http://www.oddunit.com/engine-f1/-t1.htm For all your engine witterings....Sponsored byvar gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));try {var pageTracker = _gat._getTracker("UA-10032049-1");pageTracker._trackPageview();} catch(err) {} Fri, 06 Aug 2010 12:08:27 GMT 10 http://i98.photobucket.com/albums/l279/mrbeige/cooltext403300291.jpg http://www.oddunit.com/engine-f1/-t1.htm http://www.oddunit.com/engine-f1/what-can-you-do-to-really-improve-a-cylinder-head-t427.htm jmc Just about to pick up a spare cylinder head for my G60 (right price, right place, in case I ever need a spare) and it go me wondering what it would be possible to do to one to make it the best efficiency I can for a G60. Mine is currently ported and polished, and is definately a good head - a G-werks fast road head, no change in valve size from original from memory. The inlet manifold has not been port matched to the head, nor had the inlet manifold been flowed. Cam is a schrick 268/276 assymetric. ... Engine Fri, 06 Aug 2010 12:08:27 GMT http://www.oddunit.com/engine-f1/what-can-you-do-to-really-improve-a-cylinder-head-t427.htm#6324 http://www.oddunit.com/engine-f1/what-can-you-do-to-really-improve-a-cylinder-head-t427.htm http://www.oddunit.com/engine-f1/replacing-valve-guides-and-stem-seals-on-vr-head-t425.htm mrbeige
I read an article in PPC on how to do valve guides, using a heat gun and a lathe turned bolt with a shoulder on it, to smack the old ones out, and then sticking the new ones in a freezer. How easy is it really?]]> Engine Sun, 01 Aug 2010 21:00:45 GMT http://www.oddunit.com/engine-f1/replacing-valve-guides-and-stem-seals-on-vr-head-t425.htm#6305 http://www.oddunit.com/engine-f1/replacing-valve-guides-and-stem-seals-on-vr-head-t425.htm http://www.oddunit.com/engine-f1/29-or-not-29-that-is-the-question-t424.htm mrbeige Right, so end of August I will finally be doing the chains on the Golf, but I have a suspicion that the AAA engine's valve guides and stem seals are fubarred. On overrun I get a puff of smoke from the exhaust (noticed it in Dartford tunnel, when doing the obligatory 'windows down and gunning it in 2nd' manoeuvre ). Furthermore, it's using a fair amount of oil, perhaps a litre every 1500miles. I've had the offer of Mic's ABV that has recently come out of his Corrado, and was wondering if it would ... Engine Fri, 30 Jul 2010 21:00:32 GMT http://www.oddunit.com/engine-f1/29-or-not-29-that-is-the-question-t424.htm#6301 http://www.oddunit.com/engine-f1/29-or-not-29-that-is-the-question-t424.htm http://www.oddunit.com/engine-f1/mounting-egt-probes-t337.htm jmc I've got a Defi EGT probe to fit to my stainless 4 branch manifold. Defi recommend simply drilling and tapping a hole in the manifold (and to do it down near where the primarys connect), but I've also seen ones which have a welded on boss on the manifold and placed up near the cylinder head. Is there a right / wrong way to do this, and is there anything I need to look out for? Engine Mon, 03 Aug 2009 13:08:50 GMT http://www.oddunit.com/engine-f1/mounting-egt-probes-t337.htm#4442 http://www.oddunit.com/engine-f1/mounting-egt-probes-t337.htm http://www.oddunit.com/engine-f1/2ltr-abf-into-a-corrado-t422.htm Yandards As usual my long term plans have changed again, with the new ECU I figure it is easier to use the 2ltr ABF block as it already contains all the required sensors for crank and cam positioning as well as giving me a 200cc increase in displacement. So given the ABF is taller than a KR or 9A unit but that it is a straight fit into a Mk 2 will it fit under my early low bonnet? My gut reaction is it will as I don't need the manifold space on top of the block, anyone got any measurements for the ... Engine Thu, 03 Jun 2010 14:02:26 GMT http://www.oddunit.com/engine-f1/2ltr-abf-into-a-corrado-t422.htm#6242 http://www.oddunit.com/engine-f1/2ltr-abf-into-a-corrado-t422.htm http://www.oddunit.com/engine-f1/conrod-small-end-offset-bushing-t351.htm dirtytorque Can't get through to stealth at the moment.I believe they use to do it?!!]]> Engine Fri, 21 Aug 2009 12:37:30 GMT http://www.oddunit.com/engine-f1/conrod-small-end-offset-bushing-t351.htm#4677 http://www.oddunit.com/engine-f1/conrod-small-end-offset-bushing-t351.htm http://www.oddunit.com/engine-f1/turbo-installs-n-stuff-t379.htm dirtytorque Is a BOV the same thing as a wastegate?
