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My difficult second year

Discussion in 'Motorsport' started by murty, Oct 21, 2015.

  1. murty

    murty Member

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    In my first real year or drag racing my GTiR I pretty much cleared up I was the first Japanese car to win sportsman ET I was 2nd in JDM-DRC overall highest point scorer (the first non American car to get that trophy) I had a target on my back. See http://www.gtiroc.com/index.php?threads/drag-racing-my-gtir-long-story.88306/#post-522478

    Without going in to too much detail I missed the first 3 rounds of JDM-DRC and 2 rounds of sportsman ET.

    It was a case of having 1 issue but finding the cause and the solution of the issue, and every time you think you found, it because you fixed problem it turns out it wasn’t that. The shopping list was in the end was.

    Gearbox rebuild with custom selector fork.
    Turbo repair
    New actuator
    Re pipe vac pipes
    Replace inlet manifold gasket
    New fuel pressure regulator with gauge
    Several packs of spark plugs
    HT Leads

    And finally we (me and the car) were ready to take race.

    And before I continue a quick recap on how the races are run. In both classes are what is called bracket racing which in short means you put the time you are going to run on the side of your car, if you go faster than that time its called a breakout and you will lose unless your opponent breakout by more. It means that no matter how fast or slow you are you will always have an equal chance of winning.

    We come in at JDM-DRC round 4, the car running effortlessly the next rounds of racing come up the car is significantly better so I run with a lower dial-in and again its 7 cars have qualified I after a string of brilliant reactions I’m in the final where my opponent red lights giving me the win it appears I didn’t notice as I ran a .5 react and 12.72 on a 12.7 dial-in virtually unbeatable.

    JDM-DRC round 5
    Then with some tactical driving I get myself in to the final again this time I’m up against the champ and I totally fluff it I was late on the lights as I had red lit in sportsman earlier and I was just really slow however luck was on my side as my opponent broke out (went to quick) and gifted me the win. Back to back wins

    Sportsman ET round 3
    17 cars qualified where I managed to make it to the semi final and red lit gifting the win to my opponent.

    JDM-DRC round 6
    Only 3 cars entered which means 2 things more likely to take a win but less chance to earn any points

    That is 3 out of 3 for me in JDM that puts me in 2nd place.

    Sportsman ET round 4 again I reach the semi final

    The following day was RWYB so I went out on the track to see what the car was capable and thrashed it, and got a new PB of 12.5 @ 108mph so with all that work at the beginning I had found 2 tenths.

    Before I can turn the Nos back on I needed to fit a roll cage. (anything faster than 11.99 must have a roll bar loop minimum)

    And then it went to shit!

    JDM-DRC round 7 A first round exit a huge red-light

    Sportsman round 5 and JDM-DRC round 8 rained off

    So now sporting a roll cage and with the Nos filled and ready to go it was time to see what the car can do and finally after years of trying I got in to the 11s and ran an 11.87

    On to the final rounds and with no chance of winning I just faff JDM-DRC I was asleep on the line and gave the win to my opponent.

    in sportsman ET I decide to run with the nitrous on and just dick about and only ended up in the final!!! However my Nos were low and I didn’t compensate enough on my dial in and ran 12.4 on a 12.2 dial in giving the win to my opponent.

    All in all I finished 3 in JDM-DRC 11 in sportsman which I don’t think is to bad considering I missed a large proportion of the season and I left with 2 new bests one with Nos and one without, and more importantly the car once sorted has held together and taken the abuse I give it. There is a blow on the exhaust gasket which stopped me from improving on 11.8 and the clutch need replacing.

    My stats from different sheets are

    1.6 60ft
    3.6 0-60
    11.87 ¼ at 118mph
    http://www.yorkdragway.org/results.pl?date=2015-09-19;car=JDM4

    Car stats are full trim
    Standard gearbox
    1.2 bar of boost
    Standard injectors
    Standard turbo
    Standard ECU
    Stealth FMIC
    Forged engine
    80 shot of WON nitrous kit

    who knows what 2016 brings i know it isnt going to start well as i need a new head gasket.:angry:

    Here is a vid of my car in action
    [​IMG] [​IMG]
     
  2. red reading

    red reading Active Member

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    Nice write up
     
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  3. murty

    murty Member

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    cheers
     
  4. Mad

    Mad Administrator Staff Member

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    As Dan said, great write up Murty and good luck for next year. Sounds like your having some fun

    :blush:
     
  5. PobodY

    PobodY Moderator Staff Member

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    Certainly looks like a standard car (other than the half cage); I'll bet it gives a few of your competitors a shock.
     
