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aku_wekara

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Posts posted by aku_wekara

    Jun 264 9.7mm Rb26 Cams

    in Forced Induction Performance

    Posted

    i have dropped a set into my engine with the -5's and they were no better until we put the ported head on. We did see an improvement then but only over 20psi boost. Not to mention quite a long time dialing them in last time on the dyno, lots of work for very little gain over stock.

    Does sound much better idling though if thats you thing.

    ended up with 500hp at the crank with a full forged bottom end

    Hmm.. Thanks for the input, I appreciate it..

    I was pretty set on the Jun's but maybe not anymore.... Was keen for a slightly angry gtr idle too :P

    Or maybe i'll have to get the head done and run over 20psi boost to make it worthwhile :P

    Jun 264 9.7mm Rb26 Cams

    in Forced Induction Performance

    Posted

    All the Vic circuit GTR's use stock cams with ~380rwkw being the norm output.. and there are a few of them

    So apparently not. (FYI, most of them had poncams or other upgrades ones, and have since returned to stock)

    Yeah ive heard that somewhere.. How are they making so much power though with -5 setups or are they running slightly bigger? What sort of boost generally on the track?

    Obviously they have dropped the stock cams back in for better lap times right? That's pretty interesting and surprising....

    Clean & Straight 1988 Series 4 Rx7 13b Turbo

    in For Sale (Private Whole cars only)

    Posted

    Item: Mazda RX7 Series 4 1988

    Location: Brisbane / Gold Coast

    Item Condition: Good

    Reason for Selling: Overseas commitments

    Price and Payment Conditions: $12,950 ono.

    Extra Info: Very Clean & Straight 1988 Series 4. Lady Owner since 1999. Rebuilt Dyson Rotary Engine with TO4/66 Turbo. Price Neg.

    One of the latest model series 4's. Very tidy car. Has been well cared for by lady owner over the last 9 years and not thrashed like every other modified one out there.

    Dyson Rotary 13B Turbo fully rebuilt 2000kms ago. Dowelled, 3mm seals, turbo port. Garrett TO4e/66 turbo P-trim 1.32 rear - only 5000kms old from brand new. 42mm External Wastegate, Aftermarket Exhaust Manifold.

    1000cc Indy Blue injectors with custom dual fuel pump setup with external surge tank & malpassi fuel reg. Microtec MTX8. 3" Quietened exhaust. PWR Large Front Mount Tube & Fin Intercooler. Heavy Duty 600HP Clutch with high clamp pressure (very easy to drive). Boost, water temp gauges, turbo timer, short shifter. 16" Advan Light weight allows. 80% Tyres.

    Serviced every 2-3000kms with Castrol Forumula R Full synthetic oil, once since rebuild. Has not been boosted. Approx 300 hp at the wheels on 8psi. Genuine reason for sale. Great platform for a serious street / track / project car.

    Contact Details: Aku 0411880884 or [email protected]

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    R34 Gtr V-spec Intercooler (calsonic)

    in For Sale (Private Car Parts and Accessories)

    Posted

    Item: R34 GTR V-Spec intercooler, Tube & Fin, Size: 600x280x62 from memory? 3" inlet & outlet.

    Age: Used for less than 20,000kms off late 34 v-spec

    Condition: Perfect

    Price: $440

    To Fit: (What car) GTR / GTS or many others.

    Location: Brisbane / Gold Coast, can ship interstate

    Contact: PM, 0411880884 or [email protected]

    Comments: Great Cooler. Better flowing core than r32 & r33 GTR intercooler. Efficient up to 350rwkw.

    Any questions let me know.

    Thanks.

    Aku.

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    Circuit Gtr, Which Intercooler?

    in Forced Induction Performance

    Posted

    firstly sticking an oil cooler between the intercooler and radiator is a poor idea. waste of time. to do it properly you need to place it in one of the ducts and let it vent out the back of the guard lining. use some alloy sheet to seal it off so the air flows through the core properly.

    personaly I say neither intercooler is "best" for circuit use. a nice light, good flowing ARC M079 would be the trick, with the fluted intakes, lightweight 70mm thick core. but since you have a trust one just use that. just be aware that that big thick intercooler is going to kill the air flow to your radiator so you intake temps and boost pressure drop may improve but your water temp will go up a fair bit. so then you need to upgrade the rad too. or you can stick with the stock intercooler and (since it allows more airflow through the core) and the stock radiator and use some smart ducting to improve their efficiencey. and do the duct mounted oil cooler too.

    Thanks for the reply. Yeah im pretty aware of the temp issues and will have a decent radiator going in and will spend a lot of effort on ducting etc.. will do some more investigating on the oil cooler location etc but what you mentioned definitely seems like a goer.. just a bit worried about brake cooling if i was to mount it in one of the ducts but i suppose theres a way around that too..

    Circuit Gtr, Which Intercooler?

    in Forced Induction Performance

    Posted

    lol, cool :banana:

    on the sump, I still have stock capacity sump, just keeping it overfull and have done a year worth of sprints at QR so far...

