Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

engine advice needed

Tech Talk for Rover owners.

Moderator: Micka

Post Reply
Posts: 119
Joined: Mon Mar 24, 2008 1:56 pm
Location: melbourne

engine advice needed

Post by Ye Olde Rangie »

Hi, just wanting to know how hard it is to fit a injected 3.5/3.9 to a classic rangie it currently has a 4.4 in it which has seen better days so is it worth the hassle of going injected or just throw the std 3.5 carbie into it. Thanks
1981 range rover- 4"coil + 2"body rollcage, disco interior and goes better than a pootrol
Posts: 490
Joined: Sat Oct 30, 2004 3:44 pm
Location: Sydney

Re: engine advice needed

Post by Philip A »

I have fitted "Federal" injection to a 77 and IMHO it is not worth it.

I expected a great increase in fuel economy but really nothing much compared to well tuned Strombergs, and no real extra power.
However my engine was a High comp 81-85 and these had a very poor cam.

I would overhaul Strombergs now including new needles and main jets as these wear.
I remember on a club trip before I did the injection I had the best economy of any of the petrol RRCs and Discos.

The best thing i did for economy was to fit a Fairey Overdrive but it drove SWMBO mad changing 2 sets of gears.
Regards Philip A
Posts: 119
Joined: Mon Mar 24, 2008 1:56 pm
Location: melbourne

Re: engine advice needed

Post by Ye Olde Rangie »

sounds like the 3.5 is the go then all i need to do now is find one for the right money, anyone on here got one for sale?
1981 range rover- 4"coil + 2"body rollcage, disco interior and goes better than a pootrol
Posts: 1175
Joined: Wed Jul 27, 2005 10:17 pm
Location: Mirboo North

Re: engine advice needed

Post by 6.5 rangie »

i'd rebuilb or stick another 4.4 in, 3.5 is not really a power house. plus your already set up for the 4.4
Damien


--------------------------------------------------------
Posts: 119
Joined: Mon Mar 24, 2008 1:56 pm
Location: melbourne

Re: engine advice needed

Post by Ye Olde Rangie »

yeah true i am happy with the power or more than it should have and where would i get parts from for the 4.4 everytime i need stuff for it i always struggle and the cost to rebuild it im expecting is going to be very costly
1981 range rover- 4"coil + 2"body rollcage, disco interior and goes better than a pootrol
Posts: 490
Joined: Sat Oct 30, 2004 3:44 pm
Location: Sydney

Re: engine advice needed

Post by Philip A »

sounds like the 3.5 is the go then all i need to do now is find one for the right money, anyone on here got one for sale?
Look, I wasn't really commenting on whether a 3.5 is better, I was saying do not bother about the injection. 3.5s are more robust than 3.9 or 4.6 however.
A 4.6 will run well on carbs. The basic block is functionally identical.

And if you can get a 4.4 done economically, then that is also a good option.
Regards Philip A
Posts: 266
Joined: Sun Jan 11, 2004 1:41 pm
Location: Brisbane

Re: engine advice needed

Post by Hobie18 »

There are a few rebuilt 4.4's on ebay, alternatively what parts are you chasing, we have 2 sitting in the shed since we've just changed to a 3.9 with ZF from 4.4 with torqueflight. Its been a complete pain to swap but thats more to do with the bloke who was supposedly doing it. :bad-words:
Posts: 119
Joined: Mon Mar 24, 2008 1:56 pm
Location: melbourne

Re: engine advice needed

Post by Ye Olde Rangie »

well its a 4.4 with a 4 spd manual thats breathing very heavy and has a few knocks and leaks so id like to if i can find the parts/afford it rebuilld it so the works. rings,bearings etc
1981 range rover- 4"coil + 2"body rollcage, disco interior and goes better than a pootrol
Posts: 490
Joined: Sat Oct 30, 2004 3:44 pm
Location: Sydney

Re: engine advice needed

Post by Philip A »

I bet someone here can help you with parts sources etc. Maybe join.
Regards Philip A
whoops
http://www.leylandp76.com/" onclick="window.open(this.href);return false;
Posts: 50
Joined: Sat Apr 25, 2009 6:07 pm
Location: Newcastle

Re: engine advice needed

Post by Phatmoe »

[quote="Philip A"]I have fitted "Federal" injection to a 77 and IMHO it is not worth it.

However my engine was a High comp 81-85 and these had a very poor cam.[quote]

Just out of curiosity what did you mean by "Poor Cam" ?
1983 4 Door, 4Spd 3.5L Range Rover and I Love it
Posts: 995
Joined: Sun May 01, 2005 2:55 pm
Location: Tamworth

Re: engine advice needed

Post by Turbo Tonka »

basically ryan your shyt is going to fall apart :finger:
sierra truggy,37 sticky treps,propane,6.5s and disconnect,lux diffs with spools,16" fox shox,hydro steer.
Posts: 50
Joined: Sat Apr 25, 2009 6:07 pm
Location: Newcastle

Re: engine advice needed

Post by Phatmoe »

Useful advice Apps. Cheers for your input.

Yours just jealous. You know your itching for a Rangey.
1983 4 Door, 4Spd 3.5L Range Rover and I Love it
Posts: 490
Joined: Sat Oct 30, 2004 3:44 pm
Location: Sydney

Re: engine advice needed

Post by Philip A »

My understanding is that the 81-85 high comp in Australia only had a unique cam with close lobe centres to meet emission regs .
These motors also had an air injection pump with 4 ports into the exhaust for afterburn and unique aircleaners with heating from the exhaust manifold .

I know mine didn't go anything like one I later drove with a non emission engine or in fact my 81 in Saudi with no emission stuff and low compression engine and a worn out cam.
Regards Philip A
Post Reply

Who is online

Users browsing this forum: No registered users and 39 guests