Jump to content
SAU Community

Recommended Posts

430hp on 18psi. Anymore boost and it starts breaking down again. new plugs and splitfires and still persistant miss above 5900. Cas signal is clean.

Going to swap over coil loom and ignitor unit with a good one to see if it makes difference

MORE PROGRESS!!!

Swapped out the loom and ignitor done a quick check of more boost to see if breaking down.

Put it up to 25psi with pretty much no tuning for power just "ok" mixtures and it pushed out 467hp with a clean miss free rev. So with some tuning it should see 480hp without to many issues

New loom on order, trying to track down a new fair priced ignitor unit.

Slowly getting there

  • 1 month later...

It certainly feels like a long uphill battle. Its just been little shit holding it back.

WELL.....I would love to be posting a dyno sheet picture and figures right now but staying with the current trend with this nightmare.

Started doing runs on car to get everything up to temp while doing the usual pre-checks for tuning, on around the 7th run on decel the radiator fan decided to catch on top tank of radiator tearing out about 10 cooling rows in total. A coolant shower followed, real kick in pants considering radiator only 2 months old.

New radiator and twin thermo fan setup has been ordered so no chance of it happening again.

I think I might be jinxing ourself by posting tune dates so ill shutup about the next tune date and see if luck changes

  • 5 months later...

I second this. It's been a great write up so far. I was sorry to hear about the radiator drama testing your patients.

I'm slowly building myself a similar setup for my 32 and I would love to see the final tune and of course some more video's of it in action!

  • 5 months later...

Long time thread revival from the dead. car sat untouched in the shed for several months as the owner lost some amount of interest. Only so much can take before motivation dies off........BUT!!!!!!. I persisted with him to pull his finger out and get it finished.

Threw a set of plugs, some fresh fuel at it and took it back to the dyno today. Straight away the car was running very lean from 5500rpm onwards. Fuel pressure logs showed 13+psi of drop as revs built. The workshop pulled fuel pump out found some less then fantastic wiring so he repaired that but it didnt fix the issue completely. Going back to the basics checked the fuel filter and found that it was full of some sort of material blocking it. Change the filter and instantly the fuel pressure returned to normal and AFR's started reacting to map adjustments. Only fixed the issue after 5pm today so tomorrow is a new day and things are looking good to give it some hell.

With too much base fuel pressure and no messing with tables it ran 315kws@ 22psi on a lower rev run so with any luck all the constant stupid issues are behind us.

Hoping to be able to get some footage of dyno run for the thread. Its extremely loud in booth so might not work out.

Ive said it countless times before but Results may follow tomorrow!!!!

Log of fuel pressure before.
Untitled_zpsce9e5a9e.jpg

Edited by nick81xd

Great to hear mate, i was just thinking about this car yesterday and how it was getting on, one of my favourite builds on SAU. Would love to be able to have as much knowledge as you, please keep updating as things happen :)

And good luck, i think you need it!

THE MOONS HAVE ALIGNED!!!!!!!!!!!!!!!!

We finally got a result worth talking about last thursday. I was meant to post it that night but was busy helping a mate with his skyline to race at Jamboree yesterday.

Started with a few safe runs to check nothing was playing up with the fuel pressures and all was perfect. Adjusted base pressure and started tuning. The car must of been in a good mood because it behaved......somewhat.

The boost controller to put it honest.......is S#!T. No matter the hook up method/settings its lazy coming onto boost. Put a bleed tap on and its so much faster to build boost. Instead of build boost and holding it just works its way up to boost and hovers around that. It will be replaced very soon with something more reliable.

The standard LINK map sensor has maxed out so we stopped at a total boost pressure of 26psi.

Now to the part everyone has been waiting for all this time POWER FIGURE.

Running 25-26psi on BP98 fuel the car made 507.6hp or 378.5kws for those playing the KW game.