    Hmm that's good to know. Yeah that's what i've been doing so far as well and has worked well but somehow i just feel as its a ticking timebomb and basically ive cut a deal to get it done without really costing anything so just thought id do it..

    what intercooler do you run and whats the rest of your setup? seems like a good track package you have with those times etc.. and stock sump with the g-forces required to do 57's for a year is pretty impressive.. fresh engine though?

    Circuit Gtr, Which Intercooler?

    in Forced Induction Performance

    Posted

    I did, before my silver r32 GTR.

    I have been hunted down. lol

    Have we met? Hopefully see you at QR soon. :)

    cheers

    Mick

    A mate of mine test drove your evo4 when you were selling it. Just met you briefly I think. Somehow just though that was you, haha I was right!

    Yeah will be at QR soon. Hopefully some Lakeside days too.. Just waiting on some free time so we can get bigger sump and oil cooler done before I get out there and blow the rest of the standard motor up :blink:

    Circuit Gtr, Which Intercooler?

    in Forced Induction Performance

    Posted

    Hey Aku,

    Long time no see... Dont know if you heard yet.. Vinnie just bought an 04 m3, and a second set of race rims with semi's on them!!! We should all go to QR soon and have some fun!!!

    P.s the 34 is heaps quicker than the M3!!!!!!! :thumbsup: .

    Take care mate. glad your keeping the GTR.

    Hi Ben,

    Good to hear from you.. No I haven't heard about Vin's M3.. I was supposed to meet up with him the other week but didnt end up happening.

    Yeah Im with you all the way with the track fun stuff, I should be good to go for track in around 2 months and will then be keen as. Lakeside is definitely a go aswell. Probably a bit better than QR from what I have heard...and Hilly too!

    Talk soon...

    Just had a retro look at some of my temp figures before and after the location change of the oil cooler.

    On the strteet With the cooler mounted up in front of the radiator the oil temp would steadily climb till it reached water temp (84%)

    On the track water temp climbed to around 88/90% but the oil temp would go through 120%.

    After i relocated the cooler to under the front bar the oil temp on the street ran a degree or2 higher than water temp but never went past 93% on the track on a hot day.

    A marked improvement and well worth doing.

    Hey Aku. Is the Vinny of whom you speak the guy with the red 32 gtr, That was a quick car. The bimmer will have its work cut out trying to match it.

    Nah he used to have a black gtr. Must be a different guy.

    Thanks for your feedback regarding temps etc, appreciate it!

    Circuit Gtr, Which Intercooler?

    in Forced Induction Performance

    Posted

    where is are you going to mount your oil cooler?

    I am running a HKS 3 layer intercooler (100mm), but my oil cooler sits behind the intercooler and in front of the radiator.

    I would like to get some ducting for the oil cooler or relocate somewhere else as I am sure it could save 5-10 degrees oil temp not sitting behind thick intercooler...

    michael

    Yeah I'm not going to mount the oil cooler between intercooler and radiator.. Either looking what Fineline has said or then next to the gearbox (as suggested by Gavin Wood Autotech).. Havent really looked into the oil cooler part as much yet but will definitely run one..

    I guess the key with the oil cooler is basically independent airflow through it just as with the intercooler so anywhere it can get 1st hand air so to speak..

    What is your setup like Michael as I will be hitting QR aswell, I mean boost, inlet temps, water temps, oil temps etc?

    Did you used to own an evo4 before?

    Cheers,

    Aku

    Circuit Gtr, Which Intercooler?

    in Forced Induction Performance

    Posted

    I would look at which one i could get the most money for and sell it and keep the other. The std cooler is meant to be a pretty good thing and on the circuit you always have plenty of airflow through it so heat soak isnt such a concern.

    That all said i suspect the Trust jobbie would do the job slightly better :wacko:

    Yeah I am considering this too... Should be able to get a fair bit more for the Trust unit..

    Circuit Gtr, Which Intercooler?

    in Forced Induction Performance

    Posted

    standard

    spend your money on ducting for your oil cooler and ducting to your brake setup

    these will be far more important than what intercooler core to use

    Yeh fair enough but what about the high intake temps from running around 20psi boost in like a 35degree day and the potential power loss / detonation / possible ring damage and more?

    Wouldnt the trust unit hold the intake temps consistantly lower?

    I read somewhere that someone running 1.2 bar through a 32gtr cooler (a cooler that apparently flows less but cools same as 34 gtr cooler) with upgraded turbos is always on the adge when it comes to detonation and intake temps on a hot type day here in QLD.

    Thanks for the responses so far..

    Circuit Gtr, Which Intercooler?

    in Forced Induction Performance

    Posted

    Hi,

    Just wondering if I could get people's opinions, especially those who have first hand experience, on what would be the better intercooler set-up for our mainly to be track / circuit driven r32 GTR...

    The choice is between (1) A perfect condition r34 GTR v-spec intercooler, or (2) A good condition Trust 100mm thick tube and fin bolt in intercooler?

    I have both coolers ready to go just tossing up which one to chuck on.

    Factors to consider include:

    - QLD heat - maybe up to 38 degree track days.

    - Max 340rwkw power, with -5 garret turbos, maybe 1.4 bar boost.

    - Any increased lag / worse throttle response and how much..

    - decent 52mm alu radiator will also be installed

    Any input is appreciated... Thanks in advance..

    Cheers,

    Aku

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