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The top bolt on the starter gave me fits - but I ended up winning
Yeah, that top bolt is kind of tricky, particularly if you are doing it lying on your back (jackstands/quickjacks) instead of standing up under a proper lift. Once one finds the right combination of extensions and flex-ratchets, not too bad though.
John how do the 7.2 GT2RS intercoolers play with the XR1000 turbo setup at, say, 600-650 whp?
[I need to keep up with Jason's 6.2 V8 swapped 996....]
A local friend runs the XR1000s with the OEM 997.2 along with the FVD intake manifold / pipe set up. He put down 650whp at 1.3 bar on our dyno. Yeah, no issue but probably at the upper end of what the coolers will handle.
The original design big pack intercooolers on my car that used the high density tube/fin cores is not light but not super heavy. The new ones use a Garrett core and are about 7 lbs per side heavier per do88 site...
Did some digging, an old post from do88 indicate the original big pack to be 13 lbs per side, so this means the new ones are 20 lbs each... no thanks.. .
Ugh. That's ugly. That's too bad. I was thinking they actually got lighter than the previous version but I guess the Garett cores are pretty heavy. Such a huge thermal mass will be problematic once the intercooler heat soaks as it will take a lot to shed heat. The problem with all tests that get posted is that they are based on 3 or 4 pulls which really does not tell the story, it's quite meaningless actually because the core has not fully heat soaked yet.. You need to see what the intercooler does after several laps which involves 4-5 minutes of all out driving with probably 20 full throttle pulls.
Where did you see the reference to weight Chris? I looked at their website and found no mention of it. I wonder if there is a way to contact DO88 to get an official number from them.
Edit: just found it. OEM intercooler is 6.83 lbs each, DO88 big pack is 18.75 lbs each. New versions of the DO88 is 6.8 lbs heavier than old version..
Last edited by powdrhound; 02-27-2024 at 11:31 PM.
Ugh. That's ugly. That's too bad. I was thinking they actually got lighter than the previous version but I guess the Garett cores are pretty heavy. Such a huge thermal mass will be problematic once the intercooler heat soaks as it will take a lot to shed heat. The problem with all tests that get posted is that they are based on 3 or 4 pulls which really does not tell the story, it's quite meaningless actually because the core has not fully heat soaked yet.. You need to see what the intercooler does after several laps which involves 4-5 minutes of all out driving with probably 20 full throttle pulls.
Where did you see the reference to weight Chris? I looked at their website and found no mention of it. I wonder if there is a way to contact DO88 to get an official number from them.
Edit: just found it. OEM intercooler is 6.83 lbs each, DO88 big pack is 18.75 lbs each. New versions of the DO88 is 6.8 lbs heavier than old version..
I think @paopao has a set of the new ones. Maybe he can weigh them to see the actual weight.
A local friend runs the XR1000s with the OEM 997.2 along with the FVD intake manifold / pipe set up. He put down 650whp at 1.3 bar on our dyno. Yeah, no issue but probably at the upper end of what the coolers will handle.
Yeah, timing could have been better... I have snowies on the 991 at the moment, but when I looked at the summers the other day, I realized they were down to the wear bars, so they needed to be dealt with.
In hindsight, may have been better to wait on building new wheels.
02-27-2024, 10:45 PM
