povey
Part of things
Posts: 700
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Jul 18, 2012 11:55:49 GMT
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Afternoon all,
just fixed my little 1.6 16v (azd) mk4 golf and have been thinking about a little more power
i know a lot of you will prob saybits not worth it and just buy a GTI 1.8 20v turbo but i don't want to i want to be a little different.
So heres my question..
as a general whats needed to supercharge I'm not going for crazy power,
eaton m45 CHARGER OR A G60
MOUNT bracket
pully and tensioner
megersquirt ecu?
could i bike carb the inlet and add a plenum something like hyabusa itbs and fuel rail injectors etc
iv heard about possibly having to lower the cpmpression how do i do this? thicker steel headgasket
any advice technical info would be great
Gary
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Philj
Part of things
Posts: 898
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Jul 18, 2012 12:56:02 GMT
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The VW 1.6 16v engine is very weak to be putting boost through...
Once you've done all the above, you'll be into serious money, it won't be a fast car, and it'll break for fun.
Same money could be spent on putting in a 20vT engine with a charger and MS instead. Cheaper, less work, more power.
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povey
Part of things
Posts: 700
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Jul 18, 2012 16:54:20 GMT
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Inthough the 1.6 16v was the same block as the polo GTI just with a different head which people tune up a fair bit, iv got the hyabusa carbs and can get a plenum easily, the eaton chargers are pretty cheap on eBay and I can get a programmable ecu etc I just want to know the finer details, I'm not looking for mega bhp probably between 150-180 ish
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sparkyt
Posted a lot
selling stuff
Posts: 1,767
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Jul 18, 2012 17:17:50 GMT
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From memory 7 - 15 % additional HP on a standard bottom end with a charger is the limit after that you will start getting into lowering the compression to keep it safe .. Yes Yes and Yes you can add itbs but you won't really gain they are good for air flow in a standard none charged engine but a single throttle body will be much easyer to fit and set up and give you more power .. the ecu will cope with 7- 15 % increase in air but bigger injectors and a remap is a good idea .
Balls out big HP out of the 1.6 .16v . I'm not to sure how much that's going to cost but it will be loads ..
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sparkyt
Posted a lot
selling stuff
Posts: 1,767
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Jul 18, 2012 17:21:22 GMT
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I've got a 1.8 20v none turbo for sale with itbs you'll be getting the HP your after 180 its yours ..
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Jul 18, 2012 18:24:53 GMT
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Eaton M45 has a better reputation than a G60 blower.
Carbs and megajolt seems in this case too much overkill, besides there is big chance that quite complex to remove the original ECU.
I would use a rising rate fuel pressure regulator, like most supercharger kits for the Mazda MX-5. Or a Dastek piggyback ECU if you want more control without spending too much money.
You can add double head gaskets to lower the compression ratio and an intercooler to reduce inlet temperature.
Running between 0.4-0.6bar boost, you could gain around 50-65% power.
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 Click picture for more |
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Jul 18, 2012 19:22:00 GMT
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I would use a rising rate fuel pressure regulator, like most supercharger kits for the Mazda MX-5. Probably not a good idea. The MX5 engine is tough and has a fairly low CR ast stock, so has plenty of room for error in terms of fuelling and ignition at a few psi of boost. If it is true that the 1.6 16v is a bit weak, you want truly excellent control of the fuel and the spark - a piggyback ECU as an absolute minimum. A supercharged 20vT engine should be a lot of fun, and they are very tough engines. Bit heavy though. |
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povey
Part of things
Posts: 700
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Jul 18, 2012 19:43:13 GMT
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Thats all food for thought the 1.8 20v non turbo sounds like a brilliant idea, does it come with everything I need? If so I could be very interested
Iv been told they are tough enough to cope and iv read that a 1mm shim and double headgasket, ported and polished head programable piggyback ecu and a few other bits and bobs and it's all good
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sparkyt
Posted a lot
selling stuff
Posts: 1,767
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Jul 18, 2012 20:41:18 GMT
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The 20v is on eBay fishing tomorrow I think .. just look up 1.8 20v and you'll see it .. its got 16 watchers but no bids .. if you want it come have a look we'll sort out the price I do have some itbs ill let you have with it only had 42 k on the clock .. pm me if your interested bud
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Jul 18, 2012 20:54:58 GMT
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Why not go KR or ABF both strong motors and very cheep.
I have three 1.8 KR in various states of undress.............
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povey
Part of things
Posts: 700
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Jul 18, 2012 21:31:50 GMT
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The only problem with that is getting them a mk4, I did want to put a vr6 in there but when ever I say it I get the same reaction.....why not buy a GTI or put a 1.8t in
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Jul 18, 2012 22:01:44 GMT
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The gearbox in the 1600 is fragile to say the least.
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sparkyt
Posted a lot
selling stuff
Posts: 1,767
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Jul 18, 2012 22:09:09 GMT
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Big fella has the nail in the whole idea ..... he's spot on with that one ... we've sold dozens of them..They simply explode . .. green end cap on the box
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You don't need to lower the CR with a roots type supercharger  Its not the same as turbocharging don't bother with ITBs Move TB to pre charger, run a good intercooler, you may be able to reflash std ecu don't go looking for boost - thats just showing a restriction further down the system, don't spin the charger too hard and you`ll keep it in the best efficiency range. All the supercharger maps are on the eaton site. VW specific gearbox issues etc I don't know about..... ;D |
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povey
Part of things
Posts: 700
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Hadn't thought about the gearbox... Hmmm will it be a mission to get a 1.8 20v non turbo in there then go with the supercharging?
Thank for all the info people :-)
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