Club G40 Forum
Club G40 => General Car Chat => Topic started by: Pyrogav on November 13, 2013, 05:02:03 pm
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Hi I was wondering on changing my injectors on my g 40 with g60 ones. Are they all a strate swap? And we're is best to get them from.
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Bosch injectors yes, few places supply, we supply injectors, just sold out of our 315cc's but getting more in stock soon :)
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Yeah mate very easy to do. They pop up from time to time on here and ebay, just make sure they have been cleaned and tested recently. If needed PPP can do injector cleaning for £35 i think. Or they might have stopped this service now, worth asking them though.
0280150905 is the part number for the stock greens. If your running up to 190bhp the greens will be fine.
Dont forget you will need a chip/map.
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Thank you very much. I think mine is ment to be running about 165 ish. So was thinking if I needed them or not. Then a toothed belt kit. That is all I am wanting to do. Eny one no of any toothed belt kits around.
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PSD ones are usually recommended but they dont pop up that often.
not 100% sure but i think you can get away with using the standard g40 injectors still.
What mods have you got?
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We're able to supply the toothed belt kits with either 60, 65 or 70mm pulley sizes.
We're also doing a 5PK ribbed belt conversion kit which we usually recommend over the toothed belt kit, the ribbed belt kit goes to down to 65mm with 68 and 70mm pulley options as well.
We don't recommend the toothed belt kit as it over stresses the bearings, I've also seen it destroy a charger due to over tensioning the belt. The only upside to it is you can go down to 60mm pulley but this would only be used in very extreme cases anyway! Track/race use etc
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the 5pk belt conversion are probably just as good. And cheaper. Plus they dont f**k the charger up if you hit the rev limiter and rip teeth off the belt.
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ive only had experience of the 5pk ribbed belt on one g40 - the pullies were alloy and the belt slipped much more than stock vee belts!
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haha i thought they would of been better than stock ones. Wonder if that belt slip spray stuff would be any good to use.
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Not on those it wasnt.
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I ran toothies for ages never had any trouble but yet again i never really hit the limiter so thats my experience
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I've hit the limiter a few times and never had a problem. Just luck i think as the belts go 1st before the charger in my case. 3/4 belts this year lol.
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Toothies are only a problem if over-tensioned - set 'em up like a cambelt and they're fine.
Poly-vee belts are very good where the auxiliaries and belt run is designed for them. They need to run with much more belt to pulley contact than you can get on a G40, which is why they tend to slip a lot. G60 tensioner is different. PSD tried them with the G40 M45 Eaton conversions, and could only get them to work reasonably well after adding an additional tensioner. Have a look at any car using a poly-vee from the factory and you'll see what I mean.
As for injectors, just avoid the Ford 'motorsport' 250cc/min injectors which are occasionally sold as G60 items. Their spray pattern is different, and can cock up the fuelling at low load/rpm.
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Toothies are only a problem if over-tensioned - set 'em up like a cambelt and they're fine.
+1
90degree twist with finger and thumb on the longest free section and you'll not have problems. Don't need to be as tight as the v-belts.
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Thats been my problem, over tightening them. They give a really nice whine when tighter though 8)
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why would over tightening toothies wear charger bearings? if thats the case v belts must be doing masses of damage as i used to have to tighten the shit out of my twin vbelts putting alot more stress on the charger bearing than over tightening toothies
if you get me? ran toothies for about 7000 miles now, never had a problem (other than ripping my timing pointer off)
sound nice too :)
never hit the limiter. then again i have a psd chip and apparently the limter is 9k!!! but im a whimp and change at 6500rpm max when hacking it
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The ones I've seen have been on '60's. Toothed belt kits do seem to work better on '40's but still aren't recommended by most specialist (they may sell them) but if they're honest they won't advise them.
The fact is the v-belts will snap long before a toothed belt will, the tensioning setup on a 40 just doesn't let you get loads of tension, hence the toothed kit working ok.
Where as fitted to a 60 a solid tensioner is required, these can easily be over tensioned, pulling the main shaft off centre, it doesn't take a lot but enough will allow the displacer to contact the casings.
So yes it's down to making sure tension is fine but no toothed belt kit I've seen for sale comes with instructions of how to tension bang on (because it's just a trial and error job) but it's not a job that should be!
I'm not going to argue they're crap as they do do a job, but it's just something I'll never recommend and a kit I see as more of a money maker than eradicating an issue, VW tested these chargers in Motorsport long before they hit road cars and didn't come out with using toothed pullies which is where issues of belt slip would of come in.
But each to their own :)
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I was always under the impression that vw motorsport came up with toothed belt kits :s
Im sure i read an article on it somewhere.
The reason i like toothies is you dont have to tension the belt lots so your not stressing the main bearing where as with v belts to get rid of slip they have to be pretty tight.
But as stated each to there own like the ptfe spray subject some swear by it some hate it
Marmite!
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I was always under the impression that vw motorsport came up with toothed belt kits :s
Me too, but the link I had years ago is dead. BarTek and MaxRPM both credit VW Motorsport with inventing them too.
In fairness, PSD used to tell customers buying toothies to tension them up like a cambelt - it's hardly rocket science. They're far superior on a G40 than a poly-vee setup, no slip and easier on the 'charger bearings. Only downside was increased noise and less tolerance to pulley misalignment than a v-belt.
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does anyone have any examples where damage to a g40 could be put down to the toothed belt? I've been around g40s for over ten years and have heard people saying "oh they're bad" but never, ever heard of anything actually happening. I'm with Andy, less tension is easier on the bearings. I'm convinced the only reason VW themselves didn't use such a set up is because of the amount of noise it makes.
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Depends how it's driven surely? I bet snapping the throttle on and off won't do it any good on the toothed pullies
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Depends how it's driven surely? I bet snapping the throttle on and off won't do it any good on the toothed pullies
Why?
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Im with yoof on this as the pulleys are run by the crank rotaion anyway so its not as though its snapping as you put it. Or am i totally off the mark?
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snapping the throttle on and off wont do anything, it doesnt sound the best but going round 25 hairpins one after another up the stelvio is a constant full throttle, snap off, straight back on for like 30 minutes and mine is fine :)
jabba dont recommend toothies as if something in the charger breaks they will carry on and destroy it more where as v belt will slip, but to be honest if the charger was to break and stop turning.. its gonna be pretty annihilated anyway
yeah i agree, toothies are pretty loud, vw wouldnt want that from factory
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I used to quite enjoy driving like the Polo like a cunt. Also grenaded my fair share of decent laders. Some would take it. Some wouldn't. Coincedently, one car I gave death everywhere had multi v's, never blew it's charger. Maybe just a good charger. Maybe the pullies being a tad more progressive. Who know's, as let's face it, no one has done enough miles on 2 equal laders to say realistically. Don't get me wrong they're a large improvement over v belts, and a lovely noise, but how many bearings are there inside a G lader? All running at what sort of tolerences after however many millions or billions of revolutions?