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Thread: VN Group A Race Car (round 2 of the V8's)

  1. #121
    Peoples Champ Fatboy's Avatar
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    Ray Hislop has the IPRA lap record with a 1.40.1 - just so you have something to aim at...

    In saying that, his car is stupidly fast and well clear of the pack. Keen to see how you go mate, your laptimes in the other nugget were pretty good so following with interest...
    When you go back out there, i want you to hit the pace car....

    # 28 NSW APRA N14.

  2. #122
    Registered User lightyear's Avatar
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    The green car would have done a 1:47 with a lighter flywheel, better diff gears and brakes that worked. Probably even more given the driver was still learning the car.
    This car will be a massive improvement in every way. 60% more horsepower for a start. I am guessing a 1:43 on its first day out. Then improve on that with testing and tuning.
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  3. #123
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    Quote Originally Posted by Fatboy View Post
    Ray Hislop has the IPRA lap record with a 1.40.1 - just so you have something to aim at...
    I last thing I saw mr hislop, do. Was run out of talent at Bathurst. That car was miles quicker than any thing else.

  4. #124
    Registered User lightyear's Avatar
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    Without looking over the rules, I wonder why this car can run Supercar aero, and I can't.

    forum image hosting
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  5. #125
    Opens Guido's Avatar
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    That's not supercar aero...

    While the bumper is free there are limitations with regards to the splitter and there are very strict limitations with regards to the rear wing. That is much, much smaller than a v8 supercar jobbie.
    Rust is lighter than carbon fibre.

    My Sports Sedan

  6. #126
    Registered User lightyear's Avatar
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    Well when the time comes I will start attending IPRA meets and get a better understanding. With the VicV8 rules, I would want to be at least 2 seconds faster than the IPRA guys if I want to run at the front of the pack once converted to there rules.
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  7. #127
    Opens Guido's Avatar
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    Just take a look at the rule book. Despite up to 7litre motors and 10" wide slicks the local (sister to Vic v8s) QTCC cars are much slower than front running IPRA cars.
    Rust is lighter than carbon fibre.

    My Sports Sedan

  8. #128
    Registered User adamRSLC's Avatar
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    Couple of basics for IP dave,

    265 is the largest tyre for LM models,
    Limits in spoiler height, width front and back,
    1450kg min weight for an engine swap LM V8
    R spec tyres
    100mm ground clearance
    Lots if guidelines on what you can change and where you can put it.
    Don't doubt the effort required to run at the front.

    Also no wet dumped LS is running 43's at PI for more than 1 lap.
    Last edited by adamRSLC; 17-10-16 at 07:07 AM.
    Sandown 1.23.31
    Calder 1.05.76
    Phillip Island 1.47.95
    Winton 1.33.30
    H/Hills hill climb 1.03.3(FG XR6T)
    Bathurst 2.47.49

  9. #129
    Registered User Supashake's Avatar
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    We cut this until it fit the IP rules.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    GURU ENGINEERING PTY LTD

  10. #130
    Registered User lightyear's Avatar
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    Quote Originally Posted by adamRSLC View Post
    Couple is basics for IP dave,

    265 is the largest tyre for LM models, -I have 265's (slicks)
    Limits in spoiler height, width front and back, -Same as VicV8's? Or similiar.
    1450kg min weight for an engine swap LM V8 - I should be 200kg under
    R spec tyres - I knew that one
    100mm ground clearance - same as VicV8's
    Lots if guidelines on what you can change and where you can put it.
    Don't doubt the effort required to run at the front.

    Also no wet dumped LS is running 43's at PI for more than 1 lap.
    - I will find out if that's true
    Last edited by lightyear; 17-10-16 at 05:38 AM.
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  11. #131
    Registered User lightyear's Avatar
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    Quote Originally Posted by Supashake View Post
    We cut this until it fit the IP rules.
    I will do the same, VicV8's is also 100mm
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  12. #132
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    Quote Originally Posted by Fatboy View Post
    Ray Hislop has the IPRA lap record with a 1.40.1 - just so you have something to aim at...

