My experience with GT2RS intercoolers
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I need to find a good spot here, I'm told the lambo guys hit near 200 on our toll roads but I'm not willing. New setup should push the SRM coolers well, 658 on pump and 795 on E85 so far 
Backpressure is up though so I expect it's out of the efficiency range and is heating up! Ignition may be a little unhappy too but I'm suspecting the backpressure. I'll do some testing when I've got it back, will be fun
Backpressure is up though so I expect it's out of the efficiency range and is heating up! Ignition may be a little unhappy too but I'm suspecting the backpressure. I'll do some testing when I've got it back, will be fun
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At 120F your car will not pull as hard and there is a little timing pulled im my log last year when i had those intercoolers.
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The log I posted is on a 3.8 with hybrid K16s. Thermal recovery on the 7.2s is very quick and even with continuous track duty IATs won't get much higher than 50-55c as heat is shed very quickly when off throttle. You can't judge the performance of an intercooler by a single pull but rather by continuous full throttle pulls over a much longer timeframe to allow full heat soak of the core. The 7.2s are about the best there is for the 600whp level if fast thermal recovery is your goal. End tank leaks are not an issue if you run 1.2-1.3 bar and make sure the tabs are fully crimped prior to install. I personally find them excellent for moderate boost applications if you respect their limitations.
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Yesterday was a hot day by norwegian standards as there was 28c/82F here
warmed up on the smal roads before hitting the high way and emptying third
Started at 3046rpm and 46C /115F!!! and ended up at 7184 56c/133F
let go of the throttle and 20 seconds later i was down to 48C/118F
The start temp was really high and im not sure what to make out of it.
What im after is too know if these are normal temps, just so there isnt anything wrong with my setup.
https://www.dropbox.com/s/3xm9740dp8...fifth.xls?dl=0
warmed up on the smal roads before hitting the high way and emptying third
Started at 3046rpm and 46C /115F!!! and ended up at 7184 56c/133F
let go of the throttle and 20 seconds later i was down to 48C/118F
The start temp was really high and im not sure what to make out of it.
What im after is too know if these are normal temps, just so there isnt anything wrong with my setup.
https://www.dropbox.com/s/3xm9740dp8...fifth.xls?dl=0
Last edited by Ronny-; Jun 2, 2016 at 02:38 AM.
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Yesterday was a hot day by norwegian standards as there was 28c/82F here
warmed up on the smal roads before hitting the high way and emptying third
Started at 3046rpm and 46C /115F!!! and ended up at 7184 56c/133F
let go of the throttle and 20 seconds later i was down to 48C/118F
The start temp was really high and im not sure what to make out of it.
What im after is too know if these are normal temps, just so there isnt anything wrong with my setup.
https://www.dropbox.com/s/3xm9740dp8...fifth.xls?dl=0
warmed up on the smal roads before hitting the high way and emptying third
Started at 3046rpm and 46C /115F!!! and ended up at 7184 56c/133F
let go of the throttle and 20 seconds later i was down to 48C/118F
The start temp was really high and im not sure what to make out of it.
What im after is too know if these are normal temps, just so there isnt anything wrong with my setup.
https://www.dropbox.com/s/3xm9740dp8...fifth.xls?dl=0
A pull in 4th would have your IATs even higher...
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Hi Ronny,
Thanks for the logs. If I'm reading the last one correctly, it took ~8 seconds to get through 3rd gear starting at 3000 rpm and you're not seeing 1 bar of boost until 3800 rpm. I would expect 4-5 secs through 3rd gear and 1 bar by 3600rpm the latest (much earlier in 4th gear)
I still suspect a leak, your IATs shouldn't have moved much in that pull. What turbos are you running?
Thanks for the logs. If I'm reading the last one correctly, it took ~8 seconds to get through 3rd gear starting at 3000 rpm and you're not seeing 1 bar of boost until 3800 rpm. I would expect 4-5 secs through 3rd gear and 1 bar by 3600rpm the latest (much earlier in 4th gear)
I still suspect a leak, your IATs shouldn't have moved much in that pull. What turbos are you running?
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Hi Ronny,
Thanks for the logs. If I'm reading the last one correctly, it took ~8 seconds to get through 3rd gear starting at 3000 rpm and you're not seeing 1 bar of boost until 3800 rpm. I would expect 4-5 secs through 3rd gear and 1 bar by 3600rpm the latest (much earlier in 4th gear)
I still suspect a leak, your IATs shouldn't have moved much in that pull. What turbos are you running?
Thanks for the logs. If I'm reading the last one correctly, it took ~8 seconds to get through 3rd gear starting at 3000 rpm and you're not seeing 1 bar of boost until 3800 rpm. I would expect 4-5 secs through 3rd gear and 1 bar by 3600rpm the latest (much earlier in 4th gear)
I still suspect a leak, your IATs shouldn't have moved much in that pull. What turbos are you running?
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Thanks guys, do suspect something is wrong, or not optimal at least.
My billets have a 47.5mm/66mm/70.7mm extended tip compressor.
Stock k16 turbine, freshly overhailed with new mainshaft.
My intake is stock except for Gt2 wing with its forced induction.
The seal between the rear lid and the air filter box is tight, so no hot air should be drawn from the engine compartment.
But i need to check this.
I did replace my venturi tube as this was the only leaking part when i tested, but i have not performed a new leak test after replacement.
My billets have a 47.5mm/66mm/70.7mm extended tip compressor.
Stock k16 turbine, freshly overhailed with new mainshaft.
My intake is stock except for Gt2 wing with its forced induction.
The seal between the rear lid and the air filter box is tight, so no hot air should be drawn from the engine compartment.
But i need to check this.
I did replace my venturi tube as this was the only leaking part when i tested, but i have not performed a new leak test after replacement.
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Ok, today it was 28C/82F and i fired up the car, connected to the obd and checked the ACT, and it was already at 38C/100F
This was when the car was standing still just idling.
This was when the car was standing still just idling.
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Thanks for clearing it up.
Ronny, didn't you seal up the car well? your running about 1.25 bar which is about normal for most k16 hybrid turbos. it also depends how hot engine is... you can do pulls then cool off for 5 minutes but it still will show higher then on a less stressed car within those few minutes. Ive seen this on both gt2Rs and on AM bar n plates... do a 3rd gear pull thew temps should not go up more then 15 deg on average...
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2001 996TT 3.6L and stock ECU
9.66 seconds @ 147.76 mph 1/4 mile click to view
160 mph @ 9.77 seconds in 1/4 mile click to view
50% OFF ON PORSCHE ECU TUNING BLACK FRIDAY SPECIAL
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Ok guys, this is kinda embarrassing, but here goes...
When i stored the intercoolers i put a paper cloth in the inlets, so no dust or anything would fall into the cores....
You probably see where this is going....
Today I removed the hose and what do you know... one of the tanks still had the cloth in it.....
So now the temps seems to be acting as normal again.
Thanks for the input everyone!
When i stored the intercoolers i put a paper cloth in the inlets, so no dust or anything would fall into the cores....
You probably see where this is going....
Today I removed the hose and what do you know... one of the tanks still had the cloth in it.....
So now the temps seems to be acting as normal again.
Thanks for the input everyone!