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Depends how old the V8 you would be putting in will be, if it is quite new then you will need the gearbox aswell, It will not be easy by any means and yes there will be issues with ECU's, vibrating propshafts, overheating etc etc etc, If your engine is knackered then maybe it is worth the expense and trouble, if not then stick with what youve got
That makes it easier if you have access to the whole car side by side with the G wagen, you need to do some more research on the actual engine and gearbox from the donor car (serial numbers etc) so you can see if they were ever fitted to the 500GE from 1993? Certainly seems easier than just an engine arriving on a pallet anyway....
you need to use the S class gearbox that came with the car, the exisiting manifold are a tight fit, very tight, the G500 manifolds are around £900 for the 2 if you want to make life a bit easier, on the old 500 and 560 the ecu didnt really do lot. you need the 500 engine mounts. its a lot of work mate. My advise is forget it, wait a while and pick up a real 500 G
My advise is forget it, wait a while and pick up a real 500 G
Totally agree.
PeterPerfect owns(or used to, don't know if still?) a converted 463. I used to have a converted 460 with a 380 engine. Previous owner spent thousands getting a lot of the work done by a motorsport workshop who supposedly knew what they were doing. They did NOT!!! When I got it, I spent another two weeks non-stop sorting all the little(some not so little) annoying problems until it was near perfect and then it was good. Someone came along and offered me crazy money so I let it go. But I learnt a lot in those two weeks and will probably do another in the future with a 420 engine, only with aftermarket ECU, throttle bodies and manual transmission. The Mercedes injection/ignition system was top notch at the time but things have moved on and its now far too complicated and unreliable.
With your planned setup, your biggest headache will be the wiring - visualise pulling two vehicle's looms apart and making up one system... :shock: Go and pull away the covers around the s500's fuse box and you'll see...
The 300gel is a fine vehicle, don't mess with it is my advice. If your engine is knackered, there's plenty good ones about. I actually happen to have one.
Quote:My advise is forget it, wait a while and pick up a real 500 G
Totally agree.
PeterPerfect owns(or used to, don't know if still?) a converted 463. I used to have a converted 460 with a 380 engine. Previous owner spent thousands getting a lot of the work done by a motorsport workshop who supposedly knew what they were doing. They did NOT!!! When I got it, I spent another two weeks non-stop sorting all the little(some not so little) annoying problems until it was near perfect and then it was good. Someone came along and offered me crazy money so I let it go. But I learnt a lot in those two weeks and will probably do another in the future with a 420 engine, only with aftermarket ECU, throttle bodies and manual transmission. The Mercedes injection/ignition system was top notch at the time but things have moved on and its now far too complicated and unreliable.
With your planned setup, your biggest headache will be the wiring - visualise pulling two vehicle's looms apart and making up one system... :shock: Go and pull away the covers around the s500's fuse box and you'll see...
The 300gel is a fine vehicle, don't mess with it is my advice. If your engine is knackered, there's plenty good ones about. I actually happen to have one.
A very fine piece of advice and totally for free... I love this forum.
And if you want to read my opinion too, read on.
The M103 engine is a fantastic engine. Just keep it in top condition and enjoy it.
nks
Hi if you don't mind a slightly crisp exhaust note removal of most of the original system and fitting a Powerflow system to the drivers side of the vehicle will allow the engine to "breathe" more freely with some improvement on performance.the 602 engine is "old hat" and will not improve much whatever you do... dwell angle and ignition timing set up to suit the engine not the book can add a bit more....the fact that it is permanent 4 wheel drive means there a lot of cogs to turn and not much torque to do it. you should try a 460 diesel auto....now that's slow.....
Hi sorry should read 103 engine not 602 ...must have been thinking of the lottery...
