zoso Posted October 2, 2005 Share Posted October 2, 2005 Also the benefit of the 2.0 litre is that it takes away any concerns over which 1.8 you are offered as there are at least 3 different power outputs Thats a good point... Quote Link to comment Share on other sites More sharing options...
congorobot Posted October 2, 2005 Author Share Posted October 2, 2005 Thanks for all the good info! 3 types of 1.8 zetec! Only 1 type of 2.0? What's the difference in power between the 1.8 and 2l? Are they not all alloy blocks? Is the red top alloy? Where can bellhouses converting from type 9 to redtop be sourced from and for how much? Are all redtops the same, (2L ?), and what sort of difference in power output is there? Should I keep with carbs or use fuel injection. Fuel injection will give me more power and better fuel economy will it not? Quote Link to comment Share on other sites More sharing options...
Carl Posted October 2, 2005 Share Posted October 2, 2005 I always thought that the Zetecs had a special honing process (designed by Yamaha) that is very difficult to replicate and was always told (by people more learned than me), if the bores show no sign of damage, to leave them well alone. This is correct. Apparently on looked after engine you can still see the honing marks after 30k miles. Quote Link to comment Share on other sites More sharing options...
Thrustyjust Posted October 2, 2005 Share Posted October 2, 2005 there are two different 2l Zetecs.The focus were fitted with the Black Top as per the avatar.This is slightly different than the silver top pre-99 engines.They were mainly fitted with hydraulic followers and smaller valves.This was an issue with them and Ford redesigned (with Yamaha) to use a slightly larger valve to stop them sticking and solid lifters,so allow higher revving.This made approx 10bhp difference when fitted to a Westie,compared to the earlier engine.They are no different to fit,as the block is basically the same and utilise the same installation components.Mine was a 3000 mile engine and was bought for £400.It needed nothing done to overhaul it apart from fitting a set of ARP big end bolts.Cheaper than a million mile engine from the early days.(pours another beer and sits back) Quote Link to comment Share on other sites More sharing options...
congorobot Posted October 2, 2005 Author Share Posted October 2, 2005 Are the 2L zetec and redtops alloy blocks? What gives more power injection or carbs? Quote Link to comment Share on other sites More sharing options...
perksy Posted October 2, 2005 Share Posted October 2, 2005 Cheaper than a million mile engine from the early days.(pours another beer and sits back) Here We Go Again.... Time to turn the Telly Off and get the Stella out (Already Sitting In Favourite Chair) Quote Link to comment Share on other sites More sharing options...
Thrustyjust Posted October 2, 2005 Share Posted October 2, 2005 neither are alloy blocks unless you buy the Vaux alloy blocks cast by someone for about a few grand.Heads are alloy tho'.I don't think there is much weight difference between the two.Maybe you ought to look at the ST170 engine from a Focus.That has variable cam timing and should with a a decent set of throttle bodies and ecu give you over 200bhp. Carbs are more fiddly to set up and throttle bodies give infinate adjustment by playing on a laptop,the same with timing on an ecu,which you will need for a zetec,but you can rum a red top on a distributor. Quote Link to comment Share on other sites More sharing options...
Blatman Posted October 2, 2005 Share Posted October 2, 2005 Are the 2L zetec and redtops alloy blocks? What gives more power injection or carbs? No. The only ally block engines used in Se7ens are K series, Rover V8 and Duratecs. Zetecs, Vx's, Pinto's, Xflows, Cosworths and Toyota 4AGE's all have iron blocks. The Zetec, Vx and Toyota have ally heads as do Cosworths. Injection and carbs in theory give the same power. It's mid range and drivability that puts injection waaaay in front. And becuase carbs are rarely *properly* set up, folk who switch to injection usually see a few more bhp at the top end too as a happy bonus. Quote Link to comment Share on other sites More sharing options...
Thrustyjust Posted October 2, 2005 Share Posted October 2, 2005 Think it's QED that do the alloy vaux block and are about £3.5k.Evening Blatters Quote Link to comment Share on other sites More sharing options...
Blatman Posted October 2, 2005 Share Posted October 2, 2005 Evenin' Thrusty. Yup, QED make an ally Vx block, but if you have the money for injection and ally block lovliness, it has to go on a Millington Diamond Cosworth, IMHO Quote Link to comment Share on other sites More sharing options...
Thrustyjust Posted October 2, 2005 Share Posted October 2, 2005 Blatters,might be able to do you a very low mileage Duratec and BGH box(400 miles) if the factory write off Dales car on Friday.Just don't tell him Quote Link to comment Share on other sites More sharing options...
jak Posted October 2, 2005 Share Posted October 2, 2005 Cheaper than a million mile engine from the early days.(pours another beer and sits back) Here We Go Again.... Time to turn the Telly Off and get the Stella out (Already Sitting In Favourite Chair) *Walks back in, sits down* Any chance of a Stella, Perksy John Quote Link to comment Share on other sites More sharing options...
congorobot Posted October 2, 2005 Author Share Posted October 2, 2005 Ah this is all getting very interesting. So what about the rover eng? What would you guys choose if you were to do a conversion? In summation it would seem that 2L is best, redtops are cheaper to tune, but a k series would be lighter? When any of these are fitted what changes have to be made from standard on the intake side of the engine? Quote Link to comment Share on other sites More sharing options...
Blatman Posted October 2, 2005 Share Posted October 2, 2005 Fast Arnie has an opinion on Vx ally blocks here... Quote Link to comment Share on other sites More sharing options...
congorobot Posted October 2, 2005 Author Share Posted October 2, 2005 Is the K series a good alternative or not very tuneable? Quote Link to comment Share on other sites More sharing options...
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