VX s6 issues.

[D_BLOCK]

Heres the deal, new recon, injectors sonic cleaned, leads etc... running Blackstar7000 (ebay) memcal. Had car back since rebuild 1 month, shit fuel economy, high low spots for power, hanging on the ingition for around 4 seconds before it starts.

Dyno yesterday making only 104RWKW not happy, fuel/air ratio on idle @10 should be around 12.5 ideally and blackstar doesnt seem to flash above 135kmh as my stock 6psi pinged up to 10psi then back fired.

So it would seem even with twin 2 1/2 exhaust, growler CAI, and chip this new donk cant even muster its factory at wheels output.

I have had the orig memcal in and its still not up to scratch. What am I missing here?? I highly doubt the factory ECU is any where near its limit as far as mods go, or did I nuke it when I put the conrod through the block on the other engine?.

Options guys, try another memcal or try a haltech interceptor?

Dyno attached hopefully. Disregard the the HP reading , it was setup for an LPG vehicle before mine.

[D_BLOCK]

I dont know why the pic orientation is like that, I rotated it and saved before posting. If anyone with some skills can repost it properly Its much appreciated

[acarmody]

Well the reason you making no power would most likely be because of the Air-Fuel ratio. Did you check if the oxygen sensors are working properly? Damaged AFM could do that.

[D_BLOCK]

Well the reason you making no power would most likely be because of the Air-Fuel ratio. Did you check if the oxygen sensors are working properly? Damaged AFM could do that.

Yeah I had thought the AFR because of the o2 sensor but running the dyno 3 times brought up the erratic fuel spike at the same position each time? Thats why Im leaning towards ECU. Also to test an O2 sensor I need a digital volt metre and a butane torch...neither of which I have handy ( well at least not before monday at work :P )
And yeah I see where your going with the AFM since they do in fact "bounce" of each other so to speak and recalibrate/regulate as needed. I guess im down to Autobarn tommorrow to get some gear o2 sensor, maf cleaner etc.... It just gives me the shits thats all , after forking out all that cash on a new donk im still buying shit.....I should have put in a V8 like i wanted. **** the super 6 Im going big in the next round.

[D_BLOCK]

update.
Just threw some MAF cleaner down its throat , my god what a difference that made even though the heat probes looked clean, still it brought alot of power back. Have an O2 sensor coming overnight since it's puffing faint black smoke and fuel economy still isint crash hot. Hopefully that is all its gonna take.
Another thing that did come to mind was what if an o-ring on the injectors isint sitting right when they went back in?

Failing all that I guess throwing a Haltech at it may be an answer.

[calais_SC6]

cleaning the maf will make a difference, even try cleaning it with Electric CO Contact Cleaner and the idle air control valve, did you change the spart plugs very common problem..

ECU wise get a kalmaker tune that way you keep your stock ECU and get a modified memcal or go to supercharge specialist website L67TORQUE.NET it is specialied for supercharged applications forums....hope it helps..

[D_BLOCK]

cleaning the maf will make a difference, even try cleaning it with Electric CO Contact Cleaner and the idle air control valve, did you change the spart plugs very common problem..

ECU wise get a kalmaker tune that way you keep your stock ECU and get a modified memcal or go to supercharge specialist website L67TORQUE.NET it is specialied for supercharged applications forums....hope it helps..

Good info mate cheers

Yeah I read that contact cleaner is more or less the same as the $24 can of CRC MAF cleaner I got ( I suspect my workshop is going to be a few cans shy come stocktake )
I have too read up on Kalmaker, i've heard heaps of the boys here have it but i really dont know much about them yet. only reason I say Haltech is they have the interceptor model that piggy backs the existing and theres around 130? tune points .

Thanks for that website too mate.

[calais_SC6]

no probs mate, jump on l67 there is alot of handy info about supercharged 6's.

[BT1-355]

speak to delcowizzd, he is a GUN, when it comes to memcals

[D_BLOCK]

New O2 sensor went in and recharged the air filter now its running like shit, I cant bloody win. I fixed one problem and caused another

Rob has also offered to take a look at my memcal to see if its been setup properly but I have to fix this new problem first I guess.

