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Building a 3.0 Duratec in the UK

Pete M

New CEG'er
Joined
Dec 28, 2015
Messages
15
Location
United Kingdom
Hello everyone I intend to build a 3.0 Duratec and fit it into a BMW Compact for rallying here in the UK

Over here the Duratec known as AJ30 is a very forgotten engine but from reading the forum it has lots of potential for horsepower and reliability

I am starting with a brand new engine from here
http://www.ebay.co.uk/itm/Jaguar-3-...046224?hash=item4af5b7d810:g:kAQAAOSwo3pWcHsh

My plans are to have the heads ported, do you think the valve springs, retainers etc will cope with the cam and rev limit upgrades

Use Piper JAGV6BP320 camshafts and vernier pulleys, not sure whether to retain the VVT or not perhaps you can comment
http://www.pipercams.co.uk/pipercams/www/product.php?pid=JAGV6BP320

Individual throttle bodies, my choices are 45mm, 48mm or 50mm again your comments would be appreciated
http://www.jenvey.co.uk/products2/throttle-body-kits/ford-v6-duratec-sf45-throttle-body-kit-ckfd12

Dry sump system Ford/Jaguar V6 3 stage
http://www.paceproducts.co.uk/pumps-and-dry-sumps/dry-sump-kits/

Clevite bearings
ARP Head and Main bearing studs

Forged Con Rods, not decided on make yet there is a UK company producing them but seem a little expensive
http://www.arrowprecision.com/connecting-rods/96-ford-duratec-jaguar-30ltr.html

Pistons are currently a bit of a problem, obviously forged with compression at 11:1, I have to use standard pump fuel so do you think 11:1 is the limit or could I go higher. I may have to have them custom made as the heads on the AJ30 differ from the US models, there are no hydraulic lifters, cams act directly onto the buckets with shims and the combustion chamber is a different shape
http://www.ebay.co.uk/itm/Jaguar-S-...572823?hash=item5d5fd23f57:g:SvkAAOxyhoBSUHEV

Do you have any recommendations for a piston supplier

Management will be DTA S 80 Pro which is capable of running sequential injection, coil on plug plus the VVT PWM signal if required
http://www.dtafast.co.uk/S_80_PRO.htm

I would like to see 320 - 340BHP with a rev limit at 8000rpm do you think this is achievable

Please feel free to comment, criticize or advise all help appreciated
 
Thanks for the link gorman, have you any experience with these rods

I see that K1 rods appear popular and are reasonably priced
 
not yet ... these are the ones I'm going to go for. I'm rounding up all the parts for a 3.0L build of my own. If you find some head studs and crankshaft ladder block bolts .... post up a link please My build isn't showing at the bottom of my posts but I have Vortech supercharger currently on a 2.5L lump....G.
 
hi
live in the uk also , completed my 3l build this time last year
campbell enterprise supplied my k1 rods, they were the cheapest , and custon set of cp pistons . cp will build piston to the cr you want
chesman in coventry dynamically balanced the complete rotating assembly and highly recommend that for a racing engine , they also supplied me a full set of king bearings
mountune supplied me all the gaskets and stretch bolts
 
Thanks art, who did you deal with for the pistons a company in the UK

Is yours naturally aspirated if so what compression ratio did you choose

What'e the spec of your engine, heads, cams and finally what BHP did you achieve

Sorry for all the questions
 
pistons from campbell enterprises also , set cr at 10.8-1 normally aspirated . heads flowed by myself , using st200 cams and st200 manifolds which will limit the hp compared to the set up you are planning . my rev limiter is set at 7.500 but the jag engine with buckets instead of roller rockers can go to 9.000 revs
mine is making 262 hp at crank , imagine your set up with the jenveys , race cams etc, should see over 300 hp
 
not yet ... these are the ones I'm going to go for. I'm rounding up all the parts for a 3.0L build of my own. If you find some head studs and crankshaft ladder block bolts .... post up a link please My build isn't showing at the bottom of my posts but I have Vortech supercharger currently on a 2.5L lump....G.

I couldn't find uprated main bolts anywhere, and the stockers are absurdly priced. I've been talking to Joey at NPG about the main bolts. I've made another post about them. NPG can get the ARP 2000 main bolts. I know Joey does international orders. If you can't find the bolts anywhere else, you might give him a shout.
 
thank you for the leads guys..... having those options is very helpful. ..... G.
 
went to nautilus web site ..... good prices .... but site triggered a...... JS / redir...... virus alert on my antivirus .... can someone over there let them know please ... thanks ....G.
 
Next time I talk to Joey, I'll mention the virus alert.

The NPG website is not very good at all. It's very out of date. The best thing to do is contact Joey directly. He's flaky about email, but does answer the phone. It sucks having to call from the UK though, I bet.
 
thanks for letting me know about e-mails .... hmmmm ....doesn't bode well for paying by paypal . Correct calling the states with anything other than Skype would run up the meter some......... unless I can get an international line from work........ (oops did I just type that ).... G.
 
On a turbocharged 3.0L V6 the stock ford head bolts and mains have been fine and reliable, always fit upgraded rod bolts though.... I run a arp stud kit on the heads.
 
Individual throttle bodies, my choices are 45mm, 48mm or 50mm again your comments would be appreciated
http://www.jenvey.co.uk/products2/throttle-body-kits/ford-v6-duratec-sf45-throttle-body-kit-ckfd12

Dry sump system Ford/Jaguar V6 3 stage
http://www.paceproducts.co.uk/pumps-and-dry-sumps/dry-sump-kits/

Clevite bearings
ARP Head and Main bearing studs

Forged Con Rods, not decided on make yet there is a UK company producing them but seem a little expensive
http://www.arrowprecision.com/connecting-rods/96-ford-duratec-jaguar-30ltr.html

I am developing ITB for my engine currently as am moving to DBW, mine is charged and running silly power so I have gone for 50mm units. I looked at Jenvey but the conversion is £2k so I decided to design my own. This is a prelim mock up on my dummy engine, i will quickly progress this over the next month or so as I want them on the car ready for mapping in April.

IMG_4412_zpsel7uwqsq.jpg


I looked a dry sump system but instead designed a new wet sump with large wings and baffles and trap doors, I have a motec ecu and log the oil pressure and it has eliminated oil surve completely, some of us run 305mm slicks and compete in the GT3 series so its well proven now and half the money the dry sump is.

I use clevite bearings and ARP studs and bolts.

I use Arrow forged rods, good for 3 times what you plan to run power wise and I rev the engine to 8000rpm... I have seen the xpower ones and the guy is pretty local to me but not seen them yet so can't comment if they are up to the job.
 
Thanks for the reply and information, would you have any more details of the wet sump you are using possibly a couple of pictures

Peter
 
Well it's been a while but things are finally coming together

Brand new engine purchased

Jenvey 45mm throttle bodies and manifolds purchased

Finally got a Pace dry sump system purchased

Clevite Mains and Big bearings purchased

Decided on Arrow rods purchased

Pistons are coming from JE ordered and paid for

Heads CNC ported done awaiting valve springs

Cams and valve springs will be Piper 320 non VVT

Struggling for ARP Main studs, hylix can you help, NPG emails not working

Will post pictures when I start building
 
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