MK2 "vs" MK3 Turbo and Non turbo Radiators

[SupraGuy31]

Ok all, Ive talked to one the most respectable guys on the forum and he asked me if I could do some research on the Differences. Well, Luckly I have all 3 Radiators Avaliable and Its been Wondered Why the MK2 Radiator Wont cool a 7MGTE even though they are the EXACT same Size. Well here we go.

MK2 Radiator
Length.... 25 1/4" Long
Height.... 15" Tall
Thickness... 1 1/4" Thick
Fins which is the only Difference in all 3 Radiators 44 Fins X 2 since its a 2 core Radiator so you have 88 Total

MK3 non Turbo Radiator
Length... 25 1/4" Long
Height... 15" Tall
Thickness... 1 1/4" Thick
Total Fins are 65 X 2 since its a 2 core Radiator so you have 130 Fins total
(Difference 21 Cooling fins than the MK2 Radiator)

MK3 Turbo Radiators
Length... 25 1/4" Long
Height... 15" Tall
Thickness... 1 1/4" Thick
Total fins are 71 X 2 since its a 2 core Radiator so you have 142 fins total
(Difference 6 More cooling fins that the Non turbo and 27 More than the MK2 Radiator)

Koyo AL MK3 Radiators
Length... 25"
Height... 14 3/4"
Thickness... 2 1/16"
Total Fins are 66 X 2 for 2 core radiator so you have 132 Fins total. Standard Price for this radiator is $399.00- $425.00
(Difference 1 Extra Cooling fin per row as the MK3 non Turbo but almost a 1" Thicker total Core Size)

Fluidyne Radiator (No Info Avaliable)

Griffin Radiator
Length...25 3/8"
Height...14.3/4"
Thickness...1 1/2"
Total fins are 58 X 1 since its a Single core raidator so you have 58 Fins total. It looks to be a pretty much stock radiator with the Exception that its AL and it has less fins then the MKIII non turbo Radiator and Definitely less that the turbo Radiator. Priced at $325.00 in the group buy It should be ok but Im thinking the MKIII Turbo or Non turbo Radiators will do just as well if not better. Its made to be a Direct Bolt on to the MKII Supports so the Dementions arent any Different.


CSF Radiator (No longer in Production)
Length... 25 7/16"
Height...14 3/4
Thickness...2 1/16"
Fins... 64 Fins x 2 for 2 Core so that leaves us at 128. Just a thicker Radiator it seems with the same fin count as the MKIII non turbo radiator.

Mounting Tabs on the Bottom of the MK3 turbo and Non turbo Radiators are Exactly the same Distance Aparts and Distance Between. Some say that they are Different. 14.50" Center to Center on Both

If you are looking at Upgrading your Radiator or thinking about having the MK2 Radiator Cored out to a 3 row, you Basically have this in Either the turbo or non turbo Stock MK3 Radiators already. Basically Adding another core the a MK2 Radiator will give you 132 Fins. I will let you know how the Non turbo MK3 Radiator holds up. Should hold up just as good as a MK2 Upgraded Radiator.

Hope this clears some things up.

Robert

[Dangerous Ken]

Robert,

Can you list up the current griffen group buy radiator in your post for comparison? Maybe get specs from Pitula for the fluidyne and that other MkIII AL rad people are running.
It will certainly answer if the AL rads are worth twice the price.

Nice to see it all in one post.

Ken

[SupraGuy31]

I will see what I can Round up.

FIRST POST UPDATED

[turbo MKI]

very interesting info. Were the rads you used to compare the original Toyota rads for each? I have several replacement rads (CSF, etc) - I assumed they used the same cores just w/ different caps and mounting brackets but uncertain and doubt I'll get around to checking any time too soon...
I have just about every year set up from '80-'94 but never looked at them closer than the core size, mounting, etc... - nice work.

[SupraGuy31]

Thanks. I updated the first thread with the rest of the KOYO information. Good Source Stated that the CSF Radiators are no longer in Production.

[SupraGuy31]

very interesting info. Were the rads you used to compare the original Toyota rads for each? I have several replacement rads (CSF, etc) - I assumed they used the same cores just w/ different caps and mounting brackets but uncertain and doubt I'll get around to checking any time too soon...
I have just about every year set up from '80-'94 but never looked at them closer than the core size, mounting, etc... - nice work.

Yes, they are the Original Toyota Radiators. Koyo is the AL MKIII Radiator the Dave7MGTE is running right now.

Robert

[Daves2JZGTE]

CSF MK3 Al rad is out of production. I called them right after i hada fan go threw my csf..... Now im Koyo baybe.... O free bay price is $325 to $350 + shipping . Got mine to my door forr $409


Grate Thred

[SupraGuy31]

Still Working on the Fluidyne Radiator all. So far, I havent gotten anyone that will help me out here with the Specs. Going to see if I can call them Directly.

Robert

[Supra Guy Scotty]

Griffin Radiator
Length...25 1/4"
Height...15"
Thickness...1 1/4"
Total fins are 58 X 2 since its a 2 core raidator so you have 116 Fins total. It looks to be a pretty much stock radiator with the Exception that its AL and it has less fins then the MKIII non turbo Radiator and Definitely less that the turbo Radiator. Priced at $325.00 in the group buy It should be ok but Im thinking the MKIII Turbo or Non turbo Radiators will do just as well if not better. Its made to be a Direct Bolt on to the MKII Supports so the Dementions arent any Different.


Hope this clears some things up.

Robert

I just want to clear up the information on the Griffin Radiators to everyone.

The core of the Griffin unit is made out of only one row which is 1.5" wide, which in turn gives the overall core thickness of 1.5" The breakdown of the part number is as follows;
9E-BC782-01
9E = Import series radiators
BC = Toyota Supra
7 = 1 row of 1.5" tubes
82 = first year in the production run of that series car. ( MKIII will be 86 here, and MKIV will be 93 here i.e)
-01 = first design for this unit. If they come out with a unit that has a transcooler added to it somewhere down the line, it will more than likely be dubbed -02.

Also, another one of the biggest differences is that the actual fin material has stamped in louvers that actually turbulate the air that comes in and draws more heat off the tube and fins. I've actually ran the the machine that stamps these louvers into the fin material, and I beleive Griffin to be the only ones that have this in their units. These radiators were also designed specifically from MKII radiators that I myself brought into the comapny to have measurements and designs drawn from. I brought in both automatic and manual transmission versions as to check for any and all differences to make sure these units would bolt down directly where the factory ones came out. As of yet, the auto-transmission coolers were going to be un-cost effective to place in the bottom tanks like the factory style, but one day that may change. I assure you, even though I am no longer an employee of Griffin radiator, I recommend this radiator over any and all of the competitors units from every aspect of what I've seen in materials, workmanship, and personal pride that each of Griffins welders put into their work. With every piece of this unit made on-site there at Griffin as opposed to the cores bought from China, and then having some kind of made up tanks welded on after in most cases, I just want to reassure you that you are buying nothing but the best, and pure American product that you can count on.

I hope this helps clear the air about the Griffin units, and if anyone has any questions, I'll be more than glad to help try to answer any of them. Thanks..


Scotty

[KCheng]

Are the numbers posted the size of the core or the overall dimensions?