casper88

Well after yearly a year of owing my twimcam sierra. And now my points have gone from my license. I am looking into keep her still and being alittle but more power hungry. Shell wise she is immacluate hence thinking on engine conversion. I use it everyday for work and back etc. What would you guys go for 24v cossie or yb?

cossie04

iTrader: (1)

I you want mega power, go for the YB. If you want just 200bhp and useable everyday, go for the 24v. I've had both, and would opt for 24v if using everyday.

opposite lock

iTrader: (3)

For me it would be 24v all day especially if using daily. Proper fun engine to sit behind imo . I have a YB myself but theres something about boa engines i love them.

ajamesc

i may get shot down for this as being passionford no one likes yb,s lol but yb all day long v6,s are slow as fook!

xr_craig

iTrader: (2)

YB gets my vote too. If your going to the hassle of a swap fuck messing about with the V6

Mark V8

iTrader: (2)

Fit and forget reliable 200bhp daily driver = BOA

mk22door

if your going to mess about with an engine change why not just buy a Cosworth?

You would spend loads of money getting a yb to run propperly in a 8v shell.

Think decent diff, decent brakes, decent suspension, decent gearbox, all the bits in between - decenet everyhting!

Really depends how much cash you've got lying around?

Probably better to buy a decent Saff to start with?

mk22door

You can't just forget a BOA after fitting - still plenty to go wrong

Mark V8

iTrader: (2)

I must have been luck with the one I had, bought it with 120,000 on it and gave it a quick freshen up with rings, bearings etc and it's still going strong at well over 200,000 miles after selling the car to a mate.

Ade500

iTrader: (1)

V6 for me too

casper88

because i dont want to buy a cosworth have looked before and now alot are rotten or rough as a badger, hence why i want to do a conversion to mine, cause the shell is completely rust free... i already have konis all round, amhed springs, cosworth 2wd brakes all round, cosworth rear lsd and n bolt on shafts. so makes sense really

gjh

Get the V6

PileOfRust

V6 makes a better noise,
Ajamesc I dunno what boa cars you've been in, they're not slow by any means

Dads mk3 cappa has a standard boa, when it gets driven it gets driven hard and its had no problems whatso ever and sounds the tits

Daily driver/all out abuse = v6
If your chasing power figures then go for the yb,

I don't dislike the yb one bit, but the v6 is what I'd go for.. the noise is unbelievable

foreigneRS

neither. either keep it as it is and don't waste money on it (especially on insurance for a modified car if you've been a bit naughty) or sell it and buy something faster in the first place. absolute waste of time, effort and money.

PileOfRust

That also makes perfect sense ^

ajamesc

Work mate has had 3x granada cosworths all slow and boss,s son has a 3l capri with an essex v6 is it? in it thats slow too! i guess different people have different views on whats fast or not

casper88

anyone on here done the v6 conversion?

opposite lock

iTrader: (3)

There is a good forum for the 24v conversions just cant recall the link.
A friend of mine has done a few his 24v xr4i is a hoot to drive , the noise is just right for rawness but easy power, honestly he,s car just makes you feel like your in a race type thing , no way on earth will a YB replicate that and for me thats the fun in them. They are gonna feel sluggish compared to a well spec,d YB . All round fun the 24v Cosworth engine ticks different boxes . Plus the fact you can turn them into animals with forced induction but probably more expensive than the 4pot.
An engineer i know said he made one do 320 ish iirc with lots of modding without forced induction.
Roger Duckworth used one back in the day there is some small footage on the tube. Awesome .

cossie04

iTrader: (1)

I did one a couple of years ago, have a look thru this thread...

https://passionford.com/forum/restor...g-project.html

Ade500

iTrader: (1)

Yep Fordpower has loads of info mate

casper88

Thank you for all the help guys

Ade500

iTrader: (1)

Imagine someone modifying a ford on a ford enthusiast website, wierd ?

fraser9764

iTrader: (3)

Best boat anchor -V6
Best engine - YB

The Youth.

iTrader: (1)

Im in a good position to comment, My race car in 2010 had a V6 24v motor in it was a great motor not quick for a race car but it did me well and was totally reliable
I fitted a cossie motor with a t34 etc and in 2011 went round cadwell park 6 seconds quicker!!
It isn't as reliable as the V6 with lots of niggley problems but I wouldn't change it back ever!
as an every day car tho the 24v would be great

steve

scoooby slayer

iTrader: (4)

24v is alot of work for not alot of power imo, yb it at nms gunship should be reliable to.

orion turbo

2.3 16v dohc with turbo conversion using cossie managment and turbo on a moded sr20det manifold.

500bhp has been achieved with more eg cams, headwork

casper88

Orion turbo never seen or heard of this conversion tell me more?

saph in dorset

I did the conversion from the 8v DOHC to the V6 BOA a few years ago now and it really has been fit an forget with the engine. As said its not slow and as people forget the yb was only around 200bhp as standard so a comparable figure so a standard BOA.

I am looking to and I know many others have already done it and that is twin turbo the BOA which turns it into a completely different animal. You can easily and fairly cheaply get 300/350 bhp and if you want to spend more some have got around 750 bhp out of one.

I do love the yb engine but I chose the boa purely as it was the more reliable engine but still had plenty of potential power wise.

It is also an easy conversion. The only thing that gets tricky is splicing the new engine loom into the car but there are plenty of people that can give advice on that if you need it.

Feel free to pm me if you want more details etc.

Cossiemainful

iTrader: (1)

Both engines are great but the YB is the better tuning basis.
Don't get me wrong but a BOA with twin turbo can easily achieve 500+ Hp.

saph in dorset

I absolutely agree the yb is the better basis for tuning but that is only because it has had over 20 years of development whereas the BOA has very little work done on it and what has been done is mainly by individuals rather than big tuning companies.

Any engine can be tuned it just down to how readily available the parts are to do it and the yb has parts on the shelf whereas the BOA needs the either made per order or custom making

orion turbo

id go for the 24v. still plenty tuning potential. just coz some people say it be slow there heads are just to big to get in there car!! for some going from 125bhp to 200odd is a nice step up.

and wont need rebuilding every time u go shop in it.

scoooby slayer

iTrader: (4)

if built properly a stage 1 cossie will be reliable.

orion turbo

years ago there was a xr4i with a dohc in it. using scorpio block rs2000 head runnin over 400bhp. sr20det has same manifold primary positions just need to weld on a dohc flange. then you have use of gt25s and 28s or even with adaptors use of td series turbos. as well there was a mk6 rs2000 in red with same engine using same manifold.

i myself am stockpiling parts for this conversion.

i shall try dig out the magazine

orion turbo

not doubting that as i ran a stage 3 for couple of years trouble free. meaning once you start upping power . has anybody cosidered the fellas insurance as he already has cos parts inserting the yb will essentially make it a cos

Derby_Gav

How about neither engine and go for a Saab 2.3 turbo engine?

orion turbo

saabs last time i checked are more than roten old scorpio 24v

ajamesc

had my saff for 10 years its been 350bhp and 500bhp built properly and never been un reliable!

orion turbo

eveyday??

ajamesc

was for about 6 years with 350 and for just under 2 years with 500 when i only had 1 car but not now as i have a second car but dose get used daily in the summer/dry

TimoXr4i

I would say the v6 mate, no turbo, so, it cant break, yb engines get pretty old this time, easy to find a low milage boa, at least in holland, and un tuned there both 200 horses.

By the way, cossie 24v with nos can make at least 750 horses, just read fordpower.org!