Fluidyne Radiator Install

[Bahndvr]

Installed the Fluidyne radiator today. Watched Youtube video to show me how. It's pretty straight forward. Messaged the upper hose to "pump" the system with fluid. The only real problem was the brackets holding in the radiator. Had to drill holes to make it work.

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[turbofiveoh]

What was the impact to your CHTs?
Is there sufficient clearance between the degas bottle and the blower belt?

 

[Bahndvr]

What was the impact to your CHTs?
Is there sufficient clearance between the degas bottle and the blower belt?

Oddly the CHT pretty much the same. The ECT are 10 or more degrees cooler.
Plenty of clearance between bottle and belts.

 

[80FoxCoupe]

Oddly the CHT pretty much the same. The ECT are 10 or more degrees cooler.
Plenty of clearance between bottle and belts.

Why is the CHT being the same odd?

 

[Andrew@Lethal]

Installed the Fluidyne radiator today. Watched Youtube video to show me how. It's pretty straight forward. Messaged the upper hose to "pump" the system with fluid. The only real problem was the brackets holding in the radiator. Had to drill holes to make it work.

Awesome work brotha! Enjoy the lower coolant temps!

 

[Bahndvr]

Why is the CHT being the same odd?

I thought it would have displayed cooler but I'm to understand that the CHT is a regurgitated number.

 

[turbofiveoh]

Oddly the CHT pretty much the same. The ECT are 10 or more degrees cooler.
Plenty of clearance between bottle and belts.

Thanks for the quick feedback.

I have been working under the impression that the CHT is based on actual sensor data and ECT is a calculated number based on various sensor inputs. In fact, with my own car, I am experiencing the opposite of what you are experiencing. There can be 50 degree swings in the CHT based on continuous load without analogous movement in the ECT needle. In fact, the ECT needle tends to stay in the same spot (approximately 1/3 of the total sweep) once the engine in warmed up regardless of CHT. Under light cruise the CHTs are usually 165-175F. After 10 minutes on track the CHTs start climbing and I slow down when they pass 230. During this entire event the ECT needle never moves.

Good to know on the belts. I ordered the DeWitts dual 1.25" core which I expect will be over 3" in total depth and a friend pointed out that there may be contact between the degas bottle and the supercharger belt.

 

[80FoxCoupe]

I thought it would have displayed cooler but I'm to understand that the CHT is a regurgitated number.

CHT is read directly from the temp sensor on the back of the pass side head. Thermostat dictates the operational engine temp, unless a deficiency exists; excessive heat production, insufficient airflow across rad, insufficient heat rejection etc.

Basically unless you had a scenario where the radiator could not reject enough heat to reduce the heat load, a larger rad doesn't do squat.

 

[Jackson1320]

CHT is read directly from the temp sensor on the back of the pass side head. Thermostat dictates the operational engine temp, unless a deficiency exists; excessive heat production, insufficient airflow across rad, insufficient heat rejection etc.

Basically unless you had a scenario where the radiator could not reject enough heat to reduce the heat load, a larger rad doesn't do squat.

I don’t know what radiator op’s car came with but the none performance pack radiator is a lot smaller than the PP. you can easily over come the capabilities of that radiator with supercharger kit

 

[Jackson1320]

Thanks for the quick feedback.

I have been working under the impression that the CHT is based on actual sensor data and ECT is a calculated number based on various sensor inputs. In fact, with my own car, I am experiencing the opposite of what you are experiencing. There can be 50 degree swings in the CHT based on continuous load without analogous movement in the ECT needle. In fact, the ECT needle tends to stay in the same spot (approximately 1/3 of the total sweep) once the engine in warmed up regardless of CHT. Under light cruise the CHTs are usually 165-175F. After 10 minutes on track the CHTs start climbing and I slow down when they pass 230. During this entire event the ECT needle never moves.

Good to know on the belts. I ordered the DeWitts dual 1.25" core which I expect will be over 3" in total depth and a friend pointed out that there may be contact between the degas bottle and the supercharger belt.

Have you tried burping it

 

[80FoxCoupe]

I don’t know what radiator op’s car came with but the none performance pack radiator is a lot smaller than the PP. you can easily over come the capabilities of that radiator with supercharger kit

I run the standard gt radiator, intercooler up front, 1200whp without issue. But im usually just normal street driving and drag racing. I suppose even in stock config, the base radiator would come up short in high ambient temps and a road race applications.

 

[turbofiveoh]

Have you tried burping it

Multiple times. The only time the CHTs gets hot is on the road course at sustained high RPM. Like the OP, I have a PD supercharger. Most people with PD FI are battling high CHTs when on track.

 

[Jackson1320]

Multiple times. The only time the CHTs gets hot is on the road course at sustained high RPM. Like the OP, I have a PD supercharger. Most people with PD FI are battling high CHTs when on track.

Remove your thermostat when you go to the track. If you don’t have a head cooling mode then your seven and eight cylinder are probably 10-20* hotter than what your temperature is reading

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