Anyone used Dennis' high flow radiator?

[juno]

What kind of improvements in cooling are there?

What are the physical dimensions?

[SergntMac]

Didn't know he had one...

[merc]

Didn't know he had one...

He advertises a Griffin on his site. Martyo uses one of these radiators in his Marauder.

http://reinhartautomotive.com/Merchant2/graphics/00000001/High%20Flow%20Radiator%20Big.j pg

[FordNut]

I've got one. PITA to install mostly due to the AC condenser and PS/ATF cooler being attached to it. About 1" thicker. Performance improvements? Dunno but it makes me feel better since I've done everything I know of to ensure adequate cooling capacity.

[SergntMac]

He advertises a Griffin on his site. I hear you now. One of the owners of Griffin has a Marauder, as I recall it. Nice unit.

I've never been disappointed in the OEM performance, but I put a hole in one last year. A factory replacement ran about 250., and the Griffin was 400.+

For Marauders active in racing in warmer climates, may be worth the money.

[Rider90]

Does anyone with the aftermarket radiator have a scangauge and can share coolant temps? OEM ala ScanGauge puts me from 187-202 during spirited driving.

[SergntMac]

If you have the stock OEM stat in place, your temps are very normal.

[SergntMac]

Temps recorded through the OBDII port with a Sacngauage.

With 180 stat in place, cruising below 70 MPH and around town, 183-185 degrees. Long term driving above 70 MPH, 187-191. Spikes from running a 1/4 mile pass or on ramp...190.

With OEM stat in place, cruising below 70 MPH and around town, 187 to 190 degrees. Long term driving above 70 MPH, 194-198. Spikes from 1/4 mile pass (or on ramp) 200 degrees.

Hope this helps.

[sweetair]

Temps recorded through the OBDII port with a Sacngauage.

With 180 stat in place, cruising below 70 MPH and around town, 183-185 degrees. Long term driving above 70 MPH, 187-191. Spikes from running a 1/4 mile pass or on ramp...190.

With OEM stat in place, cruising below 70 MPH and around town, 187 to 190 degrees. Long term driving above 70 MPH, 194-198. Spikes from 1/4 mile pass (or on ramp) 200 degrees.

Hope this helps.Why is it higher @ 70 mph with the 180 stat? Wouldn't it be lower?

[SergntMac]

Not sure I get you question, but...

Actually, the MPH isn't that important here, just happens to be the MPH where I observed changes from increased engine RPM. I have 4:10 gears, others with stock gearing may see this threshold at higher MPH.

The 180 stat is the temp where it opens and coolant is in full circulation. I don't imagine it's this precise, it may open at 183 degrees. However, running the engine at higher RPM for sustained periods creates more heat, and coolant in continous (and increased via RPM) circulation doesn't shed the heat in the radiator, nor, absorb heat from the engine as effectively, and temps rise. Let this go on long enough and you end up with "heat soak" where the cooling system fails to coll at all.

None of the temps cited are at, or, near a dangerous level, but running at a higher temp does affect on-board dynamic tuning strategy. AFR will be adjusted to cool the air charge, spark and timing may be pulled to slow things down, etc.

[juno]

I just checked with Griffin and I believe the radiator I received is a 400 hp radiator, though they say it will cool more then that and should be close to the stock size. Does anyone knw the rating on the stocker?

[SergntMac]

I just checked with Griffin and I believe the radiator I received is a 400 hp radiator, though they say it will cool more then that and should be close to the stock size. Does anyone knw the rating on the stocker? Never seen any mention of such a stat on the OEM radiator mentioned here, however, I am sure L/Ms official statement would be "rated to 302 HP". If it's any help, I'm at 538 RWHP on a stock OEM radiator, and one time I overheated, was due to a loss of coolant from a damaged core. IMHO, the OEM radiator is more than adequate for our average use and mods. IMHO, buy the Griffin after you prove it necessary.

[MarauderMark]

When my car went in for the 1st motor my radiator was toast.I don't what i have in it but it is the best he has.

[thePunisher]

keep in mind that when they give a radiator a hp limit.....of say 300hp....youre only probably making that hp a small amount of the time....its not like youre putting around at 300 hp all the time....just in small spurts maybe..... so a 600 hp car would probably never see a problem with a 300hp rated radiator in it. if this makes any sense to ya.....