something interesting and concerning about the stock intercooler

Tim@TBDevelopments

Tim@TBDevelopments

Lifer
see the core is actually cold still. it just seems like its ability to remove heat is comprimised after a short time.

well i say cold, if you did a 3 gear run then pull over its cold. so only has about 30 seconds to cool down.

went out again today, saw 65 degree's and knock going mad :( that was a 3 gear pull. wouldn't even dare using it in something like a track enviroment

Tim :)
 
corofin12345

corofin12345

Member +
you could wrap the whole engine with that stuff but it wouldnt make a differnce to the stock top mount.. what you got to understand is that 90% of the heat created on and in the top mount is caused by the compressed air from the turbo and not heat soak from the engine.. the top mounts area and lenght is just to short of an area to cope with higher boost.. the arc top mount is better but still not half as good as a front mount.. ive a blitz front mount and the hot pipe runs over the mani, alot say this isnt good enough cause of heat soake from mani but after a very spirited drive if i was to put my hand around the hardpipe at throttle body, its stone cold..
 
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Paul_JJ

Member +
corofin12345 said:
you could wrap the whole engine with that stuff but it wouldnt make a differnce to the stock top mount.. what you got to understand is that 90% of the heat created on and in the top mount is caused by the compressed air from the turbo and not heat soak from the engine.. the top mounts area and lenght is just to short of an area to cope with higher boost.. the arc top mount is better but still not half as good as a front mount.. ive a blitz front mount and the hot pipe runs over the mani, alot say this isnt good enough cause of heat soake from mani but after a very spirited drive if i was to put my hand around the hardpipe at throttle body, its stone cold..
Click to expand...

Cheers mate!

How is the HDI compared to Blitz??? Cost 3-4 times cheaper and about the same size!
 
glanzadude

glanzadude

Lifer
glanzanut do you not think the hdi cooler is way to big and makes bits of the bumper.I love the way whiteglanzav did his last cooler kit. it was only a core of ebay and he was runing big power out of it..
 
Rory

Rory

Lifer
Bigegst issue with the top mount intercoolers is the fact there is no where for the "dirty" air to escape from the back side of the cooler.

Restrictions in air flow also cause heat to generate.

But this thread from Tim will hopefully steer folk away from these "super dooper" Arc intercoolers and put there hard earned into a FMIC
 
Tim@TBDevelopments

Tim@TBDevelopments

Lifer
i only went with one because i didn't want to cut up the front bumper up and keep it looking standard. the heat doesn't concern me to much as i've got methanol injection going on spraying into the end cap of the arc anyway so as long as that sorts the temps out i'll stick with it. otherwise i'll look at doing my custom chargecooler i planed to do.

i see that american company who did the cams has just releaced an ARC copy. be interesting to see if that suffers the same. i would take a guess and say it'll be the same as it uses a bar and plate core, very similar to the chinese greddy copies i see for the mr2 and they do flow quite well but there cooling is very poor. so using the same core i expect to see good flow over standard but poor cooling.

saying that the ARC cores are actually very good flowing yet i still saw a greater pressure drop from that than standard.

Tim :)
 
Sheldon

Sheldon

Malta Area Rep.
glanzadude said:
glanzanut do you not think the hdi cooler is way to big and makes bits of the bumper.I love the way whiteglanzav did his last cooler kit. it was only a core of ebay and he was runing big power out of it..
Click to expand...

x2. dont like the fitness of the HDI one.
 
weeJohn

weeJohn

Lifer
mr2turbored said:
went out again today, saw 65 degree's and knock going mad :( that was a 3 gear pull. wouldn't even dare using it in something like a track enviroment

Tim :)
Click to expand...

Those a high temps compared to what I get with this sensor and a fmic. On a TD04 at 1.4 bar I have never seen the temp go above 45 degrees while on full throttle. When its in traffic and sitting at idle the temp creeps up but as soon as you move off it drops again.
 
Tim@TBDevelopments

Tim@TBDevelopments

Lifer
yeah mine sits about 20-25 cruising about and as soon as i boot it it'll jump to 40 almost instantly and maintain for say 5 seconds then it'll count upwards at estimate 2-3 degree's a second while on full throttle and doesn't show any signs of stopping. i'm seeing 65-70 and datalogit is showing its throwing the fuel in at that point and seeing high knock. Think its actually time for a remap because of this intercooler as i had a 75 note on my PFC knock level today when 40 is the norm on my car.

this is a k1 running 0.9bar so not alot of boost at all.

Tim :)
 
weeJohn

weeJohn

Lifer
mr2turbored said:
yeah mine sits about 20-25 cruising about and as soon as i boot it it'll jump to 40 almost instantly and maintain for say 5 seconds then it'll count upwards at estimate 2-3 degree's a second while on full throttle and doesn't show any signs of stopping. i'm seeing 65-70 and datalogit is showing its throwing the fuel in at that point and seeing high knock. Think its actually time for a remap because of this intercooler as i had a 75 note on my PFC knock level today when 40 is the norm on my car.

this is a k1 running 0.9bar so not alot of boost at all.

Tim :)
Click to expand...

Sometimes my car shows a little knock on that reading but my mapper has listened intently to it and hears none. My engine is a bit noisey as the clearances are towards the large side of the service limits but it still runs well, so this could be the cause.

Its maybe time to look at the map a little, could be a little to much timing in there.
 
Tim@TBDevelopments

Tim@TBDevelopments

Lifer
this ones definitly map related, added a little bit more fuel and pulled a degree out of that area and its fine now.

only a temp thing until i get found to doing a full map when the methanol goes in

Tim :)
 
Tim@TBDevelopments

Tim@TBDevelopments

Lifer
i was going to but i think i'm going to stick with this ARC and my methanol injection. i'll look into front mounts if that doesn't control the intake temps.

saying that if i use this 5e block on the k1 i'll have to go front mount as the 5e is to tall for the ARC

Tim :)
 
GTti

GTti

Member +
It'd be interesting to know the differences in air intake temperatures with the same cooler but a more efficient turbo. Then we can see if it's the heat generated by the CT9 during the compression process, or if the intercooler really does significantly contribute towards higher temperatures. I suspect that the biggest contributor is the CT9 itself.
 
Tim@TBDevelopments

Tim@TBDevelopments

Lifer
well i'm using a blitz K1 already which has bigger compressor blades, larger exhaust housing and turbine and only 0.9bar which is hardly ticking over so fairly effcient already. ct9 would be even higher

Tim :)
 
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