OBDI or OBDII price range help

if your not sure or dont have relative experience, dont give advice.

check out the engine management systems. there is a lot of differences between obd1 and 2. ews key rings, dme's need programing - not just a chip, exhaust air pump, blah blah blah.

Think about it for a second, if you have a complete m52 and you drop it into an e30 then all you really need to do is figure out the obdII electronics. If you want obdI then you're going to spend almost a grand buying m50 parts and modifying others. I find it ironic that you call me out but your post contributed nothing to this thread.

[Super Eurobeat]

hey guys, what is an OBD?

[nes85er]

There is one guy on r3v who put an M52 in his E30 with the OBD-II electronics. He does not have the secondary air pump installed, nor is it an absolute requisite to install it in order for the engine to fire or run properly. It's just an emissions device that likes to crap out on you. :) The OBD-II engines also have four O2 sensors, two of which are absolutely necessary for proper engine feedback, and two downstream units that you can run without (IIRC).

The OBD-I swap is not THAT expensive. I'm thinking you should pick up a donor engine somewhere, like an M50 with higher miles but in good cosmetic shape but with a blown headgasket or something. That way you can take all of the electronics from it. I'd estimate the donor engine costing around $300 (if blown) to $500 (maybe not blown), plus the cost of a DME, around $150. If you try to source each part individually you will end up paying way more.

If you are willing to perform the due diligence in sourcing parts and cross referencing which parts are the same between M50 and M52s, you should be able to pull this swap off. You must also have the financial resources to do the swap. You're looking at around $2500 to do a swap with a M52, and that's being optimistic.

hey thanks for information, very helpful.
Well, i actually have EVERYTHING already dropped in the car so im just faced with the OBDI or OBDII beef. and right now im in about $1000 spent on the swap (ive gotten extremely good deals)
i talked with that one dude that put the m52 OBDII and he gave me some good info also...like, parts that i absolutely need to make the whole OBDII thing happen.
The problem right now has been finding those parts, and i havent gotten prices from the stealership yet(im very scared lol).

So right now i pretty much want to know a close estimate of the amount of cash im going to be spending on the OBDII parts or a whole OBDI conversion. If the money difference is A LOT! then ill be going with the less expensive route, but if i see the prices are not THAT different im going OBDI.

Thanks for the info!!

[FredK]

There is one guy on r3v who put an M52 in his E30 with the OBD-II electronics. He does not have the secondary air pump installed, nor is it an absolute requisite to install it in order for the engine to fire or run properly. It's just an emissions device that likes to crap out on you. :) The OBD-II engines also have four O2 sensors, two of which are absolutely necessary for proper engine feedback, and two downstream units that you can run without (IIRC).

The OBD-I swap is not THAT expensive. I'm thinking you should pick up a donor engine somewhere, like an M50 with higher miles but in good cosmetic shape but with a blown headgasket or something. That way you can take all of the electronics from it. I'd estimate the donor engine costing around $300 (if blown) to $500 (maybe not blown), plus the cost of a DME, around $150. If you try to source each part individually you will end up paying way more.

If you are willing to perform the due diligence in sourcing parts and cross referencing which parts are the same between M50 and M52s, you should be able to pull this swap off. You must also have the financial resources to do the swap. You're looking at around $2500 to do a swap with a M52, and that's being optimistic.

[Jason89i]

....... cheaper route would probably be to keep it obdII, however, I have no idea what goes into making an e30 obdII compatible so dont quote me on that.

if your not sure or dont have relative experience, dont give advice.

check out the engine management systems. there is a lot of differences between obd1 and 2. ews key rings, dme's need programing - not just a chip, exhaust air pump, blah blah blah.

Well youre gonna save money by going m50 over m52. If you have your heart set on an m52 then the cheaper route would probably be to keep it obdII, however, I have no idea what goes into making an e30 obdII compatible so dont quote me on that.

[nes85er]

im doing the m52 swap, and im currently stuck in the OBDI or OBDII decision. What most bimmer dudes are doing nowadays is doing OBDI conversions for the increase power, and im currently leaning towards going that road. Then there is OBDII, i would like to do it just cuz the m52 was originally made with OBDII and not a lot of people have m52 obdII e30s.

but the MAIN reason i cant decide which system to go for is: how much money am i looking to spend between the two systems!!!???
im definitely going to go with whatever system is less expensive! thats for sure.

so if you guys have some input on the price range, it would be great to hear it!

thanks.