Again any advise on tuning/performance tips greatly appreciated, to refresh this is a 93, k standard 3.0 LWB RHD
I have never had any complaints with the acceleration and performance with this engine, It pulls well from 10mph (once the weight is rolling) and if you hit the kickdown it still surprises me how quick it can move. Granted it is not as quick as a car but not too shabby for a full size 4x4. I have only serviced mine to keep it tuned, so check the ignition leads, spark plugs and change the air filter if it is dirty and it should be making at least 170 horses, does not take much to put these engines out of tune and then all you are doing is burning fuel with no real oomph.
nickchalkley wrote:
Again any advise on tuning/performance tips greatly appreciated, to refresh this is a 93, k standard 3.0 LWB RHD
I have never had any complaints with the acceleration and performance with this engine, It pulls well from 10mph (once the weight is rolling) and if you hit the kickdown it still surprises me how quick it can move. Granted it is not as quick as a car but not too shabby for a full size 4x4. I have only serviced mine to keep it tuned, so check the ignition leads, spark plugs and change the air filter if it is dirty and it should be making at least 170 horses, does not take much to put these engines out of tune and then all you are doing is burning fuel with no real oomph.
170 horses ?? Does this mean the m103 is detuned for the gee as well as the m110 engine ? Only asking as ive just fitted a coupe m110 to my 460 to give more oomph, i'm sure the last 300se i had was more like 195 horses, could be of interest to 300gel owners with a suspect engine to da a saloon engine swap (altho mine was a PITA)........
They are a bit less powerful I think the 300se is about 185 hp and the g for whatever reason 170 (maybe the complicated air intake and exhaust??)
uykg
Wow Alpina power is alot to live up to!!
Get the Bosch original leads probably from Merc unfortunatly, distributor and rotor arm probably from dealer aswell. Get the CO checked and adjusted once you have finished replacing parts as you may be missing some power after you changed your exhaust. K&N make an upgrade air filter for these engines, if you buy this get the CO adjusted after fitting for max effect.
For manifolds you can have custom headers made or a one piece but again custom job. Cheers Alex
Alex
Thanks for the reply, yes I had the set up done after the exhaust and it has a K & N already, I think I need to go back to the exhaust place (Hayward & Scott) and get them to do the manifold as well, I 'm sure that will be cheap (not !) I think I've definately got to go with leads, cap and rotor arm before I do anything else, its due a service anyway.
Thanks again
Nick
Sounds like you have done most of the upgrades already should have put the power up a fair bit, when you get the service done get the fuel filter changed this can affect power and ask for Mobil 1 0w-40 has been super smooth in my 300 GE, Maybe some injector cleaner for good measure then you will be all set to take on any 4x4's even some of the V8's 8)
They are a bit less powerful I think the 300se is about 185 hp and the g for whatever reason 170 (maybe the complicated air intake and exhaust??)
M110 engine is detuned from the saloon/coupe tune of 180 HP to the GWagen's 150/155 by means of lower compression to allow for the low octane petrol you can find in most African countries.
But M103 engine I believe has the same pistons/camshafts as in the saloon/coupe tune and the difference in power from 185 to 170 HP is down to the convoluted exhaust and the intake dust/water separators
Where are air dust/water seperators located and can they be removed ????
I am going to bite the bullet and go for custom made 6 branch manifold into my stainless system and see how much more power I can squeeze out that way !! Has anybody ever built a turbo for this engine ????
Nick
Turbo M103 Has been done but wouldn't recommend it :D (it will take the power easily though up to about 500 hp)
Why wouldnt you recomend it ????? I wouldn't do the whole blue bling thing, (clearly this has to be an american car, nobody else could make so much money spent look in such bad taste !!!!) Seriously who made a turbo, who has a turbo are they still available ????
It was a Swedish Russian guy and he promptly blew this engine up after constructing it (I think he would blow any engine up though so maybe thats nothing to do with the conversion job :D ) Fair point though skip all the blue colour stuff and just go for the turbo and would be quite an engine!! bear in mind though it has huge injectors, standalone ECU etc etc so plenty to think about. Website is www.turbobanditen.se Cheers Alex
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