My e30 318is s52 swap thread

[matt]

What is your check engine light doing? Do you have any codes?

[windsor318is]

thats what i dont understand, i wouldnt have a perfect idle, and it does run okay when i drive it down the street, just that it has prolly 160hp.

[BigD]

It really sounds like the manifold itself is broken but that would cause a huge vacuum leak and it wouldn't just cause you to run lean but it shouldn't run at all... and I dunno what your brake pedal feels like but obviously with a vacuum leak this big your brakes would work as they would with the engine off (no vacuum assist).

[Charlie]

i no, i almost had a heart attack, i checke my e36 and it doesnt do that, ill have to take it off and see what the issue is. its not the TB its the entire side of the manifold, the flat side where the TB mounts i can actually see it expanding. maybe ill get a vid.

Matt, ill get you a pic, you want me to take the injector cover off? so your saying my manifold is not sealed properly to the block? i do recall that i had an issue getting the last nut on, to the back of the motor, you think that would give a bad enough seal? ill get you some pics today to look at before i pull the manifold off. you think its also related to my brake pedal feel?

Dude, get a video of that, seriously. I don't even know how it would be "expanding".

-Charlie

[matt]

It sounds like you have some sort of big problem with your intake manifold... I'm not sure exactly what.

[windsor318is]

wwwwwwwwwwhat??? Where is it expanding??? By the throttle body? You sure it's not just a loose TB or cracked manifold flexing that you're seeing?

i no, i almost had a heart attack, i checke my e36 and it doesnt do that, ill have to take it off and see what the issue is. its not the TB its the entire side of the manifold, the flat side where the TB mounts i can actually see it expanding. maybe ill get a vid.

Matt, ill get you a pic, you want me to take the injector cover off? so your saying my manifold is not sealed properly to the block? i do recall that i had an issue getting the last nut on, to the back of the motor, you think that would give a bad enough seal? ill get you some pics today to look at before i pull the manifold off. you think its also related to my brake pedal feel?

[matt]

wwwwwwwwwwhat??? Where is it expanding??? By the throttle body? You sure it's not just a loose TB or cracked manifold flexing that you're seeing?

+1

Sounds like you have a very bad vacuum leak after the throttle body.... maybe a whole bad intake manifold. We run the stock M50 manifold up to 30psi and never see it change shape...

Can you post some close up pics of your injectors, throttle body, MAF, and intake manifold?

[BigD]

also i noticed that when i pull the throttle i can actually see the intake manifold expanding...

wwwwwwwwwwhat??? Where is it expanding??? By the throttle body? You sure it's not just a loose TB or cracked manifold flexing that you're seeing?

[e30polak]

I love your car, one of the only e30s I've seen pull off the twisty skirts. ;)

IMO gas door looks a lil out of place, but hey it's your car.

[e30s52]

wow very clean. i got the same straut tower brace to.

[windsor318is]

okay i installed my racers market chip today, its still running lean but not as lean as before, still has no balls i must have a problem somewhere. i did notice that my brake pedal feel is quit hard, like the booster is getting to much air or something. also i noticed that when i pull the throttle i can actually see the intake manifold expanding.....that makes no sense at all, i must have some vacuum line hooked up wrong. any suggestions guys?? heres some updated pics from today though..

its been in the garage for 6 months so it is dirty.

[Miasma]

Just read this thread, Great build. Lot's of info from everyone.

[bmw325csi]

wow sick build bro. Very nice car.


P.S. I love your avatar!!

[e30s52]

o you know you want to drive it with the supercharger

[windsor318is]

or you could just put the supercharger on with the chip. that solves your problem and then some

ha ha your the second one to mention that...NO! i wanna dyno in between, and get use to double the power of the might m42 piece of shit.

E30SERG: thanks for the complements, ive been trying to be through with this thread for that purpose, plus i might do this swap again, never no. if theres anything ive missed or want pics of lemme no.