oil seems to take longer to heat up because you have cold air hitting the oil cooler!

this is 2011, i am not sure why people want to warm up their vehicle when the manufactures try everyway to get the car to warm up quicker and go into close loop

When I leave the house I'm ready to hit it. HA

I can tell you that oil pressures run near 100psi at 2k rpm when the oil is cold. Once the oil hits about 180F, the pressures drop to about 60psi at 2k rpm. Also, removing oil with my oil extractor is much slower with cold (more viscous) oil than when it's up to temp. Both observations are enough to make me take it easy until the oil heats up. However, i can't really comment on any detrimental effects of not doing so.

How is the Stillen oil cooler on hot days?

Also, has anyone looked at the Fluidyne cores? They're pricy, but Ive heard a lot of good things about them.

it looks like some of you think that the increase in oil temp affects hp and some say it doesnt. what i experienced on teh track is that when my temps hit about 260, there is definitely less power - not sure if that's from the engine making less power b/c of the heat or b/c "limp mode" is beginning to kick in. but for sure the car feels like it's bogging at anythign above 6000rpm - it just wont rev up or hesitates real bad as it's reving up. if i continue pushing it, then it will "bog" much harder and at lower rpms.

whatever the reason is, i just want cooler oil so i can avoid this problem. i'm just looking to hear from someone who's actually used a setrab (or any other cooler) and had good results, *even* in hot weather. the problem of "too cold" on the street, i'm not worried about - i can just block off the cooler or something.

If you track it just go big. You're oil will never be too cold on track and the closer you can stay to 220-230 the better. Setrab Series 6-34R or Series 1-72R are the way to go. If you drive very hard you can still potentially hit 260+ on very hot days, but typically towards the end of the session.

alot of us have used a cooler with good results. mines a z1 34. Normal driving temps in the summer are around 180 highway and around 210 in bumper to bumper.

On the track last z nationals i didnt go above 210 with the new cooler and 220 when I stayed in 3rd gear for the entire track.

ok, i just bought the setrab 34 row cooler and hopefully will have it installed by next week. the setup with the elbow fitting in the picture extends downward too much, so i may have to buy another set of male elbows to work with my current straight socketless fittings (which doesnt extend down so much). and i'll need to fabricate some new brackets.

my tru-cool will be up for sale if anyone's interested. may not be the best for tracking during hot weather, but on the street or cooler weather tracking or auto-x (in any weather), it's perfect - and way cheaper.

crap, i just realized they gave me the wrong cooler. this is a 25 row cooler, NOT a 34 row, like i asked for! i'll go back and get the right one next tuesday....

is there anyone with the 25 row cooler and NOT having any problems on track in hot weather? i wanted to get the 34 row, but after doing a lot of reading, i'm beginning to think the 25 may be ok. stillen calls their 25 row setrab their "race" cooler.

just comparing sizes, the 25 row is about the same as my tru-cool as far as the front surface area, but a bit thicker (and it's got cooling fins and just generally a much better design). so maybe just upgrading to the setrab 25 row will be enough to cure my overheating problems? or should i just go with the 34 row and plan on using some kind of block-off plate for street driving?

also the only difference b/t 25 and 34 row is that the 34 row is just taller (same width), but this wont help that much b/c that additional height is covered by the bumper support.

i cant decide......

I don't have any problems as an amateur in a cooler climate with my 25 row cooler. I managed to boil my PS and clutch fluid last time I was at the track but I don't think the oil went over 240 in a 20 minute session.

If the price difference is small, I would go with the 34R as I get near 260F at the end of each session. And I live in the northeast and you are down near southwest. You would need a block off plate though as I can barely hit 180F if the temperature is anywhere below 65F

I have the 24 row with 10 size lines. It isn't all that hot here, but it was in the 70's last time out. No problems at all.

25 row setrab series 6 from Z1 with AN -10 lines and thermostatic plate. In daily driving the temp stays pegged at 175, only creeping to ~210 in bad traffic.

The top of the 25 row is already behind the crash beam and extra rows above that (on a taller 34r) will have even less direct airflow.

Last weekend at Nashville superspeedway the highest temp I saw was 240 at the end of the last 25 min session in 91 degree weather.

ok, so it looks like they have 2 sizes for the 25 row coolers. i ended up getting the 925 series 25 row cooler which is about 20% bigger than the 6 series. compared to the 34 row, it's only 9% smaller, but is more desirable i think, b/c it's longer (side to side), but not as tall as the 34r. the 34 row is shorter from side to side than the 9 series 25 row, but a lot taller (the top 40% will be covered by the bumper beam anyway). i'll install it tonight and test it out at next month's track event and report on how it does.

i wish they would just reference these by size instead of rows. it'll be a lot less confusing. i dont care how many rows - when it comes to trying to predict cooling ability, size is what we need to compare.

btw, i'm selling my tru-cool 8x11 cooler with 90 degree elbows, and an10 fittings. all you need to complete is hose, sandwhich plate and fittings from sandwhich plate to hose. pm me if interested. it'll be perfect for those who dont track or track in non-summer weather, and will not "over-cool" your oil.