basically, no flaming from people who know what they're onabout saying things like if i don't know how it works then i shouldn't have it sort of thing. what would be the most reliable,efficient way of getting between 150 and 200hp out of the engine without a swap? i think most people who read the forums want to learn more, but don't really know where to begin. so i use this as an example, so those with the knowledge can share and explain what's the best solution for a problem. would i better off getting a turbo as you get more hp for money. would a supercharger be more reliable and efficient on the smaller engine? or would throttle bodies do the trick?
Turbo charger definatly for out right power. A certain company did one a little while ago, i think on the standard bottom end it was around 140-10bhp odd. You'd really need some lower compression pistons after that to. The kit cost around 2-3k. The most important thing with a forced induction car is to have a well suited turbo, and a bloody good management system. To do a proper job or turbo'ing it you'd need: Turbo Exhaust manifold and gaskets New downpipe and gaskets Oil feed and return lines New injecters most likely (bigger CC) Lower compression pistons Intercooler Lots of custom tubing for intercooler to turbo hoses etc etc Some sort of recirculating dump valve preferably, alough that upto you really. A stronger, thicker head gasket (which would lower the compression ratio a bit, depending how thicker it is) would be nice Of course, thats the engine sorted, but are the brakes, clutch and suspention upto it aswell ? DEFINATLY new cutch would be good to. And fiannly, some sort of good engine management. Theres lots out there, Emerald, motec, DTA etc etc, but most are pretty bloody expensive (anywhere upto around 3grand !!) and will never be as good as the standard management from a 20vt for example, weather you could use this or not on the car im not totally sure to be honest. Get over to designa dubs forum and ask right away ! 800g's is the man when it comes to that stuff (and most other things actually) Thats basicaly it really wez..It might be expensive, but it's still by far the cheapest way of getting the power out of that engine. Edited by: madmk4
You could stick a rotrex charger on it, seen a few of these on 16V polos. Personally i'd go with throttle bodies, and stick in a mk3 Polo Alan
Rotrex There used to be some photos of rotrexed valvers on the Club G40 yahoo list, but they seem to have been removed. Speak to Jabbasport as they are/were a Rotrex dealer! A far as I know, no one in the UK has one, but that doesn't mean there isn't! Ask on Performance polo's Alan Edited by: G40 AL
Rothe exhaust manifold (like the one on the Runars (G40turbo's) in the Golf 1,3T tread), K03/K04 turbo with suitable ECU depending on budget, 63,5mm downpipe. race cat, and good flowing exhaust. If you want to go low on boost go for a 1,6l ABU crank and ad cc's. The guy I bought my huge G40 intercooler from builds a Polo based 1,7L 16v on VGS throttle bodies, fully mappable ECU and turbo. He is aiming for 280 PS. This will really move the Polo I it is going in.
