Need advice about Turbo Miata
#1
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Hey guys, so I need any sort of advice. I have been researching but I need opinions and more experienced people.
I currently drive a 1990 BMW 525i with 214k. its very very clean but the clutch is going and i dont have the drive to fix it.
My buddy has a 1994 miata running a 16g, megasquirt, 550ccs, straightpipe, some sort of wideband, vented BOV. has 119k and new turbo and intercooler setup. We talked about trading since he never drives it.
I checked it out the other day and its pretty rough. Needs a windsheild, paint, top, seats, and basic tlc. This dosnt bother me that much. However, it did fire right up after sitting, it still idles rough and wants to die. It drives alright, when transistioning into boost sort of stutters, but it pulls hard for what it is. its running 8psi.
It also will sometimes blow smoke when on WOT. White smoke. HE thinks its due to not having an oil restrictor on the feed line into the turbo. He just checked compression and it was great.
So do you guys think it just needs a tune? could i do it myself via megasquirt? I need thoughts, opinions, advice. It will be a daily driver and only car. Would it be solid with a tune?
Thanks in advance.
I currently drive a 1990 BMW 525i with 214k. its very very clean but the clutch is going and i dont have the drive to fix it.
My buddy has a 1994 miata running a 16g, megasquirt, 550ccs, straightpipe, some sort of wideband, vented BOV. has 119k and new turbo and intercooler setup. We talked about trading since he never drives it.
I checked it out the other day and its pretty rough. Needs a windsheild, paint, top, seats, and basic tlc. This dosnt bother me that much. However, it did fire right up after sitting, it still idles rough and wants to die. It drives alright, when transistioning into boost sort of stutters, but it pulls hard for what it is. its running 8psi.
It also will sometimes blow smoke when on WOT. White smoke. HE thinks its due to not having an oil restrictor on the feed line into the turbo. He just checked compression and it was great.
So do you guys think it just needs a tune? could i do it myself via megasquirt? I need thoughts, opinions, advice. It will be a daily driver and only car. Would it be solid with a tune?
Thanks in advance.
#5
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If you don't want to do a clutch on the BMW, I doubt you have the drive to do the massive amount of work it sounds like it will take to get this car running right.
There are a lot of unknowns as far as I can tell.
Any pictures of said engine bay?
There are a lot of unknowns as far as I can tell.
Any pictures of said engine bay?
#6
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+1, pics of said miata so we can help you. A "properly" setup turbo miata will be quite reliable. Just because it has a megasquirt, injectors, fmic, etc. does not make it reliable. You can't just throw parts at a car until it works, there has to be a method to the madness.
#7
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Thanks for the input everyone. i will post the link to the ad.
And as far as not wanting to do the clutch is just because i know if i want the e34 to be right ill have to throw in suspension setup, a chip, a rebuild probably among others. I dont mind dailying a really rough car and i enjoy doing small work to clean a car up along with paint and such. ill also post a link of my ad just for conparison.
And as far as not wanting to do the clutch is just because i know if i want the e34 to be right ill have to throw in suspension setup, a chip, a rebuild probably among others. I dont mind dailying a really rough car and i enjoy doing small work to clean a car up along with paint and such. ill also post a link of my ad just for conparison.
#10
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Thanks for the input everyone. i will post the link to the ad.
And as far as not wanting to do the clutch is just because i know if i want the e34 to be right ill have to throw in suspension setup, a chip, a rebuild probably among others. I dont mind dailying a really rough car and i enjoy doing small work to clean a car up along with paint and such. ill also post a link of my ad just for conparison.
And as far as not wanting to do the clutch is just because i know if i want the e34 to be right ill have to throw in suspension setup, a chip, a rebuild probably among others. I dont mind dailying a really rough car and i enjoy doing small work to clean a car up along with paint and such. ill also post a link of my ad just for conparison.
*Edit, no mention of needing a clutch in the craigslist ad, classy.
#15
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Hmm, Ill ask him what manifold or who did it. If he did it then the welds will be good. What else do you guys see that can cause for possible problems? Is it possible for it to smoke due to not having an oil restrictor in the feed line? Also it common to have a rattling vibratey noise due to the downpipe being to big? Is clearance a common problem?
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Hmm, Ill ask him what manifold or who did it. If he did it then the welds will be good. What else do you guys see that can cause for possible problems? Is it possible for it to smoke due to not having an oil restrictor in the feed line? Also it common to have a rattling vibratey noise due to the downpipe being to big? Is clearance a common problem?
There's plenty of clearance for a 3" downpipe.
#20
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Do a leakdown test and be done with it. If leakdown checks out, it probably just needs a restrictor or a new turbo. The downpipe vibration can probably be fixed by any competent fabricator. Sounds like a shittly designed ebay setup to me if it's rattling. My BEGI downpipe fit great.