Hopefully the questions will get less tupid with time.

grazie.]]> Engine Wed, 21 Oct 2009 21:31:40 GMT http://www.oddunit.com/engine-f1/turbo-installs-n-stuff-t379.htm#5178 http://www.oddunit.com/engine-f1/turbo-installs-n-stuff-t379.htm http://www.oddunit.com/engine-f1/compression-t387.htm mrbeige Ok, so we all know that if you stick a turbot on an engine, you need to lower the compression. My question is....why do you need to lower the compression? You can fit a Vortech charger to a VR without lowering compression, so why not a turbot? Engine Tue, 24 Nov 2009 22:58:27 GMT http://www.oddunit.com/engine-f1/compression-t387.htm#5492 http://www.oddunit.com/engine-f1/compression-t387.htm http://www.oddunit.com/engine-f1/which-engine-is-best-t363.htm junkie Whilst im planning what car to build i keep thinking about rear wheel drive and all sorts of different engines. So do you think 20v turbo as people say its the new cossie engine or its best to stick to the original classic engine thats a cossie engine of course. Any other suggestions welcomed. Engine Mon, 31 Aug 2009 00:14:35 GMT http://www.oddunit.com/engine-f1/which-engine-is-best-t363.htm#4768 http://www.oddunit.com/engine-f1/which-engine-is-best-t363.htm http://www.oddunit.com/engine-f1/v5-balancing-t390.htm mrbeige
Discuss......]]> Engine Sat, 28 Nov 2009 01:21:54 GMT http://www.oddunit.com/engine-f1/v5-balancing-t390.htm#5522 http://www.oddunit.com/engine-f1/v5-balancing-t390.htm http://www.oddunit.com/engine-f1/con-rods-lightening-t388.htm mrbeige Right, just seen a build thread on another forum, where a guy had filed off some of the metal off the beam of a G60 rod. Surely this would reduce the strength of said rod? Engine Tue, 24 Nov 2009 23:01:16 GMT http://www.oddunit.com/engine-f1/con-rods-lightening-t388.htm#5493 http://www.oddunit.com/engine-f1/con-rods-lightening-t388.htm http://www.oddunit.com/engine-f1/stock-sized-lightweight-pulleys-good-or-bad-t405.htm jmc Given the weather has been keeping me of the car for a bit, I've been hunting round for new toys, and come across some people using stock sized but lightweight pulleys. However there seems to be as much bad press for these as good. I can understand how underdrive crank pulleys would be bad for the G60 as it would reduce the charger speed, but what about light weight versions in standard sizes? Is the harmonic damper really that crucial as I've had the engine rebuilt and balanced? Answers ... Engine Tue, 19 Jan 2010 14:04:23 GMT http://www.oddunit.com/engine-f1/stock-sized-lightweight-pulleys-good-or-bad-t405.htm#5810 http://www.oddunit.com/engine-f1/stock-sized-lightweight-pulleys-good-or-bad-t405.htm http://www.oddunit.com/engine-f1/weird-engine-mount-experience-t419.htm jmc Just gone from a solid front engine mount (which scarily enough wasn't bolted down tight) and a stock VW gearbox mount, to Vibrartechnics front and gearbox mounts, and the car is now vibrating much more low revs. I thought this change wouldn't have made a huge difference, so I'd be interest to hear peoples thoughts on whether this was to be expected - does uprating the gearbox mount make a huge difference to vibration? I can't believe chnaging from a solid mount (albeit not bolted down properly) ... Engine Wed, 31 Mar 2010 09:16:35 GMT http://www.oddunit.com/engine-f1/weird-engine-mount-experience-t419.htm#6125 