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Thread: MPS 3 Race car.

  1. #26
    Reedy's Avatar
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    Everyone here will be able to tell you what can give the car more power but the regulations in your class may restrict a lot of them. Either way, if you currently have a standback then a proper flash tune should also be legal.

    The main issue here is everyone on this forum has their MPS as a road car and very few of us take them to the track. There's a disconnect between the mods that people do and whether or not they actually make the car go faster. My belief is a lot of them (particularly suspension jobs) actually make the car worse. We as a community really lack proper data on a lot of things.

    Want more power tho? This is your place.
    Last edited by Reedy; 15-08-2011 at 07:37 PM.

  2. #27
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    Quote Originally Posted by Reedy View Post
    Everyone here will be able to tell you what can give the car more power but the regulations in your class may restrict a lot of them. Either way, if you currently have a standback then a proper flash tune should also be legal.

    The main issue here is everyone on this forum has their MPS as a road car and very few of us take them to the track. There's a disconnect between the mods that people do and whether or not they actually make the car go faster. My belief is a lot of them (particularly suspension jobs) actually make the car worse. We as a community really lack the proper data on it.
    only exception i've heard to that is koni FSD's...
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  3. #28
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    Quote Originally Posted by Reedy View Post
    Everyone here will be able to tell you what can give the car more power but the regulations in your class may restrict a lot of them. Either way, if you currently have a standback then a proper flash tune should also be legal.

    The main issue here is everyone on this forum has their MPS as a road car and very few of us take them to the track. There's a disconnect between the mods that people do and whether or not they actually make the car go faster. My belief is a lot of them (particularly suspension jobs) actually make the car worse. We as a community really lack proper data on a lot of things.

    Want more power tho? This is your place.
    But there are some of us who have modded the suspension and haven't seen the need to input the improvements to the wider community.
    I know I tried a few things, but I fail to tell many people of the outcomes because nobody wants/needs to hear/listen.
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  4. #29
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    Quote Originally Posted by 2XS View Post
    Pics or BAN

    Is it the same one as your Facebook profile pic?
    I put photo's on my Profile here.There are plenty on my facebook.
    Later on i will put some more photos on of the car.

    ---------- Post added at 08:00 PM ---------- Previous post was at 07:57 PM ----------

    Here is regs for IRACE series http://downloads.irace.net.au/ProductionRegs.pdf

    Cams regs are slightly different but all are similar.

    cheers

  5. #30
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    Ooohh I love technical specifications!

    ........... Why all the funny looks?! I'm an engineer god damn it!

    The problem with these regs is the categories are calculated based off power to weight ratios. So if more power puts you up a category then you could be at a disadvantage. It all depends on who you want to compete against I guess.

    3.6.8 Exhaust.
    3.6.8.1 The original exhaust manifold(s) must be retained.
    3.6.8.2 The remainder of the exhaust system (downstream of the manifold, or
    downstream of the turbocharger turbine outlet) is free, subject to maximum noise
    regulations stipulated by iRace National Competition Rules
    Translation: Dump Pipe and Cat Back are Legal. Get a Catless racepipe.

    3.6.10 Forced Induction. In the case of a supercharged or turbocharged vehicle, the system
    must remain wholly unmodified, and the boost pressure must be no greater than the
    maximum specified by the manufacturer
    Boooo!


    3.8.5 Differential. The action of the differential(s) is free
    That explains why you have a quaife, it's unrestricted lol.
    Last edited by Reedy; 15-08-2011 at 08:36 PM.

  6. #31
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    already have the down pipe done and exhaust,Flash tune at the moment.just looking for little tricks or gains??? At least you are on the ball!keep them coming.
    what about the fuel pump anyone had issues with that?I will log fuel pressure and oil pressure soon.

  7. #32
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    Fuel pump is a thing that the american community will tell you is mandatory, all we can say is over here we have seen almost no evidence to back up their claims. They will tell you to get a fuel pump if all you have is a DP installed, most of us see that as completely unnecessary unless you are going with a big turbo build.

