Subject	some data points on intercooler efficiency
Posted by	ztunerz on May 10, 2007 at 10:56 PM
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Message	recently i got to dyno 3 cars (including one of mine) with similar mods and boost levels on a dyno dynamics with a intake temp probe. Here is what i got on a 4th gear pull. We tried to start all runs at the same water temp and rpm starting temp ending temp Greddy 3 row fmic 83F 88F Stillen smic 86F 116F Z1 smic 82F 128F Apparently the theory floating around that intercoolers cool the best in the first 8 - 10 inches of the core may not tell the whole story. A long core (MIGHT) pose a bigger restriction but it sure as hell is more consistent and cools better. Just a FYI the ambient temps were very close to each other (mid to high 70's) BTW we also ran the greddy setup in steady state to tune some load cells upto 30 sec and we still had very little temp creep. Though this might be of interest. Harry Formerly yellowzxtt " If it doesn't make it faster, i don't care " Please visit www.ztuner.com to GO FASTER
Follow Ups	some data points on intercooler efficiency - ztunerz 22:56:45 05/10/07 ahh hah - kennys300zxtt 23:05:21 05/10/07 we still have the cooling problem on the Z in general - ztunerz 23:12:02 05/10/07 IMHO It is a known fact that there are cooling problems - dswtflip4u 23:16:00 05/10/07 people recommend smics for many resons - i am not disputing - ztunerz 00:06:22 05/11/07 nope (n/m) - aliaZ 23:43:20 05/10/07 figures - LOL (n/m) - ztunerz 00:16:31 05/11/07 Not. Even. Close. (n/m) - SeedyROM 00:09:48 05/11/07 figures - you too Seedy - LOL - ztunerz 00:17:43 05/11/07 Why do you need to change minds? - SeedyROM 02:52:31 05/11/07 Bah, grammar. Wouldn't let me delete to fix it ;) - SeedyROM 02:59:15 05/11/07 as soon as they're done cracking on neons, civics, eclipses, - LJZTT 00:47:07 05/11/07 did all three have the same turbo setup ? Different - The Devils Z 23:17:07 05/10/07 AH-HA, I think you hit the nail on the head, Devils (n/m) - FLEX 23:23:40 05/10/07 in a word - YES and the same injectors and tune - ztunerz 00:01:38 05/11/07 nope I wouldn't ... : ) and engine ..I meant "imagine" (n/m) - The Devils Z 08:21:43 05/11/07 its cool - this was a casual test - i was tuning cars - ztunerz 13:30:05 05/11/07 New or old version of Z1 IC's - MULTI-Z 00:02:16 05/11/07 new version - i doubt the 1 tube matters >>> - ztunerz 00:12:58 05/11/07 another thing is the loss of air getting to the radiator - Seb (specialty-Z) 08:46:34 05/11/07 i completely agree with that - i believe thats the ONLY - ztunerz 11:05:12 05/11/07 do other cars with Front Mounts have the same cooling issues (n/m) - The Devils Z 12:00:58 05/11/07 I don't - dogpile 12:26:14 05/11/07 some do and some don't >>> - ztunerz 13:18:55 05/11/07 ohh yeah and guess which FMIC made the most power - ztunerz 00:07:59 05/11/07 its good to know these things are getting tested.. - firstgearlaunch(Tampa) 00:21:21 05/11/07 How did you factor in ducting and/or actual exposed surface - YugoBernie (NoVA) 01:01:37 05/11/07 They all used a J spec noses and appropriate ducting - ztunerz 02:01:46 05/11/07 is it not trickier to cool smic's on a dyno than fmic's - LJZTT 01:06:14 05/11/07 blah - we had a HUGE fan blowing at each SMIC>> - ztunerz 02:07:02 05/11/07 that's cool, I wasnt interested in digging thru your post - LJZTT 14:30:34 05/11/07 IMHO, any and all temp testing on dynos is suspect - SeedyROM 02:55:28 05/11/07 interesting - jaku 02:01:37 05/11/07 Re: Do you have dynonumbers for the 3 cars,too? - chrisq 03:59:26 05/11/07 Id just like to add something, i was the test subject for - JayT 05:04:31 05/11/07 O and we only had 1 big fan - JayT 05:21:12 05/11/07 well its no wonder the SMIC's heat soaked (n/m) - aliaZ 08:00:11 05/11/07 or other reason (n/m) - Scotts94z32 10:11:54 05/11/07 my thoughts exactly... (n/m) - Waco300zx(DFW) 10:33:07 05/11/07 for the record - his car was not part of the test (n/m) - ztunerz 13:12:48 05/11/07 So one big fan pointing at the fmic and no fans - eriksu9 09:04:20 05/11/07 How can a comparo of SMICs wtih a FMIC - 240Z FeO2 10:12:58 05/11/07 ignore what he said - his car was NOT included in the test - ztunerz 13:12:08 05/11/07 That totally contradicts this post - SeedyROM 11:29:29 05/11/07 I did not quote his test - i did measure his temps too BUT - ztunerz 13:10:30 05/11/07 O, sorry Harry, thought you were. (n/m) - JayT 13:12:09 05/11/07 i just called the Dyno guy >> - ztunerz 13:25:08 05/11/07 That's some fan - SeedyROM 16:38:14 05/11/07 i did more cars besides yours - left yours out of the - ztunerz 10:43:35 05/11/07 during my dyno session last year - ZEngineer 08:25:51 05/11/07 If the thermal mass of the FMIC is the cause - CaliguyPurdue (redesigning) 11:54:55 05/11/07 95% surface area, 5% thermal mass - ZEngineer 12:21:03 05/11/07 Wait that doesn't add up... - CaliguyPurdue (redesigning) 13:24:30 05/11/07 Interesting info. - eriksu9 08:51:29 05/11/07 Here you go, I made sure they were balanced too. - whatsthegoodwørd 10:32:48 05/11/07 LMAO. Now Thats funny stuff!!!! - eriksu9 10:43:50 05/11/07 Harry....not sure if it was mentioned - Seb (specialty-Z) 09:16:20 05/11/07 seb - boost controllers were blitz dsb ids too - ztunerz 10:46:35 05/11/07 You should log the inlet/outlet temps after a few pulls. - Scotts94z32 10:10:56 05/11/07 probes were slid in just before the TB (n/m) - ztunerz 10:48:20 05/11/07 so that is the IC outlet, what about IC inlet? (n/m) - Scotts94z32 12:07:28 05/11/07 read my post again please (n/m) - ztunerz 13:07:10 05/11/07 i have a post where i did a 1st to 4th gear pull - ztunerz 11:02:06 05/11/07
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