Jump to content
SAU Community

Recommended Posts

yeah i tried all that Ben and Joel,

I just took it around the block then and it drives ok, feels a bit sluggish down low but starts to go hard by about 4000rpm, but i dont want to take it to high RPM or drive it too much just incase... but i drives, but will not hold idle.

  • Replies 285
  • Created
  • Last Reply

Top Posters In This Topic

HEY bbenny

just a thought but in the process of taking it all apart you may have accidently disconnected 1 or a few vacuum hoses...i know when i was mucking around puting in a catch can i knocked a vacuum hose and it did the same thing...idle would drop then die....similar to when you have a stock RB20DET and disconnect the plumb back pipe from the BOV

just a thought..maybe check all ther hoses

Aaron

yeah i tried all that Ben and Joel,  

I just took it around the block then and it drives ok, feels a bit sluggish down low but starts to go hard by about 4000rpm, but i dont want to take it to high RPM or drive it too much just incase... but i drives, but will not hold idle.

Wierd?? sounds like a vacum leak, or something like that. Is your vacum lines hooked up to your BOV? Might pay to get a timing light and check the timing??

Does it blow alot of black smoke out of the exhaust at idle? That is a sure sign of a vacum leak.........

i played with the idle, but no adjustments made any difference.

i did pull the throttle body off for the installation but i dont think that would be the cause.

It runs fine when you give it some throttle.

the only thing i see responsible is the stiff in. cam...

i have tried just about everything else there is!

i played with the idle, but no adjustments made any difference.

i did pull the throttle body off for the installation but i dont think that would be the cause.

It runs fine when you give it some throttle.

the only thing i see responsible is the stiff in. cam...

i have tried just about everything else there is!

does seem odd, thats why I thought of the throttle, maybe its not open enough under idle or something? could explain why its running fine when the throttle is open a little? just a thought, as other wise I have no idea mate, sorry

You checked base timing yet? what is that set to?

I can't really see how a cam that is harder to turn (but is also is just as hard when the stock cam is in place) would be the culprit

well it was noticably harder to turn...

but then again that could be due to some of the lobes compressing a valve or two...

I can only point to a few possibilities - either the in. cam is not turning free enough, as we have discussed.

or the posibility that the timing belt jumped a tooth when i started the engine

however i did turn the engine manualy 3 revolutions and check the timing marks on crank and cam pulleys...

Its frustrating!

I will disasemble the whole damn thing again and see if i find anything.

Yep i think it is.

Ive decided to bail on the cams as i just cant afford aftermarket management.

otherwise it would be one kick-ass upgrade, i mean 25rwkw average increase for $300 is pretty damn impressive!

so im a little dissapointed i cant pull it off with the std ecu

i can confirm it is the ECU flysky. because i checked and tried everything, there were no other causes.

and SydneyKid has done several running a PFC with no problems and considerable gains.

no probs with standard cams joel

Cams and cam gears are in... only thing is i need someone i Melb that has a blown RB20 that i can steal some parts off.

I need the cap for cylinder no.6 on the inlet cam...as one of the stud has siezed in the aluminium cap, i was lucky to get it unbolted from the head without snapping or seizing...

Anyone in Melb able to help me out, or know of a friend/workshop that can help me without woth one (will need thw two stude that go with it as well.

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

    • Thanks for all that information I appreciate it. To answer your questions: - Yep that's what I mean. These guys are professional painters to so I must be missing something. It's a bit hard to explain. - With the primer landing on clearcoat, I make sure that the surrounding clearcoat is scuffed to 240 grit as my epoxy primer says that I only need to sand the area to 240 grit. - Yeah so similar to the first question, assuming that the paint landed on the unscuffed clearcoat because I've seen that happen. - Yep I want to prep the surface in that order. Only reason because epoxy primer will protect it from rust and I need that atm with this crappy Sydney weather. I think I was worried about time, if I try to put the filler down but screw it up somehow and I don't have time to sand it off and reapply it then need to put primer later that it might start to rust again so I wanted to apply the primer as quick as possible to not deal with rust.  - My car has heaps of small dents, that definitely need filler but are you also sanding the area to 240 grit to fill it in with filler? I always thought you have to go to bare metal for filler to stick but that contradicts the point then that you can put filler on epoxy primer.  If you aren't going to bare metal, AND not putting epoxy primer how are you making the dent stick to the paint?
    • I did. I went to a suspension guy and he told me because I don't have adjustable camber arms it's the reason why my car veers towards the left if I take my hands off the wheel but if I drive my other every day car and take my hands off the steering wheel it goes completely straight. I think it's common with Skyline's. In order to fix the problem, I likely need gktech camber arms then nismo bushes since I have poly bushes atm, then a wheel alignment after that. With my car if I take my hands off the steering wheel on a really bumpy road before stopping at a light I have to hold my steering wheel somewhat tight otherwise my car will legit just go completely in the other direction quite quickly and I'll slam into something lol instead of stopping straight. I Believe this YouTuber had the same issue and fixed it with gktech arms. At timestmap 6:05 he talks about how the car doesn't veer anymore after installing these arms.  
    • hello! does anyone have a schematic that shows how to test the blower motor resistor for the vac system? i believe the part# is 27761-15U00. I think the resistor is toast, but would like to be able to test it somehow before i embark on the journey to find a new one. cheers! 27761-15U00
    • I don't know the answer to this, but did you have a look at the parts diagrams on amayama.com and see what they list around it for your car? As an example this should be it on my car. That's how I would check for required clips and things like that. But, I take no responsibility for you ending up with a box full of random OEM hoses, washers and clips after going down that path a few times. This definitely has never happened to me  
    • Most driving should* be done on one side of single lane divided roads. In the RHD world, you drive on the left side of the dividing line and the road is probably cambered equally on both sides. So your side of the road slopes away to the left. The same is true for the LHD world, just everything swapped to the other side and opposite slope. With a perfectly neutral, straight ahead wheel alignment designed to drive straight on a perfectly flat surface (or at least one that is level on the left-right axis, even if it has some slope in the fore-aft axis) you will not be able to drive on a cambered road without the car wanting to drift down the camber. You will need to add steering input in the opposite direction all the time. This is annoying. The solution has always been to set the camber and/or the caster to produce a continuous turning force in the opposite direction of the camber. The car will drive straight on the kind of camber for which it was set up, presumably as described in the top paragraph. But.... when the car is set up this way, as soon as you get into a lane, usually on a multi-lane surface road or highway, where the camber is not as presumed during setup, the car will usually pull to one side. In the RHD world, if you are in the fast lane on a big divided road, you are probably on the opposite camber compared to what the car was set up for (ie, sloping down to the right) and the combination of the setup and that camber will make the car want to go right pretty hard. Even a perfectly flat lane will tend to want to go right. There's no getting around it. Civil engineers who know their stuff (which is not an assumption that can always be made) will attempt to keep the variation in camber across a multi-lane road as small as possible, and if they can will attempt to make the fast lane as close to flat, or even cambered in the same direction as all the other lanes. This takes a lot of planning for drainage, control of levels, ability to deal with the elevation changes that occur at road junctions, etc etc. So it's not trivial to get it right. When they do make it work, then the annoyance is reduced, along with tyre wear, fuel consumption, etc. In theory, the civil engineers are supposed to worry about those aspects of road design also. * This used to be true, but now with very large highway systems, even just multi-lane surface roads running everywhere, it is less true now than it was, but the old assumption is the basis for describing the phenomenon, so let's just run with it for the moment.
×
×
  • Create New...