RegW
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| posted on 16/5/13 at 02:00 PM |
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Duratec: factory inlet/injection or carbs?
A std Duratec has 145hp.
A custom manifold, bike carbs, new ECU (like megasquirt), setup, tuning etc.... costs easily £1000 + - to gain a further 25HP.
Is the difference so dramatic to make it worth?
To gain 50HP, you need to spend another £1000.
Why not stick to the engine how it's pulled from the Mondeo - and keep the factory inlet/injectors etc...?
Any reason why this is not a good idea?
THX!
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redeye
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| posted on 16/5/13 at 02:12 PM |
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Hi and welcome to the forum.
£1000 sounds about right for the set-up you're referring to. Thats about what it cost me to stick gsxr Throttle bodies on with an Omex 600 ecu
(second hand for £500)
However I gained more like another 45bhp (rolling road came in at 188.9) So more than worth it.
Using the standard ECU wasn't really an option for me either, 1 - I didn't have one and 2- would have been way overcomplicated for me.
My engine also never came with the inlet, there's not reason you cant use this if you have it.
Hope that helps
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snapper
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| posted on 16/5/13 at 02:18 PM |
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The idea is fine
The main problem is PATS in the original ECU means you have to stash the original dash somewhere
Any old engine can make 145bhp easily so most spec up the Duratec to 190bhp
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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mark chandler
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| posted on 16/5/13 at 03:02 PM |
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No reason not to use factory EFI as recovered from the car if you are willing to undertake the additional complications such as PAT's etc, if
you use a system that has been cracked for remapping you can pull additional power with controls such as knock sensors included but in general to go
to throttle bodies and to start to really exploit on a budget then standalone may be easier in the long run.
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RegW
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| posted on 16/5/13 at 03:21 PM |
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Many thx for all this great advice.
Also, I noticed that carb kits for ZETECs are substantially cheaper - e.g. Ford Zetec E Complete Bike Carb Conversion Kit R1 40mm
Mikuni | eBay
Is there a fundamental reason why it's cheaper to tune ZETECs than Duratecs?
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big_wasa
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| posted on 16/5/13 at 03:40 PM |
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quote:
Originally posted by snapper
The idea is fine
The main problem is PATS in the original ECU means you have to stash the original dash somewhere
Any old engine can make 145bhp easily so most spec up the Duratec to 190bhp
Any chance you can tell me where you got your info on needing the dash ? Not saying your wrong but I am interested ?
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big_wasa
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| posted on 16/5/13 at 03:42 PM |
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quote:
Originally posted by RegW
Many thx for all this great advice.
Also, I noticed that carb kits for ZETECs are substantially cheaper - e.g. Ford Zetec E Complete Bike Carb Conversion Kit R1 40mm
Mikuni | eBay
Is there a fundamental reason why it's cheaper to tune ZETECs than Duratecs?
Ive already done a bit of an "how to" with running the standard ecu for the zetec and I am working on the ST170. I don't see the
duratec being any harder.
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Bare
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| posted on 16/5/13 at 03:56 PM |
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Mazda 3 engines are ; 148 hp @ 2 liters , 155 @ 2 liters and 167hp @ 2.5 liters, Showroom Stock.
Unless already owning the Mondeo derived engine ? A V good choice imo.
The Japanese units are widely viewed as superior/assembly builds.
Really easy to source as well..On this side of the Atlantic at least.
[Edited on 16/5/13 by Bare]
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mcerd1
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| posted on 16/5/13 at 03:56 PM |
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quote:
Originally posted by RegW
Is there a fundamental reason why it's cheaper to tune ZETECs than Duratecs?
I think your looking at throttle bodies for the duratec and carb's for zetec 
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big-vee-twin
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| posted on 16/5/13 at 04:34 PM |
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Many people have followed the Zetec route much less Duratec - suppose its supply and demand 
You need deep pockets for Duratec.
FastDan on here has bike carbs on a Duratec
[Edited on 16/5/13 by big-vee-twin]
Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016
http://www.triangleltd.com
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Matt @ TDF
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| posted on 16/5/13 at 10:52 PM |
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quote:
Originally posted by Bare
Mazda 3 engines are ; 148 hp @ 2 liters , 155 @ 2 liters and 167hp @ 2.5 liters, Showroom Stock.
Unless already owning the Mondeo derived engine ? A V good choice imo.
The Japanese units are widely viewed as superior/assembly builds.
Really easy to source as well..On this side of the Atlantic at least.
[Edited on 16/5/13 by Bare]
Actually there is a 167bhp 2 litre variant, the MZR LF in the MX5. This is the engine we use at work as our base for all of our performance 4
cylinders. It is for all intense and purpose a way better Duratec, it has inlet cam VVT, much nicer steel crank, stronger rods and much better pistons
as standard, plus a better head and 11:1 CR out the box. These engines do 200bhp with just a change of inlet setup!
They're a bit more than a Duratec brand new (but only a small amount) but not for long as Duratec has gone end of life and will be available
from parts stock only very shortly. Plus the difference in cost is less than it costs to get another 20 beans from a Duratec in the first place! I
really, really rate them. Stock redline is 7200RPM, we do 7500RPM all day long on standard engines with no issue. Lovely, lovely things :-)
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