Finally made my mind up on engine, emissions?
 

Morning all,

You may remember I was intending on using an R1 engine for my build. After some thought about reverse box, LSD, dry sump etc. I have decided against it due to costs. I gotta be realistic, a roadster on the road is better than an unfinished one due to finances.

Anyway I have decided to try and track down a pre Aug 1995 2.0 silvertop zetec and run it on a bike carb and ecu set up from Chester sports cars (only a few miles away).

My query is that from what I have read on tinternet is that a pre 1995 zetec does not need a cat, and is easy to get through emissions.
However when reading the IVA manual (section 02B) it states that if the engine previously had a cat to test it as such. I believe 2.0 silvertops were fitted with a cat, or is it because they dont have the data in the analyser database/emissions book?
So, do I need a cat on my roadster if I fit the 2.0 zetec?

Another question. This might be a bit dodgy...
If I change the logbook for my donor to say the 2.0 zetec was fitted to the sierra, would they test it as a Sierra 1992 Sierra? Because the log book would show the zetec engine number?

mmm...........interesting:D

I see what you mean if you follow the IVA flow chart and you can get an exact match,but pre 95 cars were not subject to a cat test.

On mot gas testers there is a menu and it gives options for differing years.

I'm pretty sure the testers are wise to such moves as having a V5 altered, they would know that a sierra never had a zetec fitted by the factory.

What't the big issue with fitting a cat? If you are going to the expense of using bike carbs etc, then why not fit the engine with it's original injection system and cat for IVA then switch to bike carbs later?

If it's the looks your worried about then 7tips do a nice silencer with a cat built inside it.

Thanks aerosam.

Yeah, thought it was a bit cheeky to try and change the log book, but it may be worth a try.

The main issue I have with changing it later is I dont want to do it twice and have to change wiring, exhaust etc.. aswell as the looks

Would prefer to get it through on bike carbs first time round if I dont need a cat for IVA.

Hi mate, H.K.Williams in Ruabon did have silver top a couple of weeks ago, didnt pay too much attention to it, think it was in a Mondeo far end of the yard left hand corner, give them a bell see what they say

Arfon

Hi bud, tried them and the engines he had have gone, doh!

Drop me a reminder towards Friday and when I go too Ruabon at the weekend I will call in to the small breakers by the brickworks and see what they have and how much if you want

Arfon

Thanks bud that would be good.

Many moons and the odd rainy day ago i built a natty Spondon/Harris stylee streetfighter. I made a jig and made the frame so no log book so thought ummm don't fancy a q plated bike so bought a DT125 frame and logbook for a few pennies, I changed the engine size from 123cc to 598cc and sent it off....nobbers sent it back with new engine capacity as 598cc so wahey my streetfighter not only had a number plate it was classed as a classic bike...coooool or what if a little naughty.:cool:

It's a shame that you can't use any 2.0L silvertop. Especially if a fellow forum member had a perfectly legitimate number kept from a pre 95 engine that got scrapped.;)

I'm a bit too far away from you but got a low mileage 1.8 Zetec on Ebay at the moment.

http://cgi.ebay.co.uk/1-8-zetec-Engi...item336659d088

I like your thinking here Gaz. Only issue is I still done know what the advantage of using a pre '95 engine is?

Do they not have emissions data for pre '95 zetecs? therefore emissions test would be more relaxed.

I only ask cos all zetecs had cat, and would therefore need the equivalent CAT test, unless they(vosa) did not have data to compare. In which case emissions test figures would be more relaxed.

Hope this makes sense, I am confusing mself now!:eek:

They can't prove your engine needs a cat because the Haynes Roadster Isn't in their data book. This means the emissions will be tested on the manufacture date of the engine. Ford will apparently give you a letter stating the age if you give them the engine number.

I hope all that ^ is true because that's the route I'm going.

Ahh! OK gaz I understand your thinking.

My only question to this would be:

I thought they went on the engine number and emissions test appropriate for the engine, not the car(haynes roadster).
The reason I ask is if they dont have emissions data for the Haynes roadster you could fit any engine and still meet the same requirements! For example a 2000 blacktop would require a CAT, but no emissions data for Haynes Roadster would mean I do not need a CAT?

Leigh

Leigh

My understanding from the IVA manual and some more knowledgable people on here is all to do with the "Effective date" mentioned in the manual.

The "effective date" of your car will be Jan 1st immediately preceding the manufacture date of the engine. If the effective date is after Aug 95 then the tester has to apply the more stringent Cat test.

If the effective date is before Aug 95 then the test applied is very much easier to meet non Cat emmisions.

Ok thanks Gaz.

The search continues for a pre 1995 2.0 zetec then!

Cheers
Leigh