Help with Heating up

[BoOsT-CrAzY]

Hey guys i am new here and need some help if possible please i have an 86 with a big front mount and i cant keep it running cool it run about 200 - 210 on the freeway please help

 

[vacuum 6]

Always have this issue?

 

[vacuum 6]

If not...Is your low fan speed coming on or just the high speed? Depends on the chip but the ECM turns the low speed fan on about 170°. It just might be a bad relay.

 

[BoOsT-CrAzY]

shortly after i bought the car it over heated and i dunno how much cause the previous owner didn't have any gauges and he installed a dump tube directly above the lower rad hose, it has a brand new rad. in it i am not sure chip i guess i will start it and see when it comes on but at idle it can sit there for ever at 165

 

[vacuum 6]

Verify the low fan is coming on and post back. Got a scan tool?

 

[BoOsT-CrAzY]

the low fan comes on at 160-170 but stock fan no no scan tool i need a scanmaster

 

[vacuum 6]

A lot of guys swear by the f-body rad. Its a cheap fix, check it out.

 

[BoOsT-CrAzY]

the one i put in is a larger 3 row

 

[vacuum 6]

My car runs hot too but since my ride's engine is not stock I'm having a custom rad done for me.

 

[BoOsT-CrAzY]

i have motorn 60's 60-1, 3" kb 70mm throttle and plenum ls1 maf turbo tweak chip underdrive pullys

 

[vacuum 6]

IMO - 3 row will not work for two reasons.

1st - the back row of tubes do not get the proper air flow across it them

2nd – gaps between the rows create turbulence thus more rows more turbulence

The incoming air must flow straight thru the rad and able to go thru the entire rad.

Sorry, this is not just my opinion this is the opinion of a rad shop I worked at.

 

[BoOsT-CrAzY]

hmmm it seems to flow pretty good just by looking

 

[vacuum 6]

Under drive pulleys may screw things up, I have zero experience with them.

 

[vacuum 6]

Just by looking will tell you nothing.

 

[BoOsT-CrAzY]

yeah i know i let it sit here in my shop nose inside for 25 mins and never went over 165

 

[vacuum 6]

No load on the motor.

 

[BlackMetal]

If that list of mods is the only things you have done to your car then it sounds like you don't need a "huge front mount" in the first place. Don't slap on a front mount intercooler if you expect to be cruising around town with the temp at 170.

Either go back to a stock location intercooler or you'll have to consider buying a different radiator, dual fans, etc. One cheap "fix" is to hotwire the stock fan so it runs on high speed instead of low. But that's not really a solution to the problem.

Doesn't matter if the radiator "looks" like it flows good, your car is running 200+, obviously it's not doing a good job.

 

[vacuum 6]

Doesn't matter if the radiator "looks" like it flows good, your car is running 200+, obviously it's not doing a good job.

Perfectly said.

 

[BoOsT-CrAzY]

lol ok i see your point as for mods those are just what was on there i plan on adding quite a bit more

 

[BoOsT-CrAzY]

If that list of mods is the only things you have done to your car then it sounds like you don't need a "huge front mount" in the first place. Don't slap on a front mount intercooler if you expect to be cruising around town with the temp at 170.

Either go back to a stock location intercooler or you'll have to consider buying a different radiator, dual fans, etc. One cheap "fix" is to hotwire the stock fan so it runs on high speed instead of low. But that's not really a solution to the problem.

Doesn't matter if the radiator "looks" like it flows good, your car is running 200+, obviously it's not doing a good job.

the only thing yo have that i don't is alky and i have that coming?