LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

CAr runs kinda hot with a CSI

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Old Mar 27, 2004 | 03:37 PM
  #1  
xxsaint69x's Avatar
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CAr runs kinda hot with a CSI

Scanmaster readings around 200- 210. Seems the faster i go the hoter it gets. Any ideas? All the air is out of the system as far as i am concerned.
Thanks
Marcin
Old Mar 27, 2004 | 04:22 PM
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What percentage did you go with as far as water and coolant,Maybe you just need to add more water to it.
Old Mar 27, 2004 | 04:24 PM
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You have bled the system correctly and confirmed that the pump actually runs, correct?

And your coolant/water ratio is...?
Old Mar 27, 2004 | 04:27 PM
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have 1 gallon of straight up coolant in there, and rest water.
So i dont know

Also, yeah the pump runs great. Everything is fine, but the temp wont go down no matter what. I bled the system muliple times. No air.
Old Mar 27, 2004 | 04:31 PM
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Just one gallon? Maybe you should add another...don't know if that will help out any more though.

Do you still have your airdam, and is anything blocking the front of your radiator?
Old Mar 27, 2004 | 04:34 PM
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nope, nothing is blocking the radiator, everything is stock.

Btw 1 gallon of coolant and lots of water. Its not like i only have a gallon of fluid in there Car is full.
Old Mar 27, 2004 | 04:40 PM
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What temp thermostat do you have?Make sure the fans are kicking on to cool the car.Who programmed the car computer?
Old Mar 27, 2004 | 05:46 PM
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i did....Fans come on at 194. I have a stock thermostat.
MArcin
Old Mar 27, 2004 | 06:27 PM
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Heat

In my experience w/ the cars in my sig, heat can be tough to get rid of... especially in the South. The RX7 could never get enough air OUT of the engine bay and would overheat at idle (Griffin radiator, 180 Tsat, hi flow water pump, fans first behind radiator, then in front of radiator, and finally on both sides of radiator).

The Bonneville came from Iowa and apparently Pontiac used two sizes (thickness) of radiator for these cars. Mine is the thin (like 7/8" thick) one. I tried to buy a thick one, but never could find one, so I ended up running a new oil cooler (the OEM setup had both oil & tranny coolers in the radiator tanks) along with a larger tranny cooler, replacing the 16" fan with a Perma-Cool unit, adding pusher fans to the front of the radiator, and re-wiring both fans to come on @ 185-190 OR when the AC is used vs. the 220 stock setup. On the Bonneville, the big fan is the main cooling fan, and the smaller one is the AC fan. Both would only run together if the AC was on & the water temp was around 220. I don't know if the TA uses a similar setup, but suspect it does.

If you are overheating while driving, this sounds like a circulation (pump) problem. The key question is did it do this before the CSI pump was added?
Old Mar 27, 2004 | 06:28 PM
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Re: Heat

Originally posted by Live for TAs
In my experience w/ the cars in my sig, heat can be tough to get rid of... especially in the South. The RX7 could never get enough air OUT of the engine bay and would overheat at idle (Griffin radiator, 180 Tsat, hi flow water pump, fans first behind radiator, then in front of radiator, and finally on both sides of radiator).

The Bonneville came from Iowa and apparently Pontiac used two sizes (thickness) of radiator for these cars. Mine is the thin (like 7/8" thick) one. I tried to buy a thick one, but never could find one, so I ended up running a new oil cooler (the OEM setup had both oil & tranny coolers in the radiator tanks) along with a larger tranny cooler, replacing the 16" fan with a Perma-Cool unit, adding pusher fans to the front of the radiator, and re-wiring both fans to come on @ 185-190 OR when the AC is used vs. the 220 stock setup. On the Bonneville, the big fan is the main cooling fan, and the smaller one is the AC fan. Both would only run together if the AC was on & the water temp was around 220. I don't know if the TA uses a similar setup, but suspect it does.

If you are overheating while driving, this sounds like a circulation (pump) problem. The key question is did it do this before the CSI pump was added?

The car is NOT overheating..its just runing at 200-210 vs usual 190
Old Mar 27, 2004 | 06:43 PM
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My thought is that there is still a little air in the system.Try parking with your front end pointed up a hill and open the bleeders.The only other thing I can think of is the pump is rubbing the housing.
Old Mar 27, 2004 | 07:08 PM
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hmm...ill try to bleed it some more i guess
Old Mar 27, 2004 | 07:22 PM
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hmm.. mine runs 160-190 with my csi and I live in florida.try taking a little more of the anti freeze out and adding more water im running half a gallon of anti freeze with the rest water, I also added a little bit of redline water wetter to mine.
Old Mar 27, 2004 | 08:12 PM
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how long and what size wire did you use for the electrical loop for the waterpump... if theres alot of resistance it wont spin as fast... 12 or 10 gauge should be used,
Old Mar 27, 2004 | 08:28 PM
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If your just breaking in your engine then there could be excess heat from the break in. I know you have a 355 but i guess i don't know if your just now getting it running or have been for a while.



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