    In saying that, his car is stupidly fast and well clear of the pack. Keen to see how you go mate, your laptimes in the other nugget were pretty good so following with interest...
    Ray also knows how to steer and poke at the pedals. I pity whoever takes over his car.

  13. #133
    Peoples Champ Fatboy's Avatar
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    Quote Originally Posted by lightyear View Post
    Well when the time comes I will start attending IPRA meets and get a better understanding. With the VicV8 rules, I would want to be at least 2 seconds faster than the IPRA guys if I want to run at the front of the pack once converted to there rules.
    I have to say, I admire your optimism mate. There is a thing called the law of diminishing returns. It's very applicable to Motorsport.

    Following with much interest, your car is almost the perfect recipe for a fast V8 without requiring a stupid budget !

  14. #134
    Registered User lightyear's Avatar
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    I have never been wrong about my predicted lap times. Unless there has been an issue, and the lap times had to wait until the next go. There may be some issues as its a new car, and it may not have everything finished in time for the next round. But it will get there.
    Been looking at buying a 9" diff now. I don't like the idea of having a heavy diff, but it is good for ratio choices and won't break. Also have been talked into going full floater. Then if you go that far, may as well get camber and toe adjustment.
    I ordered some B.C S13 coilovers. Will see how that goes too.
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  15. #135
    Opens Guido's Avatar
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    Run a strange alloy carrier, drops something like 9kgs out. Probably makes it lighter than the BW. On top of the toe/ amber adjustable floaters, Geoff at Race Products also does chromoly housings and really sweet adjustable roll centre watts links.
    Rust is lighter than carbon fibre.

    My Sports Sedan

  16. #136
    Registered User lightyear's Avatar
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    I decided to just go with the VL diff, then when I have more money and time, sell it and upgrade it.
    The alloy carrier was 7kg lighter I was told.

  17. #137
    Registered User BLO 767's Avatar
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    Sound reasoning. As I'm sure you know, you're going to want to strip as much of that chassis / unsprung weight as possible on these girls down the track. Talk to JET 3LT Jase about how much he swiss cheesed his VL body and how boat anchor the thing still was. Of course, a big ol' steel 9in - and all the rest - does that. Lol.

  18. #138
    Registered User dougmo's Avatar
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    Quote Originally Posted by BLO 767 View Post
    Sound reasoning. As I'm sure you know, you're going to want to strip as much of that chassis / unsprung weight as possible on these girls down the track. Talk to JET 3LT Jase about how much he swiss cheesed his VL body and how boat anchor the thing still was. Of course, a big ol' steel 9in - and all the rest - does that. Lol.
    it was a solid barge that thing lol, i made many offers to hack the shit out of it for him

  19. #139
    Opens Guido's Avatar
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    Quote Originally Posted by BLO 767 View Post
    Sound reasoning. As I'm sure you know, you're going to want to strip as much of that chassis / unsprung weight as possible on these girls down the track. Talk to JET 3LT Jase about how much he swiss cheesed his VL body and how boat anchor the thing still was. Of course, a big ol' steel 9in - and all the rest - does that. Lol.
    Once you start Swiss cheesing you can say goodbye to IPRA for ever though. JET3LT also had rediculously heavy/big ROH Modena wheels on it didn't it?

    Keen to see you get this lapping quick. If you can change it back to IPRA spec relatively easily would also love to see a relatively budget car towards the pointy end. But it certainly won't be easy.
    Rust is lighter than carbon fibre.

    My Sports Sedan

  20. #140
    Registered User gtrboyy's Avatar
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    Got 9 inch in back of vh...holy fuck do you notice the extra weight compared to borgwarner but the truck diff feels almost unbreakable.