    That said, if anyones fuel pump is going to fail, it will be yours. A better fuel pump wont make your car go faster but it might help with reliability.
    Last edited by Reedy; 15-08-2011 at 08:53 PM.

  8. #33
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    What sort of DP do you have? Twin? Single?

    Can you move the strut tops? More castor?

    CDFP isn't necessary either (as Reedy said)

    Turn the inlet to the airbox upside down, then connect a cold air feed (corrugated tubing) from the front of the car directly to the airbox feed.

  9. #34
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    Yea definitely do something about the airbox if you haven't already. The stock air filter is weak as hell and Troy's suggestion of a cold air feed could help, albeit only a little.

    Urethane suspension bushings and adjustable shocks/spring rates with camber adjustment are a no brainer. The regs say nothing about Caster adjustment. As long as you can adjust those things it's really up to the driver and team to experiment and find a balance that they like.
    Last edited by Reedy; 15-08-2011 at 09:07 PM.

  10. #35
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    Quote Originally Posted by 2XS View Post
    What sort of DP do you have? Twin? Single?

    Can you move the strut tops? More castor?

    CDFP isn't necessary either (as Reedy said)

    Turn the inlet to the airbox upside down, then connect a cold air feed (corrugated tubing) from the front of the car directly to the airbox feed.
    I have castor in the strut tops,All the suspension is Murray Coote so its good but I drive to a different set up to the last owner, I like a edgy car not stable ie a little rear tow out.
    the down pipe was custom made single pipe i think, no Cat.
    I will look into the airbox scenario sounds like some sound advice there

  11. #36
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    Also don't forget simple things like ensuring the MAF sensor is clean. This will aid power delivery and cut down on throttle hesitation

    I'm also assuming the flash tune removed the boost limiters in 1st and 2nd?


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    Forgetting the most important modification of all......
    An ozMPSclub sticker.

    Mods, send him stickers!

  13. #38
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    Quote Originally Posted by bd581 View Post
    Forgetting the most important modification of all......
    An ozMPSclub sticker.

    Mods, send him stickers!
    This ^

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  14. #39
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    Quote Originally Posted by dareya View Post
    I have castor in the strut tops,All the suspension is Murray Coote so its good but I drive to a different set up to the last owner, I like a edgy car not stable ie a little rear tow out.
    the down pipe was custom made single pipe i think, no Cat.
    I will look into the airbox scenario sounds like some sound advice there
    Awesome thread!! The castor tops, I
    presume there was nothing to cut? Are you getting good adjustment?
    Redbull is DEAD!!

    Long live the Redbull ... V2



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    Quote Originally Posted by dareya View Post
    I have castor in the strut tops,All the suspension is Murray Coote so its good but I drive to a different set up to the last owner, I like a edgy car not stable ie a little rear tow out.
    the down pipe was custom made single pipe i think, no Cat.
    I will look into the airbox scenario sounds like some sound advice there
    When i put Troys rear toe adjusters in i was playing with the toe. i ended up with a little toe out, i put heaps in at first!! man it brought a smile to my face good fun when u turn in but not good on the road to twitchy. (still loved it tho would def do it on the track)
    here is a tip move on... **** you all with your memes, if you stay here in the past you have missed her future. I will post a little bit

