eat the wall and it went on the trailer after that. On the no IC pass we saw 170* charge temps at the end of the 8.3@170 mph run. On the pass with the IC we saw 102* at the end of the 8.6@169 pass. More importantly though was that the EGT temps were 250* cooler on the IC pass.
03-12-2011, 03:37 AM
#12
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The biggest problem that in making this decision is that it is very difficult to see the difference until you try it both ways. We just did a test last night on LS2Formula's car at the track. First made a pass with the A2W empty on 24 psi, then made a pass with it full of ice. Unfortunately, he was having some yet to be determined suspension issues that caused the iced down pass to lose traction and he had to lift or eat the wall and it went on the trailer after that. On the no IC pass we saw 170* charge temps at the end of the 8.3@170 mph run. On the pass with the IC we saw 102* at the end of the 8.6@169 pass. More importantly though was that the EGT temps were 250* cooler on the IC pass.
you sure your temp probes are correct? your numbers dont seem right...
a normal temp is more like 240 deg F with out a intercooler..
i know from my own car not running a intercooler we saw 244deg no intercooler on a 8.2 pass.
with a ice box we see 50deg at the end of a 8.2 pass.
03-12-2011, 12:23 PM
#13
still seeing 102 deg F full of ice??
you sure your temp probes are correct? your numbers dont seem right...
a normal temp is more like 240 deg F with out a intercooler..
i know from my own car not running a intercooler we saw 244deg no intercooler on a 8.2 pass.
with a ice box we see 50deg at the end of a 8.2 pass.
you sure your temp probes are correct? your numbers dont seem right...
a normal temp is more like 240 deg F with out a intercooler..
i know from my own car not running a intercooler we saw 244deg no intercooler on a 8.2 pass.
with a ice box we see 50deg at the end of a 8.2 pass.
03-12-2011, 12:33 PM
#14
still seeing 102 deg F full of ice??
you sure your temp probes are correct? your numbers dont seem right...
a normal temp is more like 240 deg F with out a intercooler..
i know from my own car not running a intercooler we saw 244deg no intercooler on a 8.2 pass.
with a ice box we see 50deg at the end of a 8.2 pass.
you sure your temp probes are correct? your numbers dont seem right...
a normal temp is more like 240 deg F with out a intercooler..
i know from my own car not running a intercooler we saw 244deg no intercooler on a 8.2 pass.
with a ice box we see 50deg at the end of a 8.2 pass.
03-13-2011, 05:46 PM
#17
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We always pre iced, cooled the i/c down, then drained water and iced back up. 45 degress at start of run and 55-70 @ the end, but this was with a f2 procharger and 38lbs of boost. 7.60's @ 186 on 28/10.5's SBF of coarse
03-13-2011, 06:07 PM
#18
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on the dyno had the boost at 28psi and the temps didnt rise a bit, but im guessing at the track the temps will rise another 10-15 with the extra boost and melt another couple of KG of ice each pass..
