fromtib27

iTrader: (2)

Cool swap, I've been debating on a swap like this. I want to put the 4bt cummins turbo diesel engine in an fd. I assume ill have the same problem with the height for the hood to close but luckily they make plenty of ways around that with the fd's and the 4bt makes a decent bit of HP and an Insanr amount of torque but ill need a new trans and rear to handle it, so should be a L costly but I got money saved up for it.

12arotary.

I love cummins engines they last forever and i thought about looking into a 4bt swap before too but there is a very good reason I took that idea and tossed it in the trash- The 4bt has a weight of 745lbs!!!! Just the engine! the 12a i took out of mine weighed 310lbs (complete motor minus the flywheel) the 2.2 diesel i stuck in only weighs 390lbs (minus 45lb flywheel) and will still make 100hp 150ft/lbs so if you are willing to work with double that weight for 130hp /355ft/lbs have at it but I would advise looking into importing something else- there are many aluminum block turbo diesels in various things that you can get for far less than the cummins- they really are truck motors.

12arotary.

Budget build surge tank using Pvc a pvc float and a mercury switch on a lever to maintain half full (1 liter)
its the best way i've found to be able to switch back and forth from veggie oil to diesel without wearing out the veggie pump or clogging the filter because its only running when the surge tank is low instead of non-stop

flyboy333

The bigger question is how will you make a transmission designed to hold the measly torque of a 12a withstand the (in comparison) mountain of torque from a 302? T-5 my friend, makes everything easy cheese.

12arotary.

now with boost

12arotary.

just waiting on more IC pipe and glow plugs then i should have it on the road

12arotary.

http://www.youtube.com/watch?v=VSiqPDJIc4E

I know, its not the most interesting swap as most people don't swap to a lower power motor but its getting 47mpg- I still have the 3.90 rear which puts the rpm's much higher than they need to be, i'll be swapping over to a mustang 8.8 with 3.27 soon. hopefully that will put me over 50mpg on the highway

dbragg

iTrader: (7)

I think this is an awesome idea. I don't know too much about that particular engine, but I would rock an efficient 1st gen as a DD if I could. I give you props for doing something original and economical.

How many miles have you put on the swap? Are you choosing the 8.8 rear just for the gearing availability? If you aren't building for power, that just seems like a lot of excess drive train weight, money, and work for 3 mpg, to me. Have you looked at other lighter options?

Keep up the good work!

12arotary.

Thanks, so far i've only driven about 250 as i'm still working the bugs out of everything and the 8.8 is readily available if you have a better swap let me know! I've never paid much attention to what drive trains are under cars so i dunno many of my options to swap- highway top speed is around 85mph and 65 is pretty much top speed for any cruising length right now, since i do a lot of highway driving i would really like under 3.4 rear which is why i thought the 8.8 with the 3.27 would be a good candidate but if you know of something lighter/cheaper/easy to find lmk!
my original goal was 100hp 150 ft/lbs and i don't think i'll ever go more than that so it doesn't need to be a beefy rear

Narfle

iTrader: (16)

I'm usually a purist. But, this is a great swap. Really neat stuff.

overpaid4myfc

iTrader: (14)

it must be amazing to get 50mpg in a car you absolutely love to drive.

MK3Brent

iTrader: (6)

Very nice and quiet, not what I was expecting.

12arotary.

It surprised me too I was expecting it to be very loud and have a ton of vibration instead its pretty quiet and very smooth

aa35199

iTrader: (1)

Oh for god sakes if no body will bite I will!
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So................. is it, fast?........................or faster?'
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No, it doesn't even matter, its such a cool swap
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Seriously though, the concept of a diesel sports car makes me very tingly, finally some one to stand up to all those big turbo tdi Jettas and Golfs.

2GSLSE

iTrader: (6)

Hmmm... now that I have seen a b2200 turbo'd I think it would be an excellent swap into a 86-92 b-series extra cab for a daily driver and prob not lose any power since the b-2000 was only 80 hp brand new. Thankyou for giving me an idea for my next project if I ever get caught up with everything else.

12arotary.

thanks for the compliments!
when compared to the stock 12a it came with its faster, at least it feels that way, the way its driven really is a huge difference from the rotary as it pulls much harder at low rpm's.

i'm a member of a biodiesel co-op here and i'm the only member who drives something other than a Mercedes or VW so its going to be nice rubbing rwd in their faces, rwd that isn't 4200lbs

If you can find a b2200 diesel go for it! I now own two of this engine and both have yet to give me any issues. Perkins made a quality engine that accepted boost amazingly, and feels like it probably should have come this way from the factory, even with an inter-cooler their is hardly any lag. my next projects on it are a getting a tach and modifying the injection pump for boost fuel enrichment which from what i've read on the mazda truck forums seems like its pretty easy- I should have this thing out and touring the country by the end of summer!

krazy4

Awesome swap!

2GSLSE

iTrader: (6)

If you can find a b2200 diesel go for it! I now own two of this engine and both have yet to give me any issues. Perkins made a quality engine that accepted boost amazingly, and feels like it probably should have come this way from the factory, even with an inter-cooler their is hardly any lag. my next projects on it are a getting a tach and modifying the injection pump for boost fuel enrichment which from what i've read on the mazda truck forums seems like its pretty easy- I should have this thing out and touring the country by the end of summer![/QUOTE]


Finding the truck isn't the problem there is one sitting at my dad's garage with a bad 5th gear (IIRC) and a rusty body. I have a S5 rx7 turbo laying here in my shop now all I need is something to use it in but I will be watching this thread for any info or links to anything usefull to the diesel.

90turbo1

wow sounds very nice when running, wouldnt expect it to be a diesel

aa35199

iTrader: (1)

FYI I read the ring and pinion from a diesel mazda b series pickup may bolt into a stock fb rear, perhaps other forum member could confirm this or let me know I'm mistaken. I read this on a v8 rx7 swap related website a while ago.

12arotary.

why would you want to swap that in? the rear in my 84 b2200 diesel is a 4.10 and the one in my fb is a 3.9, so i guess if I wanted the top speed to be 65 I've actually been thinking about sticking the gsl rear in my truck when i swap it out because the trucks final drive is so shitty on the highway

aa35199

iTrader: (1)

Never mind, for some odd reason I thought they were lower. Let that be a lesson, don't post based on info you read years ago, from a website you can't even remember.

12arotary.

This project has spent a lot of time in the garage but here it is up and running.






I lowered the engine 4 inches and changed the mounts to proper rubber.



the hood closes now.

dbragg

iTrader: (7)

Nice!

Super late response, but members have ran the Toyota 8" rear end with success. Not sure of the gearing options, but it's a eight savings over an 8.8 and a proven rear end.

Will you be DDing this anytime soon?

Love the hood art.

12arotary.

the toyota rears I've looked at were 4.10 to 4.55, the b2200 had a 4.4 rear so the 3.90 in my car isn't that bad. The top speed in the b2200 was 80-82 and the rx7 will do slightly over 90 (theoretically of course) I've been driving it around every weekend and working out the kinks before I can DD it, gets upper 30's all city driving so not bad.



Easily the lowest power swap ever.