Roe Intercooler

[blackviper]

What do you think of using this as an intercooler? They claim reducing your intake temperature by as much as 50 degrees. You can also use more than one in series. Their test states that the ambient temperature was 85 degrees and the intake temperature after the cooler was 38 degrees. Lets here some coments and yes I am aware that we are compressing the air after the intake charge has been cooled. My theory would be, that if the air going into the S/C is cooler then it must be cooler after the S/C as well.

 

[Riff62]

Whats the gas in the tank?...Im skeptical that one unit would cool enough to be effective....You might need like 20 in series..lol..Then theres the problem of how far will a tank go, how far away you can mount the tank, and where you would put however many tanks you need..

 

[blackviper]

The bulb as they call it gets cooled by CO2. It reaches -80 degrees Farenheit. I believe that is pretty substantial. Their 10 LB bootle last over 5 min.

 

[Riff62]

I guess it would depend on how much heat is absorbed in the SC
Also if you have to run multiple bulbs, I would think that the time of use for a tank of CO2 would go down exponentially..hence multiple tanks. or at least a larger one..
Also, for FI If you are running at WOT, there has to be a number for cubic inches of air going into the SC..I would think that the bulb would need too be a certain size to cool that many CI of air..
Im not saying that this unit would not work..Just playing devils advocate here..

 

[tinygiants]

PBJ is working on a spraybar in the ROE intake. I have no clue how it works other than it is also using CO2.

We will know in the relatively near future how well it worked.

 

[azpyroguy]

I think that it would be easier and more efficent for someone to come up with a way to modify the A/C system to cool air going into the intake at will... and not have to worry about recharging the system....

Maybe build some sort of a network of cooling lines/tubes etc.. and run the cold side of the A/C freon/R123A through it...

Now I am aware that there is some parasitic power loss from running AC .. but if you could somehow figureout a way to cool the incoming air to say like 60 degrees... I think the benefits would far out weigh the power loss of running the A/C.

:dontknow:

 

[Bone]

NOS is very cold! ;'>

 

[blackviper]

Anyone else have any feedback on this?

 

[msdnga]

We piped in 62 degree air to a Vortech, non intercooled, and it dropped 10 degrees from 235 to 225. This was a 92 degree day and let the head unit cool down for 30 minutes before testing the cold air supply.

 

[belgiumbarry]

I think that it would be easier and more efficent for someone to come up with a way to modify the A/C system to cool air going into the intake at will... and not have to worry about recharging the system....

Maybe build some sort of a network of cooling lines/tubes etc.. and run the cold side of the A/C freon/R123A through it...

Now I am aware that there is some parasitic power loss from running AC .. but if you could somehow figureout a way to cool the incoming air to say like 60 degrees... I think the benefits would far out weigh the power loss of running the A/C.

:dontknow:

let me make a little calculation :

at 6000 revs our engine needs :

8.3l/1000 x 6000/2 x 60 minutes = 1.494 m3/h air... let's say we have 1.4 bar FI : 1.494 m3/h x 1.4 = 2.092 m3/h.

To cool this air 1°C you need :

2.092 m3/h x 1.29 kg/m3 x 0.24 kcal/kg x 1 °C = 647 kcal = 0.75 kW

Now how much KW is our A/C ? :dontknow: but i'm afraid it woudn't do much...if you see that approx at 4000 revs you need 0.5 kW for 1°C reduction....

 

[blackviper]

What would be the thoretical effects of circulating ambient air thru or better said around this Cryo Bulb at -80 degrees Farenheight. Can someone please do that mathematical calculation? Maybe we can plumb this to some sort of core inline before the S/C.

 

[HV SRT]

let me make a little calculation :

at 6000 revs our engine needs :

8.3l/1000 x 6000/2 x 60 minutes = 1.494 m3/h air... let's say we have 1.4 bar FI : 1.494 m3/h x 1.4 = 2.092 m3/h.

To cool this air 1°C you need :

2.092 m3/h x 1.29 kg/m3 x 0.24 kcal/kg x 1 °C = 647 kcal = 0.75 kW

Now how much KW is our A/C ? :dontknow: but i'm afraid it woudn't do much...if you see that approx at 4000 revs you need 0.5 kW for 1°C reduction....

That made my brain hurt.

 

[belgiumbarry]

What would be the thoretical effects of circulating ambient air thru or better said around this Cryo Bulb at -80 degrees Farenheight. Can someone please do that mathematical calculation? Maybe we can plumb this to some sort of core inline before the S/C.

i don't think the needed surface would be a problem...easy to fabricate .
Should have to check the specific evaporation heat from CO2 liquid... so we can calculate how much is needed in time to accomplish the wished degrees in lowering temperature .... can do it tomorrow at work...

 

[blackviper]

Thank you sir.

 

[belgiumbarry]

Thank you sir.

no thanks ,you're welcome :rock:

 

[nycstev]

let me make a little calculation :

at 6000 revs our engine needs :

8.3l/1000 x 6000/2 x 60 minutes = 1.494 m3/h air... let's say we have 1.4 bar FI : 1.494 m3/h x 1.4 = 2.092 m3/h.

To cool this air 1°C you need :

2.092 m3/h x 1.29 kg/m3 x 0.24 kcal/kg x 1 °C = 647 kcal = 0.75 kW

Now how much KW is our A/C ? :dontknow: but i'm afraid it woudn't do much...if you see that approx at 4000 revs you need 0.5 kW for 1°C reduction....

Could you attach units to this dimensional analysis/? Some thing seems wierd here. 2.092 CUBIC METERES PER HOUR . THATS IT? SEEMS AWFULLY LOW:dontknow:

 

[belgiumbarry]

Could you attach units to this dimensional analysis/? Some thing seems wierd here. 2.092 CUBIC METERES PER HOUR . THATS IT? SEEMS AWFULLY LOW:dontknow:

8.3l/1000 = 0.0083 m3 total cylinder volume
6000 revs/2 = 4 stroke , so 2 revs for 1 filling

revs are per min so "x 60" to have it per hour....

The ROE gives about 1.4 bar pressure so " x 1.4" ....

i'm i wrong ? :dontknow:

There you can already see the intake velocitys ! if for example you suck this trough a air filter of diameter 150 mm you have :

2.092 m3/hour : 3.600 x 0.15 (2) PHI/4 = 33 m/sec !!!! that's quick....

 

[nycstev]

8.3l/1000 = 0.0083 m3 total cylinder volume
6000 revs/2 = 4 stroke , so 2 revs for 1 filling

revs are per min so "x 60" to have it per hour....

The ROE gives about 1.4 bar pressure so " x 1.4" ....

i'm i wrong ? :dontknow:

There you can already see the intake velocitys ! if for example you suck this trough a air filter of diameter 150 mm you have :

2.092 m3/hour : 3.600 x 0.15 (2) PHI/4 = 33 m/sec !!!! that's quick....

Ok 1.4 x1000 or 1400 m3 per hour makes alot more sense than 1.4 m3/hr!

 

[1sicponi]

Was going to do the math but you guys beat me to it. LOL. Sounds to me like it will not work without a house air conditioner in the bed along with a generator to power it. Nice cold dry air winter day sounds like the best way to get cold air into the intake. Can feel the difference on my turbo with inter cooler on these days. Unfortunately it is not on my NR. mac

 

[ViperTruck2933]

Water/Meth is tried, tested, proven and inexpensive. Why not just use w/m?:dontknow: