Ls cooling

cbrjeeper · Jun 24, 2019

Currently do not over heat. Just looking to do some upgrades / service. I have 22x19 Griffin radiator, " it leaks" 16 AN fitted on all ends. T stat, waterpump , inlet and outlet of radiator. Spal fan "works great" Was looking to upgrade to 20AN everything for more flow as I just added a new woopow making 1000hp just on a chip..... So questions are . High flow water pumps, t stats, and radiator. What are you or your friend that's knows a guy running?

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cbrjeeper · Jun 24, 2019

Idea of how I'm set up now. I can go a lil bigger on rad . I'm not moving it to the back.

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kmcminn · Jun 24, 2019

165 Lingenfelter Thermostat

CHASMAN9 · Jun 24, 2019

cbrjeeper said:
Idea of how I'm set up now. I can go a lil bigger on rad . I'm not moving it to the back.

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Watch your loop at the bottom, you have a potential of an air bubble there. Ask me how I know...lol

ADMINISTRATOR

cbrjeeper · Jun 24, 2019

Re: Re: Ls cooling

kmcminn said:
165 Lingenfelter Thermostat

Keeping things more open? What about temp sensor? I just put a 180 hi flow in. Didn't seem to change much.

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cbrjeeper · Jun 24, 2019

Re: Re: Ls cooling

CHASMAN9 said:
Watch your loop at the bottom, you have a potential of an air bubble there. Ask me how I know...lol

ADMINISTRATOR

Agreed its always a pia getting air out. Will definitely change with the 20 AN upgrade

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wizzo · Jun 24, 2019

CBR radiators - https://www.cbr-performance.com/off-road/

Do yourself a favor and get one. If you're replacing the radiator anyway, it's a no brainer. We've seen drastic improvements over the griffins. Hit me up with any questions.

Jduck · Jun 24, 2019

wizzo said:
CBR radiators - https://www.cbr-performance.com/off-road/

Do yourself a favor and get one. If you're replacing the radiator anyway, it's a no brainer. We've seen drastic improvements over the griffins. Hit me up with any questions.

What kind of temp drops are y'all getting out of the cbr's? The griffins seem to be right around 20-25 degrees of cooling measured on the input/outputs. I've seen the posts about the fins/inch of the cbr's being a higher count and wasn't sure what that equates to in real world heat exchange efficiency.

cbrjeeper · Jun 24, 2019

I definitely want to move into something else than Griffin.

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Bebop · Jun 24, 2019

PWR rads with a new brushless fan from SPAL.

Their core design is second to none (CBR can build you a radiator with the PWR core I think) and the brushless fans are the **** (no relay, soft start and progressive speed and amp draw).

If you call PWR they will quote you what you want and they have the brushless fans available. Fair warning, they arent cheap. I was quotted about $1500 for a custom 28x19 with tappered tanks.

I would look into adding an expansion tank if you can. It solved a few issues for a friend of mine in a buggy that was tight in terms of space. Expansion tanks add a lot of volume and help degas the steam from the upper part of the heads in the LS/Vortec series (from the steam port).

cbrjeeper · Jun 24, 2019

I will ck them out for sure. Good info on the tank. I have one as well. Also have Earl's steam port set up on all 4 corners. Just talked to Ron Davis. Waiting on price. They also say use a spal fan. My spal works wonders

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mrdrinksalil · Jun 24, 2019

I can tell you what isn't working...

Test Run in the new buggy this week. 225-230 if you're getting after it. Will cool back down to 185-190 while you idle and drink beers. Temps confirmed with Temp Gun.
L96, LS3 intake, 228/230 Cam, conservative fuel ratio and timing, 2010+ Camaro Water pump with -16AN to the back of the buggy and 160 degree thermostat. Purge line ran to top of the water pump but has bleeder valve to release an air pocket.

Griffin 31x16 radiator and fan combo that WOD sells. (Griffin CU-55271-Q). Two Rows of 1.25 Tubes. Fans are rated at 1700CFM total.

Coolant temperature is reading off the driver side head. Stock L96 temp sender to Holley Dominator ECU and then to AEM CD7 display. 50/50 coolant mix. Added a can of water wetter and might have lost 3-5 degrees but no magic in a bottle.

Did the no spill funnel job to get all the air out of it I could. Going to add a second temp sender in the back of the passenger head to see if coolant temp reads lower there.

Thoughts? I'm curious to see the difference in temperature in the passenger head but im thinking 1700CFM in that Griffin setup just isn't enough airflow.

cbrjeeper · Jun 24, 2019

Get a spal.. they are technically a lower cfm then other fans you will see for sale but they flat out work. 150 for the 16in top dog they sell. 2000 cfm.. I put a 2700 cfm flexalite and pulled it back off 2 hrs later. Spal way out performed. They also make some real nice dual fan set ups that should fit yours.
With that long of a travel for the coolant, you thinking of a higher flow pump?

Prw, evans, edlebrock, and flowkooler are all at top of my list rite now for water pumps. Ron Davis told me that there is a mezeire makes a mechanical pump that should work with our set ups . Waiting on a part number and price. But claimed they are great. I'm really leaning torwards the Evan's pump. I'm also goin from 16 an to 20 an to allow more flow.

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Jduck · Jun 24, 2019

cbrjeeper said:
Get a spal.. they are technically a lower cfm then other fans you will see for sale but they flat out work. 150 for the 16in top dog they sell. 2000 cfm.. I put a 2700 cfm flexalite and pulled it back off 2 hrs later. Spal way out performed. They also make some real nice dual fan set ups that should fit yours.
With that long of a travel for the coolant, you thinking of a higher flow pump?

Prw, evans, edlebrock, and flowkooler are all at top of my list rite now for water pumps. Ron Davis told me that there is a mezeire makes a mechanical pump that should work with our set ups . Waiting on a part number and price. But claimed they are great. I'm really leaning torwards the Evan's pump. I'm also goin from 16 an to 20 an to allow more flow.

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The fans that come with the griffin combo units are spals.

cbrjeeper · Jun 24, 2019

Got it. Well there goes my shot in the dark

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cbrjeeper · Jun 24, 2019

Butttt.. 1700cfm total that came with the Griffin unit seems light for that motor combo.

I'm running Griffin 22x19 with 1 16 inch 2036cfm fan and stay at 200 210 mostly. Idle it comes down to 185. They have some bad ass dual set ups that put out 2700 3200 cfm that should fit.

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mna0121 · Jun 25, 2019

The Griffin rad will be fine, I have a $20 yard sale unit in mine, 422 ci LS. Fix the leak. Spal fans with custom shroud that covers the entire cooling surface and most important, ad an expansion tank. The tank doesn't have to be huge but needs to be the highest point in your water system and the steam vents need to terminate into the tank. Put the highest pressure cap you can find on the radiator or weld the neck closed but use a 14 or 16 lb cap on the exp. tank, this will become your fill point and will act like a burper 24/7. RTR

cbrjeeper · Jun 25, 2019

Appreciate that. I run a 16 cap now. Like the idea of closing it off and making expansion tank the fill. My 4 corner steam vent kit goes into the intake, that I dont agree with. Run to the expansion tank seems way more gooder

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wizzo · Jun 25, 2019

Jduck said:
What kind of temp drops are y'all getting out of the cbr's? The griffins seem to be right around 20-25 degrees of cooling measured on the input/outputs. I've seen the posts about the fins/inch of the cbr's being a higher count and wasn't sure what that equates to in real world heat exchange efficiency.

We seen roughly 50% drop in water temp from inlet temperature to water coming out when we installed a CBR. So if water in was 190, water out of CBR was 85, roughly. This was a buggy going from a "nice" griffin to a comparable CBR.

cbrjeeper said:
Get a spal.. they are technically a lower cfm then other fans you will see for sale but they flat out work.

Jduck said:
The fans that come with the griffin combo units are spals.

Not all "spal" fans are the same. Blade type makes a big difference apparently. Also, the Spal fans that griffin uses are the low profile motors, CBR specifically told us "they would never use those models".

mna0121 said:
The Griffin rad will be fine,

If you say so........ I've got another buddy swapping from a "nice" griffin to a CBR because it will not keep his water temps in check. Good luck with that theory.

Last thing I want to be concerned about in the summer in the SE is water temps............ Especially if you have any sort of investment in your motor, don't cheap out on the radiator.

extremetownie · Jun 25, 2019

mrdrinksalil said:
I can tell you what isn't working...

Test Run in the new buggy this week. 225-230 if you're getting after it. Will cool back down to 185-190 while you idle and drink beers. Temps confirmed with Temp Gun.
L96, LS3 intake, 228/230 Cam, conservative fuel ratio and timing, 2010+ Camaro Water pump with -16AN to the back of the buggy and 160 degree thermostat. Purge line ran to top of the water pump but has bleeder valve to release an air pocket.

Griffin 31x16 radiator and fan combo that WOD sells. (Griffin CU-55271-Q). Two Rows of 1.25 Tubes. Fans are rated at 1700CFM total.

Coolant temperature is reading off the driver side head. Stock L96 temp sender to Holley Dominator ECU and then to AEM CD7 display. 50/50 coolant mix. Added a can of water wetter and might have lost 3-5 degrees but no magic in a bottle.

Did the no spill funnel job to get all the air out of it I could. Going to add a second temp sender in the back of the passenger head to see if coolant temp reads lower there.

Thoughts? I'm curious to see the difference in temperature in the passenger head but im thinking 1700CFM in that Griffin setup just isn't enough airflow.

I dont see a problem with 225-230 if you are on it hard and it does not get any higher. That is why we have pressurized systems. I would give it a second chance on some long pulls and if it does not climb any more,i would give it a thumbs up. If you where testing at choco and ran Forney trail hard all the way , i would call 230 good.