Megan Radiator Options

[nics]

Anyone who has this??

I need a radiator replacement.

Please enlighten my with your thoughts and insights.

Thanks

http://cgi.ebay.com/ebaymotors/MEGAN-RADIA...sQ5fAccessories

[nics]

no one??

[BonzaiCelica]

i guess no one has it.

Just search online. im sure there are plenty of reviews....

[jebs]

i have one and it works great. only problem is the fitment. i think like 2 of 7 of the holes for the cooling fans lined up, and i had to bend the top brackets that held it in to make them work. it took a lot of work to make everything fit correctly lol.

[nik]

go with koyo

[GriffGirl]

The Koyo radiator is known to fit and a lot of people on here have experience with it as a great product. I'd go w/the Koyo one personally. They cost about the same anyway. I know when it's time for me to replace my radiator, that's definitely what I'll go with (if there is one for an ST)

Koyo Radiator on ebay

Another on on eBay

There's more too if you search.

This post has been edited by GriffGirl: May 14, 2009 - 11:58 AM

[Akirad1]

autozone has a aluminum rad that is like the koyo and about the same price as oem

o yeah and direct fit

This post has been edited by Akirad1: May 14, 2009 - 12:54 PM

[Culpable04]

go with koyo

there are a few people here who has them and wouldn't recommend them ( me for one )

the radiator leaks from the welds and they would not replace it or fix it, because is a racing radiator and they don't offer warranty on it.

[nics]

Thanks for all your comments. Reading more on reviews.

BTW, the one in autozone says it has 1 row and the koyo and megan has 2 rows. What are these rows for?? are these like partitions like the left part is for running w/o ac and the right part if it runs w/ ac?

[domyz]

OEM rad is WAY sufficient for a non built up 3SGTE at 400hp or less, the only thing important is thermostat (TRD 160degree does great), nature of the coolant.
Radiators are always three or four times bigger than they need, a good exemple is an old civic SI (like 97) , their rad size is half of ours and is as good as the other cars, and it is also letting more cold air entering into the engine bay.
I would not pay 300buck for a rad that wont do anything more than stock one, I would search a smaller one with the same efficiency.

2cents

This post has been edited by domyz: May 14, 2009 - 4:45 PM

[BonzaiCelica]

well your saying that you dont really need a aftermarket performance radiator such as a koyo or megan, but that a stock radiator will do its job just fine. So why is it that the gt-four st205 has hood vents and a large vent sitting right over the turbo and exhaust manifold.

1. So people that swap a 3sgte into their cars while still having the stock hood should buy a aluminum performance radiator?
2. Is a trd thermostat http://www.nengun.com/c-one/low-temp-sports-thermostat sufficient enough if your swapping in a 3sgte or a 3rd/4th gen 3sge.
3. How much cooler would your engine bay be with a trd thermostat and koyo radiator? or would a trd thermostat and a cooling plate do just fine??

This post has been edited by BonzaiCelica: May 14, 2009 - 10:42 PM

[domyz]

A swapped GT with ALL stock do the cooling job no problem, the only thing that you have to keep in my mind is to get cool air to the engine:





St205 Hood vents are better as they create a vacuum on the top of engine bay and improves cold air flow to the manifold and intercooler (W2A if you have it, or simply cooling the FM cold pipe to the throttle body)



The TRD thermostat lower engine temp by 20degreesF and transfer the temp into the radiator. This has the effect to cancel a little the fact that this is reducing engine bay heat, because the hot air draws back into the engine bay, but it is not a major problem.
The more important point is that reduce conduction and radiant heat on cold intercooler pipe and intake manifold, so it DOES reduce intake manifold air temperature which the primary heat source is metal to metal contact with the engine...
it doesn't reduce engine bay convection heat (average temperature ambient air in engine isn't lower)
it improve heat absorbtion into the combustion chamber because of the greater difference of temps between hot gases and coolant
it also improve conduction heat transfer between turbine and coolant


In my opinion, the cooling plate is useless, it reduce cold air flow to the intake manifold by the top of the engine. The radiator effiency isn't an issue for us 6gc owners, cooling plate are only for 400hp+ and/or good looking engine bay.

This post has been edited by domyz: May 15, 2009 - 8:39 PM

[nics]

i have one and it works great. only problem is the fitment. i think like 2 of 7 of the holes for the cooling fans lined up, and i had to bend the top brackets that held it in to make them work. it took a lot of work to make everything fit correctly lol.

