Gez Posted May 14, 2007 Share Posted May 14, 2007 I know its not even near the winter yet, but i feel the need... the need for speed and all that. I'm pondering upgrades, and I'm thinking new cams, then head work and trottle bodies at some point too (maybe first, maybe last - I haven't decided yet!) I'm currently running a 2.0l Zetec on Weber 40's. My aim is for around 200bhp when all the work is completed. Which cams would be most suited to this. I'm wanting fast road use and only minimal track use (if any), and so tractability is quite important for me - I don't just want loads of top end power and nothing below 3000rpm. Gez eta current specs Quote Link to comment Share on other sites More sharing options...
sedsy Posted May 14, 2007 Share Posted May 14, 2007 Telling us your current spec would help mate !! Quote Link to comment Share on other sites More sharing options...
chazpowerslide Posted May 14, 2007 Share Posted May 14, 2007 Spend your money on a pukka close ratio five speed 'box. It'll "Feel" like it's got 200 BHP and go like stink too. Chaz. Quote Link to comment Share on other sites More sharing options...
Gez Posted May 14, 2007 Author Share Posted May 14, 2007 Telling us your current spec would help mate !! Oops sorry, i just did 2 new topics, and forgot to put it in this one! 2.0l zetec on weber 40's. Quote Link to comment Share on other sites More sharing options...
perksy Posted May 14, 2007 Share Posted May 14, 2007 When wanting this horsepower are you keeping carb's or going Throttle bodies What do you intend to modify first If your keeping the 40's Forget 200bhp As Chas says you might want to consider gearing first What gearbox do you have at the moment Quote Link to comment Share on other sites More sharing options...
jak Posted May 14, 2007 Share Posted May 14, 2007 For 200bhp you'd want bigger carbs or throttle bodies, modified cylinder head and cams. John Quote Link to comment Share on other sites More sharing options...
Gez Posted May 14, 2007 Author Share Posted May 14, 2007 200bhp with TB's. Haven't deicided order of upgrades, but may well do TB's first, or cams then TB's then head work. Don't really want to do gearbox at the moment. although its currently on an MT75. Quote Link to comment Share on other sites More sharing options...
JeffC Posted May 14, 2007 Share Posted May 14, 2007 EvoMark has a 220bhp zetec on 45s and a good gearbox , I will talk him into going to the next n.east meet. .. blag a ride in that , its very impressive.. Im sure that will tempt you in to going the whole hog Quote Link to comment Share on other sites More sharing options...
Gez Posted May 14, 2007 Author Share Posted May 14, 2007 For 200bhp you'd want bigger carbs or throttle bodies, modified cylinder head and cams. John Thanks John, thats pretty much what I said in the original post. What I was asking was which cams to go for? Gez Quote Link to comment Share on other sites More sharing options...
Gez Posted May 14, 2007 Author Share Posted May 14, 2007 EvoMark has a 220bhp zetec on 45s and a good gearbox , I will talk him into going to the next n.east meet. .. blag a ride in that , its very impressive.. Im sure that will tempt you in to going the whole hog Thanks Jeff, I'd certainly like to blag a ride (and have a chat about what he's got under the bonnet) if you can twist his arm into coming to the next club night. I may well go for a type 9 eventually too, but I'm trying to take it one step at a time, and have decided to do engine first. Quote Link to comment Share on other sites More sharing options...
chazpowerslide Posted May 14, 2007 Share Posted May 14, 2007 If you are looking for a good tractable motor then the one you have allready is pretty good. EFI may liberate a few more horses and will make it more driveable low down in the rev range. Cams and head work if done and set up correctly will liberate around another 10 to 20 bhp but at the expence of low down torque if on carbs (less so on EFI) Bank on spending £600 to £1000 for a pukka head and cams (a lot of dosh for 10 to 20 BHP) I guess you current set up will be pushing out around 155 to 165 bhp which for a car mainly used on the road is plenty, at this output your 40DCOE carbs are begining to become a restriction. If you are aiming for 200BHP I think you'll run out of induction with the 40mm carbs and these will need to be changed for 45mm items or 40-45mm throttle bodies. If you sold off your old ECU and carbs and went for EFI from DTA, Emerald, Omex, Webcon, MBE ect you'll end up spending in excess of another £700 to £1000 for your EFI upgrade. This can be done a lot cheaper with Megasquirt and bike throttle bodies. A much cheaper option would be to loose the screen and as much weight as you can from the car and fit a better gearbox, you'll find the difference quiet staggering (even if you only do the 'box) Chaz. Quote Link to comment Share on other sites More sharing options...
jak Posted May 14, 2007 Share Posted May 14, 2007 For 200bhp you'd want bigger carbs or throttle bodies, modified cylinder head and cams. John Thanks John, thats pretty much what I said in the original post. What I was asking was which cams to go for? Gez Sorry mate, did n't read it properly. Raceline may be worth a look here Quote Link to comment Share on other sites More sharing options...
speedy blue Posted May 14, 2007 Share Posted May 14, 2007 600 - 1000 pounds for head and cams who are you recommendinghere at this price andatthis power level ie 200 bhp is an uprated clutch a must? Quote Link to comment Share on other sites More sharing options...
nikpro Posted May 14, 2007 Share Posted May 14, 2007 Keep the engine as is if you intend mainly road use and maybe just change to TB's. A 200 bhp zetec starts to get a bit 'camy' and is not as much fun on the road as a standard unit. I've upgraded to a 200 bhp+ Zetec and its great on track but not as good as it was as a road car - even thinking of changing it to a track only car because of this! For a reliable 200 bhp you will need kent FZ2003 cams, heavily modified head (enlarged lifter bores and solid lifters) and pocketed pistons to run the cams - in all budget on £5,500+ for everything including 45mm TB's, Injectors,loom, ECU and mapping. Quote Link to comment Share on other sites More sharing options...
Kevin Wood Posted May 15, 2007 Share Posted May 15, 2007 I'd go for injection first and see how it goes. As others have said, there's no point going for more power on your current carbs. If you did change the cams first at the minimum you'd also need to stump up for a set of jets, chokes, etc. for the carbs and a rolling road tune. It just wouldn't be worth it. Upgrade to TBs, make sure you've got enough fuel injector flow to go to 200+BHP if need be, and see how you get on. It will be a good bit quicker on TBs with much improved flexibility in the midrange, and this might well be the improvement you're after for road use. Kevin Quote Link to comment Share on other sites More sharing options...
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