4.6 or 5.4 in an RF kit

Patto · 05-08-05, 11:29 PM

Hi
I am just starting to research buying a kit and am looking at getting a RF kit. In Australia we have pretty strong pollution laws that now rule out 302 motors, so I am looking at getting a 4.6 or 5.4 mod motor, but these are not redily avalable in oz.
2 questions
How easy is it to get performance parts for both 4.6 or 5.4 motor, ie heads, intake, cams and stoker kits etc in America. I have looked at Summit parts but there doesn't seem to be much available.
Can any one give me the dimensions of both motors ie width and height and are the 2 motors the same external block shape ie mounting point.
Thanks heaps [img]/ubbthreads/images/graemlins/crazy.gif[/img]

Steve Kulper · 05-09-05, 12:06 AM

James

You have a pm

Steve

Steve Kulper · 05-09-05, 12:15 AM

Try this as well http://www.seanhylandmotorsport.com

TimOz40 · 05-09-05, 02:26 AM

Hi James,
I too live in the "green" state of NSW. I am eagerly awaiting delivery of the FIRST TURNKEY RF with 4.6 Cobra engine.
My car fired up at the factory 2 weeks ago, and they are madly tuning in order to take the car through ADR79/01 real soon.
If you want info, let me know. I have lots of pics. Robert actually suggested, just last week, that i start a builders forum thread with some pictures. I have kept fairly quiet about it all up till now. [img]/ubbthreads/images/graemlins/smile.gif[/img]

Regarding hot-ups. I have the Sean Hyland book. Happy to lend it to you. There are now some parts coming through. I have seen photos of the 8-stack throttle body setup whic will eventually find it's way onto my car. It looks very nice indeed. [img]/ubbthreads/images/graemlins/cool.gif[/img]

Patto · 05-09-05, 08:53 AM

Tim
Would love to catch up. Email me if you are happy to. Did you consider a 5.4. Robert reckons they are too high to fit.Are you going to do any mods other than the 8 stack
Cheers

Mike Dozier · 05-09-05, 01:51 PM

Don't forget to check out DRB...they've installed mod motors
in their GT40 as well....looks impressive !

MikeD

TimOz40 · 05-09-05, 06:46 PM

James,
Check your mailbox.

Pete. · 05-10-05, 03:35 AM

Patto check here http://www.gt40s.com/ubbthreads/show...0/page/0#56795 might answer some questions for you. [img]/ubbthreads/images/graemlins/wink.gif[/img]

DAZPT · 05-10-05, 08:51 AM

You have mail

Darrell Peattie

Bill Hara · 05-11-05, 12:07 AM

Isn't there a 5.0 litre "cammer" version of the 4.6 DOHC motor?
I was under the impression that you could stroke the 4.6 to 5.0 litres, thus having a "5.0 Litre" GT40...

Input anyone?

Bill.

TimOz40 · 05-11-05, 12:36 AM

How deep are you pockets?

CAMMER ENGINE

It seems anything is possible. Prices should come down at some stage.

TimOz40 · 05-11-05, 02:49 AM

I notice that the 4.6DRB is a QLD registration. There are more 4.6's on order. Does anyone know what DRB are doing regarding ADR emissions certification for the 4.6 engine. and of course, registration in NSW (and soon to be other states of Oz)?

Bill Hara · 05-11-05, 10:49 AM

[img]/ubbthreads/images/graemlins/shocked.gif[/img]
Wow Tim, I didn't realise that engine was more than double the price of the 4.6 Cobra engine.... On top of that, the 5.0l cammer is not emission compliant, so that would mean registering your car with the 4.6 and then doing the swap, so that makes it more than 3 times as expensive......

Ouch.

Peter D · 05-12-05, 03:47 AM

Tim - for NSW ADR compliance - see Trevor Booth's post :

http://www.gt40s.com/ubbthreads/showflat...=true#Post55592
_________________
"Registration of an ICV in NSW is not impossible. The problem has arisen from some clowns here in NSW misrepresenting certain things and blokes fronting up with specialist built 8 stack EFI with re-programmable computers and not a hope in hell of meeting ANY emission standards, so the RTA had to act in the interest of other road users. Its the old bad apple story.

Some pre release info for you. The RTA has revised the regulations in relation to emissions. Engines may be up to 3 years old on a rolling basis. Limits are now set for the IM240 test for engines that are not known to comply. HC 0.1, NOx 0.2, CO 0.7, Values are g/klm. If you do the research you will be suprised at what engines you can use.
________________

The key words are "not known to comply" - my guess is that if you have a stock engine less than 3yo, stock ECU, CAT's, you should be able to just get automatic approval with no emissions testing.

Perhaps its best to double check with Trevor.

Kind Regards,

Peter D.

TimOz40 · 05-12-05, 06:30 PM

Yes Peter, but this applies to ICV's. A car built at the factory is NOT an ICV, since it has not been constructed by the individual. There is a "grey" area here that builders must be aware of. I think Trevor eluded to this in his original post. RF are actually taking their car through Low Volume Compliance so that factory built cars can be sold fully complianced. So, as i would understand it, the options would be:
1/ Build your own as an ICV with a 3 year old compliant engine, OR do the IM240 test with an unknown engine
2/ Turnkey car with LVC and compliance plate.

This is my take on how it works. Happy to be proven wrong. It happens all the time. [img]/ubbthreads/images/graemlins/smirk.gif[/img]

Trevor Booth · 05-13-05, 02:14 AM

You are not wrong this time Tim, spot on correct.

TimOz40 · 05-13-05, 09:06 PM

Pheeeew! [img]/ubbthreads/images/graemlins/wink.gif[/img]

Joe Angers · 05-24-05, 11:21 PM

I'm glad to see the Mod Motor starting to get some love.

A couple of things I'd like to add.

The hot set-up to go with is definitely the 2003/2004 Supercharged Cobra. From the factory it was rated at 390 hp and 390 ft-lb of torque. Both those numbers were underrated, as Dyno tests showed the car actually made close to 440 hp at the crank.

Now Ford's offering a supercharger upgrade that consist of a Whipple Intercooled Twin Rotor Supercharger that adds another 80 hp, all emmissions legal. Ford even built an SVT Cobra putting 601 hp and 529 ft-lb of torque AT THE REAR WHEELS. All using street legal, emmissions compliant parts from their catalog. Here's a link to the article on the car from edmunds.com

Inside Line: Horsepower, Ford's 690 hp SVT Mustang

It just goes to show the performance potential of the Cobra engine, especially when emmissions and street legality come into play.

Ron Earp · 05-24-05, 11:31 PM

Joe, completely agree with you and definitely borne out with tests with 03/04 Cobras, Lightnings, and the new GT. But the engine is huge - with the blower it is incredibly tall and doesn't appear that it woould fit in a GT40 in the Ford configuration. Of course, if it was altered to a configuration that pulled from the back and blew through the bottom it would help a lot with routing and piping.

R

Joe Angers · 05-24-05, 11:38 PM

Ron,

We have a customer at the dealership I work at who has his 2004 SVT Mystichrome Cobra serviced by us. I had a chance to take a good look at the Supercharger assembly and the positioning of the throttle body.

The pipe that attaches to the throttle body on the Cobra bolts directly to the inlet at the rear of the S/C. Therefore, it's possible to fabricate an inlet that places the throttle body at the rear of the S/C. and not having it rest on top. With this set-up, the engine is not much taller than a non-supercharged engine.

It would be very similar to the set-up used in the Ford GT.