Jump to content
SAU Community

Recommended Posts

Hey Guys,

I am getting my RB26DETT 98 Silvia back tomorrow after being shipped halfway across the country....

Here's the pics and vids.... www.undergroundmotorsports.com

I am a little concerned as the sound of the motor in the vids sounds a little off...

The motor has cams and some head work....

I don't have any experience with the GTR's, so this is the first GTR motor I've heard...

Something sounds a little off to me... But the shop that performed the work feels confident everything is cool....

Opinions are greatly appreciated...

Chris Riggs

Link to comment
https://www.sau.com.au/forums/topic/51067-rb26dett-swap-into-s14-vids-and-pics/
Share on other sites

I had a listen, the only one where you can here it is when it drives off in the car park, it sounded ok to me :D The shots of it running its hard to hear the motor clearly

No smoke coming out of it, thats always a good sign

Just keep a eye on the knock level on the PFC hand controller :)

Chris

Firstly Underground. Excellent choice mate :D

In the second vid I can hear what you're talking about. The car seems to have a lot of trouble idling stably. Could be a tuning problem, or fuel delivery problem (doubtful as it clears up when he revs it), dirty/incorrect spark plugs or an air leak. When you get the car I would whack a fresh set of plugs in it (ensuring they are gapped properly) check all the inlet plumbing (from the MAFs to the turbos, turbos to IC, IC to plenum - everything). See how that goes. The engine seems ok though, think of it as more of an ancillary problem.

Enjoy :)

Richard

My car did the same with the PFC plugged,when at idle it would go up and down always hunting.What I did was go into the Idle settings and bumped the second idle setting up to 1270 I think.Have a go at playing with different settings,you wont do no harm.

Nice beast to :aroused:

On the PFC put more fuel into it, at idle and see what happens.

I had a similar problem with a Rb25, upped the fuel intake at idle and ran heaps smoother. Also is it idling at 750 - 800 or lower? Also is your exhaust straight through? With a hollow cat ? and how many resonators do you have on your exhaust system ?

  • 2 weeks later...

What plugs do I buy? What part #? Obviously nobody here in the states is gonna know RB series part numbers?

Also, what should I gap them at? Or do they come bolt-in from the package?

Chris

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

    • Hi guys, has anyone either purchased or built themselves a rotisserie for their car before? I can only just justify the need for one hence why I should just make one but at the same time, if I make one I can kiss another 4 weeks of potentially productive car working time goodbye because I'm building a bloody rotisserie....  I mainly want it for the application of the body deadener.  Cleaning the old stuff off, priming and then colour over the deadener doesn't worry me, it's just the application using the Schutz Gun that I feel would achieve a significantly better finish painting it side on and keeping the Schutz Gun upright.  I don't think they would work well on the side let alone almost upside down for some areas.  If the product I use (Terosun, etc) could work through a HVLP ok then it might be ok to apply without the rotisserie.   I can get one of these style ones for about $1200 which is pretty good value-     I reckon if I made one it would cost around $500 but it's more the time that it would take is more of a killer than the cost.  They look to hold their value pretty well second hand so I could always sell it after using it and realistically only lose $200-$300 at worst.  Or keep it and buy another project when this one finally sees the light of day... Anyone selling one...? Cheers!  
    • While it is a very nice idea to put card style AFMs into the charge pipe (post intercooler, obviously), the position of the AFM and the recirc valve relative to each other starts to become something that you really have to consider. The situation: The stock AFM is located upstream the turbo, and the recirc valve return is located between the AFM and the turbo inlet, aimed at the turbo inlet, so that it flows away from and not through the AFM. Thus, once metered air is not metered again, neither flowing forwards, or backwards, when vented out of the charge pipe. When you put the AFM between the turbo outlet and the TB, there is a volume of pressurised charge pipe upstream of the AFM and there is a volume of pressurised pipe downstream of the AFM. When the recirc valve opens and vents the charge pipe, air is going to flow from both ends of the charge pipe towards the recirc valve. If the recirc valve is in the stock location, then the section between it and the TB doesn't really matter here - you're not going to try to put the AFM in that piece of pipe. But the AFM will likely be somewhere between the intercooler and the recirc valve, So the entire charge pipe volume from that position (upstream of the AFM, back through the intercooler, to the turbo outlet) is going to flow through the AFM, get registered as combustion air, cause the ECU to fuel for it, but get dumped out of the recirc valve and you will end up with a typical BOV related rich spike. So ideally you want to put the AFM as close to the TB as possible (so, just upstream of the crossover pipe, assuming that the stock crossover is still in use, or, just before the TB if an FFP is being used) and locate the recirc valve at the turbo outlet. Recirc valve at the turbo outlet is the new normal for things like EFRs anyway. In the even of a recirc valve opening dumping all the air in the charge pipe, pretty much all of it is going to go backwards, from the TB to the recirc valve near the turbo outlet. But only a small portion of it (that between the TB and the AFM) will pass through the AFM, and it will pass through going backwards. The card style AFMs are somewhat more immune to reading flow that passes through them in reverse than older AFMs are, so you should absolutely minimise the rich pulse behaviour associated with the unavoidable outcome of having both a recirc valve and an AFM in the charge pipe.
    • Yep, in my case as soon as I started hearing weird noises I backed off the tension until it sounded normal again. Delicate balance between enough tension to avoid that cold start slip and too much damaging things.
    • I'm almost at a point where I feel like changing the alternator. Need to check the stuff you mentioned first though.
×
×
  • Create New...