Capelo's Green Monster Turbo Build Thread

[Da Infammus 1]

This thread revival gave me a bit of motivation. Imma go spend some money with your cousin so we can make it interesting if you bring this thing down south. We'll see which Capelo can build faster E36's lol.

[SCapelo]

This thread revival gave me a bit of motivation. Imma go spend some money with your cousin so we can make it interesting if you bring this thing down south. We'll see which Capelo can build faster E36's lol.

Ya finally! Get to work brah. I built and finished a setup AND blew it up before you decided what turbo to use hahaha

[Da Infammus 1]

Ya finally! Get to work brah. I built and finished a setup AND blew it up before you decided what turbo to use hahaha

The problem wasn't deciding what turbo, the problem was being able to afford my goal lol.

[328iFun]

That is what makes it all worth it. Nothing like a 5k car beating up on 75k car. I find myself thinking of all of these cars as less superior to mine now when I see them driving around either way lol

Yeah,

I wish my car were still a 5k car... Now its a 11K car invested. Which I couldn't sell for 6.

I wonder what I could have gotten with a 15,000 down payment

, Perhaps


And I hate seeing turbo thread builds that break so quickly. But an 88MM is quite hefty

And what are you thinking you spiked too? Can you check peak boost level?

[SCapelo]

Yeah,

I wish my car were still a 5k car... Now its a 11K car invested. Which I couldn't sell for 6.

I wonder what I could have gotten with a 15,000 down payment

, Perhaps


And I hate seeing turbo thread builds that break so quickly. But an 88MM is quite hefty

And what are you thinking you spiked too? Can you check peak boost level?

No Ragrets lol

I was only in a rush to turn it up so I could seal the deal on a FBO E85 335i run that I had lined up. To be honest I couldve destroyed that car on wastegate 15psi. I was also gearing up to run an e85 porsche locally but the car broke a few weeks later since I just couldn't turn it back down lol.

The boost would come on hard and get to about 19/20 for a second maybe for 2-300rpm of range and taper down to about 17/18 depending on weather. Was getting pretty cold here at the time too. I disconnected the battery and never thought to check peak but I bet its a little higher since I was still dialing it in.

Good news but no progress yet. I found the color coding dots on my block indicating which main bearing sizes the engine originally had for each main. I ordered a generic OE set from worldpac but apparently the part number points to a white color code. Even though they're an OE part number they are still off and not true 60mm bearings. My block is showing 4 Green Bearing sets and 3 Yellow (One of which is thrust for #6). Now I have to figure out the most cost effective way to get a mismatch or just buy both sets.



You can see colored dots right below the main studs. It's pretty awesome they survived 21 yrs of use.

Rods should be easier at least

[328iFun]

Yeah sucks that happened to you. I have spare motor lying in my garage now just as a precaution not because I don't think they can handle it but because I'm new to this...

I had the same problem when it was getting cold here in Virginia. I think it was maybe 20 degrees or so (its 1 degree now) and I typically had the car set on 10 PSI but under WOT would hit 12.5 or so. With the weather drop, and the car set on same level was hitting 16-16.5 easily. Which is a bit concerning on base tune, ha.

But anyway, I like the build and seems that your gonna be pretty happy once your all said and done.

All in all though I think a lot of us here feel that we have made or some cases built our "dream within means" car. Which is awesome.

[SCapelo]

Yeah sucks that happened to you. I have spare motor lying in my garage now just as a precaution not because I don't think they can handle it but because I'm new to this...

I had the same problem when it was getting cold here in Virginia. I think it was maybe 20 degrees or so (its 1 degree now) and I typically had the car set on 10 PSI but under WOT would hit 12.5 or so. With the weather drop, and the car set on same level was hitting 16-16.5 easily. Which is a bit concerning on base tune, ha.

But anyway, I like the build and seems that your gonna be pretty happy once your all said and done.

All in all though I think a lot of us here feel that we have made or some cases built our "dream within means" car. Which is awesome.

WOW a 6.5psi increase would be big time damage for my car lol I'm glad it wasn't that bad!

I have a spare running s52 also but I'd like to save it for an e30 some day

This was a long time goal of mine and it was worth every bit of effort. Just gotta make sure this ho starts up after all this in-depth bottom end work that I have no business doing lol

[328iFun]

Yeah, I think if I was running an 88MM terb accelerating 40+ in third gear with a 6.5 PSI creep I'd have many problems

[Butters Stoch]

Yeah, I think if I was running an 88MM terb accelerating 40+ in third gear with a 6.5 PSI creep I'd have many problems

Your not reading that correctly. A GT4088r in precision terms is like a 6370.
Well technically a 63..5-70


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[328iFun]

Your not reading that correctly. A GT4088r in precision terms is like a 6370.
Well technically a 63..5-70


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Yeah, I have no idea how to figure that stuff out. How do you know that?

