Jump to content
SAU Community

Recommended Posts

haha~

ARC? which one is more expensive? lol, if u think the NRG are good, then we can group buy it~, but where? from ebay? lol

and can u make sure if NRG has 2 bolts or 3 bolts on the mount?

cheers

I'm in Melb.

The other brand i know is ARC. I read the people in US really swears that the NRG are good. but i don't know.

I just don't justify to spend a Sturt bar for nearly AU$500 unless we as Whiteline to make one for us.

  • Replies 54
  • Created
  • Last Reply

Top Posters In This Topic

keep in mind that the NRG bars have issues with touching the bonnet. there is very little room between the engine cover and bonnet

i got mine form STILLEN (www.stillen.com) their bar is by far the best from what i have read and my own experiences. all you need is the 350z engine cover instead of the stock one and it still looks stock :D

keep in mind that the NRG bars have issues with touching the bonnet. there is very little room between the engine cover and bonnet

i got mine form STILLEN (www.stillen.com) their bar is by far the best from what i have read and my own experiences. all you need is the 350z engine cover instead of the stock one and it still looks stock :P

thanks for the info mate~

and pw350gt what do you think?! :)

plenum spacers are rubbish...

all they do is increase the volume of the intake manifold and thus lean out the mixtures across the rev range. that can be done more safely with an ECU tune

i have yet to see 1 pre and post dyno graphy showing a plenum spacer doing anything.

its snake oil until proven otherwise.

dyno proof?

same car, same day, no ECU tuning?

i'm happy to be shown clear evidence

http://www.350zmotoring.com/forums/modific...rawford-v5.html

I've been reading about this a fair bit as well and from what I can see, the guys in the US seem to swear by it and the gains are pretty noticeable.

ok my thoughts..

first, i can't access the dyno graphs as i'm not a member ofthat forum and thus can't downlaod attachments. but assuming they show a gain my though don't really change.

the good points in that thread:

- same car

- same day

- same dyno

the bad points:

- test was not independent (ie it was done by the manufacturer) thus an element of bias

- there was no comparison made against a stock plenum, only against an aftermarket (crawford) plenum

- and finally, the biggest issue, what were the AFRs?

you see, i believe all it does is lean out the air:fuel mixtures by increasing the intake plenum volume of air. if you can show me the air:fuel ratios i think the spacer will just show that the car has leaned out and this accounts for the entire of the power gain

to make my point, a good test would be put on the plenum spacer and check power vs AFRs. then, take it off and put the stock plenum on and tune the ECU to run the same AFRs as it had with the spacer.

so unless the graphs so something like AFRs etc on it, that thread is no proof that the spacer works

  • 6 months later...

i think we should do a group buy to register our interest, then go approach whiteline...hopefully, they should be around $150 as all they are is a piece of strengthened aluminium, 2 bolts, 2 hinges...

anyone here knows a contact at whiteline that can help? i dun wanna be the leader on this buy and would leave it up to a more capable forumnite...

Maybe, at the same time, whiteline can also do all the other various struts and braces for the V35....come on guys, let's band together!!!

you see, i believe all it does is lean out the air:fuel mixtures by increasing the intake plenum volume of air. if you can show me the air:fuel ratios i think the spacer will just show that the car has leaned out and this accounts for the entire of the power gain

to make my point, a good test would be put on the plenum spacer and check power vs AFRs. then, take it off and put the stock plenum on and tune the ECU to run the same AFRs as it had with the spacer.

so unless the graphs so something like AFRs etc on it, that thread is no proof that the spacer works

I can see what you are saying BUT if you believe the gain is because of a greater volume of air making its way into the cylinders, would you also agree that with the same AFR, more air and the corresponding amount of more fuel results in a bigger boom, that is more hp?

After all, that's what a super/turbo charger set up does but to a much greater degree.

I can see what you are saying BUT if you believe the gain is because of a greater volume of air making its way into the cylinders, would you also agree that with the same AFR, more air and the corresponding amount of more fuel results in a bigger boom, that is more hp?

After all, that's what a super/turbo charger set up does but to a much greater degree.

