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  1. dustinh

    wrx sti dd and autocross / 300v vs ?

    Yeh, I also did the cylinder 4 cooling mod. Car only has 6500 miles on it so hopefully cylinder 4 will hold out a while :)
  2. dustinh

    wrx sti dd and autocross / 300v vs ?

    I haven’t installed an oil temp sensor yet (on the list of to do). Ironically, my 2018 wrx came with one stock. On the hottest days of autox oil temps in the wrx would get to about 245*. I expect the sti should be a little bit lower than that since I’m running an oil cooler. Peak engine speed...
  3. dustinh

    wrx sti dd and autocross / 300v vs ?

    How does the X-cess line compare to 300v? The killer b does give some extra capacity. I’m not sure if it’s a full quart but definitely some extra. My goal for the car was to protect the engine as much as possible and just get a bit of extra power especially as much low end torque that I could...
  4. dustinh

    wrx sti dd and autocross / 300v vs ?

    Thanks everyone. Our events usually are around 60-80 seconds, 5 runs. The catch is, during summertime the temps are often close to 100* if not over that. Is there any reason not to run an oil like 300v as a dd? I thought I read something a while back about higher zinc oils causing issues with...
  5. dustinh

    wrx sti dd and autocross / 300v vs ?

    I have a 2020 wrx sti that has intake, exhaust and custom tune. It’s a dd for me but, it also sees 1-2 autocross events per month (I live in california where we’re lucky to have almost a year long autocross season). It also has an aftermarket oil cooler, aos, the killer b oil pan, pickup and...
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