tm_r33

dead right mate. yer there was 100 au delivered 32 gtr's. my mate currently has one locked away in his shed. id be suprised if there was 50 left though and the remaining ones probably wont come up for sale too often

yer rolls your right mate. open difff will turn each half shaft in opposite directions. a worn lsd with fark all pre load will do the same thing. a shimmed diff with a jag load of preload will turn both half shafts in same direction

yeah watanabes. mate had a set on his 86 and then got the rota look alikes powdercoated white for his s13.

back to back dyno runs with different sets of cams can give some idea of how a certain cam may/will behave but i would not rely to much on the dyno results. on road or track testing will provide more accurate data imo. sure if you have two pretty close sets of cam shafts but one set has longer duration then sure.. it may make some more power up high.. BUT many other factors will effect how it performs in real life applications. lobe profile. ramp rate. small/large throttle inputs. initial rpm/initial boost at point when WOT is applied. load (higher gear/uphill) as a rough rule of thumb.. bigger duration will offer more top end power but will come at the price of low down response. so then you can play with lift as well. in my case i didnt go to crazy on duration but opted for huge lift. all this was done in the quest to keep the car snappy on the throttle if the rpm's get a little lower but we still needed the thing to breath and bigger lift obviously helps with this also. As far as i can tell.. big lift usually offers wins across the board but comes at the cost of needing to grind some meat out of your head and needing different valve springs.

yer i thought 33 gtst was 8.5 but apparantly not. its duration that will help top end majorly

gtt has less duration than gtst to close up the valve overlap and keep to emisions standards i beleive. but the extra lift was probably thrown in to still let it breath well enough.

yes they do have different camshaft profile. they change a fair bit between different rb25 models. specs are as follow..... R32 Skyline RB25DE Camshaft duration 240°in, 232°ex lift: 7.8mm in, 7.3mm ex.... 32 R33 Skyline RB25DE Camshaft duration 240°in, 240°ex lift: 7.8mm in, 7.8mm ex... 33 gts RB25DET Camshaft duration 240°in, 240°ex lift: 7.8mm in, 7.8mm ex ... 33 gtst RB25DE NEO Camshaft duration 236°in, 232°ex lift: 8.4mm in, 6.9mm ex... 34 gt RB25DET NEO Camshaft duration 236°in, 232°ex lift: 8.4mm in, 8.7mm ex... 34gtt u can obviously apply these to other nissan models like stageas etc. all you need to know is if your neo or non-neo and if your turbo or non turbo.

you related to plan b or coolcat?

yer pretty sure neo is still 9:1. the differences were in the head and mainly so nissan could still meet emisions standards. standard cams in both cars? because 33 and 34 have different cams?

Hmm ignore that. It doesnt sound like fueling prob. Drop exhaust at cat and do a run. Measure boost before and after cooler core. If neither give any answer id be looking at the front of yoir turbo.

is there any reason why this turbo is running factory compressor cover? Do u have another comp cover that came with the turbo? Im slightly confused sorry lol. Is this one of those turbos that people build from bits and sell as a high flow? Im asuming your keeping an eye on injector duty cycle and all that. And doing dyno runs with 98?

make sure you drop the oil too mate. if a jag load of fuel has been in the cylinders then no doubt a small amount must of leaked past the rings and contaminated the oil.

15 kw could be the difference between cat convertors on each car. or bearing and ring condition. or plenty of other things. drop the exhaust at the cat and do a run perhaps. check if theres a pressure drop across the cooler core also. ATR43G3 means nothing to me. what is a comparable garret turbo? or hks or similar? .82 rear should not be holding u back i would not of thought but i dont know the other specs of said turbo. if your turbo is getting towards the end of its efficent flow range then this could also prevent kw's climbing as psi is increased. in the same way that a factory turbo at 15 psi will be shit compared to say a gt30 at 15 psi

why is every one changing to wasted spark set up? oem coil packs at race track temps with big boost and high hp can work well. If your 15 - 20 year old coil packs are failing its because they are old and your car hasnt really done 80 000 km's its done 200 000. NOT because nissan designed a bad ignition system. Its a high performace engine. they have been delivering spark to a boosted chamber for at least one decade. your car probably hasnt done what the odo shows. your car probably sat at a yard or warf in japan for months on end whil everything went brittle. the copper in your coil pack harness is old ive had great sucess with oem coils in multiple engines/cars yes rb engines do suffer from misfire sometimes but there is no prob with coil on plug system.

my first thought was exhaust cant flow any more power. but as ash mentioned cooler core could pose a restriction as well. what turbo and what size rear?

welcome. please elaborate on "busted awd" lol

just stay away from anything with ridiculous vents or fins or sharp angles in it . they look shit

Yer the only part I like is the front bar because it looks similar to factory. I dont personally run a body kit and the car in those pics isnt doing the kit an favours. Ugly colour with ugly wheels in a bad bad offset

http://forum.jdmstyletuning.com/showthread.php?21928-R33-Skyline-Bodykits u mean this kit? i looked for one a while bak and couldnt find one lol

NGK laser platinum will be fine, they generally have a longer service life than copper. thats the difference. they have a slower wear rate and are slightly more resistant to fowling i believe. i always use copper plugs. i dont have to pay for plugs but im still happy with copper ones. the longer service life of iridiums or platinums etc does not come into the equation for me tho because i do the plugs every 5000 anyway lol i use bcpr7es from memory.

done deal mate. pm me your address and ill send you through my bank details if you would like

yer you would have to change driveshafts as gtr is 6x1 and gtst is 5x1 and yer posibly hubs too

Just had a thought... 33 has 12 mm crown wheel bolts and 32 has 10 mm. so you cant put a crown wheel from one onto the center of the other from memory. if u want this 33 diff in your car I would just put 32 cover plate on the back of it and have a play around at the front ears to mount it. dont bother building a bastard from two different diffs if you can help it.

I got a pair of series 2 33 gtst factory cams. Dont really wanna seperate but u can have the pair for 100 bucks.

Its a rb30det track car with 3 inch piping. I have no intention of using a 65 mm item lol