OK guys, here's the issue... or should I say issues.
1. HEAT- I know it's not new but here's the deal. I just installed a DeWitts radiator with oil cooler and did the BigBollas intercooler mod. Runs hotter now!!! And on top of that the a/c only blows cold when I am doing 40mph or more. Average temps after thirty minutes of normal driving is 235 or slightly higher. After an hour or so of stop and go (just running erands) and then coming home I have seen temps as high as 248 .
2. Voltage- My car is an 07 and apparently the alternator only starts charging at or above 2200 rpm?? Anyway, the problem is that if I do a lot of driving and stopping, the car voltage will drop and the reduced engine power will come on. Then sometimes the car will get so low that the battery dies and car won't start. Here's the kicker, GM just replaced the alt. and I just put an optimum yellow top in the car.
Location: Brooklyn New York The DVL and the chicken sleep with the fishes....
What I do know ( and it aint alot ) - is that when i discussed doing a larger radiator with my tuner he didnt like the idea - his theory being that the larger radiator would just make a cramped space tighter .... his words , not mine , I dont know the dimentions of the Dewitts ..
As per the A/C - could be a voltage issue , but it sounds like the problem I was having with mine after putting the Procharger in - Turns out mine was overpressurized and draining some refrigerant worked out well . The A/C worked fine before the procharger - mine novice theory is the added heat created the pressure problem ....
Good luck Bro , its too damned hot not to have A/C .....
>>>>>> But then I saw the picture of your girlfriend in General .... I dont feel bad for you anymore , not one bit ...
Sweat it out !!!
Thanks man. Your theory is the same as mine and I am having the stock radiator put back in this week so we will see. As per the a/c, i also mentioned that to my shop.
OK guys, here's the issue... or should I say issues.
1. HEAT- I know it's not new but here's the deal. I just installed a DeWitts radiator with oil cooler and did the BigBollas intercooler mod. Runs hotter now!!! And on top of that the a/c only blows cold when I am doing 40mph or more. Average temps after thirty minutes of normal driving is 235 or slightly higher. After an hour or so of stop and go (just running erands) and then coming home I have seen temps as high as 248 .
2. Voltage- My car is an 07 and apparently the alternator only starts charging at or above 2200 rpm?? Anyway, the problem is that if I do a lot of driving and stopping, the car voltage will drop and the reduced engine power will come on. Then sometimes the car will get so low that the battery dies and car won't start. Here's the kicker, GM just replaced the alt. and I just put an optimum yellow top in the car.
HELP!!!!!!!!!!
Heat is the problem with these kits. Someone needs to engineer a better way of getting more airflow to the radiator. I am suprised your coolant temps are that high with the bigger radiator, however. What about going 100% gaseous intercooling?
OK guys, here's the issue... or should I say issues.
1. HEAT- I know it's not new but here's the deal. I just installed a DeWitts radiator with oil cooler and did the BigBollas intercooler mod. Runs hotter now!!! And on top of that the a/c only blows cold when I am doing 40mph or more. Average temps after thirty minutes of normal driving is 235 or slightly higher. After an hour or so of stop and go (just running erands) and then coming home I have seen temps as high as 248 .
2. Voltage- My car is an 07 and apparently the alternator only starts charging at or above 2200 rpm?? Anyway, the problem is that if I do a lot of driving and stopping, the car voltage will drop and the reduced engine power will come on. Then sometimes the car will get so low that the battery dies and car won't start. Here's the kicker, GM just replaced the alt. and I just put an optimum yellow top in the car.
HELP!!!!!!!!!!
Your A/C problem is 99% due to your overheating problem.
I also have the Dewitt's radiator and it works much better that the stock one.
It's 95* here in Chicago at the moment and my car is running at 199*F
Something is definitely not right with your cooling system. Especially with you using a Dewitt's Higher capacity Alum Radiator. It's hard to diagnose without having the car in front of me. I can only take pot shots.
1. Make sure your cooling fan is coming on. I have mine set to 99% duty above 192* via HP Tuners .
2. There must be a descent gap between the inter-cooler and the radiator
3. Check Coolant level/antifreeze %
My guess is that you are not getting enough air flow through to your radiator. The hot condenser in front of it doesn't help any either.
