So, I spent quite a bit of time this morning going thru a crap ton of logs (you’re welcome). There are two sets of logs with the Dinan IC (bar plate) and one set with the Evo2 Comp (tube fin) below.
The environmental and use differences between the logs should heavily assist the Dinan: ambient temps are much colder in one set, and pulls are only halfway into 4th gear in the other.
For the Evo2 log, I didn’t start the recording until having already completed many pulls so the IC is already nice and hot at the start of the log, and most of the pulls are all the way thru 4th. So, this is not fair bc in normal daily driving before doing pulls I would consistently see IATs 10-20F cooler with the Evo2 as a starting point.
Outcome:
When singling out similar types of pulls to review IAT rise, the Wagner increases are lower. You can also see this in the general overall IAT temp line trend increasing over time with the Dinan. The basically shows that the Wagner has more cooling capacity than the Dinan, which I don’t think is a shocker to anyone here.
As for recovery, both ICs reduced temps around 10F between pulls going halfway into 4th. The Wagner recovered a little more when doing pulls all the way thru 4th.
Would a larger bar plate have performed better than the Dinan? Yes. Would the Evo 2 have shown even better recovery if I had started logging the earlier pulls? Probably.
So, which is better, tube fin or bar plate? Inconclusive! These logs are exactly what I mean that you cannot throw out a blanket statement that one type of heat exchanger is better than the other. It’s more about which specific products are available on the market, and what works best for someone’s specific use scenarios.
Bottom line, the Evo2 Comp is large enough for anyone running up to a Stage 2 tune on the street. It’s also large enough for anyone not consistently doing more than 20min track sessions on hot summer days. And, it weighs 10lbs less than the large heavier bar plate IC’s that may have a little more cooling capacity.
For those of us pushing the use case boundaries, we need more cooling than the Evo2 and many of the bar plate ICs. If one of you guys could go buy the large VRSFs and the Evo3 Comp and do the same logging comparison, we would all appreciate it!
Dinan IC logs
https://www.bootmod3.net/log?id=5c2c...729b51747a4b72
https://www.bootmod3.net/log?id=5c8c...729b3511ea8fd1
Evo2 Comp logs
https://www.bootmod3.net/log?id=5cb9...729b44f4273e3b