Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.

3.125" pulley and pinging

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Old Apr 5, 2008 | 12:21 AM
  #1  
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3.125" pulley and pinging

Hi everyone!

I have just finished converting my V2 setup to V1 using matty's V1 conversion plate and my 3.125" pulley @ 11 psi. Works fantastic and I have had no problems yet. (Though its only been a few hours - lol)

During the 3 weeks I waited for this kit to arrive, I unplugged the battery so as to not flatten it by the time I wanted to start it again, so i'd assume all the memory was lost on the ECU - because they learn right?

I have noticed a mild amount of pinging at low rpms and throttle around 2k rpm. I noticed my v2 setup do this when I first started it but after a bit of driving it calmed down a little and the pinging disappeared. The new setup seems to be taking a bit longer. Essentially nothing has changed on my fuel setup.

I thought maybe old fuel could have been a problem, so I filled up with the highest octane we have available here of 98 RON. Which I think is the equivalent of your 93. However it is still doing it.

I have an emanage installed and was wondering if I needed to poke more fuel in. Currently it's just installed and is all set to 0's.

Should I put more fuel in? If I wanted to do that on the support tool i'd need to put positive number in right? How much should I do? I just want a basic map for the mean time before I get it properly tuned. Any help much appreciated.

Thanks!
Old Apr 5, 2008 | 02:19 AM
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Hey Mr. Jordan. What exactly is pinging? The SC or the engine? Since we have knock sensors, I don't think you should ever hear our (or any modern-day) engine ping. How does the car feel otherwise? What readings are you getting on your boost gauge (vac. and boost)? As for the e-manage questions, send The Wizard and/or dandymax a PM. But, no, I don't think you need to add more fuel with a 3.125" pulley. Good luck.
Old Apr 5, 2008 | 02:49 AM
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thanks ptatohed. The engine is pinging or pinking as some people call it. Maybe it was because it was a hot day? 30 degrees C (86F). Or maybe it's because the ECU hasn't retarded the timing yet on the ECU. Apparently it needs to do that.

Boost is fine. Measures 15 in.Hg at idle and reaches up to 10 psi in 1st gear.
Old Apr 5, 2008 | 08:50 AM
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I've given it some extra time and it seems the pinging has disappeared.

What I do have on the other hand is the notorious "Marbles in the can" sound coming from my blower.

Obviously I need to put new bearings into my charger?

How urgent is this to do? If you're hearing marbles in the can - how serious is it?

The reason I ask, is because in June I get married. I have no money until after then.
Old Apr 5, 2008 | 09:12 AM
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Originally Posted by jordandalley
Or maybe it's because the ECU hasn't retarded the timing yet on the ECU. Apparently it needs to do that.
I believe the way the ECU works is that it slowly advances timing until it hears knock then backs off to a safe level, not the other way around. Safety first, right? I don't know anything about the tuning of an Aussie/NZ-spec ECU, but I know here at least 91 octane (in our ratings) is recommended. I run it for full timing, and I can't see why you wouldn't, especially with a supercharger.
Old Apr 5, 2008 | 06:54 PM
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Our ECU's are exactly the same as yours. A JWT would hook up no problems. It seems to be ok now, but im worrying about this marbles in the can thing.
Old Apr 5, 2008 | 08:00 PM
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J.D., if you are hitting your appropriate boost, then I wouldn't worry about it. Concentrate on your wedding. If you do need a rebuild, it will still be the same cost whether you do it now or in 6 months from now. How many miles are on your snail? I thought it was new/re-built when you bought it, no? Do you feel good about the oil feed/return to/from the blower? Is your hex bolt for the actual pulley on tight? I forget who it was - BlackCat? - but they thought they had an internal bearing problem and it just turned out that the pulley bolt was loose. Lastly, and this may sound lame, but I have heard various sounds over the years at various times. Just keep monitoring it, the sound may go away. Good luck.
Old Apr 6, 2008 | 04:10 AM
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Thanks ptatohed - once again you're the reply champion

Not sure of the miles on my snail but it is second hand.

It wasn't rebuilt when I got it. The guy included new bearings and oil seals for it. In fact, two sets so I can get it reconditioned with those twice.

It only seems to make the marble sound sometimes. Not all the time. It's non existent some days, mild others and loud sometimes. It just seems to depend on its mood.

I am highly confident of the oil line. I tested it when I first installed the kit by cranking the car for a few secs with the oil line feeding into a plastic bag. It spat heaps of oil out, so I'm glad! Also when I was doing the V1 plate conversion I made the mistake of putting the oil line on the ground and the oil started pooling on the ground in the garage. It goes.

I have had a closer look at my old V2 plate and the mounting stalks to the blower are slightly bent. Don't know how, but i'm pretty sure thats why it was throwing my belt off all the time.

I have to say, the V1 plate is WAAAYYY easier to install as well.

All things seem good. My biggest problem is traction now lol.
Old Apr 6, 2008 | 12:48 PM
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Originally Posted by jordandalley
Thanks ptatohed - once again you're the reply champion

Not sure of the miles on my snail but it is second hand.

It wasn't rebuilt when I got it. The guy included new bearings and oil seals for it. In fact, two sets so I can get it reconditioned with those twice.

It only seems to make the marble sound sometimes. Not all the time. It's non existent some days, mild others and loud sometimes. It just seems to depend on its mood.

