pickme
672 posts
Joined: 08/09/2004 23:10:14
Location: Chippenham United Kingdom (Excluding channel Islands)
Carb vs Injection
Looking solely at the processes of induction and power output, which is better carb or injection? Which carb - HIF44, Webers, Nikki, etc? Which injection - SPi, MPi, Weber, others? Im looking at options for next years sprint season so this would probably be strapped to a 1340 A series. Oh, saw this on ebay - http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=72205&item=7955311456&rd=1#ebayphotohosting Triple Webers anyone? :-D
Posted: Mar 01, 2005 05:07 PM
Brannon
1 posts
Joined: 10/02/2005 20:25:23
Location: Portland, Oregon United States
Injection
Posted: Mar 17, 2005 01:43 AM
referee
5 posts
Joined: 02/10/2004 07:36:22
Location: GOBOWEN United Kingdom (Excluding channel Islands)
1380 into injection mini
I think you will have trouble finding evidence of a successful conversion retaining standard injection. Swapping to a carb(s) setup will reap dividends, otherwise if you have big pockets, then go down the route of programmable injection. Try http://www.bgsoflex.com/megasquirt.html where you will find info on building your own system, awesome!!
Posted: Mar 24, 2005 11:52 PM
Fat Kev
58 posts
Joined: 19/04/2005 18:16:21
Location: Newmilns United Kingdom (Excluding channel Islands)
I think the anaswer is simple - what are you more familiar with? Thats always going to be the most important factor - isnt it? Please correct me if Im wrong, but unless you spend A LOT of cash on injection (at least £1500 I would guess) on an A series, it wont really be much better for peroformance than carbs. Thought the reason for this was the shared ports and so on. Bang for buck I would say carbs. I think well set up twin SUs or a single modded 1.75 SU on good inlet manifolds (maybe even chromed?) are great for keeping the car versatile. Why do SUs seem to get a bad name? Do the right things to them and they are great on performance A serie engines.
Posted: Apr 25, 2005 07:39 PM
Pablo
142 posts
Joined: 28/10/2004 09:04:37
Location: Glossop United Kingdom (Excluding channel Islands)
injection v carb
....and besides, carbs give much better performance all round - fuel injection was introduced for economy / emission reasons, not performance. Good to hear that you get good performance from your spi though pickme.
Posted: May 16, 2005 09:40 AM
umby
2 posts
Joined: 16/09/2004 08:56:16
Location: parma Italy
which injection kit
hello, does anyone know about good reputation of Omex injection kit for MPI mini? Mine is a 2000my with Minispares stage 3 head, RC40 complete exhaust, 1,5 roller rockers. As the cost for such kit is high it would be pleased if someone has more information about it. ciao
Posted: May 28, 2005 04:30 PM
neil
18 posts
Joined: 31/10/2004 18:51:45
Location: PRESTON United Kingdom (Excluding channel Islands)
1275 CC NON INJECTION(1994)
@ present in standard form apart from a DTM hanging off the back end from CAT.Recommendations/Advice required regarding removal of Cat.Fitting of upgraded inlet manifold and exhaust manifold. I have in garage a cooper freeflow 3/1.Is it true that these are best suited for 998cc due to bore size or would it be of some use to the above?THANX in advance
Posted: Aug 26, 2005 06:47 PM
Pete
8 posts
Joined: 02/11/2004 17:14:20
Location: Kingsbridge United Kingdom (Excluding channel Islands)
Injection to carb !!
Aye,aye D, I read this artical in MM. I was talking to one of the mechanics at my local MOT garage. This bloke is well versed in all things Mini and he took a sharp intake of breath when I was discussing the pros & cons of this project.He agreed that although, in principal, there is nothing illegal in a swap, he questions whether the MOT parameters for the year of vehicle could be achieved ? His argument is that Rover designed and fitted injection and CAT to comply with regulations on emissions and to remove any part of the system might compromise the cars ability to conform when the MOT test is done.As this artical was written by Keith Calver (for whom I have the greatest respect), I would like to hear from the man himself who, will no doubt shoot my argument down in flames!!! All food for thought! Pete
Posted: Nov 12, 2005 11:28 PM
beanie
Joined: 13/03/2008 19:31:48
Location: cambridgeshire United Kingdom (Excluding channel Islands)
mini mayfair,1994 1300 injection throttle cable
hello all,which throttle cable on mini spares will i need for my mini mayfair 1994 1300 injection do not want to buy the wrong one im not sure about the "ports"? for my car in the listings,thanks.
Posted: Mar 13, 2008 07:53 PM
John
1948 posts
Joined: 28/05/2006 16:49:46
Location: cambridge United Kingdom (Excluding channel Islands)
http://www.minispares.com/Product.aspx?pid=33059
your mini will be single point injection right hand drive i assume, ps where in cambridgeshire u live ?
Posted: Mar 13, 2008 09:20 PM
hello,yes it is r/h drive and im in sunny st neots...
Posted: Mar 13, 2008 09:29 PM
shane
Joined: 02/06/2008 11:18:05
Location: Australia
tuning single point injection
hi there i have a 1380cc with a mild cam with single point injection (1996 model)front end in a 1977 model clubman,i was looking for information on tuning them.the injection system seems to be pumping to much fuel into the engine.the engine blows light brownish smoke out the back(exhaust).the air filter/box/computer etc is standard with a couple extra holes cut in he air box to let more air in(experimenting).any information would be greatly appreciated.cheers.
