1.3 Motronic Up-Grade & 2.7i How To

[smoke4ndmears]

yeah kenika i've been yanking most of this stuff from Abe's and a few bits and pieces from ABC. I'm hoping ABC gives me the LSD for dirt cheap!!! By August I should be done for sure.
I'll grab that O2 sensor when I go back to the yard and it seems I forgot the Crank Pully as well.
Question: on different thread i read that there is another connector below the fusebox that i might need. C104?
And on the 89 325i there was a sensor in the drivers side brake duct intake. Is this some sort of ambient air temp sensor?

thanks!

[kenika65]

this may seem a bit redundant, but which gaskets do you use-- the I or eta when putting all the I components on an eta long block. ( intake, exhaust. ect).
where have you found the best prices for quality parts.

thanks
Owen

http://www.bavauto.com/ Is a good on-line source. But local auto parts house should have your gaskets.

http://www.e30tech.com/forum/showthread.php?t=39960 This post has the gaskets I used.

You will want i intake gaskets for your i intake, exhaust gaskets are the same, i tb gasket for i tb, when you are putting it together you will know what gasket you need.

[owenjm]

eta to I

this may seem a bit redundant, but which gaskets do you use-- the I or eta when putting all the I components on an eta long block. ( intake, exhaust. ect).
where have you found the best prices for quality parts.

thanks
Owen

[kenika65]

Your in Hawaii doing this! sweet if so and I will have to come see your e30 in August when I see my Nana for her 84th.

Oh ya I noticed you didn't have the O2 sensor from the 87, you will need to because the connection is different then your 84.

[smoke4ndmears]

i pulled the front and rear bumpers + front valence with foglights and ducting along with all of the ignition stuff.

$100

[EtaSport]

if you got all that for 200 bucks and it works, thats a good deal. i got my swap parts for 250 including the manifold.. i think i bought the computer separate though.

[smoke4ndmears]

i guess i have it then lol

[nando]

that's not the TPS, that's the cruise control servo. the TPS is under the throttle.

[smoke4ndmears]

junkyard jools

ok, so here's what i picked up at the yard today. $200:

intake with fuel rail/throttle and regulator etc



der harness. only had to clip the oil level sensor line as it was routed inbetween a mount. cut the c101 right at the fuse box and left it on



AFM/airbox assembly (also got the duct and the piece it mounts too)



ein thermo housing:



the ICV, i think???. i tore up the rubber ducting that it mounts to and that goes between the AFM and intake. will just snatch another.



i figured this was the TPS. amirite??? had to chop it as well



and finally das komputer.



still have to go back and get the cam, springs and cover. am i missing anything besides???

[owenjm]

eta to I

Thanks guys

Owen

[kenika65]

After reading through the thread I think it will help me.

What I have is an 87 325Is I bought for the sport interior. after looking the car over it seems like to nice of car to part, I should mention It has a bad engine. I have a 86 528e engine that has been In my way for a year. It is a very good runner, If I transfer all the parts listed from the I to the e engine it will work in the car just less performance. Is this correct.

Owen

If you put the 86 bottom end block and all in the 87 you will have a low compression 2.7i which is good for turbo and is best on engine management or custom chip. Dyno Proof.(http://www.r3vlimited.com/board/showthread.php?t=97872

If the 2.5i head is damaged and you plan to use the 86e head then you will have more torque then the i but the acceleration will be slightly slower because the 2.5 revs faster then the 2.7.

[owenjm]

eta to I

After reading through the thread I think it will help me.

What I have is an 87 325Is I bought for the sport interior. after looking the car over it seems like to nice of car to part, I should mention It has a bad engine. I have a 86 528e engine that has been In my way for a year. It is a very good runner, If I transfer all the parts listed from the I to the e engine it will work in the car just less performance. Is this correct.

Owen

[smoke4ndmears]

already on it etasport; looking at the pinout of the diagnostic face right now - i assume the fuse box to harness connector is pretty much the same? if not i think i can piece it together from all of these drawings. after looking over the donor car i had a few (more) questions :)

once i seperate c101 from the fuse box connector it has to get pulled through the firewall doesnt it? looks to be a PITA.

i went ahead and grabbed an IS guage cluster from the 87. i can just sub this in for the one in my 84 when all is said and done no?

thats about it. i'm pretty sure i can take this on. first though ill be fitting some plastic bumpers (and getting them painted hennarot) that i spied at another junkyard ($200 for the pair lol) and swapping out this dash i just got. I appreciate your extra assitance and ill keep you posted when i start. Seems pretty straight forward though.

thanks again!

[EtaSport]

well most of the wires are color coded. you only really need to hook up the yellow/black start input wire, the green ignition wire and the black/green unloader to get it to start. what you need is the bmw etm wiring diagrams to find out which pins are which. you should be able to find them in the forums though.. search c101

[smoke4ndmears]

etasport i was actually going to pm you. i spent an hour reading through the other related posts on this topic so i feel i have a good understanding of the overal process now. my question to you is this: other than the 3 wires that get spliced for c104 are the two different c101s a 1:1 copy? I dont have access to a high speed connection at work so i can't review the wiring diagrams. i'm no stranger to rigging wiring up (i'm an electronics tech in the navy) but i need to have a warm fuzzy that i wont run into any show stopping surprises as far as electrical goes.