is swapping s52 in hard if I have m50?

[Pl3wA]

Like the title says, i have an m50 now, will it be really that difficult to put in an s52? Can i keep the same wiring harness if im going to keep the OBD1 intake? do i need a new ecu? what else would I need?

I'm a noob and would like to get some confidence built up before I get started this week :)

K THX

[reelizmpro]

direct swap, just reuse your OBD1 stuff like intake, 525 oil pan, etc on the S52.

[devon.818]

Go obdII

You will be glad you did. Better computer and you can order the wiring harness or a good price

[dude8383]

Easy as pie. I just did this recently on my car. Had an M50 and purchased an S52.

You can keep your harness, pan, obd1 intake, obd1 throttle body and maybe a few other small items.

I'd make sure to get a chip tuned for the S52 though. Also, you have a choice of either keeping the OBDII valve cover or swapping to OBDI. I kept the OBDII valve cover because the coils weren't as old and I like the all black look.

[Pl3wA]

SWEEET. you dont know how happy it makes me. i thought i had an m52 and knew it would be an easy swap, then i found out i had an m50 and got a little scared.

Also, yeah, I'm definately getting it tuned. along with pulleys, headers, intake and the obd1 intake, i think i'll be making some nice numbers

300hp seem far fetched?

[SacE30]

Do the s52

[328ijunkie]

Like i said in the other thread you can easily run the S52 OBD1 but i wouldnt....

[Wanganstyle]

SWEEET. you dont know how happy it makes me. i thought i had an m52 and knew it would be an easy swap, then i found out i had an m50 and got a little scared.

Also, yeah, I'm definately getting it tuned. along with pulleys, headers, intake and the obd1 intake, i think i'll be making some nice numbers

300hp seem far fetched?

300hp is dreaming on a stock head+cams+bottom end s52b32 us. unless your s52 is actually a s50b32 or S54b32.

CAMS (Evosport/Sunbelt) + all high dollar (non-ebay longtube headers+manifold+intake side) + OBD2 custom dyno mapping s52 MAY get you 265-275hp. Would possibly have to limit the vanos travel pending cam choice.

if your target is 300hp in a single throttle M50 family engine then you need a Alpina 3.4L kit for the s52. Those are 300hp legitimately, a s52b34 from alpina delivered in the B3S late run cars.

[dude8383]

Like i said in the other thread you can easily run the S52 OBD1 but i wouldnt....

honestly, i would have considered it obdII and i had EVERYTHING that i needed to do it. problem is that i was in a rush to get the car ready for a track event and all of the obdI stuff was already there. i didn't want to spend any time learning how to get it wired up right.

maybe in the future i'll consider it.

[MR 325]

Don't listen to these guys, there is NOTHING wrong with running an S52 with OBD1 swap.

[Jafxod]

300hp seem far fetched?

Yes. For the price to get there you are better off keeping your m50 and turboing it.

[328ijunkie]

Don't listen to these guys, there is NOTHING wrong with running an S52 with OBD1 swap.

Yes and no.
Does it work? Yes.
Is it similar to running your M50 off a Motronic 1.3 setup? Yes.

[Wanganstyle]

Don't listen to these guys, there is NOTHING wrong with running an S52 with OBD1 swap.

Everything is wrong with a S52 + obd1. Throwing away something newer and smarter to run something older and dumber at a higher cost.


totally illegal for emissions, downgrading brainpower and entire diagnostic system is not an upgrade.
.
costs more as S52's do not come with any OBD1 sensors. OBD1 sensors are not free, nor is a real s52 map for Obd1 brain.


Individuals trend towards being afraid of wiring and handling the less complex obd1 system themselves, obd2 installations are for shops and diy-ers with good logic and spreadsheet and wiring diagram reading skills.

There is no shame in admitting:

"I can't wire things worth crap" or "I'll burn my own car down to the ground melting wires"

People selling copy chips defend obd1 like champs/chimps. similar to the boot leg movie/rap music "market" in random ghettos.

in a pinch I could probably get a s52 to run with m20 1.3 moronic.... Perhaps I should to avoid wiring entirely and run even more primeval brains??

[bubbajan21]

in a pinch I could probably get a s52 to run with m20 1.3 moronic.... Perhaps I should to avoid wiring entirely and run even more primeval brains??

Abacus engine management?

[Pl3wA]

from wangan's post down it was mostly gibberish. lol. jk. why is getting power sooo hard?!?!

Ok, so its easy to do the swap then? thats good. cool cool cool

I was also looking for turbo's but they're mad expense. $$$
What does everyone think about ebay turbos for 1k? lol

Thanks everyone