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Darmanin10

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Posts posted by Darmanin10

    RH9 R32 GTR Build Thread

    in Motorsport Builds

    Posted

    On 2/15/2021 at 3:28 AM, OST Micah said:

    It made me sad to have to throw away the Apexi radiator that came with the car. I couldn't find another one anywhere and I never saw another car with one so maybe it was a bit rare? Either way it was pretty chewed up so in the trash it went. Went with a Koyorad because they were in stock and honestly it is a pretty nice piece. I liked the Apexi drain position much better but I can change that one day.

    New rad, shroud, and fan installed.

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    I talked with a friend of mine who has a Vibrant intercooler core and looked over his logs. His IATs were ridiculously cooler than mine for similar boost levels. I had a hunt for a new bolt-in intercooler as that was the last thing I could think to do to get my MPH where I thought it should be. Unfortunately I didn't have the budget for a Hypertune or Plazmaman intercooler. I couldn't even find the right core size that was the same as what I currently had to make my own. I finally found a Garrett core part number list burried on the internet and they offered a bar and plate core that was almost the exact dimensions of my current core. My supplier had one in the whole country in stock and I got it. I was about at my wit's end with getting the MPH out of this car so if this didn't work I didnt know what to do. Some had suggested 10.5mm or more lift was needed but I couldn't justify the cost.

    Got the core in and my intercooler off. Decided to reuse my end tanks to save time and money. 

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    Gave the front a light coat of black paint and installed. I'd always wanted to do my own test on upgrading an intercooler and this was going to be a pretty great comparison. Literally the only thing changing was the core itself. 

    But then I said screw the testing, I need to get this thing to MPH around 145 so I pulled the headlight as well. I had ot try all options.

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    Went back to the track and DA was around 1300. Lower but not so much lower that it would throw off testing. Ambient temp was around 65 so a bit cooler. Made an aborted first pass because engine protection kicked in due to low oil pressure at launch. Oops, I forgot to refill the oil after the last track day. Thank goodness for engine protection! I have it set right up against known good oil pressure when full so it doesn't have to strop far to activate. Put a quart in and went back out. This was the first full pass.

     

    Another angle.

     

    When I shifted into fourth a few hundred feet before the traps instead of right at the traps I knew it was significantly quicker. I was telling myself 9.8? 9.7? I didn't want to get my hopes up because I'd done that too many times before. It had to be good though. The 60' felt fantastic and I shifted into fourth much earlier so it had to be good.

    When I got back my dad handed me the slip and shook his head and wasn't smiling. He goes, "nope, only like a 10.7 or something". Well that shattered my mood. Then I looked at the slip. What a jerk!

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    So as far as I am aware this is now the quickest H-pattern GTR in North America. And with a stock drivetrain to boot. The second quickest I know of was a 9.46 or so but with a PPG dog engagement up in Canada. I'll post some logs of the before and after intercooler core/headlight testing later but one of the two (or both) made a big difference. 7mph is huge!

    I remember seeing this on the r32 gtr facebook group. Very impressive results.

    Interesting to see how much of a difference the intercooler made. That's probably one of the things holding back my setup currently as well.

    Rb26 or rb30???

    in Forced Induction Performance

    Posted

    Performance wise, bigger is always better. More torque, easier power.

    But I was told by my engine builders that the 30 blocks are not as good for circuit work. Something to do with the harmonics I think? Anyone heard similar?

    Therefore I built a 2.6 and didn't go stroker mostly due to cost, as I wanted to keep it simple and reliable as possible on the track. Probably should have gone a 2.8, but I wouldn't have been able to help myself, and I would have gone bigger turbo, sequential etc etc

    Luddenham Raceway

    in New South Wales

    Posted

    19 hours ago, CLNSKY said:

    I thought it was a good layout too, being a stocker, it helped me alot, not much straight :P

    My small group is trying to organise a private day soon, if you are interested, i'm sure there will be space :)

     

    I would be keen. Was meaning to go 2 weeks back but the weather was iffy

    Oil Control In Rb's For Circuit Drag Or Drift

    in Forced Induction Performance

    Posted · Edited by Darmanin10

    Hey guys, I'm getting oil come out of my catch can.

    Its a 2.6, which was just recently built, after spinning a bearing at the track with an inferior oil control setup (small hi octane catch can and overfilled sump lol). 

    - 9l sump baffled, with trap doors
    - 1mm restrictor
    - Hi octane cam cover baffles
    - 5l baffled catch can setup  (2x breathers from the head, sump drain, sump vent and a big filter vented to atmo)
    - Nitto head drain
    - Nitto oil pump
    - Nitto crank collar, with crack tested crank
    - Custom oil cooler setup

    Now the issue is, I'm getting oil coming out of the filter on the catch can. This even happens on regular drives with a pull here and there. I cant quite work out why, as the catch can is a decent size, is heavily baffled and it even has a drain. 

    I don't like the fact oil is spilling out. Is there an issue with the breathing of the engine, or is it just a problem with where the filter is located?

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    • Like 1

    Rb26 Turbo Upgrade, All Dyno Results

    in Forced Induction Performance

    Posted

    On 2/2/2017 at 11:10 AM, Darmanin10 said:

    R32 GTR

    gtx3576r with 0.83 rear housing
    Tomei poncams & cam gears
    1000cc xspurts injectors
    3.5 inch exhaust 

    344kw @ 22psi

     

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    Same setup, but now forged engine setup for track abuse.

    Needs bigger injectors for more power, as they are maxed out at this level.

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    The RED line is cam timing before
    BLUE  line is cam timing after
    ORANGE line is high boost.
    • Like 1

    SAUNSW 2018 Track day GP Circuit

    in Events

    Posted

    How many spots are left?

    My car might just be ready in time and I have 2 mates who are 100% in if I can make it. We all have cams licences, so its just a matter of me running my car in.  

    I spectated last year, and was a perfect event so would love to come.

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