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Update and photos from Round 4 last weekend

Successful weekend at Hampton Downs last weekend, didn’t quite manage to get a new PB , but managed 6+ laps in the 1:14’s a few in the 1:15’s with a best time of 1:14.569 for the weekend. Still 0.3 off my PB

Car performed well, didn’t manage to get the ethanol % as high as I wanted at only 60% so may be able to get some more power and cooling with 85% at the next round. Still only manage to do 2-3 hot laps in a row with oil temperature/pressure being the limiting factor, so will hopefully get an additional cooler in before the last round to see if it makes a difference. More consecutive hot laps will help improve my laptimes.
(Ordered a 15 row Koyo oil cooler, core size 360x120mm, which I will stack vertically between radiator and intercooler on the drivers side close to the other oil cooler and run in series - next round is 4-5th May so keen to see any difference)

Pictures from the weekend.



















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Good stuff, shared to Track Subies Group.
 

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Discussion Starter #1,365
Will you lose pressure with two serial oil coolers?

Time for dry sump?


Maybe a little bit, the reduction in temps should more than make up for it though.. I guess I’ll see.

Would love a dry sump, not in the budget quite yet though.


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So I couldn’t save most recent images, so not posted yet.
 

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Never seen this type of image file before ===>>> 6e9d9f8b083b9048450f0ad099ff2234.webp

Not *.jpg so I did not attempt to save them.
 

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Discussion Starter #1,369

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Discussion Starter #1,370
2nd Oil cooler now installed, and on a quick spirited street drive struggled to get the oil over 80 degrees and no noticeable drop in normal oil pressures, so hopefully it does its job in this weekend for the final round of the NZ Superlap series!

Combined 2500whp





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Successful weekend at Hampton Downs for the final round of #NZSuperlap where I managed to come away with 3rd Street 4WD for the round and the season.
Managed a new personal best of 1:13.577 on street tyres and a new all time PB of 1:12.086 on some semi slicks Brady kindly brought for me to try! Definitely 1:11’s in the car with more time on the good tyres!
Extra oil cooler definitely helped with oil temps down 10-15 degrees after 3 hard laps.


























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Successful season with respectable results too. Well done.


Thanks, no way I was going to beat the first two guys in my class (1000hp R32 GTR and Evo 10 DCT with some tricks) without a decent amount of extra power so I’m happy with 3rd. Was usually in the top 10 overall which is what I aimed for.


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Nice I shared it.
 

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A few recent photos of the car, been daily driving it to work each day for the last few months. Recently changed back to 15W50 from 20W60 oil as it’s a bit colder now and not as much track time at the moment. Got a wheel alignment last week in preparation for a street sprint next weekend. Car still seems to be going well *knocks on wood*








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Photos from the street sprint on the weekend. Ended up 2nd overall. Car seemed to perform well, along with a bit of 3 wheeling! Took the Hankook C7 tyres along and couldn’t get full confidence compared to the AD08R’s in the wet. Only remembered to soften up the dampers from the track setting on the last run, but had a moment to lose most of the benefit. Found out post event I was down up to 10psi due to a wastegate or boost leak issue (will have a look tonight)










One of the runs from the Stratford Street Sprint on the weekend. This was a 1:40.01, my fastest was a 1:39.41 with near spin. Lack of confidence and grip on the corners really shows as I’m pretty much just rolling around them and powering down the straights Can’t wait for next year.




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