Looking at the boost curve you can see that how lazy it is building boost, there is easily 40hp in the mid-range area to be had by sorting that out.
My own car's engine setup is pretty much identical to this engine internally aside from i run a bigger flowing head, externally i have a ETM manifold setup with a plain GT3582, 4 inch dump and a long runner intake(vs short run greddy intake). On same boost i made 503hp, We overlayed the graph from that over this cars graph and found some interesting results. I have to edit the graph so its a bit easier to follow/read though but it looks like the GTX spools faster then the GT turbo but doesnt have the flow until higher up, the GT makes more power/psi until later. Once new controller goes in that might change also more boost added in.

On the short drive home it just stands up on the tyres in 2nd and 3rd no problem once get a bit more time will take it out for a longer drive.
Did not get any videos unfortunetly. See what the weekend holds might get time.

Dyno graph

Screenshot_2014-08-29-11-57-12_1_zpsb121

  • Like 1

Can put all the blame for having to wait on the owner of the car. It wasnt for lack of trying from me to get it sorted. It was almost getting to the point where i was going to steal the car and take it to get tuned with my own money.

videos possibly this weekend

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

    • Have a look at that (shitty) pic I posted. You can see AN -4 braided line coming to a -4 to 1/8 BSPT adapter, into a 1/8 BSPT T piece. The Haltech pressure sender is screwed into the long arm of the sender and factory sender (pre your pic) into the T side. You can also see the cable tie holding the whole contraption in place. Is it better than mounting the sender direct to your engine fitting......yes because it removes that vibration as the engine revs out 50 times every lap and that factory sender is pretty big. Is it necessary for you......well I've got no idea, I just don't like something important failing twice so over-engineer it to the moon!
    • Yup. You can get creative and make a sort of "bracket" with cable ties. Put 2 around the sender with a third passing underneath them strapped down against the sender. Then that third one is able to be passed through some hole at right angles to the orientation of the sender. Or some variation on the theme. Yes.... ummm, with caveats? I mean, the sender is BSP and you would likely have AN stuff on the hose, so yes, there would be the adapter you mention. But the block end will either be 1/8 NPT if that thread is still OK in there, or you can drill and tap it out to 1/4 BSP or NPT and use appropriate adapter there. As it stands, your mention of 1/8 BSPT male seems... wrong for the 1/8 NPT female it has to go into. The hose will be better, because even with the bush, the mass of the sender will be "hanging" off a hard threaded connection and will add some stress/strain to that. It might fail in the future. The hose eliminates almost all such risk - but adds in several more threaded connections to leak from! It really should be tapered, but it looks very long in that photo with no taper visible. If you have it in hand you should be able to see if it tapered or not. There technically is no possibility of a mechanical seal with a parallel male in a parallel female, so it is hard to believe that it is parallel male, but weirder things have happened. Maybe it's meant to seat on some surface when screwed in on the original installation? Anyway, at that thread size, parallel in parallel, with tape and goop, will seal just fine.
    • How do you propose I cable tie this: To something securely? Is it really just a case of finding a couple of holes and ziptying it there so it never goes flying or starts dangling around, more or less? Then run a 1/8 BSP Female to [hose adapter of choice?/AN?] and then the opposing fitting at the bush-into-oil-block end? being the hose-into-realistically likely a 1/8 BSPT male) Is this going to provide any real benefit over using a stainless/steel 1/4 to 1/8 BSPT reducing bush? I am making the assumption the OEM sender is BSPT not BSPP/BSP
    • I fashioned a ramp out of a couple of pieces of 140x35 lumber, to get the bumper up slightly, and then one of these is what I use
    • I wouldn't worry about dissimilar metal corrosion, should you just buy/make a steel replacement. There will be thread tape and sealant compound between the metals. The few little spots where they touch each other will be deep inside the joint, unable to get wet. And the alloy block is much much larger than a small steel fitting, so there is plenty of "sacrificial" capacity there. Any bush you put in there will be dissimilar anyway. Either steel or brass. Maybe stainless. All of them are different to the other parts in the chain. But what I said above still applies.
×
×
  • Create New...