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so no-one knows if you can use the 25 spline z31 companion flanges with the z31 halfshafts in an r200 into 240z rear suspension

many thanks fellas,i'll follow it up

Hi guys, looking for a set of 15" centerline autodrags for my 240Z but having trouble getting anyone to ship to me can anyone help out? may be able to send you an RB30 in return:coollook:

Just did a search,but nothing definitive,I have some 4 bolt Z31 turbo halfshafts that I believe I can use in the R200 CV conversion(need to reverse the bearing carrier) Question is can I use the Z31 companion flanges or is there an issue with bearing or length compatability with the 240Z hub/stub axle?? The splines (25) seem to match on the sample I have so that's one obstacle out the way I know Ross sells the adapters if I get stuck but if I can use OEM parts then I will I have a 280zxt setup for my other 240Z (compliments of Terry) but have a spare pair of Z31t shafts that I may as well use if I can. Thanks guys.

haha,i can get plenty where i am,just wondering if it's worth sending any overseas would most of you be interested in the short block,complete motor,DOHC conversion,etc,etc

out of curiosity how many of you guys are after one and what are you currently paying stateside?

i had a similar problem with my T3 on RB30ET(all factory),no problems until i doubled the boost then smoke +++ on heavy acceleration turned out i needed a much bigger breather in the rocker cover and getting rid of the PCV valve which was too restrictive,ran a 1/2 pipe into a catch can....voila you could test the theory easily by leaving off the filler on the rocker cover,taping a thick rag over the top(to stop oil blowing everywhere)and going for a quick run

personally,if you are looking at forced induction,i would go the turbo route for the following reasons: -you probably only need low psi so the turbo won't be working hard...see reliable combo - it doesn't take anywhere near the hp to run a supercharger - it will be much easier on the gas(no parasitic drain) -you can adjust the boost/hp with the turn of a valve(wastegate) -it will be quieter....see stealth mode -you won't notice the off-boost lag as you have good comp with low boost -you probably won't need an intercooler with low boost -power won't come on like a lightswitch and destroy all hope of traction now for the downside..... -i wouldn't go blow thru carb with a turbo,so you will need the later fuel injection setup(bigger injectors tho)and the ancillary engine management system -probably more expensive for a decent plumbing job,stay away from ebay "kits" have a look on turbomustang.com good luck either way paul

rbs30, when do you start seeing boost,what rpm is full boost in by? how many psi are you running max? you running in/ex wastegate....size? what psi have you needed to restrict the boost to in the first 2 gears?

hi guys couple of comments/observations/questions sooley,there is a knowledgable guy on the skyline forum called discopotato03,his real name is adrian,i PM'd him some time ago seeking advice on turbo selection for my RB30ET....he didn't reckon the GT3040 was a well matched turbo for my application(PM me if you want to know more.....don't want to post his ideas that he PM'd me...or you could try contacting him direct,as 1000's of others do...may have to "take a number") rbs30....thanks for the PM today,i'll wait for the pics mate,i am at the crossroads of an upgrade for my RB30ET/240Z and have read reams on the RB25 head on the RB30 block.....was really impressed with the torque figures,but now i am wondering if i would be better just upgrading the sohc head(porting,cam) as i have custom in/ex manifolds ready to go no point building up a torque monster then working out i can't get it to the pavement....what do you reckon you'd do in my shoes? there is no doubt that the smaller GT turbos will produce lots of HP(400-500hp),however this is likely to be on mega boost and at the expense of engine longevity.the bigger GT's eg 35R will produce the same HP at less boost psi i think i will try and match the turbo size to 2 factors 1)maximum hp figure.....compressor size 2)maximun traction.......turbine housing size(auto trans/high stall will help too) i was leaning towards a GT3076 with the 1.06 turbine a/r external gate or the GT35 (.70 compressor housing)with an internally gated .82 a/r....may even consider the XR6 turbo,GT35 with 0.5 a/r comp and 1.06 IWG turbine housing sooley ,sorry about the semi-hijacked thread,love the car,who did your cage,is it legal over east? only 1/2 cage allowed in perth

few shots of the engine bay of my 240Z fitted with an RB30 turbo out of an australian holden vl turbo commodore(nissan engine) currently running 5 speed,T3(14psi),3.36:1 R180,bar and plate fmic,wolf 3D ems......soon fitting 3.54:1 R200 lsd,ported head,bigger cam,custom plenum and ex manifold(extractor type),R34 tube/fin fmic,550cc injectors,strengthened jatco auto and 2800 rpm hi stall,and of course bigger turbo(GT35R or GT3076R...not decided yet)

hi hank heres some additional info VG30DET The VG30DET is the same as the VG30DE, but with a single ceramic turbo. It produces 255 hp. It was used in the Nissan Leopard (F31) As well as the Nissan Cima, Gloria, Cedric (y31) and 300ZR (z31) (same as the 300ZX , just the VG30DE and VG30DET instead of the VG30E and VG30ET ) furthermore...... Are there two variants of the VG30DETT, one with quad cam and one with dual cam? If so, what are the differences? The twin turbo 300 horsepower VG30DETT's (280 hp in the auto) found in the US 300zx engines are twin cam. A twin cam VG30DE version was found in the 222 hp non turbo 300zx. The early Maximas had a 160 hp single overhead cam VG30E engine (the SE's from 1992-1994 had a twin cam VE30DE engine very similar to the VG series). A quad cam single turbo VG30DET was factory equipped in overseas Nissan models such as the Leopard, Cima, and Cedric. The V6 quad cam engine was rated at 255hp @ 6000 rpm with 253 ft lbs of torque @ 3200 rpm. Both the twin cam and quad cam are 3L 24 valve V6 engines with high nickel blocks and forged crank and rods. the VG30DET is quad cam/twin throttle body/4 valves per cylinder/single turbo (T3 steel wheeled in australia) which i beleive has more potential than the earlier VG30ET....it should fit in the Z31,but i am no 300zx expert hope this helps paul