90% thats what an ECU does anyway. Give the correct AFR. Why bother o2 sensors if that's not the case. I'm also very confused by this "without an ECU retune" stuff. I've read it in every counter argument. In order to make any modification 100% beneficial (even running the car on 98 instead of 100octane really should be considered) you need a retune. What should be said is, same car, same dyno, with a retuned ECU without the plenum spacer and a retuned ecu with the spacer. A retuned ECU either way is bias but a test without a retuned ECU isn't going to show any 'true' gains.

A final point on ECU's; If what you say about allowing more air into and through the engine is true and the ECU cant keep up, the same can really be said for any airfilter, intake or exhaust upgrades. I know that contradicts my above statement but 100% 'efficient' upgrade or not we know that, within reason, a freer flowing intake and exhaust will show power gains.

Dont mean to sound like an antagonist just trying to understand what you mean.

/hijack

I know this is an odd (and somewhat nuebie) question but what is so special that makes the bars so expensive? I mean I have a factory bar from an SiR civic here and its pretty simple. It'd probably take me an hour to copy it. Same can be said for the brace on my SW20.

Please correct me but my understanding is that its meant to be a fairly rigid device to prevent body/chassis roll. If this is that case how much technology needs to go into it? Serious question; I'd rather have a friend tig up a chrome one than spend a small fortune on the same thing with a sticker on it.

Regards

nick

I know this is an odd (and somewhat nuebie) question but what is so special that makes the bars so expensive? I mean I have a factory bar from an SiR civic here and its pretty simple. It'd probably take me an hour to copy it. Same can be said for the brace on my SW20.

Please correct me but my understanding is that its meant to be a fairly rigid device to prevent body/chassis roll. If this is that case how much technology needs to go into it? Serious question; I'd rather have a friend tig up a chrome one than spend a small fortune on the same thing with a sticker on it.

Regards

nick

Well if you can get one made for me (a CHROME one) that will fit the v35 with a SKUNK2 plemun spacer i'll pay up to $300. If it's good enough

i can / will organise a group buy for the NRG one if people are interested...

Does fit to a sedan~? :)

i need one. but i have a plemun spaer. So if there is one out there that would fit i'll buy it quick smart

If so, here is the list~

1. V35_Paul

2. Japav

Well if you can get one made for me (a CHROME one) that will fit the v35 with a SKUNK2 plemun spacer i'll pay up to $300. If it's good enough