  16. #41
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    Reedy. I have installed Quife LSD on my Gen 1 MPS. The answer is yes. I havent been to race track yet but I drive very hard on the mountain road at late night. My impression on standard GKN LSD was not enough to handle the power so the diff vibrates when you go around sharp coners. But since I installed Helical LSD everything goes very smooth and sometimes the car wants to oversteer. I have read the Japanese MAZDA MPS development project journal and found that the front antiroll bar strength is stronger than rear therefore the standerd MPS meant to understeer. However this LSD changed from understeer to oversteer. I know that Ford Forcus chassis is very good but mazda put restriction by putting worng and safe antiroll bar setting. So I hope now you understand the power of this LSD. But at smalll down slope sharp conner, the car still understeer. I used to use left foot brake to optimaize the standard LSD but in this, if you do that you spoil the true potential of this LSD. So I am installing Hotchikins antiroll bar, Powergrid front endlink adjuster, powerflex bushes and Bilstein B6 dumper this week. I am hoping that those parts can elminate understeer completely. Lastly if you want to install quaife LSD make sure that you get different bearings for the top and bottom end of LED. I think one is 15 and another end is 16.
    Last edited by 9tmare; 22-08-2011 at 11:28 PM.

  17. #42
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    I like! Just wondering are you still using stock seats? If not photos of interior? I'm planning to strip my whole interior but mainly because I really never have any rear passengers. Plan is to have Bride fixed bucket seat and Recaro for the passenger and again very very nice car

  18. #43
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    Great info 9tmare.

    Out of interest, what did the Quaife cost all up including installation? Does anyone know of any other LSD upgrade options? Ideally l'd like one that can lock as I understand if a wheel comes off the ground with a quaife it just free wheels, not the best for the track when you're bashing ripple strips all day.

  19. #44
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    Quote Originally Posted by Matto View Post
    I like! Just wondering are you still using stock seats? If not photos of interior? I'm planning to strip my whole interior but mainly because I really never have any rear passengers. Plan is to have Bride fixed bucket seat and Recaro for the passenger and again very very nice car
    Car has a sabelt seat and cage not much else in it besides dash.Cheers Still have all the interior for it sitting around.

  20. #45
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    With the boost limit's you might be safe in the way the standard MPS boost spikes early in the Rev range... You could tune it so it runs at 17psi through out the rev range might help top end , and adjusting the throttle position through out the range would help heaps above the 5,500 rpm mark if your current tune doesn't already.

  21. #46
    Spudspec is offline Senior Member
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    Hiya. Great to see some Track racing outa these things eh!!! MCAs Wow. you must be loaded or have good sponsors. they are awesome. most my buddys over here use the MCAs in their rally cars. Wish I had a budget. Are you looking at doing any endurance races? If so, would you consider a semi Rookie sharing a drive(Obviously for the right sorta $$)
    I would be keen.. Maybe just a test session first
    Anyways, as said by all, good to see you talking to people to get some Ideas.

  22. #47
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    Hi dareya,

    I'm assuming this is Clark's old MPS 3,if so it should light up the tracks in iRace a bit better than the old maroon SSS.....thou I have watched you and thge footage from Adam, the little Pulsar used to hold its own...

    It will be great to see you up against Adam in his MPS 6 and having two Mazda's out there battling it out....

    I worked for Colin Osborne last year and still have an interest in his team.....

    Cheers

    Dave

  23. #48
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    Hi Dave,

    this is Clarks old car I had driven it many times before buying it and helped with some of the development with it.I have not raced much this year as my wife just had a baby last Friday(priorities).I will race a lot more next year and have a few changes I want to make to make the car faster.

    I love the torque of the MPS thats why I had to have it.

    keep your eye out for next year because I will do a lot of testing over the break and then bring it on.

    I now have a logger dash fitted and will start to focus on my set up.

    Cheers

    John


    Quote Originally Posted by Team Green View Post
    Hi dareya,

    I'm assuming this is Clark's old MPS 3,if so it should light up the tracks in iRace a bit better than the old maroon SSS.....thou I have watched you and thge footage from Adam, the little Pulsar used to hold its own...

    It will be great to see you up against Adam in his MPS 6 and having two Mazda's out there battling it out....

    I worked for Colin Osborne last year and still have an interest in his team.....

    Cheers

    Dave

  24. #49
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    Great news John and maybe I might flag one of the iRace events next year as well...
    I just did 4days at the Bathurst 1000 and I hoping to do a few more by the end of the year....Homebush V8's and the 8hr at Eastern Creek...

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