Rootes Group Cars

Well for a long time my wife wanted a MGB for her then it was a Mustang but this past weekend she found a Alpine and fell in love with it.

So now I have a Alpine sitting in my shop in need of a conversion. She doesn't want a fast car and I dont really want to do a V-8 I have read about and looked a little into the 2.8 Ford V-6 (Mustang II) swap but that is way old and hard to find stuff, so anybody have knowledge of a differant swap maybe a modern 4 or V-6 I am looking at a 2.2 chev I4 at the moment and a little into the Ecotec 4 but any ideas would be helpful

Thanks

Joe

Has your wife indicated a preference for an automatic or a standard transmission as this will dictate your choices.
The Ecotec is an excellent choice and the bone yards are full of these engines. If you could get one from a Pontiac Solstice it would solve the issue of bellhousing and transmission. Your other option is to get a bell housing from Quads For Rods and hook up a Gm transmission to it. Just google this outfit and see what they have. They also make bellhousings for the Ford Zetec engine also so you could consider this as an option. If you don't like the idea of EFI this outfit also makes conversion kits to go to dual Weber carbs.
Another option is the GM 3400/3500 V6 and you can get the parts to convert these engines to RWD quite easily, just check British Car Conversions and you will see that these engines work quite well in MGB's. I have read that these engines do not fit the Alpine as well as the Ford 2.8 but I am sure these obstacles can be overcome.

Cheers
Byron

It will be a stick do you have any idea what the guys using Ecotecs are using for EFI management, Mega squirt or someone has the factorystuff figured out, if i was to go GM 60 deg v-6 I will use a RWD set up



Edited 1 time(s). Last edit at 07/11/2012 11:11PM by MGB SS.

Joe, The reason the older 2.8 V6(up to early Ranger's) fit so well is the Alpine steering. The GM V6 wont work unless you go to rack and pinion. There are some Toyota and Nissan 4's and Ford Zetec and Duratec swaps. I have a 65 that I'm putting a Ford V8 in. Check out the SAOCA forum for more info.



Edited 1 time(s). Last edit at 07/10/2012 10:35PM by mgb260.

Joe in regards to the issue of the engine management system in the Ecotec you should google The Bowtie TR6 website. This guy has put an ecotec from a Solstice in his TR6. His cousin has put an older Ecotec in his TR4 so you can e-mail these guys through the Bowtie website and maybe they will give you some help on the issue of the electronics.

Cheers
Byron

I have the 2.8 v6 in mine and am considering swapping it for a duratec/mzr 2.5. Bill on the saoca forum has the 2.3 duratec and it fits with a ranger trans. I believe the miata trans will bolt to the duratec and comes in both 5 and 6 speed, but I don't know if it will fit in the alpines narrow trans tunnel. Quad4rod makes a bell from the duratec to t5, but it had to be a v8 or 4 cyl ford t5. The 2.8 would be the easiest route to go as you cAn get a kit from Jose and its been done many times before. With the duratec or any 4 cylinder dohc you would have to make your own intake and headers and use megasquirt or some other stand alone system. I have the 2.8 with every bolt on possible and it gets 110 whp and 139 wtq on a mustang dyno. The Mazda 3 guys get about 155 or so whp and 160 wtq with only a cai and catback exhaust. The 2.8 with about as much as you can possibly do to it and be streetable only gets you about 180 whp from what I've seen on some Capri sites, and that's a lot of cash to get that. Plus the duratec is 100 pounds or so lighter. With the 2.8 I have about 54/46 weight distribution. The gm v6 I think is heavier do it would make the balance even more off, plus as mentioned before, you would have to redo the entire steering system. So to sum up, 2.8 is easiest and fastest and will give you 2-3 times the alpines original power. It makes a quick and fun car, parts are still available but are getting harder to find. Mine gets 20-25 mpg no matter how i drive it The mzr 2.5 with 2.0 head with intake and exhaust seem to be making a miata get to 60 in just under 6 seconds from what Ive read on a miata forum and the alpine is a little lighter. If I decide to swap I may have my whole drivetrain for sale ready to drop into an alpine with all mounts and brackets.

Isn't rack and pinion steering a pretty high priority upgrade too?

You can retrofit a MG Midget rack to the Alpine crossmember and get better geometry and Ackerman than the Tiger steering. Though the turning circle is larger. The stock Alpine steering works fine for the 2.8 Ford V6 and most 4 cylinder motors. It gets in the way of other swaps. The tie rods and center link swing through the rear of the engine bay.There are a couple of expensive aftermarket crossmember rack and pinion solutions. I am designing a simpler alternative, much less expensive setup.