http://www.oddunit.com/engine-f1/weird-engine-mount-experience-t419.htm http://www.oddunit.com/engine-f1/oil-cooling-on-a-16v-track-car-t384.htm mrbeige Just gauging peoples thoughts on oil coolage when using a valver on the track. I suspect that it would be a good idea to fit a oil cooler rad, but would it be better to retain the heat exhanger plate, or remove that completely, and just have a sandwich plate and remote rad? Engine Thu, 12 Nov 2009 09:14:56 GMT http://www.oddunit.com/engine-f1/oil-cooling-on-a-16v-track-car-t384.htm#5395 http://www.oddunit.com/engine-f1/oil-cooling-on-a-16v-track-car-t384.htm http://www.oddunit.com/engine-f1/twin-chargingsuper-and-turbothe-superbocharged-t319.htm mrbeige Ok, so we've talked a little about twin turbo setups, now, I think we need to discuss supercharger and turbo setups! The reason I ask, is because a few people have said that twin turboing a 16v wont give me what I want, and that's plenty of torque low down, and I still fancy a challenge So, for example, take a 2.0l 16v engine, strap an Eaton M62 and say a GT28 to it. how would you go about routing the charge? Into the Eaton first then on to the Turbo would be the most logical, but once ... Engine Wed, 17 Jun 2009 16:35:11 GMT http://www.oddunit.com/engine-f1/twin-chargingsuper-and-turbothe-superbocharged-t319.htm#4139 http://www.oddunit.com/engine-f1/twin-chargingsuper-and-turbothe-superbocharged-t319.htm http://www.oddunit.com/engine-f1/increasing-compression-in-a-n-a-motor-t378.htm mrbeige Just been thinking about something Tom said to me the other day about one guy fitting a mk4 head gasket to a VR. He said that it increased compression ratio by 0.5, and that led to an improvement in torque. I been thinking about why that was, and determined that all it does is improve thermal efficiency, and thus make more from the existing fuel air mixture. I did wonder what would happen if you were to increase the compression ratio a further 0.5. Do you think that would improve things still, ... Engine Tue, 20 Oct 2009 14:03:55 GMT http://www.oddunit.com/engine-f1/increasing-compression-in-a-n-a-motor-t378.htm#5164 http://www.oddunit.com/engine-f1/increasing-compression-in-a-n-a-motor-t378.htm http://www.oddunit.com/engine-f1/alfa-multiair-engines-t377.htm Toad Morning. Been reading the latest Evo magazine, im which they looked at the new cloverleaf Alfa Mito which has a new 1.4 engine featuring what they call MultiAir. It features a head with vaves laid out like a DOHC head, it's only 1 camshaft though with lobes for both inlet and exhaust, sat above the exhaust valves. It has a set of pushrods from the inlet lobes to the front of the head. These pushrods work on what is effectively a set of modified hydraulic tappets, there is an electronically ... Engine Fri, 16 Oct 2009 19:17:52 GMT http://www.oddunit.com/engine-f1/alfa-multiair-engines-t377.htm#5136 http://www.oddunit.com/engine-f1/alfa-multiair-engines-t377.htm http://www.oddunit.com/engine-f1/19995-spec-us-vr6-inlet-manifold-t375.htm Toad
As far as I know the late US VR6s got a plastic inlet manifold with variable geometry, much like the R32s and 24Vs. Now, this should be retrofittable to the older VRs, I assume they just need an adaptor for the throttle body, and a little bit of piping making up?