With the O2 sensor I shouldnt have to unplug the battery or anything silly eh? Because now its burbling and got no power. I illiminated it being the cleaned filter by taking it out. Also the guys at the shop tripple checked that it was the right sensor before I left the store?

[acarmody]

Well if you did the air filter properly it won't cause any problems, so maybe you got some bum O2 sensors. Check for a O2 error code.

[chargedvx6]

Somethings not right mechanically I'm tipping. Need some more info on your mods. Is the car intercooled and what sized pulley is it running? What plugs are in the engine and also what were the rebuild specs on the engine?

Also I've never heard of a super 6 throwing a rod.........ever, especially through the block. Do you have more info on what caused the initial engine failure as it may be related to what is going on now.

[D_BLOCK]

Hey guys just got back into town and I tell ya the whole time at work this car was doing my head in. Anyway rechecked, double checked everything I could and guess what it was a dud no# 5 lead.


ChargedVX6 , just standard mods- exhaust, CAI and chip thats it. Im thinking that majority of my bad luck with shit performance is coincidence and a crap memcal.
As for the recond and old engine, the old one physically blew a hole out the back of the block. I didnt get a real good look because it went onto the transport/tow truck as soon as it happened then pretty much got replaced. And when I was calling around the wreckers one of them had said they had seen a couple of thrown legs in the VS range of super6.

[chargedvx6]

What sized pulley are you running on it?

[D_BLOCK]

What sized pulley are you running on it?

Sorry mate, just stock 6psi.

[HARVZ-6]

the l67 deffinatly likes a nice spark to mate good to hear you solved the problem (Y)


can i ask what a recon was worth?

[D_BLOCK]

the l67 deffinatly likes a nice spark to mate good to hear you solved the problem (Y)


can i ask what a recon was worth?

Yeah sure mate, it cost $6200 installed but mine needed all new hoses, manifold face machined, heater tap, injectors soic cleaned, aside from the extras you get all new internals . externally right down to new welsh plugs etc.., chemical clean. And if you get them to do the services you get a 6 YEAR unlimited warranty or in my case cause im not in brissy my mate at ultatune does it and its a 3 year warranty.

[D_BLOCK]

*UPDATE

Right it looks like im back to square one (actually even further back than that) Just when i thought the car was going well it got worse.

New low down...250km to a tank, shit kickdown (auto), apart from the parts above being tested and or replaced this week it had a new air flow meter, cat convertor back flow and heat diode test and dyno.

The new results equal about 90kwrw...not ****in happy by a long shot.

Guys I really need help here im sick of throwing money at this pig, with no results. I simply cant afford it right now since im about to take ownership (touch wood) of my first home.

Heres the latest dyno, note the fuel ratio dropping off the scale...thats my wallet flowing out of the tail pipe.

Side question could the auto be tied into these probs in any way? because the engine builder broke some shit on the box when he pulled the engine out.

[D_BLOCK]

Also there are no error codes logged.

[chargedvx6]

Have you refitted the factory fitted chip back yet? Would be good to eliminate unknown variables.

[D_BLOCK]

Have you refitted the factory fitted chip back yet? Would be good to eliminate unknown variables.

yeah mate i have but i put it right back in, i think its the only thing keeping it above 90kw , whats the chances that the ecu has just given up? I mean everything else has been checked or replaced? And 4 workshops later ( 2 being performance) and still no answers.

[chargedvx6]

Has the fuel pressure been monitored through the rev range?

[D_BLOCK]

Has the fuel pressure been monitored through the rev range?

I certainly hope so since thats why it just went in, i hope they didnt just rely on the dyno air/fuel ratio print out, to rule out pressure problems?

Doesnt super cheap have a pressure gause kit going cheap? what are the pressure ranges through the rev ranges.

Thanks mate.

[D_BLOCK]

OK had the fuel lines pressure tested and that came back fine.
As it sits I have over half a tank of gas and its estimating 150km left. WTF is going on here? All sensors have been replaced.
Am i looking at a new ecu now? C'mon guys we have some smart people on this board, someone must have an idea i havent tried yet.

[Jayme]

you need to get an aldl cable onto that thing, hook it up to a scantool like efilive and post up your recorded log, then we will be able to see what your MAF and fuel trims are reading like. that will go a long way towards figuring it out.