Jump to content
SAU Community

Recommended Posts

so i have an rb20, fully stock, side mount intercooler etc. now when i rev it up and drop the clutch or go to do a hillstart, it nearly dies, then slowely revs back up. i checked for a leak in my piping or bov, couldnt seem to find one? i checked my bov and nothing. thought maybe the spring might be too loose but i dont know? makes an awfully big spooling/sucking noise at even quarter throttle. so i dont know why this could be?

i also have a problem with it missfiring on boost between 3 1/2-5 grand, then pulls fine. i bought new plugs. NGK BCPR6ES. gapped at .8mm. still did it. checked the cam timing, set it at 15 degrees. still does it. now im using an rb25 engine harness, which is a little stupid as now it idles at 1.5-2 grand! but 4th, and 6th injector are the wrong way around on the ecu. so swapped them around. still does it. i'd heard about hairline cracks in the coilpacks, so ill have to check them, but if anyone else knows of any other reasons which it may be doing this i'd love to know so i can try them.

cheers, Ben

Link to comment
https://www.sau.com.au/forums/topic/356125-rb20-problem/
Share on other sites

Spooling noise could be an exhaust leak, anything from the exhaust manifold gasket to broken studs/nuts relating to the turbo.

As for the hillstart thing, could be a slipping clutch or intake related (dirty/bad AFM, intake manifold gasket leak etc)

As for mis-firing, could be the ignitor (if it's the series that doesn't have the ignitors built into each coil), though they usually work fine when cold, it's not until they're warm they start causing problems.

Link to comment
https://www.sau.com.au/forums/topic/356125-rb20-problem/#findComment-5699950
Share on other sites

yeah ill have to check the exhaust manifold for leaks etc. as for hillstart thing, the car had a n/a in it before and the clutch was fine, the clutch in it is supposed to be able to handle turbo, and it drives fine when im rolling if i chuck it into first and give it some stick, only when taking off on a hill. ill have to check the coilpacks and ignitor. and afm and maybe clean out the t/b

Link to comment
https://www.sau.com.au/forums/topic/356125-rb20-problem/#findComment-5700296
Share on other sites

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

    • Im not entirely sure exactly what or where its leaking from, he started to pull the boots to swap to my new tie rods + ends and it just vomited fluid, so he closed em up up, swapped the rod ends to the old rods and let me know so I can figure a solution out, im guessing its all origional as as I passed 103k miles earlier this year im sure its just in need of a full overhual/rebuild anyways.    If i could just yank it off and be good it wouldn't be an issue to ship it out and wait for the turnaround but the guy I work with doesnt really have space to keep my car for a week or two at a time, would rather drop it off and have a replacement ready to drop in
    • What do you mean by "seals"? Internal hydraulic seals (ie, is it leaking PS fluid?) or the rack boots that close the rack onto the tie-rods? Because the former is a rebuild, and the latter is trivial that you or any nearby mechanic could do. Dunno about the cowl. Just buy what you think is required and get anything else you find/break afterwards. Wing? Dunno. Don't like R33s enough to pay attention to them. Mirror glass is just glass (on the surface that you want to polish). Go for it.
    • Hello! Long time lurker, been using the forums to address concerns and questions from afar for a while but I've struggled to find some answers so I guess its about time I made an account and formally asked some more knowledgeable people, since finding local skyline owners is hard (and shops that are knowledgeable or trustworthy to work on 'rare' cars are non existent out where im at, as skylines are quite uncommon to find in the wild around here). So the main 3 questions I have, 1: Steering rack has blown seals, well.. they kind of hold but they are not sealed properly anymore and as my R33 is my DD, i cant exactly rip the rack out and send it off or attempt to fix myself. As most refurb ones are around $1,100 or more shipped, and I have other things I need to work on around the car, I was seeking clarification on whether an S15 rack will more or less bolt right in, and whether a common mechanic could do any other required work to get it to fit. I ask, as I've found a supplier than can sell a manufactured as oem one for around 400, if not I'll likely order a used one from Jacks JDM, and take a risk on the seals there. The second question i have is that im replacing the front wiper cowl and have planned to buy 4 new clips and a new center clip but wasnt sure if there were any other clips that would also need to get replaced while I was at it. Given im sure any that are there now will simply break when I remove the old cowl... Last thing would be a fairly straight forward question, i think. If I manage (strong if, finding one has proven to be a pain) to find a R33 GTR spoiler/wing will it require much modification to bolt to a S2 R33 GTST? I've read the bolt patterns dont match but otherwise would bolt in, only options I have found with much luck is China stuff on ebay and carbonetics, which has a nice $650 shipping fee... so if anyone has any pointers where a US chap could locate one that would be great Random side question as well, the mirrors as I understand are mirror glass, and as im planning to polish my windows from water spots and surface scratches, i was hopeful cerium oxide would be fine for them too, as my research points to, but clarification is always nice. Any pointers would be appreciated, and while I have scoured the internet for answers if I missed a prior post somewhere that may answer these directly please point me towards it, as i must have simply missed it. I have seen a post here or there that has mentioned it, but I usually get 50-50 answers, or half answers... I dont have a lot of fab experience or mechanic experience, outside of hydraulic and pneumatic stuff I did in the military and with how hard it is to source stuff in the US, id rather not wing it and hemmoraghe money lol. Thanks guys! Sorry for the monumental first post haha
    • Yep, there's a very minor drift left that happens a few seconds after letting go of the steering wheel, but not enough to bother me. Enjoying the car still!
    • Got you mate. Check your email!
×
×
  • Create New...