I have too many Z's(RB30ET,VG30DET and 302 Windsor) so one must go,hence the ad to sell the VG30DET variant,located in western australia,have a look and get back to me if interested in the car or parts regards paul

what about a turbo 302 windsor,std motor(the one with forged pistons,roller cam,gt40/cobra heads,cobra intake),masterpower T-70 turbo(about US$600),flipped bbk headers with flanges and pipework to mount the turbo,very rapid spool if you use the .68a/r exhaust housing......and an easy 500hp(about the reliable limit of the std block) i have a 240z with a turbo RB30(worth peanuts in australia,lol) and another with a boss 302.............to me the RB is like a daily shopper until you wake it up with boost,very easy to drive,very quiet,good traction,rapid acceleration the V8 is very torquey,easy to wheelspin and doesn't have the jet like acceleration of the turbo RB solution......put in a turbo 302,best of both worlds,lol have a look at the numbers the guys with mustangs are running with low budget 302 turbos,then take off hundreds of pounds......scary fast!! also there is much more room in a Z engine bay have a look on the turbomustang forum paul australia,west coast.

just skimmed this thread,may have missed it but if not this aussie site is a mine of information...........http://www.skylinesaustralia.com

..........i beleive the 94/95 cobra intake is a low version as well,from my measurements it seems it should fit in my engine bay and clear the hood(see pic) i have 9" to the top of the air filter element.....the same height as the above mentioned intake from what i have been told....measured from the top of the block near where the distributor goes that's the good news......the bad news is these particular intakes seem to fetch an arm and a leg on ebay,unlike the explorer or 86-93 cobra intakes(more than a used performer,holley,gt40 at around US$360+) and are not commonly listed i am considering just using the HO 5.0 94/5 intake either as is or sending it to tom moss for porting read my thread on turbomustang.com......sorry guys had to go to the dark side as my post on hybridz didn't give me the info i needed,lol http://www.turbomustangs.com/smf/index.php?topic=71823.0 regards paul

try this guy ,AU$800,good luck.....link above

can't beleive no-one has an answer to this one,it's hardly out in left field,efi 302 in a Z?

done a search but nothing conclusive will an explorer intake fit under the hood of a Z with a 302 in it? i believe the standard HO mustang intake is around 9" tall and the explorer (gt40) is about 10 3/4" has anyone got a gt40/explorer intake to clear the hood?? is it possible to mill some off the explorer one to lower it some?? is it worth the messing around or just better to use the standard mustang 5.0 one?? i intend using it in a turbo application cheers guys paul WA

no takers on the turbo query?

alex, you talking about the car or just the motor?

g'day terry you sent me the 280zxt halfshafts via ebay no typo on the tyres,looking for the sleeper look,these tyres don't do too bad behind the current boss 302na 5 speed for traction...more a matter of feathering the throttle/clutch in the first 2 gears the turbo motor is more serious,hence the auto trans(C4 or AOD...not sure yet) and that's why the turbo selection will be crucial,needs to deliver even power from low down rather than come on with a rush higher up and blow the traction away here's a pic of the car as is....black one is my 240Z with RB30Turbo regards paul WA

Greetings from downunder Just about finished collecting parts for the turbo conversion of a 302 windsor in my "z" motor is not standard(alloy heads,roller cam/rockers,o-ringed block,forged pistons 8.5:1,crank girdle)and looking for 500-550HP looking for suggestions re turbo size,i've done a search and most guys are using PT76 turbos....i was wondering about either a garrett GT35/82r or a TO4Z with a .84 turbine housing which turbine size for rapid/low rev spool-up(have 50mm wastegate)?? what difference in spool-up am i likely to notice going to a dual ball bearing rather than plain bearing turbo?? i will be running an auto(have 5 speed atm) looking for good low rev torque/spool-up as long as i will be able to get traction(running 3.54:1 quaife 'lsd' diff with 15"x215 60 series tires,std suspension) thanks guys

in my experience the IRS is far superior to a live rear axle for street traction ie limited tyre diameter,width of tread and type of rubber compound the nine inch diff may be able to handle bigger torque/horsepower but in a street driven Z the IRS (R200) will put more of that power to the ground drag racing at the track,that's a different story....the 9"/4 link may well be superior paul

granted ....but you'll feel a hell of a lot better knowing you don't have to pay for a new LSD carrier as well......lol i think this whole issue comes down to how far you want to go and at what cost ie traction vs CV's vs diff strength vs companion flanges vs 4 small wheel studs if you've picked a target HP then what is going to give first from that list,if you replace that item with a better one, what is the next weekest link an so on. if you want to be absolutely certain with the IRS setup then go R230,quaife LSD(ATB-automatic torque biasing),300zx CV's,MMS companion flanges,1/2" 5 stud wheel lugs and "street slicks"....but if off the line hook up is your main goal then i'd concentrate on rear suspension and wheel/tyre combination as i think this is the weekest link in a street driven big HP 240Z...and probably the most neglected incidentally going to a live axle four link setup will not be of any use for hooking up on the street,no matter how bullet proof it is remember the only horses that count are the ones that make it to the pavement cheers paul