[Mk2] [Turbo] ST205 vs Cinq

[Ruishy1]

Has anyone actually done a comparitive test between these 2 ?

just wanna know which one is the better one before i part with cash either way

hearsay doesnt count im afraid

[dai21t]

comparing what? ones a 4wd toyota, ones a 2wd fiat.

but if you're on about chargecooler rads then the 205 one doesn't fit the mr2 whereas the fiat one does.

[Marf]

but if you're on about chargecooler rads then the 205 one doesn't fit the mr2 whereas the fiat one does.

Thats the rub. Not really worth even comparing the two when the 205 rad is a non starter for an MR2

[Dale_V]

apparantly they do fit:

http://www.imoc.co.uk/forums/viewtopic. ... t=#1082831

Leaki Tbar and I fitted one to his Rev 4 (without air con) and it was a simple straight forward job, was perfect fit and hose ends were easily workable as well, also a very efficient rad.

[Marf]

If you're willing to ditch the AC as I understand it.

[Ruishy1]

im in scotland, so aircon is very rarely needed, so ditching it and saving power and weight

ive heard the 205 one is more efficient than the cinq rad, and if it is i would rather have that tbh.

But would like to know for sure

[Charged]

They do fit, it's just a pain to make them fit. The Fiat rad is efficient enough.

[Ruishy1]

im not asking about efficient enough, id like to know the more efficient one

that sounds nasty mate but its not meant like that

[Charged]

im not asking about efficient enough, id like to know the more efficient one

that sounds nasty mate but its not meant like that

I'm no expert but I daresay the difference between the two rads makes very little (if any) difference at all.

[Dale_V]

agree with ollie, with inlet temps at 35deg C max so far from my CC with chinq rad, surely that cant be sniffed at being so consistant

[Ruishy1]

but then, why buy a cinq rad, if the st205 one is more efficient and can be had for less and is easier to fit, its all relative

[Dale_V]

a chinq rad can be had for £40 delivered NEW, st205 will have to be 2nd hand meaning condition will vary, unless you want raping by toyota

the chinq rad is smaller and easier to fit

coolant temps of a CC dont really warrant a big radiator. the only time the coolant will properly heat up, is when the engine is off and the pumps not flowing, allowing heatsoak.

[Ruishy1]

the bigger rad, the lower the temps, the higher the power, every little helps

[Dale_V]

the bigger rad, the lower the temps, the higher the power, every little helps

what engine/spec are you going for? is it a road car/track/drag?

[dai21t]

My car is running at 391bhp with a fiat radiator, seems to work fine for me.

[Ruishy1]

an amalgamation of all 3

will be doing all, as its just a fun car, not a daily driver.

will prob just get the st205 rad as from what i can fathom its more efficient, but only time will tell.

[toxo]

Efficiency is the wrong word, it's just bigger. It has more rows and more fins and therefore offers a greater cooling capability than a smaller radiator. The ST205 prerad is MASSIVE and IMHO the extra hassle fitting vastly outweighs any benefit you will see. Plus as mentioned above by Dale, any rad you get will be 2nd hand + 10 years old whereas the Fiat rad is smaller, lighter, cheaper etc.

Remember when Toyota designed this system for the Celica they did it with 2m of coolant pipes (all of which, and the radiator, were right next to the engine for some nice heatsoak), when you install it on an MR2 you have 10m of coolant pipes, and as a result vastly more coolant capacity. Therefore the radiator doesn't have to work as hard, so you don't require the higher level of cooling afforded to you by using an ST205 prerad.

[Ruishy1]

thats the kind of answer i was looking for, not just " use the cinq one becuase we all have "

cheers mate, il do some research into rads to see if there are ones that might fit ith a little less parts required, if not il get a cinq one

[toxo]

The main reasons for using the cinquicento/seicento rad is that you can:
a) keep the aircon, even with a stock bumper
b) the mounts on the radiator line up with bolts / holes on the front of the MR2

People may well fit them because they're sheep and it's what everyone else does, but somewhere back in the day that rad was chosen by someone for good reasons!

[Marf]

baaaa!