The only thing wrong with alpine steering is all the moving parts take up a lot of real estate in the engine bay. A rack setup would open it up to a lot more engine choices but the few available are $5000 and up.

Another idea for a swap is a Misubishi Eclipse motor. You can use the Starion 5 speed and bell, or Mazda B2000 bell(had the SOHC version for a few years)and trans(or RX7 with B2000 tailshaft) or Jeep Liberty bell and Colorado/Canyon 5 speed.

A guy on the sunbeam forum did a mitsu engine and he had to leave off a fender. Race which apparently is a bad idea. The duratec has the injectors in the head, so you just have to make a plenum with the throttle body on it fit, you don't have to worry about injectors out there. I'm not sure of what the injector setup is like on the mitsu.

Wow
Guys thanks for the help, I was hoping the Gm V-6 was an opsion as I have one I may still set it in to look it over.

Not really looking for power this is for my Wife and MPG are more important to her.

If I need a spirited ride I have my B with 5.0

I have registered for the Saoca site but have not been let in yet been a couple days already.

I was looking into a steering crossmember change because of the goofy set up that it has but everybody says they drive ok so why go through the work and $$$

I was against the 2.8 Ford because almost exstinct but may have found one tonight so maybe, I assume Jose kit doesnt fit the 2.9?

I will check on the site for the tr4 & 6 Ecotec info I think that is worth exploring

Sorry getting tired

Joe, The 2.9 has a different exhaust manifold head pattern that the steering would interfere with. Robbie, I think the Mitsubishi swap used the stock EFI intake. If you make a custom one (like Bill Blue's) or independent motorcycle throttle bodies would work. Here is a link: [projectzerog.com]

I think there's almost 3 inches between the head and steering box/ brace/ master cylinder to fit throttle bodies, fuel injectors, etc into.

Make sure you get the timing cover, water pump, flywheel, and bellhousing for the Mustang II 2.8. The rangers won't fit, but you'll need the rangers rear sump oil pan and pickup. The T5 from a 3.8 mustang is what I'm using for the transmission. To register you may have to use a different email address. I know on a few forums I tried to register on, I never got the confirmation email using my hotmail account. I used a different email and it worked right away. That was on at least 4 different forums.

I received my conformation E-Mail and it tells me I am Registerd but waiting for the administrator to approve or something like that, I also E-mailed someone on the list of but still nothing.

Is there a complete list of Parts needed for the 2.8 swap listed on the Saoca site? I did look at a 2.8 today they are indead a small motor.

Joe

Everything I listed, Jose's kit, a Wilwood pull slave, I think the radiator modified and the thermostat housing modified. Make sure you use a new thermostat because that's probably the hardest thing to change once the motor is I. It took me less time to pull the motor than it did to change the thermostat. It's in a VERY tight place. It's a fun car with the conversion and the 2.8 is reliable. I suggest getting an all metal timing gear before you put the engine in and it will run for a long time. Go to YouTube and search for my username If you want to see some videos of one.

Robbie

I will check it out and thanks for the list.

I have been accepted at thye Saoca so I will be on there as well now.

Joe

I am looking at putting the 2.2 Gm 4 cyl from a S-10 in. Not very exciting but I think I can get everything I need from 1 Donar Vehicle, keeping costs down, again this is for my Wife and she is more interested in the MPG than performance. But the 2.2 is still over 100 hp much better and more modern than the Alpine set up.

Also there are Turbo kits available for that engine if power became an issue.

just because you can get it for cheap doesnt make it a good candidate measure the width carefully i think youvonly have something like 21" wide to fit everything into thats what makes a newer 4 cyl easier to work with... the injectors are in the head, so you dont have to try to build an intake with the fuel rails, injectors,etc in just a very few inches of space im not saying it cant be done but just measure everything realistically before you grt started. you did a swap on an mgb which has a huge engine bay compared to an alpine, so dont assume you will have anywhere as much room as youre used to with the B. over the years there have been many cut up alpines given up to die after someone chopped them way up for an engine and got it in to realize the car wasnt able to turn afterwards and ended up being parted out. If you switch to a rack and pinion, that would open up a whole lot more engine choice. The 2.2 may fit, i dont think anones attempted it before, you just may have to build your headers to go forwards then loop back around.