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Guest snotass
Good one Dave, I presume all the gear I sent over arrived safely?

Rob

Hi Rob,

all's good, arrived Tuesday, nice machining - nice kit.

Next high comp motor being worked out - custom pistons on order. Your cradle will be in this new engine together with a 88mm compressor.

The current compressor is getting it's exhaust housing opened up a tad...............................................

Thanks for your support.

what was the reasonin behind leaving the air-air intercooler on with you running methanol?

just ignore ash and the other twats, and kepe posting specs etc for the rest of us!

You beat me to the question shanef.. even the nitrous wouldn't be that much of a power adder.. more so to get the turbo up to speed on the line?

Guest snotass
what was the reasonin behind leaving the air-air intercooler on with you running methanol?

just ignore ash and the other twats, and kepe posting specs etc for the rest of us!

Not sure if i quite know what your trying to ask me - please elaborate.

As for the NOS - that can be used in a few areas when i require it , differant stages of ramp, out of the hole or even top end - varies.

Not sure if i quite know what your trying to ask me - please elaborate.

As for the NOS - that can be used in a few areas when i require it , differant stages of ramp, out of the hole or even top end - varies.

other intercooler setups i have seen when the engine has been run on methanol, have run no intercooler at all, only a pipe joining the plenum to the turbo

like this:

methcoolersetup.png

Guest snotass
other intercooler setups i have seen when the engine has been run on methanol, have run no intercooler at all, only a pipe joining the plenum to the turbo

like this:

methcoolersetup.png

Compressed air equals heat generation, a meduim such as an intercooler in this scenario is simply a short burst heat sink, unlike in street or circuit appplications.

Laten heat of evaporation will only remove so many btu's in a given period, so if the air intake with no cooler is say 80 deg and the Methanol evaporates at X thus adding extra cooling in the velocity stacks and through to the cylinders - yes. Well if there is a plate and fin heat sink in place between the two and the temp exiting the cooler and entering the intake is say 32 deg then it has to be denser and cooler already before introducing the methanols cooling charertaristics as well.

got to be better than with out - wouldn't you think? See below. Also look up - Isothermal and adiabatic expansion

The input of energy required by a change of state from liquid to vapor at constant temperature is called the latent heat of vaporization. When a liquid undergoes a change to vapor state at normal boiling point the temperature of the liquid will not rise beyond the temperature of the boiling point.

The specific latent heat of vaporization is the amount of heat required to convert unit mass of a liquid into the vapor without a change in temperature.

Product Latent Heat of Evaporation

(kJ/kg) (Btu/lb)

Acetic acid 402 173

Acetone 518 223

Alcohol 896 385

Alcohol, ethyl (ethanol) 846 364

Alcohol, methyl (methanol) 1100 473

Alcohol, propyl 779 335

Ammonia 1369 589

Aniline 450 193

Benzene 390 168

Bromine 193 83

Carbon dioxide 574 247

Carbon disulfide 351 151

Carbon tetrachloride 194 83

Chloroform 247 106

Decane 263 113

Dodecane 256 110

Ether 377 162

Ethylene glycol 800 344

Freon refrigerant R-11 180 77

Freon refrigerant R-11 165 71

Freon refrigerant R-11 232 100

Glycerine 974 419

Helium 21 9

Heptane 318 137

Hexane 365 157

Hydrogen 461 198

Iodine 164 71

Kerosene 251 108

Mercury 295 127

Nitrogen 199 86

Octane 298 128

Oxygen 214 92

Propane 428 184

Propylene 342 147

Propylene glycol 914 393

Sulphur 1510 650

Toluene 351 151

Turpentine 293 126

Water 2257 970.4

* 1 kJ/kg = 0.43 Btu/lbm = 0.24 kcal/kg

Latent heat of evaporation at atmospheric pressure.

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