Does anyone know anything about these? Do they suffer from the same flap fatigue and engine ingestion issues that the BMWs do?]]> Engine Sun, 11 Oct 2009 21:51:41 GMT http://www.oddunit.com/engine-f1/19995-spec-us-vr6-inlet-manifold-t375.htm#5097 http://www.oddunit.com/engine-f1/19995-spec-us-vr6-inlet-manifold-t375.htm http://www.oddunit.com/engine-f1/spark-plugs-platinum-t373.htm Toad
I just bought a new set of spark plugs for the VR, looked at various options and decided on the recommended BKR5EKUP ones, which have platinum tips, now I could have bought the normal ones, or the iridium versions, but I wasn't entirely sure, and as I won't be changing them for some time, I thought I'd spend the extra £20.

But are platinum tips worth it? Why do they make a difference? Is it worthwhile looking at platinum tips on other spark plugs?]]> Engine Tue, 06 Oct 2009 20:21:47 GMT http://www.oddunit.com/engine-f1/spark-plugs-platinum-t373.htm#5037 http://www.oddunit.com/engine-f1/spark-plugs-platinum-t373.htm http://www.oddunit.com/engine-f1/larger-injectors-or-rising-rate-fuel-pressure-reg-t366.htm mrbeige Right, I was thinking the other day about the above, and pondered on whether smaller injectors with a rising rate fuel pressure reg would give better results than larger injectors? I would expect that idle would be much improved doingthe former, and still being able to deliver the larger quantities of fuel when required. Does that make mapping difficult though? Will a rising rate fuel pressure reg only give you a benefit when running standard ECU rather than aftermarket? Are standard fuel rail ... Engine Tue, 08 Sep 2009 11:06:15 GMT http://www.oddunit.com/engine-f1/larger-injectors-or-rising-rate-fuel-pressure-reg-t366.htm#4829 http://www.oddunit.com/engine-f1/larger-injectors-or-rising-rate-fuel-pressure-reg-t366.htm http://www.oddunit.com/engine-f1/removing-piston-from-conrod-t349.htm dirtytorque So how do I go about the above?
Any special tools?
ta.]]> Engine Thu, 20 Aug 2009 08:30:07 GMT http://www.oddunit.com/engine-f1/removing-piston-from-conrod-t349.htm#4610 http://www.oddunit.com/engine-f1/removing-piston-from-conrod-t349.htm http://www.oddunit.com/engine-f1/spark-plugs-damp-and-smelling-of-fuel-t364.htm jmc Just whipped my plugs out to have a look. 2 are fine and dry, but 2 were slightly dampy and smelling of fuel. Now I am assuming this is not particularly good, but I've not noticed any change in performance and the car is not feeling any different. Any thoughts as to what could be causing this folks? Engine Mon, 31 Aug 2009 12:08:52 GMT http://www.oddunit.com/engine-f1/spark-plugs-damp-and-smelling-of-fuel-t364.htm#4769 http://www.oddunit.com/engine-f1/spark-plugs-damp-and-smelling-of-fuel-t364.htm http://www.oddunit.com/engine-f1/vag-com-adaption-values-t355.htm Toad
Was fiddling with both Fay's and my VR today, and while looking at the measuring blocks, I noticed that my idle adaption was above 1, somewhere near 1.18, but Fay's was below 1, about 0.95 or something.

Now I know that 1 is stoich, i.e. AFR 14.7:1, so, an adaption value of above 1 indicates that the car is running rich, and below 1 it's running lean.

I.e. above 1, it may have an air leak after the MAF?

Is that right?]]> Engine Sat, 22 Aug 2009 22:16:28 GMT http://www.oddunit.com/engine-f1/vag-com-adaption-values-t355.htm#4706 http://www.oddunit.com/engine-f1/vag-com-adaption-values-t355.htm http://www.oddunit.com/engine-f1/turbo-rebuilding-t341.htm mrbeige Ok, so I now have my Garrett T3 turbot, but it needs a rebuild. Is this something that I can undertake myself? I know you can buy turbo rebuild kits, but will it be necessary to get the turbo balanced after fitting the kit? If I can do the rebuild myself, where is te best place to buy the kits from? Engine Mon, 10 Aug 2009 13:17:14 GMT http://www.oddunit.com/engine-f1/turbo-rebuilding-t341.htm#4480 http://www.oddunit.com/engine-f1/turbo-rebuilding-t341.htm http://www.oddunit.com/engine-f1/fuel-lines-t301.htm VEEDUBBED What kind of fuel lines would support 500+ponies??,we're always hearing
about this kind of mega turbo being fitted,that kind of piston/rod being installed,8000cc injectors,NOS and all the other bollox.
