16V Transfer

kiwi · Post by **kiwi** » Sun Nov 25, 2007 7:22 am

Ok call me crazy but just wondering if it is plausible, practical and what pitfulls to look for transfering a BX16V engine into a BX19TZS.

Yea I said its crazy more thing along the engine slapping and a carb etc if possible?

Given this BX16V has died due to rust this is a option I am looking at.

Failing that what parts could be transfered.
Already thought about snow plow spoiler at the front and carry handle spoiler and of course the dashboard temp gauge and Oil temp gauges and alloy wheels.

kermit the frog · Post by **kermit the frog** » Sun Nov 25, 2007 9:54 am

Hi Kiwi

I would think most of the 16valve mechanicals (engine transmission fuel and ECU ) would need to be transfered along with the front brakes.
Not much point in having all that get up and go if you can't stop!
But i think the man to tell you would be the DOC!

Regard's Kermit

Post by **docchevron** » Sun Nov 25, 2007 6:03 pm

Yeah, it's doable.
You could just put the engine / gearbox i the car and leave it at that really.
Obvioulsey you'll need to swop ALL the ECU wiring loom, and extra stuff for the gauges etc, but it's a bolt in job.

However, to do it properly you'd really need to change the front and rear roll bars, and as said by Kermit, the front brakes.

All easy enough straight swops, I'd give it a long weekend to do it all, or a maybe a bit longer if you aint done it before.

kiwi · Post by **kiwi** » Sun Nov 25, 2007 7:34 pm

An important question in these days of rapidly rising fuel costs of which New Zealand is being cushioned by the exchange rate quite nicely is how would the Fuel economy be affected by plonking in a 16V engine with just the 19TZS or BX 16 carburetors?

None of the other electronic stuff that is?

jeremy · Post by **jeremy** » Sun Nov 25, 2007 9:28 pm

You'll have fun getting a carburettor off an 8 valve engine to fit a 16 valve head.

Why should a mechanical carburettor be more economical than a moderately sophisticated electronic fuel injection system? Are 8 valve GTi's worse than BX 19's? - the answer is no if they are driven in the same manner.

If you want to cut your fuel bill you'll have to get a diesel.

Post by **docchevron** » Sun Nov 25, 2007 11:51 pm

You can get carburettor kits for valver engines, but really, you're wasting your time.
A well set up valver is not too bad on the go juice, and as Jeremy says, whilst the Motronic is very basic by todays standards, it's a hell of a lot more accurate than a carb could ever be.

Vanny · Post by **Vanny** » Mon Nov 26, 2007 5:59 pm

docchevron1472 wrote: A well set up valver is not too bad on the go juice

bollox, mine is eating through fuel at a rate of knots!

I'm noticing however i do get places quicker, normally due to the fact i can now overtake (something rather difficult in a diesel!)

MULLEY · Post by **MULLEY** » Mon Nov 26, 2007 6:27 pm

19txd with a bit of bio diesel & veg oil, its a valver in disguise

CitroXim · Post by **CitroXim** » Mon Nov 26, 2007 8:04 pm

I wonder what the 205GTi lads would make of transplanting a valver into another BX

Oh the irony

I like the idea, a nice sleeper or Q car

I guess it'll be a very similar job to transplanting a valver into a 205...

Seriously, the 205GTi Drivers Forum (forum.205gtidrivers.com) will provide all the info you'll need but over there they know the engine as an Mi16.

They do put carbs onto a valver, usually a pair of 40DCOEs or bike carbs. They also put throttle bodies on them, using after-market management. A neat way of overcoming the air-leak problem on the standard valver throttle body apparantly.

I like the idea of a diesel transplant even more though. Or, if you really want a challange and a real Q car, how about transplanting an XU10J2TE Turbo from an Activa or a Pug 406 into a BX

There are a few 205GTis running around with Activa engines in them

If you think the valver is a bit thirsty, it's positively frugal compared to the Activa...

MULLEY · Post by **MULLEY** » Mon Nov 26, 2007 9:29 pm

No point in putting in a 150bhp turbo when a 16v comes with 160bhp? or am i missing something important

CitroXim · Post by **CitroXim** » Mon Nov 26, 2007 9:58 pm

MULLEY wrote:No point in putting in a 150bhp turbo when a 16v comes with 160bhp? or am i missing something important

Tree-stump pulling torque from idle to red-line Mulley, forget the power, just feel the torque

the CT (Constant Torque) designation is bang-on, it really is and in bucketfuls.

I can trundle along at idle in 5th gear and still accelerate and pull away from a stand-still quite comfortably in 3rd gear

It pulls a heavy old Xantia along a treat

Mike E (uk) · Post by **Mike E (uk)** » Mon Nov 26, 2007 10:05 pm

I don't know if the TZS has it, but transfering ABS could be real tricky, with pipes & hubs & electronics.

I got 41mpg again from my 16V bx a few weeks ago, but that is for long trips & with a taller than normal 5th gear.

On 7 mile trips to work with lots of hills, I get about 27mpg. Not fantastic, but acceptable.

A 16V engine with carbs will be much thirstier, and more trouble.

If you want economy & performance, go for veggie oil and turbo D.

MULLEY · Post by **MULLEY** » Mon Nov 26, 2007 10:35 pm

Torque it is then, drove the mini today & could certainly feel the power even though i was changing up early & just using the available torque lower down the rev range, effortless....shame i cant get more than 30mpg though.....

AlanS · Post by **AlanS** » Tue Nov 27, 2007 9:38 pm

WE did this exercise a few years ago on a CX when we transplanted a 2.5GTi into a 2400 carby model and we had the same ideas about just dropping the mechanicals in and transferring the distributor and carby across but it just don't work that way. Even the dash had to be changed and this was fun as it all came from a LHD car and was going into a RHD one.
First trap was nowhere to fit the fuel pump. Then we needed wires and pipes from rear to front that weren't there on the 2400. It was one major hassle after another until we eventually decided to just do a total transplant. That included dash binnacle complete with all the wiring, ECU and so it went on. This was by far the simplest solution.
I was considering doing it with a BX wagon a couple of years back (transplanting a 16V into it ) but decided against it as I reckoned I could find better use for a pile of 16V bits and in any case, plans at that stage was to develop a sprint car which still might happen.
As regards fuel consumption; I've just done a 2000 klms trip which included a couple of ranges as well as a bit of city (country town) driving and on the way down and partway back, it averaged 8L/100 klms or 35 mpg.
At the last stop, I topped up the fuel and set the trip meter. When I got home it showed still 1/4 tank after 600+ klms which on a 65litre tank looks like good economy.
Normally around town I get 9.5L/100 klms which equates to around 30 mpg, so the only thing I can suggest as the differences we get over here to you over there is that the speed limit is max. 110 kph, but mostly 100 kph, but having said that, our trip down was at an average of 93kph which included 4 stops along the way, so I wasn't exactly driving steady.

Alan S