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    Track S15


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    135 replies to this topic

    #41 datman55

    datman55

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    Posted 27 June 2016 - 09:35 PM

    Next time out it will have the new brakes, wheels & tyres. I'll also have all the springs rated to see what I have and adjust accordingly. Also planning to modify the existing strut tops for a little more camber, and then check all the roll centres. Finally, I'll tale the car to Andrew at Hyperdrive for a quick tune to make sure the engine is safe......plenty to do!



    #42 ichi-go

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    Posted 28 June 2016 - 11:01 PM

    Nice times being posted! Good to see more s-chassis out on the track

     

    Can hear that your engine is misfiring at higher revs, what plugs are you running? Mine used to do it when i was using 6 heat range at 35 degrees, once i've switched to 7s and cooler temps, it doesnt do it

     

    Might be your coilpack as well


    Name: Johnny Car: S15 Location: SOR

    #43 datman55

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    Posted 29 June 2016 - 07:52 AM

    Times are still a bit slow, but lots of room left for improvement (My old SR powered Datsun Sunny race car was doing 1:07's).

    I noticed the misfire also. Only seems to do it when the it's over boosting. THat's something else I'll get Andrew at Hyperdrive to check for me. I will double check the plugs though, I always used to run 7's in my Sunny - Good tip.



    #44 ichi-go

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    Posted 29 June 2016 - 06:52 PM

    Dont worry about times too much as that will slowly drop when you get used to the car, i did a 1:13 when i first went to barb as well

     

    I would stop going to the track until you get Andrew to check out the tune just to be on the safe side

     

    Ideally swap the pfc out as it is not that great, it doesnt retard timing like the stock ecu when its pinging


    Name: Johnny Car: S15 Location: SOR

    #45 VFR15

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    Posted 01 July 2016 - 05:51 PM

    Nice driving Mark.

    Did you have your datsun over here or was that over east ?
    Ichi and I do the wascc tuning days. welcome to join us at any time !

    When are the brakes going in ?

    Be interested to see how you setup the prop valve.

    Did I see you picked up a RB25 dog box too ?

     

    Cheers

    Peter



    #46 datman55

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    Posted 02 July 2016 - 09:03 AM

    Hi Peter,
    I will be certainly moving to the tuning dats soon, so look forward to catching up with you.

    The brake upgrade has begun, and I'm re-thinking things at the moment in terms of which rotor to use. The Evo 10 rotor sits around 8mm further out, so I'm going to look at what other rotors I could use to get the rotor as close to the ball joint as possible. That will give me better caliper clearance with wheels.

    No I didn't get the RB box. I'll be staying 6 speed.

    #47 datman55

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    Posted 02 July 2016 - 09:55 AM

    Ichi, car will definitely be going to Andrew before next track day.

    Eventually, the ECU will be replaced with either a Motec or Haltech Elite. I ran Motec in the Datsun Sunny, the data logging is awesome for analyzing your driving.

    The car will be totally different next time out. Much closer to race car spec.

    #48 datman55

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    Posted 02 July 2016 - 05:13 PM

    Can't remember if I have posted pics of the old Datsun Sunny race car........ so here you go.

     

     

    Attached Thumbnails

    • IMG_5258.JPG
    • Sunny - Sliding.PNG
    • Sunny Engine Bay.JPG


    #49 datman55

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    Posted 02 July 2016 - 05:16 PM

    ..... and some more.....

     

    Dyno sheet with 400hp is without the 36mm restrictor, but same engine.


    One more....

    Attached Thumbnails

    • Sunny Dyno Restrictor.jpg
    • Dyno sheet - 400.PNG


    #50 datman55

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    Posted 02 July 2016 - 05:29 PM

    So, my plan with the brake upgrade was to run the Alpha Omega kit both front & back. After bolting the EVO 10 rotor on however, the rotor sits a long way out from the strut. In fact, I believe we can get the rotor back at least 20mm and still not foul on the lower control arm. So now the search is on through the dba catalogue for a possible replacement rotor....... stay tuned. 

    (Pic attached of EVO 10 rotor bolted on with dust shield removed..... heaps of space - Apologies for crap quality photo)

    Attached Thumbnails

    • Evo 10 rotor clearance.JPG


    #51 DanJ

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    Posted 02 July 2016 - 07:25 PM

    Alpha omega gear is quality. Recommend them for sure. Car coming along great dude. I've recently done barbs first time and was awesome. Keen to go again.
    Name: Dan
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    #52 datman55

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    Posted 03 July 2016 - 04:36 PM

    The Alpha gear looks great, I'm concerned though with the EVO 10 Rotor. I'm already pushing the limit to put the 9" rim under the standard front guard. Ive read the +22 offset Enkei will hit the calliper. There is room to move the rotor back 20mm, which will hopefully give me enough clearance between calliper & spokes of the wheel. Some testing to be done to check, but if that's the case I will have some custom aluminium rotor hats made up to fit some Alcon rotors and then have some custom dog bones made to mount the callipers. Nothing is ever easy!

     

    I may well run the rear Alpha kit with the 350mm 370Z rotor..... but I'll take a closer look at that once I get the front figured out.


    Edited by datman55, 03 July 2016 - 04:37 PM.


    #53 DanJ

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    Posted 03 July 2016 - 06:03 PM

    I have ce28n 8.5 on front think offset is +28 and they clear. You have wheels already? You consider going 8.5 with higher offset?
    Name: Dan
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    #54 JimmieJoJo

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    Posted 03 July 2016 - 06:18 PM

    Apparently the rpf01s are not great for brake clearance. Ive got a set of 17x9 +22 all round on my car so we can trial fit one over your brake setup. Might need to try a different wheel design if it wont fit.

    Jim

    Eastern Suburbs

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    #55 datman55

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    Posted 03 July 2016 - 07:10 PM

    That would be great Jimmie. Luckily, the brake setup is not finalized. If I could bring the rotor & caliper to you to trial fit in the wheel, that would be great.

    #56 JimmieJoJo

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    Posted 03 July 2016 - 07:25 PM

    Thats no problem. Let me know when you would like to give it a try.

    Jim

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    #57 datman55

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    Posted 04 July 2016 - 06:12 PM

    Cool. I just need to organize a 20mm spacer before I come over.
    Will let you know.

    #58 JimmieJoJo

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    Posted 04 July 2016 - 07:05 PM

    No problem.

    Jim

    Eastern Suburbs

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    #59 ichi-go

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    Posted 06 July 2016 - 04:18 PM

    Depends on what caliper you're using, 17x9 +22 rpf1 will clear gtr brembos but not evo brembos as they are physically bigger 

     

    You might need big brake clearance wheels (something like lmgt4 or te37s)

     

    AB-JZZ30-098.jpg

     

    17" te37 with f40 brembo and 355mm rotors which i believe is the same size as evo x rotors


    Name: Johnny Car: S15 Location: SOR

    #60 volt_bite

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    Posted 06 July 2016 - 04:29 PM

    I believe they should've cleared my TE37SL in 17x9.5+12, if that helps :P


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