Ayoustin

iTrader: (2)

I'll buy it off ya for $300 😉

kaj

iTrader: (60)

Luuuuucky. I paid $400-450ish...
Worth it!

Balrok

iTrader: (15)

I got hosed on their "move". Ordered Endless brake fluid from them as I usually do, a good 3 weeks before an event. 2 weeks go by without an email or any call back from their phone message deal. Had to write a 3rd email more strongly worded before I got someone to reply as to where it all was. Ended up finding it locally.

deylag

iTrader: (23)

Could you please share the datalog? I would like to see how the IAT rises.

EVO8LTW

iTrader: (41)

Here is a log that includes the AIT data.

deylag

iTrader: (23)

Awesome this is exactly what I needed. Hopefully I will have some datalogs to compare with soon.

KingTal0n

iirc compressor outlet temps are in the range 250-350*F are not uncommon.

At the very least need also the log of pre-intercooler air temp, and some way to tell if the sensors are accurate (might need 4 sensors instead of 2, etc...).
without knowing pre-ic temps, they could be very high, it is unfair to judge intercooler capability without knowing.

From the data it is only possible to tell that it 'seems to work properly' and intuitive i.e. rate of cooling increases w/ MPH, intercooler seems to support more cooling at high MPH and intercooler effectiveness as a function of MPH is a factor. So an intercooler that seems to work 'poorly' on a dyno could function well in a racing application where the car is instantly or always 100+mph. As just one example why it is hard to compare or judge intercoolers just based on flow rates, pressure drops, airflow this and thats without considering the big picture with its myriad details.

EVO8LTW

iTrader: (41)

The datalog here shows AIT vs ambient on a racetrack in hot, humid conditions over multiple laps. I think that's what most people want to know. The only thing missing is swapping in another FMIC to compare. Someone send me a Plazmaman for free and I'll post up the data for that one too

KingTal0n

Ambient does not show or allow for compensation of air molecular mass losses. There needs to be a sensor post compressor, or you need compressor wheel speed data to make efficiency prediction based on 'island' of compressor map in use.

For example, if there is a boost leak, compressor wheel speed Increase results if the same pressure is demanded. Turbine rpm must increase, there is now more exhaust gas backpressure and IAT which leads to detonation (usually on poor fuels as 93) which is why big boost leaks are deadly to engines using gas, and overspeed to the turbo obv. the higher wheels speed reflects in the compressor map, adjusting/changing compressor outlet temperature (loading the intercooler in an "incorrect" fashion), as moving right from center island is getting hotter, higher IAT and demanding unrealistic results from an intercooled designed to handle much lower inlet temperature in an application. Higher initial intercooler inlet temperature, means higher outlet temperatures.

For example if there are two identical cars, everything is the same except intercoolers are different. There is no way to compare the efficiency of the intercoolers using that posted log because we don't know how many air molecules are being lost between the compressor and intercoolers of those cars. If one car is leaking a different number(99.99999% likely), it will have a different wheel speed and therefore intercooler inlet temp will be changed, It would unfairly offset the comparison of intercoolers without knowing compressor wheel speed, and having a fairly good reason to believe that the turbo is in great shape to provide that kind of performance (50k mileage, 150k mileages, 250k, mileage, take their toll on compressor wheel performance). would want accurate inlet temp data to make a more fair comparison at the very least, it could be going in at 280*F or 300*F