LT1-LT4 Modifications 1993-97 Gen II Small Block V8

whats up with this?

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Old May 12, 2008 | 11:24 PM
  #1  
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Default whats up with this?

car:95 lt1 6speed
problem:car has 160 t-stat and ewp and runs hot around town past 210 only around town, took the car on 20 mile highway jog at 70mph and it runs between 160 and 190. I just changed to ewp and brand new opti w/160 t-stat. Whats going on here? My car is 13years old; are the stock dual cat(yes dual cats w/OBD 1 computer) clogged or is the problem cooling only?

some one with personnel experience please comment

the ewp is a summit electric pump that was on sale and brand spankin new
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Old May 12, 2008 | 11:32 PM
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210 is FINE when idling.. Its when it gets much higher like 230+ is when u worry a bit.

I have heard EWPs will keep the idling temps down, so I'm not sure about that,.
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Old May 13, 2008 | 01:35 AM
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CSR ewp here with a 160* failsafe and mine never gets above 180*, even ideling around town in 90* heat. I'm also running about 11.5 compression too on a .30 overbore. Your car shouln't be running that hot IMHO
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Old May 13, 2008 | 02:05 AM
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How's the rad in the car? I replaced mine two years ago, and noticed about a 15 - 20 degree temp drop in town.

Highway driving is always cooler, as there is much more cold air flowing over the rad.
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Old May 13, 2008 | 07:14 AM
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If you haven't changed the fan temps, then it sounds normal - nothing to worry about.
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Old May 13, 2008 | 07:27 AM
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^^ x2 also would not having the front air damn make you car run a little warmer as well?
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Old May 13, 2008 | 08:41 AM
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Originally Posted by Bad_tx_Z28
^^ x2 also would not having the front air damn make you car run a little warmer as well?
OH YES! The airdam is probably the single most effective piece for cooling on these cars

When I bought my car, some idiot had taken the air dam off before. The car ran so hot, even on the highway ~210 in mid summer sometimes. Bought one on ebay for like $10. Temps have been perfect since pretty much. I stay right around 180 cruising.
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Old May 13, 2008 | 09:04 AM
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I got a 160, EWP and mine never hits more then 180-190
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Old May 13, 2008 | 09:23 AM
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As Snackeoiler said, it's normal operation stock fans don't cut on till around 235* so the 160 t-stat only works when running cool air through the air dam to rad at higher speed. You need programming or a fan switch to take advantage of the lower t-stat in traffic. Putting on the air conditioner will force low speed fans to run and cool it down a little.
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Old May 13, 2008 | 09:57 AM
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Originally Posted by Turnin20s
CSR ewp here with a 160* failsafe and mine never gets above 180*, even ideling around town in 90* heat. I'm also running about 11.5 compression too on a .30 overbore. Your car shouln't be running that hot IMHO
How do you have your ewp wired? With a relay? or what? if a relay how did you wire it to turn off and on?
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Old May 13, 2008 | 10:02 AM
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Need to get your computer tuned for the fans if you haven't already done so. I run Meziere and a 160 with stock radiator and it stays @170 and may get up to 185 here in Texas on a hot summer day. Never over 200.
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Old May 13, 2008 | 10:17 AM
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get you fans tuned for a 160 and you will be good
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Old May 14, 2008 | 07:18 AM
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i also have a 160* and my fans are tuned, but my car still runs about 200-205 cruising in town...highway maybe 195. I guess i do need to get a air dam...i feel stupid
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