Posted: Jun 02, 2008 11:34 AM
J. Clarke
firstly if its running rich its likly one of sensors isnt working either air temp sensor on intake or landa, corrded contacts can also be problem.
secondly if u want to get over 85bhp from injection mini u will need to either change ecu (expensive) or go over to carb like weber 45dcoe.
these are mods u can do before repacing ecu or fitting carb >
lcb with landa sensor hole no flexy link pipe reqired (£42), lcb back exhaust system eg rc40 kit (£50)
Airfilter either one in stock housing or separare one, K&N is what u want, £25-45
after changing ecu or going to carb then high lift rockers 1.5:1 (£130-180) and ported big valve head (£500)
end product about 90-100bhp
with that sort of power transmission will wear quickly tho, cross pin diff would help as standard diff will often brake its pin. and rebuilt box with new bearings straight cut if u want more bhp at wheels and arnt bothered by noicy box.
Posted: Jun 02, 2008 01:49 PM
s. baumer
hi there,shane from down under.as i've mentioned before i hown a 1977 mini with a 1996 model front end in it.i need to get information on tuning the single point injection.is there a book of some sort or websites about them?cheers.
Posted: Jun 18, 2008 09:14 AM
jag_clarke
injection
usually sensors playing up, there is an inlet temp sensor on intake and landa senor on exhaust. when these fail or have poor contacts then the engine will run excessivly rich and not well. landa senors are standard based on number of wires going into them so u should be able to pick one up for about £40 rather than about 90 on here. also cheak fuel filter isnt clogged and serivice ignition, leads, plugs dystrib cap.
Posted: Feb 10, 2009 12:18 AM
minilee
10 posts
Joined: 06/05/2009 21:34:55
Location: enfield United Kingdom (Excluding channel Islands)
still got problem with my spi injection mini
changed throttle sensor and temp sensor and new cap and rotor arm ,it still idles very bad but doesnt stall ,seems to be running very rich with lots of black smoke from exhaust , but drives great once moving
Posted: May 17, 2009 12:47 PM
Siukeong
Joined: 20/05/2012 17:40:57
Location: KUALA LUMPUR Malaysia
HIF carburettor with injection Fuel pump system
Hi mini technical,
Currently i install HIF38 carburettor with injection type fuel tank together with the fuel pump system, found that the output fuel pressure too high and make the engine cant running smooth. any solution help to solved it??
Thanks and regards
YONG
Posted: Nov 28, 2013 04:36 PM
Elton Carvalho
Joined: 05/07/2010 11:48:45
Location: PUCHONG Malaysia
Injection starting & Idling problems
In need of help. I recently bought an auto injection SPI engine and loom. I have installed it and it refuse to start on its own. If I pour some fuel into the intake its starts but when it warms up it dies off and refuse to start again. All the vacum hoses are good, fuel pressure is good, I have even changed a complete throttle body, Ignition coil, ECU, main relay and its still the same. All earthing points are good. Alternator is charging. I'm going insane. I really need some help here. Any suggestions?
Posted: Dec 08, 2013 12:10 AM
What first?
just rember you need cat for mot, when replacing exhaust you need a cat back exhaust system, if replacing manifold you need one for injection minis that have a sensor hole and flexible knuckle joint and cat flang, for airfilter you need one for a spi as equinox was one of last spi (single point injection) minis. it will change mixture automaticly to cope with this mild tuning so no need to change jets of needls. after that next targets for tuning are a ported head, high lift rockers or is you deside to remove engine an injection cam. i say injection cam as there are special ones made to run in injection engine that should allow them to keep within emishions regulations for mot. choice is limited but kent md274 or md274 sp piper bp270i,minisport cam270m id go for either kent or piper tho personally. if you dont want to remove engine high lift rockers are a good, cost 130 up depending on if they have roller tips, roller tips give less valve guide wear. as for exhaust as you have cat it will act to a degree as a first silencer so a single rear silencer will be ok.
Posted: Nov 19, 2007 05:47 PM
Carb or ecu
iv always preffered carb to injection as its simpler to work on and understand, id see if u can get your injection fixed first tho as its alot of hassel to change injection to a carb engine probley easyer to get a replacement carb engine from scrap yard or ebay or sumwhere. id say carbs engines are more reiable than injection engines as carbs dont really go wrong as long as u top up dashpot oil and rember to push choke back in after starting. the main reason engines went from carb to injection was to meet emishion reqirements, as an injection engine detects unburt fuel in exaust then goes puts in a leaner fuel mixture meaning u get lower emishions and better fuel economy in therory although with the restriction of catalist fuel economy is probly worse than say a 1275 gt model is had same final drive. i read in this mot criteria that if u fit a pre 1992 engine to ur mini where catalists wernt a leagal reqirement to ur post 92 car then ur car will be tested to pre 92 reqirements if u can prove with engine number the engine predates 92 "Test according to which is older, engine or vehicle. e.g. A 1995 car fitted with a 1991 engine (of whatever make), test to 1991 standards for emission purposes."
Posted: May 31, 2006 05:56 PM