I am highly confident of the oil line. I tested it when I first installed the kit by cranking the car for a few secs with the oil line feeding into a plastic bag. It spat heaps of oil out, so I'm glad! Also when I was doing the V1 plate conversion I made the mistake of putting the oil line on the ground and the oil started pooling on the ground in the garage. It goes.

I have had a closer look at my old V2 plate and the mounting stalks to the blower are slightly bent. Don't know how, but i'm pretty sure thats why it was throwing my belt off all the time.

I have to say, the V1 plate is WAAAYYY easier to install as well.

All things seem good. My biggest problem is traction now lol.
So, what was your answer regarding the pulley bolt? "Goodentite"?

I totally concur with you. The V1 plate is much easier to install. I'd say during the first install it's about 75% as hard to install as the V2. That's because you still have to do the one-time install of the coolant hose modification, etc. Then, after that, I'd say it's 50% easier to take on and off.

Yes, traction probs - welcome to the club. I can't power-brake any more. and I chirp second every time now - sometimes a double chirp. :/
Old Apr 6, 2008 | 04:31 PM
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lol yeah.

Sorry I realised I didn't answer that question when I logged off last night.

The pulley is on so tight I can't get it off. Literally i'd need to take it to an engineering place to get it taken off. I had an allen key on it and was levering it with a 3 foot pole and couldnt get it off so I gave up. It's tight.

ptatohed - is your car manual or auto?

So just to confirm. A little marbles in the can sound isn't anything to worry about urgently?
Old Apr 6, 2008 | 06:23 PM
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^ correct...just something to put on the top of the "to do" list
Old Apr 6, 2008 | 06:57 PM
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Yes... the never ending "to do" list

Thanks guys
Old Apr 6, 2008 | 08:39 PM
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Originally Posted by jordandalley
lol yeah.

Sorry I realised I didn't answer that question when I logged off last night.

The pulley is on so tight I can't get it off. Literally i'd need to take it to an engineering place to get it taken off. I had an allen key on it and was levering it with a 3 foot pole and couldnt get it off so I gave up. It's tight.

ptatohed - is your car manual or auto?

So just to confirm. A little marbles in the can sound isn't anything to worry about urgently?

A three foot pole? How'd you keep the pulley from spinning?

Jordan! How can you ask me if I have a 4AT or a 5MT with the 6+ pages of "PRND" talk we've had over on the down under forum????

Yeah, I'd just monitor it but I say if you are making full boost, it can't be that bad. But let's let a few other top .orgers chime in. Never just get one or two opinions.
Old Apr 6, 2008 | 10:16 PM
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LOL! Yeah that is kinda stupid of me... JUST kinda..

Had my dad hold the pulley/blower with a pair of vice grips and rubber matting wrapped around the pulley. Didn't work very well but was amusing all the same.

I'm still a
Old Apr 7, 2008 | 03:44 AM
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^ don't worry about it too much man, unless your oil seals go bad and you get oil spraying out of the blower and into the pipes then out throught the BOV or into the intake manifold...........then it would be time to get the blower rebuilt asap
Old Apr 7, 2008 | 02:57 PM
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LOL! That would be bad. Happened to you? :P
Old Apr 8, 2008 | 10:28 AM
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How's your pinging issue Jordan??

There are four major causes of pinging. Severe engine overheating, carbon buildup, malfunctioning EGR, and incorrect ignition timing.

I'd start by checking the EGR system, the cooling system and the ignition timing. And if none of those things fix it, then you'll have to consider using a higher-octane fuel.

Have you pulled the spark plugs and looked for signs of carbon build-up? There could be excessive amounts of carbon buildup inside the cylinders and on the pistons thus raising the compression ratio and internal temps. The carbon is also known for retaining heat.

Using the EU to 'fix' your problem is not advisable. Once your car no longer pings, only then would I start playing/tuning with the EU.
Old Apr 8, 2008 | 04:48 PM
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Hi Wizard,

Thanks for your help, but after 4 hours of driving the pinging has gone. Since I had the battery disconnected for about 2 weeks I'm sure the ECU lost all memory. It just took a bit longer than usual to get the car to return to a suitable map for boost.

No problems with pinging since the first day I installed the blower.

My spark plugs are the NGK 2-step colder plugs I installed at the same time as the blower, so they're brand new.

I was thinking too, the battery was a bit flat when we first started it. I'm wondering if that could have had an effect on ignition?
Old Apr 8, 2008 | 05:32 PM
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Hmmmm. I find it really strange that it took 4 hours for the pinging to go away.

As for your flat battery, I bet it had nothing to do with the situation.

Still have the marbles in the can sound?
Old Apr 8, 2008 | 08:53 PM
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Yeah a little marbles in the can, but nothing severe. It comes on once or twice a day for 5 minutes out of my one hour of driving.

Pinging was very mild. I just heard a sort of gravelly sound like little stones being dropped on top of the engine. It was pinging a bit for 5 mins. Then for 4 hours after that, it pinged occasionally at low revs. Now it's completely gone and has been for days.

Last night though, I started my car and I heard a little screetch from the belt. The temp was lower than usual and the humidity was high. There was quite a bit of dew aroound. Funny that after a few days with a new belt its become a bit looser. Might have to tighten it again on the weekend. But i'll have to find a new 14mm socket because I lost my last one last time I was tensioning it. It fell down somewhere around the pulleys - lol. I never saw it again. I suspect its sitting on top of the alternator :P It did make me nervous for a few days that it was going to suddenly reappear on the belt and cause chaos, but it never surfaced.
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