I did a fair bit of reading last night on the topic. I'll start with a mild steal one and if that works then I'll have my friend tig up a chrome one.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Can perhaps see how the R33 appreciators would think so.  
    • Thanks, I removed the fuse and the relay from the car and made my own circuit with them to test them with a test bulb.  I will look for the wiring diagram and go from there.
    • Jdm DC2R is also nice for a FF car compared to the regular hatches of the time.
    • Now that the break-in period for both clutch and transmission is nearly over I'd like to give some tips before I forget about everything that happened, also for anyone searching up how to do this job in the future: You will need at least 6 ton jack stands at full extension. I would go as far as to say maybe consider 12 ton jack stands because the height of the transmission + the Harbor Freight hydraulic platform-style transmission jack was enough that it was an absolute PITA getting the transmission out from under the car and back in. The top edge of the bellhousing wants to contact the subframe and oil pan and if you're doing this on the floor forget about trying to lift this transmission off the ground and onto a transmission jack from under the car. Also do not try to use a scissor jack transmission lift. You have to rotate the damn thing in-place on the transmission jack which is hard enough with an adjustable platform and a transmission cradle that will mostly keep the transmission from rolling off the jack but on a scissor lift with a tiny non-adjustable platform? Forget it. Use penetrating oil on the driveshaft bolts. I highly recommend getting a thin 6 point combination (box end + open end) wrench for both the rear driveshaft and front driveshaft and a wrench extension. These bolts are on tight with very little space to work with and those two things together made a massive difference. Even a high torque impact wrench is just the wrong tool for the job here and didn't do what I needed it to do. If your starter bolts aren't seized in place for whatever reason you can in fact snake in a 3/8 inch ratchet + 6 point standard chrome socket up in there and "just" remove the bolts for the starter. Or at least I could. It is entirely by feel, you can barely fit it in, you can barely turn the stupid ratchet, but it is possible. Pull the front pipe/downpipe before you attempt to remove the transmission. In theory you don't have to, in practice just do it.  When pulling the transmission on the way out you don't have to undo all the bolts holding the rear driveshaft to the chassis like the center support bearing and the rear tunnel reinforcement bar but putting the transmission back in I highly recommend doing this because it will let you raise the transmission without constantly dealing with the driveshaft interfering in one way or another. I undid the bottom of the engine mount but I honestly don't know that it helped anything. If you do this make sure you put a towel on the back of the valve cover to keep the engine from smashing all the pipes on the firewall. Once the transmission has been pulled back far enough to clear the dowels you need to twist it in place clockwise if you're sitting behind the transmission. This will rotate the starter down towards the ground. The starter bump seems like it might clear if you twist the transmission the other way but it definitely won't. I have scraped the shit out of my transmission tunnel trying so learn from my mistake. You will need a center punch and an appropriate size drill bit and screw to pull the rear main seal. Then use vice grips and preferably a slide hammer attachment for those vice grips to yank the seal out. Do not let the drill or screw contact any part of the crank and clean the engine carefully after removing the seal to avoid getting metal fragments into the engine. I used a Slide Hammer and Bearing Puller Set, 5 Piece from Harbor Freight to pull the old pilot bearing. The "wet paper towel" trick sucked and just got dirty clutch water everywhere. Buy the tool or borrow it from a friend and save yourself the pain. It comes right out. Mine was very worn compared to the new one and it was starting to show cracks. Soak it in engine oil for a day in case yours has lost all of the oil to the plastic bag it comes in. You may be tempted to get the Nismo aftermarket pilot bearing but local mechanics have told me that they fail prematurely and if they do fail they do far more damage than a failed OEM pilot bushing. I mentioned this before but the Super Coppermix Twin clutch friction disks are in fact directional. The subtle coning of the fingers in both cases should be facing towards the center of the hub. So the coning on the rearmost disk closest to the pressure plate should go towards the engine, and the one closest to the flywheel should be flipped the other way. Otherwise when you torque down the pressure plate it will be warped and if you attempt to drive it like this it will make a very nasty grinding noise. Also, there is in fact an orientation to the washers for the pressure plate if you don't want to damage the anodizing. Rounded side of the washer faces the pressure plate. The flat side faces the bolt head. Pulling the transmission from the transfer case you need to be extremely careful with the shift cover plate. This part is discontinued. Try your best to avoid damaging the mating surfaces or breaking the pry points. I used a dead blow rubber hammer after removing the bolts to smack it sideways to slide it off the RTV the previous mechanic applied. I recommend using gasket dressing on the OEM paper gasket to try and keep the ATF from leaking out of that surface which seems to be a perpetual problem. Undoing the shifter rod end is an absolute PITA. Get a set of roll pin punches. Those are mandatory for this. Also I strongly, strongly recommend getting a palm nailer that will fit your roll pin punch. Also, put a clean (emphasis on clean) towel wrapped around the back end of the roll pin to keep it from shooting into the transfer case so you can spend a good hour or two with a magnet on a stick getting it out. Do not damage the shifter rod end either because those are discontinued as well. Do not use aftermarket flywheel bolts. Or if you do, make sure they are exactly the same dimensions as OEM before you go to install them. I have seen people mention that they got the wrong bolts and it meant having to do the job again. High torque impact wrench makes removal easy. I used some combination of a pry bar and flathead screwdriver to keep the flywheel from turning but consider just buying a proper flywheel lock instead. Just buy the OS Giken clutch alignment tool from RHDJapan. I hated the plastic alignment tool and you will never be confident this thing will work as intended. Don't forget to install the Nismo provided clutch fork boot. Otherwise it will make unearthly noises when you press the clutch pedal as it says on the little installation sheet in Japanese. Also, on both initial disassembly and assembly you must follow torque sequence for the pressure plate bolts. For some reason the Nismo directions tell you to put in the smaller 3 bolts last. I would not do this. Fully insert and thread those bolts to the end first, then tighten the other larger pressure plate bolts according to torque sequence. Then at the end you can also torque these 3 smaller bolts. Doing it the other way can cause these bolts to bind and the whole thing won't fit as it should. Hope this helps someone out there.
×
×
  • Create New...