Fluidyne radiator question - Page 3 - ZR-1 Net Registry Forums

GOLDCYLON · 07-23-2014

Quote:

Originally Posted by secondchance

Since going to 380, I can tell the cooling system is not up to par. So, I think, a good radiator (I'm thinking Dewitt since I know they are two row and I can't confirm the same for the Fluidyne) topped off with a pair of Spal fans are in order.

Thanks all!

Yep said the first 380 build member

GOLDCYLON · 07-23-2014

Extra rows buy you extra time. due to extra capacity. I chased this problem down with my 67 camaro. Damn car always overheated with AC on.

End solution was 4 row radiator with a flex fan. Problems solved.

Factory radiator was a one row. WTF?

Replaced with a 2 row. Same problem

Replaced with a 2 Row and a 5 blade OEM fan GM solution was a 4 bladed fan. Same problem. WTF?

Replaced with a 3 row was more acceptable until the water pump shaft broke throwing fan into raditor. Serriously WTF

Had custom 4 Row built and added a balanced multiblade flex fan. Seriously the front end of the 67 camaro had a crap load of room for a bigger radiator!!!!

Never had a cooling problem again. Sometimes you have to out enginner the engineer.

How does this translate to ZR-1s ? easy. The principals the same... increase the rows or core capacity and increase the fans cfms. Solves cooling issues on modded and non modded ZR-1s.

chriskinzel · 07-23-2014

Dumb question here. Are these Spal fans added in front to push more are through, or replacing factory fans behind radiator as sucking more air through?

Chris

GOLDCYLON · 07-23-2014

Quote:

Originally Posted by chriskinzel

Dumb question here. Are these Spal fans added in front to push more are through, or replacing factory fans behind radiator as sucking more air through?

Chris

Behind.. They replace the original fans and fan support stucture. As stated in the youtube video. Its certainly sucking lol

http://www.dewitts.com/collections/s...dual-fans-only

specs

Height(IN): 16.26

Depth(IN): 4.25

Width(IN): 23.46

Airflow(CFM): 2780

PhillipsLT5 · 07-23-2014

Quote:

Originally Posted by secondchance

I see Fluidyne FHP11-96cor for sale when googled. Also, on Ebay.

Good to know, happy with mine

PhillipsLT5 · 07-23-2014

Quote:

Originally Posted by GOLDCYLON

Extra rows buy you extra time. due to extra capacity. I chased this problem down with my 67 camaro. Damn car always overheated with AC on.

End solution was 4 row radiator with a flex fan. Problems solved.

Factory radiator was a one row. WTF?

Replaced with a 2 row. Same problem

Replaced with a 2 Row and a 5 blade OEM fan GM solution was a 4 bladed fan. Same problem. WTF?

Replaced with a 3 row was more acceptable until the water pump shaft broke throwing fan into raditor. Serriously WTF

Had custom 4 Row built and added a balanced multiblade flex fan. Seriously the front end of the 67 camaro had a crap load of room for a bigger radiator!!!!

Never had a cooling problem again. Sometimes you have to out enginner the engineer.

How does this translate to ZR-1s ? easy. The principals the same... increase the rows or core capacity and increase the fans cfms. Solves cooling issues on modded and non modded ZR-1s.

Radiator hell

GOLDCYLON · 07-23-2014

Quote:

Originally Posted by Dynomite

Are the spal fans a direct fit?
If not.......what is the fitting?

Can one remove existing fans and drop in these spal fans?

Are the electrical connections plug and play or modified?

What is the source and model number for these spal fans?

NO they come as a unit as pictured you actually gain more room in the front of the motor by doing this mod

Plug and play

No idea and I doubt Dewitt's product number will be the same and these are an improvement over Dewitt's earlier models which was a generic bracing system that you had to adapt to fit the radiator with no directions. Those were the fans I returned in 2008

GOLDCYLON · 07-23-2014

Quote:

Originally Posted by PhillipsLT5

Radiator hell

Yep I wasn't in a good place for a long while

5ABI VT · 07-24-2014

Read a lot about radiators over the years. in my 93 ltx car.. Mezziere HD waterpump. stock original rad. no problems whatsoever keeping the car under 205/210. 1100 idle. Don't want to open a new can of worms here but I believe the flow of a stock pump at idle is just too slow through the system and many people blame a radiator.

A26B · 07-24-2014

Quote:

Originally Posted by 5ABI VT

Read a lot about radiators over the years. in my 93 ltx car.. Mezziere HD waterpump. stock original rad. no problems whatsoever keeping the car under 205/210. 1100 idle. Don't want to open a new can of worms here but I believe the flow of a stock pump at idle is just too slow through the system and many people blame a radiator.

Do you think maybe July temps in Toronto Lo58 to Hi78F, hottest month of the year might have something to do with that? Especially compared to Phoenix, AZ.

It could be low water flow at idle, but the LT5 is well known for its high flow water pump, hence the coolant bypass valve.

For optimum performance, coolant flow has to be balanced with (1)flow rate capacity, (2)thermal exchange capacity of the radiator, i.e. coolant flow capacity, (3) surface area, (4)exchange media (air flow) volume AND (5) ambient air temperature.

Since we don't live in a steady-state climate, the components have to cover a variable range of conditions.

Looks like Dynomite was typing at the same time and we share some of the same sentiments.

07-23-2014	#22
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,154	Re: Fluidyne radiator question Extra rows buy you extra time. due to extra capacity. I chased this problem down with my 67 camaro. Damn car always overheated with AC on. End solution was 4 row radiator with a flex fan. Problems solved. Factory radiator was a one row. WTF? Replaced with a 2 row. Same problem Replaced with a 2 Row and a 5 blade OEM fan GM solution was a 4 bladed fan. Same problem. WTF? Replaced with a 3 row was more acceptable until the water pump shaft broke throwing fan into raditor. Serriously WTF Had custom 4 Row built and added a balanced multiblade flex fan. Seriously the front end of the 67 camaro had a crap load of room for a bigger radiator!!!! Never had a cooling problem again. Sometimes you have to out enginner the engineer. How does this translate to ZR-1s ? easy. The principals the same... increase the rows or core capacity and increase the fans cfms. Solves cooling issues on modded and non modded ZR-1s. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V Last edited by GOLDCYLON; 07-23-2014 at 11:42 AM.

07-23-2014	#23
chriskinzel Join Date: Nov 2011 Location: Salt Lake City, Utah Posts: 169	Re: Fluidyne radiator question Dumb question here. Are these Spal fans added in front to push more are through, or replacing factory fans behind radiator as sucking more air through? Chris __________________ 91 ZR-1 Red on Red #922

07-24-2014	#29
5ABI VT Join Date: Jun 2013 Location: Toronto Posts: 782	Re: Fluidyne radiator question Read a lot about radiators over the years. in my 93 ltx car.. Mezziere HD waterpump. stock original rad. no problems whatsoever keeping the car under 205/210. 1100 idle. Don't want to open a new can of worms here but I believe the flow of a stock pump at idle is just too slow through the system and many people blame a radiator.