ZR-1DUDE

I have done pretty much all the tricks on the ZR-1. Water wetter, cleaning the radiator, etc. It is jsut hot here in Dallas.

I am going to bite the bullet and get a bigger radiator and oil cooler. I am thinking Fluidyne radiator and oil cooler. Anybody installed them before? Comments, advice?

Thanks,
D.

FU

This should answer your question :
https://www.corvetteforum.com/review...=214&TopicID=2

This should add some confusion : http://forums.corvetteforum.com/zerothread?id=146858


[Modified by FrankUrbinati, 2:43 PM 6/22/2002]


[Modified by FrankUrbinati, 2:44 PM 6/22/2002]


[Modified by FrankUrbinati, 2:45 PM 6/22/2002]

91mongoose

Have you tried kicking the fans on sooner (via the prom in the emc)?

Are you afraid of trimming the shroud? Are you on a budget? Are you doing the work yourself? if you answer no / yes / yes then I've got a better way. Use a Ron Davis nascar radiator. Cost about $240 and it will drop the temps way down.

Rkreigh

hey mongoose. I'm in for the ron davis nascar radiator. my lingy is a bit hot and the stock rad has to go. do you have the part # and best source. I will contact ron davis and ask too.

thanks.

ZR-1DUDE

I prefer not to have to cut anything. Drop in is always preferred. The Fluiddyne seems pretty awesome. I have had Ron Davis before and they were nice.

What about thermostate? What are people running, stock?

Thanks,
D.

91mongoose

28193 w/ the no filler neck option. I bought my from http://www.rondavisradiators.com for $230ish delivered. I went with the 1" cores, you might want to try the 1.25" cores with that 368.



[Modified by 91mongoose, 12:12 PM 6/24/2002]

Rkreigh

you da man. I will give this a shot. very nice.

91mongoose

I'm running a 180 t-stat. best time to change it is when changing the radiator out. A cooler t-stat and better radiator won't do any good in traffic unless you have the prom programmed to turn the fans on sooner. No radiator will cool w/o air moving over it.

Hib Halverson runs a fluidyne in his ZR-1 (I believe, he at least tested it) and has nothing but positive remarks for it. If you're not on a budget get the fluidyne 9-row oil cooler while you're at it. That will be my next cooling mod (if I need it, that RD radiator cools really well)

91mongoose

Ron,

Here's my post w/ pics from when I did my install. Holler if you have any questions.
http://forums.corvetteforum.com/zerothread?id=273779

Rkreigh

I remember that post. not worth pulling the ron davis out of the 95 for that kind of money.

I will go with the 1.25 on the lingy. thanks. :D

ZR-1DUDE

I am convinced - a drop-in Fluidyne makes sense.

D.

FU

Let us know how you make out.

ZROne

I've got one on my car. It rocks so far (never gets over 190), but it has yet to be tested in 100+ degree heat in Texas.

FU

ZROne, Is that the drop in Fluidyne that you are talking about ? Are you using the stock oil cooler ?
TIA

Hib Halverson

Not only have I tested the Fludyne but I developed the product for Fluidyne on a contract basis back in the late 90s. All the product develoment was done with a ZR1.

The Fluidyne is unique in the market because it is a true bolt-in. You take the stock radiator out then stick the Fluidyne in. There is no cutting or trimming. The Ron Davis, the Be Cool and others are reasonably good products but none of them are bolt-ins. In addition, none of them use the Nokoloc manufacturing technique Fluidyne does. Nokoloc is a durability-enhancing method of brazing aluminum in a furnace. This allows Fluidyne to build a radiator with sealed joints between the tanks and tubes and without expoy sealers.

Generally, as long as all other cooling system components are in good condition the addition of the Fluidyne radiator will reduce coolant temps 7-10 degrees once the thermostat is fully open.

Rkreigh

the fluidyne is really nice, and after researching the manufacturing process I agree it has some advantages except the high price.

the "nascar" radiator from ron davis goes in with only minor mods and is less than half the price. I've been really happy with my ron davis but I too paid 500 (which was less than the "new" price) for a radiator that was purchased but never installed.

the fluidyne oil cooler is also a "direct fit" but high $$$$

how much better is the fluidyne oil cooler in comparison to the stocker???

they also advised that optimum oil temps are 220-240. on most ZR1s oil temps are 190-200. is that really too low??/ the LT5 seems very heat sensative and I think running the water temp around 190 seems to work well.

I will be using a 180 thermo soon. I don't think going to a 160 is ez as they don't seem to be available. how have you guys done a 160??? is it just drilling holes or mods??? haven't seen any 160s avail.

running the LT5 as cool as possible without getting the oil "too cool" I guess can be accomplished with a oil contol thermostat.

does anyone know if LPE modifies the oil thermostat??/ on my 368 LPE oil temps do run between 220-250 which seems too hot to me!!!

91mongoose

I have a 180 with 3 1/8" holes drilled in the outer edge. With you radiator setup, a steady 75 in 6th on a 80-85 degree day won't bring the temps above 161 (unless it was already hot, and then they slowly come down to 165ish) If I were doing it again I would go with 2 holes instead of 3.

xsmph

I'm surprised that with all of our cooling needs nobody has developed BIGGER fans. It seems to me that the problem is a low speeds, and idling in traffic when it gets hot outside.
If somebody could come out with just a bigger fan set up that would be a true bolt on some $$ could be made.
I'll be lining up for a set up ike that, and I already have a Griffin 2-row 1-1/4" each row.
We need More Air FLOW!!!

FU

Copied from ZR1 Net (Jim Van Dorn Auth.)

The updated motors, AC Delco #15-8404, (both motors are the same number) have a new sealed motor assembly and higher operating rpm's. In addition, there is an accompanying new fan blade assy, AC Delco #15-8468.


:D

xsmph

isn't this the std. for the later models Zr-1's and Lt-1's?