44 replies to this topic

[Wil_h]

My problem is that you keep saying that the setup you have does not need any extra cooling. And your reason for this is that your inlet tube is icing up. This is no proof as far as I am concerned, proper air temperature monitoring is. This will either prove or disprove your theory. And prove or disprove the figures published by Eaton.

In reality all forced induction engines will benefit from intercooling. The reason I mentioned turbo setups is to illustrate that additional air cooling would be of benefit as supercharged air tems are higher.

It is a fact that if you want maximum power then a turbo is the thing to have. The maths shows this and so do all the results I have seen. There are of course benefits to supercharging, such as more low-down power.

[1987_ParkLane]

Wow this has caused quite a stir .

Anyway, I know realise that the is no way of have and inter/charge cooler on this supercharger set up I have. But you can get the water jacket this that does cooler the charger itself.

[THE STIG]

My problem is that you keep saying that the setup you have does not need any extra cooling. And your reason for this is that your inlet tube is icing up.

no where have i said that the set up does not need any extra cooling

if you read my posts i state that unless running high boost etc you dont need it

i have not stated that you dont need it due to inlet icing up all i have stated is that it ofsets some of the heat produced to the compressing of the inlet charge

[Ethel]

It's not a real stir, all the contributors know keeping an open mind and developing your understanding is how you build more successful engines.

Isn't specific heat capacity a constant related to mass? I think that means a temperature reduction, of say 10 degrees, will dump more heat from a denser (compressed) gas. Of course the biggest bug bear is the fuel.

[coopertrooper2001]

VMax Charger Cooler.

[jameswildcooper]

VMax Charger Cooler.

did it make any difference on yours?

[1987_ParkLane]

did it make any difference on yours?

Same here .

[coopertrooper2001]

Sorry for the delayed reply.

Honestly I am not sure what difference it made. It should reduce heat from the charger, so general engine bay temp maybe a little lower, but if you are looking to reduce coolant temp, then fit a secondary radiator IMO.

[Prawn]

sorry for the off topic question, but in that pic, your charger on the MPI engine looks to be more towards the drivers side than the carb'd installations, which would imply that the charger is running off the standard mpi bottom pulley, also, you don't seem to have the upper tensioner wheel on the charger that the carb'd setup's run.

Do the mpi kits run a single belt around the crank/waterpump/alternator/charger?

[coopertrooper2001]

sorry for the off topic question, but in that picture, your charger on the MPI engine looks to be more towards the drivers side than the carb'd installations, which would imply that the charger is running off the standard mpi bottom pulley, also, you don't seem to have the upper tensioner wheel on the charger that the carb'd setup's run.

Do the mpi kits run a single belt around the crank/waterpump/alternator/charger?

Only a year late, yes the MPi runs a single belt.

[Grahamxx]

Personally I can't see that charge cooler working efficiently. Optimum ACT's (Air Charge Temperature) is 39 degrees. Don’t be fooled that the low the ACT’s the better performance is obtained...

[joe90]

I have kept an eye on charge cooler temps (only on the outside casting) & the temp has never gone over 55c.
Having a water cooler as vmax (plumbed of the engine im asumming). water temp at 88c dose not add up to me?
I might be getting it all wrong?
JOE

[ivanhoew]

Personally I can't see that charge cooler working efficiently. Optimum ACT's (Air Charge Temperature) is 39 degrees. Don’t be fooled that the low the ACT’s the better performance is obtained...

graham ,just to be sure ,are you saying you can prove that any air temp below 39 degrees c is bad for power ?

[Grahamxx]

Personally I can't see that charge cooler working efficiently. Optimum ACT's (Air Charge Temperature) is 39 degrees. Don’t be fooled that the low the ACT’s the better performance is obtained...

graham ,just to be sure ,are you saying you can prove that any air temp below 39 degrees c is bad for power ?

Temps below 39 degrees will be 'ok', but to get the best power you need to stay as close to 39 degrees as possible.

[Grahamxx]

I have kept an eye on charge cooler temps (only on the outside casting) & the temp has never gone over 55c.
Having a water cooler as vmax (plumbed of the engine im asumming). water temp at 88c dose not add up to me?
I might be getting it all wrong?
JOE

Is your charge cooler using its own water supply, or using the water from the engines radiator?