  6. keastygtir

    keastygtir Well-Known Member

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    Well done great to hear a success story for our little cars!
     
  7. murty

    murty Member

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    cheers every one yes i am really enjoying the car at the moment i have it on the road drive it to the track upset a few people and drive it home again. when people ask i say its pritty much standard and when they ask the HP i say about 300 and look as they try and work out why the car has just beat there 400-500 hp scoob. my ambition is to improve on the 11,8 get it in the mid 11s and then i will be faster than my dads truck, and he wont like that haha.
     
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  8. Fast Guy

    Fast Guy Moderator Staff Member

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    What clutch are you running?
     
  9. murty

    murty Member

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    helix autosport clutch, i had a exedy clutch after a dozen runs the plate had warped, fortunately i had a few worn helix paddles kicking about so i got them re plated.

    if any one can point me in the direction of a better suited clutch i would be appreciated.

    at the moment i i am dropping the clutch at full revs my plan for 2016 is to slow the rate i release the clutch so i can improve on my 60fts if i was to run that 1.6 60ft on that 11.8 run it could of been a 11.6 run.
     
  10. Fast Guy

    Fast Guy Moderator Staff Member

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    The only time I dropped the clutch at full revs (at Shakespeare county raceway) I just sat there and lit up all 4 wheels.
    I find 55-6500seemed to go well. I've run 1.6s there on a 12.0 I think. In fact it's in my siggy.
     
  11. mightydquinn

    mightydquinn Member

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    Awesome Chris, nice write up and good video too pal! :)
     
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  12. murty

    murty Member

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    certainly worth a punt i have to try to not over power my launch, or learn a set up that will grip better.
     
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  13. Jon Olds

    Jon Olds Well-Known Member

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    Also running a helix in my rally car. Full boost clutch slipping type starts can just about get it to slip, on soft rally tyres (stage starts). I am happier when it lights up the tyres as its gentler on the gearbox and helps get some heat into them. Great write up. I need an excuse to bring mine down to York for a laugh
    Jon
    (its less than 100 miles for me)
     
  14. murty

    murty Member

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    thanks for the comments Jon, there seems to be a few different helix clutches when you dig around just got to find which one will suit me and my car best.
     
  15. Jon Olds

    Jon Olds Well-Known Member

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    Mine is the organic one from Mardi Gras Motorsport. Can't really fault it, although your useage is bound to be hard on clutches
    Jon
     
  16. campbellju

    campbellju Moderator Staff Member

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    I flipping love that video! Nice work murty. I enjoyed your write up too, good to see you enjoying the car
     
  17. Fast Guy

    Fast Guy Moderator Staff Member

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    I've only just watched that video. Looks like you were bouncing it off the rev limiter after dumping the clutch. Try blipping the throttle like this.....
     
  18. murty

    murty Member

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    thanks for the comments cambellju glad you enjoyed it I am a bit of a film geek so i really enjoy making and editing vids.

    yeah when the ambers comes on i give it full throttle and usually keep my foot on the floor, the nos is on a full throttle trigger if I am not feeling so brave i will back to half throttle to disengage the nos but keep the turbo spooling during shifts.

    the internal shot is when i did the 1.6 60ft and that's because the clutch slipped feeding the power a lot better than what i do (big lesson learnt). i am learning now that i am to aggressive when i launch which means i am getting too much wheel slip so i am bouncing off the rev limiter waiting for the car to catch up if that makes sense, i am currently doing some research on clutches and looking at a few mods to see if i can fit a basic launch control, so i can launch it at its optimum every time.

    failing that i will have to learn a new launch technique to get it to its optimum and make sure i do that every time the key to bracket racing it dosnt matter how well or bad you drive as long as you do exactly the same in every race
     
  19. Jon Olds

    Jon Olds Well-Known Member

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    been doing race starts for 35 years and never blipped the throttle on a launch, not going to try anytime soon also.
    my tuppenth
    Jon
     
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  20. MrMischief

    MrMischief Member

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    Great write up & vid Murty, our wee cars are so well suited to the 1/4 at that power level, reminds me of my old car. 1 bar, running 310bhp & 290lbft, best of 12.49 & a 1.55 60ft at Crail. Think I dumped the clutch between 4500-5000rpm (it was a Helix too). I've had my current one there & the surface is slippier than it used to be, plus running a fair bit more power the launch is much more difficult! Must go & rake out some vids from my old laptop....keep having fun! ;)

    Steve
     
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