Here is a pic I took of my car when I was putting in my S/C system a while back . Look at the gaps I adjusted for:
How is your fan programed? Is it the stock settings?? I know that mine is on all the time regardless of temp--and is set up to run at certain % levels at certain temps, ie I think at about 160 my fan starts to run at 100%. That would be a place to start, but you've probably already been down that road.
Your a/c compressor is shutting down becuase of the heat, no doubt about it. Bleed off a pound or 2 of the freon and it should be fine- I had to do the same thing. But, at those temps might not matter how much you bleed out. When you resolve your heat issue, the a/c will follow.
FWIW, I've got a D1 with a 3200 stall and live in Houston where it reaches 95-100 all the time. I never see over 215-220 on my coolant temps or my A4 tranny temps.....in bumper to bumper traffic. I usually see 190 with normal drivig conditions- with hot or cold weather.
On my C5, with a Dewitts, I was seeing 245 degree oil, 225 degree coolant and 237 degree tranny temps. These systems need to provide a cooler as standard equipment, not require self-modifications with no clear answer to the problem. I now have a rear mounted tranny cooler, the only location to fit it and we'll see what happens. Plus I doubt that this problem is limited to Prochargers only but rather inherrent with all blowers.
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Quote:
Originally Posted by Pewtavert
On my C5, with a Dewitts, I was seeing 245 degree oil, 225 degree coolant and 237 degree tranny temps. These systems need to provide a cooler as standard equipment, not require self-modifications with no clear answer to the problem. I now have a rear mounted tranny cooler, the only location to fit it and we'll see what happens. Plus I doubt that this problem is limited to Prochargers only but rather inherrent with all blowers.
I'm sorry to hear about your trouble Stewart, but I can assure you it is not inherrant to all blowers, or blower kits. It can be taken care of like some have posted already.
I'm sorry to hear about your trouble Stewart, but I can assure you it is not inherrant to all blowers, or blower kits. It can be taken care of like some have posted already.
Thanks I think that The Vette Doctors have figured it all out, it has to do with alot of things that I have going on under my hood and its pretty obvious that your product is the only good one out there. Also please don't call me Stewart
well i would guess you got air in your system. also do the bollas mods. i have a a lpe hood but stock rad and i NEVER see over 210 coolant or oil. normanly right at 200. i am sure the opening in the hood help me alot but not 50 degrees worth. your bigger radiator isn't the problem that i can tell you. i wouldn't pull it. star the car and let it run with cap off until heater blows hot in car(therm opens) then fill it up and while it runs a few min more. then it full. you may want to get water wetter of royal purples version of the same thing. this seems to help a lil. also if you got to much anifreeze in the water mix you will have cooling issues. good luck and enjoy the new found power
I am in the same boat with my procharger. My oil temps were in the 240's just cruising around in 85+ degree weather and my a/c shuts off after 30 mins or so.
I just had my tuner move some things around by the intercooler and tilted the intercooler back so now there is a gap between the radiator and intercooler.Before they did this i had so much crap stuck bet the intercooler and radiator, styrofoam, plastic, cigarette butt's and i think I sucked up sneaker, and a dead rat too j/k. Its been extremely humid in NYC so its hard to tell yet if this fixed the problem as I just had this done last night.
I don't know how some of you guys run under 200 degree oil temp. Only time will tell will keep you guys posted.
Thanks guys. Lots of good ideas. I will be making some changes this coming week so I will let you guys know how things go. My main thing is going to be to do the other BBIC mods and to make sure there is no debris in the cooling system. The car has blown head gaskets before so there may be some gunk left over.
I wonder why some run so much hotter than others, mines never been over 205 even at 100 degrees air temp, running at high rpm for long peroids of time. Why is this?
You have to have an air gap between the radiator and the intercooler, and you want to have the radiator fans coming on sooner. You also want to make sure the fans are blowing the right direction. I have seen the fans wired incorrectly which will cause the cars to run hot. Bob
Corvette Store
Need help from ALL ProCharger guys!!!
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