    Cheapest route would be vn diff but guessing want vl for the bigger wheels & group a spec.
    Last edited by gtrboyy; 19-10-16 at 02:25 PM.
    an easy fix is get a mate to drive in front of you at 60 then 80 then 100 and mark in on your speedo with some liquid paper.

  21. #141
    Opens Guido's Avatar
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    Wouldn't a 9" with strange alloy carrier & chromo housing be considerably lighter & stronger than the BW?
    Rust is lighter than carbon fibre.

    My Sports Sedan

  22. #142
    Registered User BLO 767's Avatar
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    Yep all good points. Retaining IPRA is the hardest part considering the two major things you want to do are making room and saving weight, both which require some hefty modding. Everything to make them fast has been done before, but it all depends on how much you can get away with.

    Quote Originally Posted by Guido View Post
    Wouldn't a 9" with strange alloy carrier & chromo housing be considerably lighter & stronger than the BW?
    Correct, but path of least resistance is often the steel 9in.
    Last edited by BLO 767; 19-10-16 at 02:47 PM.

  23. #143
    Registered User lightyear's Avatar
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    I need the VL length so the wheels fit in the guards. There will be no permanent chassis mods made. I need to keep the options of other categories. Things like wheels, bumpers, body kit and even doors are all on the easy to swap list. There is also the heavy metal sport sedan class that I will look into as well. I think it's a great idea. You don't need a spaceframe car to compete at the front then.
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  24. #144
    Registered User bigshipengine.jpg's Avatar
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    How the fuck did i miss this thread!

    Sent from my SM-G900I using Tapatalk
    I Climbed Mt Druitt

  25. #145
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    Quote Originally Posted by bigshipengine.jpg View Post
    How the fuck did i miss this thread!

    Sent from my SM-G900I using Tapatalk
    'Cos it one of 11ty bazillion threads started by lightyear about the 12ty bazillion race cars he has hiding in his shed ............

    I'm now waiting for when the nopics drops the hammer and orchestrates a fleet rationalisation (sorry Dave !!)
    Last edited by BGTV8; 19-10-16 at 04:36 PM.

  26. #146
    Registered User bigshipengine.jpg's Avatar
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    Yeah that would explain it.

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  27. #147
    Registered User lightyear's Avatar
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    I have culled already. Only 3 Commodores now (including the spare parts car). I probably have started more than a few threads on cars. 😗
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  28. #148
    Registered User lightyear's Avatar
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    I ran out of carbon fibre, so decided to go down to the car for the arvo. The S13 coilovers arrived and I trial fitted them. They don't just bolt in as I was told. The top holes are close, I used a rats tail file to elongate the holes by about 2mm. The bottom holes are way off. The coilovers needs to be about 100mm longer. We will modify the bottom brackets to suit. Rears will also need mounts made at the top, and bottom shock mount reinforced. Also took a pic of the throw out, looks too good.




    upload a picture
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    Last edited by lightyear; 20-10-16 at 03:53 PM.
    NA8B 89 KW's- P.I. 1:50.1, WNTN1:38.0, SDWN 1:27.6, WKFLD 1:10.4
    NB8B 181 KW's- P.I 1:43.8, WNTN 1:32.9, SDWN 1:22.0, BDFD 1:05.3
    VN SS

  29. #149
    Non Compos Mentos Gammaboy's Avatar
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    The rear spring rates will be miles too stiff.
    "Where can we get hold of a Vincent Black Shadow?" "Whats that?" "A fantastic bike," I said. "The new model is something like two thousand cubic inches, developing two hundred brake-horsepower at four thousand revolutions per minute on a magnesium frame with two styrofoam seats and a total curb weight of exactly two hundred pounds."

  30. #150
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    Quote Originally Posted by lightyear View Post
    I have culled already. Only 3 Commodores now (including the spare parts car). I probably have started more than a few threads on cars. 😗
    Tongue was very firmly in cheek Dave .............. I'm loving what you are doing and how you go about it.

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