Strangely enough i rarely see uprated fuel lines mentioned,twin fuel pumps yes but
no info. on bigger lines,bigger barbs,unions etc,etc.
I'm utterly convinced that the O/E 'raddo's fuel line won't cut it...
What do you think?.]]> Engine Wed, 22 Apr 2009 12:38:19 GMT http://www.oddunit.com/engine-f1/fuel-lines-t301.htm#3868 http://www.oddunit.com/engine-f1/fuel-lines-t301.htm http://www.oddunit.com/engine-f1/quick-fuel-pump-question-t348.htm ctwg60 Can someone explain if the VR/G60 4bar fuel pump 1H0919615Q produces 4 bar maximum or 4 bar minimum and what a 3 or 3.5 bar rising rate bosch fpr will produce with 0.5 bar of manifold manifold pressure. It's a lazy question I know but there you go. Engine Wed, 19 Aug 2009 20:22:28 GMT http://www.oddunit.com/engine-f1/quick-fuel-pump-question-t348.htm#4606 http://www.oddunit.com/engine-f1/quick-fuel-pump-question-t348.htm http://www.oddunit.com/engine-f1/automatic-g60-ecu-and-tb-t352.htm ctwg60 An Automatic G60 Corrado uses a different ECU and also a Throttle POT. I think the POT is used by the ECU to tell the transmission to drop a few gears but as the ECU is aware of the throttle position would it not be possible to have the drop a few gears signal or whatever to the automatic transmission into something that can be used to improve throttle response or performance. Be brutal if this is a crap idea tell me now! Engine Fri, 21 Aug 2009 17:56:33 GMT http://www.oddunit.com/engine-f1/automatic-g60-ecu-and-tb-t352.htm#4685 http://www.oddunit.com/engine-f1/automatic-g60-ecu-and-tb-t352.htm http://www.oddunit.com/engine-f1/a-word-of-warning-about-a-couple-of-items-t347.htm VEEDUBBED Right peeps, As usual i'm constantly pi$$in around with my ride,this time i decided to get rid of the Audi S4 exhaust and try 1 of the chromed jobbies off eBay in Germany. Right,the finish is fukkin' awful,not on the outside(obviously) but on the inside of the runners. The pipes have been just hacked off without any form of re-finishing at all,i'm talkin steps about 3mm high!,rough,coarse edges and generally poor qualitiy,unless you enjoy using a porting tool for hours like i did-AVOID ... Engine Tue, 18 Aug 2009 12:49:59 GMT http://www.oddunit.com/engine-f1/a-word-of-warning-about-a-couple-of-items-t347.htm#4585 http://www.oddunit.com/engine-f1/a-word-of-warning-about-a-couple-of-items-t347.htm http://www.oddunit.com/engine-f1/87-jetta-kr-engined-wiring-diagrams-t343.htm mrbeige ]]> Engine Tue, 11 Aug 2009 15:52:21 GMT http://www.oddunit.com/engine-f1/87-jetta-kr-engined-wiring-diagrams-t343.htm#4489 http://www.oddunit.com/engine-f1/87-jetta-kr-engined-wiring-diagrams-t343.htm http://www.oddunit.com/engine-f1/multi-valve-engines-t338.htm dirtytorque No real point to this thread. My overriding impression of my 16vg60 as opposed to my 8v engine is that the power comes in much smoother. Is this a feature of multi valve engines> How does say the 12v vr6 compare to the 4motion engine in this regard for example? Interesting page I found... Multi-valve Engines 3-valve engines The earliest mass production multi-valve engines were 3-valves because of its simple construction - it needs only a single ... Engine Mon, 03 Aug 2009 22:12:23 GMT http://www.oddunit.com/engine-f1/multi-valve-engines-t338.htm#4449 http://www.oddunit.com/engine-f1/multi-valve-engines-t338.htm