There was a mounting kit from their site

http://www.meganracing.com/products/produc...2&catid=137

[3WayStunna]

A swapped GT with ALL stock do the cooling job no problem, the only thing that you have to keep in my mind is to get cool air to the engine:





St205 Hood vents are better as they create a vacuum on the top of engine bay and improves cold air flow to the manifold and intercooler (W2A if you have it, or simply cooling the FM cold pipe to the throttle body)



The TRD thermostat lower engine temp by 20degreesF and transfer the temp into the radiator. This has the effect to cancel a little the fact that this is reducing engine bay heat, because the hot air draws back into the engine bay, but it is not a major problem.
The more important point is that reduce conduction and radiant heat on cold intercooler pipe and intake manifold, so it DOES reduce intake manifold air temperature which the primary heat source is metal to metal contact with the engine...
it doesn't reduce engine bay convection heat (average temperature ambient air in engine isn't lower)
it improve heat absorbtion into the combustion chamber because of the greater difference of temps between hot gases and coolant
it also improve conduction heat transfer between turbine and coolant


In my opinion, the cooling plate is useless, it reduce cold air flow to the intake manifold by the top of the engine. The radiator effiency isn't an issue for us 6gc owners, cooling plate are only for 400hp+ and/or good looking engine bay.

Im willing to arugue with you on this one. I purchased Doggys cooling panel, if anything, for ****s and giggles not realye expecting much other than looks. After installation i took my car for nice long mountain cruise up here in oki, and wow there really was a difference. I wish i had a temp meter because it really no **** lowered radiator temps at cruising and high speeds. I mean yea at idle it does nothing, but when the car gets moving yea, there is a noticable difference. At least to me. Im sorry i dont have any proof to back up what im saying but it was about the best investment made in terms of cooling effenciency.

As far as an anftermarket radiator goes, of course itll help cool, even if jsut minimally..a 400$ "investment" early on for those who have 3sgtes would not hurt. True you could do more to help in terms of hoses, thermostats, etc. But if you have done all of that already, and your still not satisfied, or your car is still running hotter than usual. Then why not?

[pittfirefighter]

do you guys even know what you're fighting over?? the stock radiator has aluminum fins just like the koyo and megan... the ONLY difference are the top and bottom hookup... the reason for this is because the plastic stock ones tend to crack over time... of my four celicas... they all have broken... NOW go to advanced auto parts and get a replacement radiator for cheap (~$120, IIRC) that has a LIFETIME warranty... the cooling effeciency is no different from the stock to koyo to megan.. the actual fins in all of them are identical...

the reason they are called "racing radiators" are for guys that want to up their coolant PSI to effectively reduce heat as well... but this would involve getting silicone hoses, complete aluminum radiator, aluminum reservior, higher rated radiator cap (this is where the magic happens)... getting all parts that can hold up to the higher PSI... without a complete overhaul of the cooling system... the difference in a KOYO and MEGAN radiator in cooling effectiveness IS ZERO

as for the cooling plate... it has been show to have some good effects... when air is brought into the engine bay it first hits the AC radiator (condensor, is it?) and is pushed up and then hits the radiator and is pushed up... the cooling plate eliminates the ability of the air to rise and funnels it all into the radiator... it will raise the ambient temp in the bay but reduce internal temps

This post has been edited by pittfirefighter: May 24, 2009 - 2:24 AM

[BonzaiCelica]

i was mainly asking becuase i plan on swapping engines for a 3sge. and since those require radiator from the gt celica. It would be cheaper to go with a megan radiator than buying a new one from a toyo dealer. But thanks everybody for all that info it is very informative!

[nics]

^^ im going for megan too. like $50 difference from the one in autozone or kragen. i dont feel comfortable the one in ebay that sell for a hundred but well see how my budget goes.

now im looking for aftermarket generic fans in ebay but i have no idea if anyone has it. like this one

http://cgi.ebay.com/ebaymotors/2x10-SLIM-R...sQ5fAccessories

[pittfirefighter]

one more time... advanced auto for $120 with lifetime warranty! YOU DO NOT NEED TO WASTE YOUR MONEY ON ALUMINUM INLET AND OUTLETS

[BonzaiCelica]

oh woops oh ok, but they have no advanced auto parts here in CA. but ya they can ship so lifetime warranty sounds good thanks.

[domyz]

To 3WayStunna:

What is the problem here, if your 3sgte stay cool (normal temps), do you think you will lower the temp while putting a 300-400$ radiator? Or do you think you'll increase performance?

You remind me people that puts a cold air intake (another metallic piping kit ) on their 5SFE and think they gain 15hp because of the sound change. If thererreally was a difference, then your stock radiator was broken.