[pbonsalb]

It’s compressor impeller inducer (small end that sees the air first) in millimeters and turbine impeller inducer (big end that sees the air first on its way out) in millimeters. That is Precision Turbo nomenclature — the other turbo makers don’t always refer to their turbos this way even though it makes the most sense.

[milKt]

block mains color dots.jpg

Are these the dots?

These dots represent the measurements based on the block in relation to the original crankshaft, correct?
If one were using a different crank, these colors would have little or no "bearing" on the situation?

[SCapelo]

block mains color dots.jpg

Are these the dots?

These dots represent the measurements based on the block in relation to the original crankshaft, correct?
If one were using a different crank, these colors would have little or no "bearing" on the situation?

Yes I believe so. In this case I am using original s52 block and crank with no line-honing. Just a bearing replacement and plasti-gauge for the check. The ARP main stud paperwork says to be weary of main cap distortion due to the higher clamping but I'm hoping it won't be an issue.

I don't go by precision terms on this turba cause it's way cooler to tell people Gee Tee Fourtyyyyyyy :0

[SCapelo]

Got some more work done with the correct yellow main bearings. My crank shaft had yellow markings and the BMW TIS indicated to go by those specifically.

Plastigauged all of the mains and all were within .035 to .040 - all within spec. Got the ARP main studs on there torqued to spec and all is well. Crank spins nicely now.

Just got my ring filer today and plan to get the piston rings gapped and the entire rotating assembly together this weekend. Not much holding me back from getting it all done besides time at this point. Also figured now's a good time to clean and paint all the engine parts. And a pic of my car from this past summer really hit me in the feels

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[rajicase]

Progress. Gonna make all the power soon.

[SCapelo]

Progress. Gonna make all the power soon.

Thanks for the pointers. Been bothering Zack for a few weeks about this. Now after getting this far the whole build doesn't seem all that difficult to do. I mean I hope this biatch doesn't blow up 3 miles in but at least I'd be a little quicker on the progress next go around lol

[NY98M3]

Recheck that those mains, should be measured in inches. or at least convert it to inches.

[SCapelo]

Recheck that those mains, should be measured in inches. or at least convert it to inches.

I went by this here? Says mm



Also help from this thread https://www.r3vlimited.com/board/sho...=305587&page=2

[NY98M3]

I went by this here? Says mm



Also help from this thread https://www.r3vlimited.com/board/sho...=305587&page=2

just usually see it in inches...good job on the mains, carry on

[SCapelo]

just usually see it in inches...good job on the mains, carry on

I'll have to go by inches for ring gap. What is a good number for 87mm? I'm not opposed to going a little wider for a little more safety

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[rajicase]

JE suggested I think 0.017 and 0.018 for ring gaps for me. I went with 0.019 and 0.022 for safety. Doesn't hurt to have a little more ring gap IMO.

[SCapelo]

JE suggested I think 0.017 and 0.018 for ring gaps for me. I went with 0.019 and 0.022 for safety. Doesn't hurt to have a little more ring gap IMO.

Did you go by the paperwork they give you? Or call them for your setup?

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[rajicase]

Did you go by the paperwork they give you? Or call them for your setup?

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I went with the sheet they supplied; Moderate turbo/nitrous.
It gave me 0.017 and 0.018 , and choose to go with 0.019 and 0.022 for safety. Happy with the results. Was my first ever engine build, and its held up great so far.

- - - Updated - - -

Looks like its saying 0.017 and 0.019 for you. I would gap them a bit wider, if I were you.

[SCapelo]

I went with the sheet they supplied; Moderate turbo/nitrous.
It gave me 0.017 and 0.018 , and choose to go with 0.019 and 0.022 for safety. Happy with the results. Was my first ever engine build, and its held up great so far.

- - - Updated - - -

Looks like its saying 0.017 and 0.019 for you. I would gap them a bit wider, if I were you.

I think I'll do the same

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[JPE36M3]

Thanks for the pointers. Been bothering Zack for a few weeks about this. Now after getting this far the whole build doesn't seem all that difficult to do. I mean I hope this biatch doesn't blow up 3 miles in but at least I'd be a little quicker on the progress next go around lol

awesome progress, boost away worry free... did you use a stock replacement main bearings and caps instead of the ARP brand bearing stuff? this is nice, so instead of bothering them AND butters, does this mean I get to bother you when I slap this m52 block together this summer with an s52 crank? LOL. im not planning on really sending my stock s52 that hard right away anyways.