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Well it's not hot here yet, only mid 80s so I've only seen 207* with the AC on, but I haven't idled it in traffic yet.. No doubt it will go 230*+ when its 95* and idling in traffic...
Well it's not hot here yet, only mid 80s so I've only seen 207* with the AC on, but I haven't idled it in traffic yet.. No doubt it will go 230*+ when its 95* and idling in traffic...
I'm sure that humid gulf air hits it hard. Have you tried running e85?
Not yet... It's a possibility though. I'm concerned about the dismal fuel range on E85. I barely get 150 miles to a tank now as it is..
I'm not sure how much e85 really helps ECTs anyway... Some say yay, some say nay.
It helps for sure. I see nothing less than a 20 degree drop and my coolant temps stay stable even with AC on. I'm still running a completely stock coolant system except TStat.
It helps for sure. I see nothing less than a 20 degree drop and my coolant temps stay stable even with AC on. I'm still running a completely stock coolant system except TStat.
20* drop JUST from going to E85?
What kind of temps do you see when idling with the AC on, when its 95* outside?
$hit if I could get a 20* drop I'd switch to E in a heart beat...
Several locals here have mentioned they detected no noticeable drop in temps at idle on E85...mainly since its an airflow problem..
Would you really need to do anything fuel system wise just to try E85? Seems like what you have could handle it fine outside of boost.. making it easy to try. Or maybe I'm forgetting something obvious.
Would you really need to do anything fuel system wise just to try E85? Seems like what you have could handle it fine outside of boost.. making it easy to try. Or maybe I'm forgetting something obvious.
Yeah... I could probably put some E85 in it and retune it with my current fuel system, just for part throttle only... I have FIC 1000s so it could atleast drive... Maybe something to try...
I think cutting the front frame cross bar and putting the intercooler in the nose would likely help as well.
If it's in closed loop just changing the stoich value should be plenty to see how it does just driving around. Just thinking out loud. Seems worth a shot before chopping the front frame bar up
If it's in closed loop just changing the stoich value should be plenty to see how it does just driving around. Just thinking out loud. Seems worth a shot before chopping the front frame bar up
Its open loop tuned now, but I could go back to closed loop and change stoich just for the test..
This thing hates being anywhere near 14.7-15.0 afr.....The surging I've chased for 3 years in closed loop, had nothing to do with closed loop, more so to do with the 14.7 afr in CL.... It just doesn't like being that lean.. 13.8-14.0 afr, it runs 10X better, EVERYWHERE....
But yes, I get your point.... Maybe something to try. My fuel hose from the tank to the fuel log up front is not E85 hose, nor is my 225LPE pump and bosch 044 pumps E85 compatible...But maybe a short time won't hurt them..?
I wish we could do flex fuel.....I really don't want to deal with hunting E85 gas stations all the time.
I read something about swapping one of the truck/SUV ECM's into a C5 to add flex fuel but didn't do a lot of looking into it since I don't have a C5 anymore. I think it's doable though.
Ah well, just an idea. Hopefully that (or something else you find) helps this year
Well I'll chime in again since I'm back up and running and today was our first warm 84 and muggy as hell day. I have the Dewitt's cut down, stood straight up, $250 Jegs dual fan and shroud set up. Fan activation- Both on at 175. First two days of driving were in the 60's and I had no upper shroud. Highest I saw was 180 idling for a while. Cruising it would get down to 170-171. Granted that's no a/c or intercooler (still waiting on parts before its boosted again). Today mid 80's, horrid humidity. I added a top shroud. Temps - 174. Highest I saw was 180. That's even having to hold the idle at 1K as I still haven't tuned it. Tomorrow I'm charging the a/c and will report back as it's supposed to be mid to upper 80's and humid again.
Here's the current set up. This also with a gallon and half of cheap O'rielly's Dexcool and the rest water. I will also be adding foam to the bottom of the shroud where it contacts the radiator and condenser for better sealing.
It was 84* here yesterday, I drove my car for 3 hours, AC on the whole time... Mixed driving of highway, in town, idling at stop lights.. Hottest it got was 207* at idle, I know it's false hope tho.. When ambient temps jump up another 10* to 95*ish, my coolant temps will jump 15-20* minimum.
My car will run 180-185* all day at cruise with the AC on, on a 84* day.. On a 95* day, it's a whole different ball game.
If you're not using the AC and idling in traffic, comparing engine run temps is apples and oranges.
Oh I know, but it used to see high 180's before. The real test will come in July and August when it's 100* at 11pm haha.
I know with the ac on full tilt it's a whole different world(I fought it constantly in 2013-2014. I'm just working now to get a jump and see how well
I can keep it down. I'm also considering going air to water for the new blower set up, I could mount the i/c in the front fender area or even right up against the front frame rail so it's not obstructing the condenser or radiator.
What kind of temps do you see when idling with the AC on, when its 95* outside?
$hit if I could get a 20* drop I'd switch to E in a heart beat...
Several locals here have mentioned they detected no noticeable drop in temps at idle on E85...mainly since its an airflow problem..
Idle runs about normal in the 190's, low 200's with AC on. It takes a bit longer to warm up even on a hot day. The absolute hottest I've gotten it up to on E last summer was around 217 IIRC. At that point I stopped looking into cooling mods.
If it's in closed loop just changing the stoich value should be plenty to see how it does just driving around. Just thinking out loud. Seems worth a shot before chopping the front frame bar up
This is what I did. Measured with baby bottle method and adjust stoich value accordingly.
Turbo charged zr1 stock 6.2 with a small cam 91mm turbo mounted between radiator and engine..
Didn't have a lot of space, no way in hell I could run a stock sized or stock angle on a radiator..
I stared off with a tiny little core
Dimensions were something like 12x22
It seems to work just fine. It stays 190ish with the fan in stop and go, drops a little bit with the fan on. Single cheap eBay fan mounted on a shroud that doesn't fit the fan or radiator correctly..
After reading all this I have to stay I was extremely worried and planned on spending a good chunk of change on a custom setup, but ran into these hand me down parts and they seem to work just fine.
04-15-2016, 08:54 AM
