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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 03-21-2006, 09:47 AM
PimpinTheE36 PimpinTheE36 is offline
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M3 pistons?

Hello, does anyone know how big of a bore a 318 block can handle? and wat pistons would be best? Thanks....
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  #2  
Old 03-21-2006, 11:50 AM
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Alvizzo913 Alvizzo913 is offline
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I'm pretty sure M3 Pistons won't work on a 318....might be better off doing an engine swap
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  #3  
Old 03-21-2006, 12:06 PM
PimpinTheE36 PimpinTheE36 is offline
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Thanks bro, even if i bore it out? im goin turbo but i wanna prep the motor first...
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  #4  
Old 03-21-2006, 04:22 PM
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Alvizzo913 Alvizzo913 is offline
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Not to be an ass or anything or stomp on your idea, because that would be badass to turbo it, but....it might be better to upgrade to a 6 Cylinder engine with that money because there's a lot more available as far as superchargers and turbos go for the M50, M52 and S52 engines i think as opposed to the M42 engines....just a thought
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  #5  
Old 03-21-2006, 06:58 PM
PimpinTheE36 PimpinTheE36 is offline
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I was leaning towards a 6cylinder, but i wanted to make a 318 fast, oh well my buddys and i are going do some crazy stuff, if it blows up then ill get a 6 cyl....first im gonna throw a leaf blower on the intake hahah hopefully it will give me a couple good goes before she blows up....might as well because 318s arent worth 500 bucks these days...very excited
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  #6  
Old 03-21-2006, 08:37 PM
wannabeemer wannabeemer is offline
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Quote:
Originally Posted by PimpinTheE36
I was leaning towards a 6cylinder, but i wanted to make a 318 fast, oh well my buddys and i are going do some crazy stuff, if it blows up then ill get a 6 cyl....first im gonna throw a leaf blower on the intake hahah hopefully it will give me a couple good goes before she blows up....might as well because 318s arent worth 500 bucks these days...very excited
that sounds like torture, yea m3 pistons wont work, go for the six cylinder m50 or s52, but are you serious about the leaf blower??? lol.
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  #7  
Old 03-21-2006, 10:07 PM
alphine325IS alphine325IS is offline
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Quote:
Originally Posted by PimpinTheE36
I was leaning towards a 6cylinder, but i wanted to make a 318 fast, oh well my buddys and i are going do some crazy stuff, if it blows up then ill get a 6 cyl....first im gonna throw a leaf blower on the intake hahah hopefully it will give me a couple good goes before she blows up....might as well because 318s arent worth 500 bucks these days...very excited
I wish I had money to nuke engines for the fun of it.
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  #8  
Old 03-22-2006, 06:44 AM
PimpinTheE36 PimpinTheE36 is offline
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Yah man, well ive been savin up some money so i was gonna get rid of the 318 motor anyways, and then i thought maybe i could make that fast so i wouldnt have to spend so much....but yah i went to lowes the other day and bought the biggest electric powered leaf blower and now i need to order a power inverter big enough to turn it on....like from what i understand the t25 turbo has 225 cfm like volume air flow (correct me if im wrong) and this leaf blower has 375 and blows at speeds of 215mph...hahah i shoud go all the way and put sponsored by BLACK AND DECKER all over my car That would be pretty embarrasing though to get burnt by a leaf blower...........(my kind of forced induction)
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  #9  
Old 03-22-2006, 11:48 AM
thilton59 thilton59 is offline
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I'm a bit curious as to how you are modulate air flow. If you just strap a a leafblower on there something will blow. You need a wastegate, or at the bare least some solenoid activated valve to release excess pressure. And you're going to retune this right? If you don't, then you're just gonna have a bunch of ait and no fuel. And for that much air... You'll be blowing off hoses in no time. (and let us know how you wind up making that "blower" actually get power, you may very well need an alternator bigger than your engine...)
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  #10  
Old 03-22-2006, 02:17 PM
PimpinTheE36 PimpinTheE36 is offline
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Not at all bro, we know what were doing ( for the most part ) first im gonna have a big azz button under the gas pedel that will turn the leaf blower on only when its floored, so when i go to shift the leaf blower isnt still forcing air in....ofcourse im gonna need more fuel to match the air, im gonna cut the speed on the leaf blower down and see wat she does, if i dont get a good response then i will upgrade the fuel injectors, i already installed bosch plat4s sparkplugs yesterday...the whole alternator thing im not sure how that is going to turn out, but the power inverter is going straight to the battery and will be disconnected when the car is not on so it wont draw power.... sounds like fun ay? hahah
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  #11  
Old 03-22-2006, 06:07 PM
tuffruxury tuffruxury is offline
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you can get s50 pistons into an m42, dont let everyone get you down on the 4cyl. go to www.bimmerforums.com and go to the e36 section and search for s42. theres a thread thats a million pages long. long story short, this guy built his 4 banger n/a and so far, with just the bottom end done, he dyno's higher than a lot of 328s, plus his car is lighter, you do the math with a built top end.
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  #12  
Old 03-23-2006, 04:45 AM
PimpinTheE36 PimpinTheE36 is offline
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Yah im going to deffinately have to check that out, i know these guys over here arent a big fan of the 318 lol, i have seen a couple 318s online with well over 300 hp i was going to try and get 4 or even 5 out of her, but oh well i have plenty of hp in my twin turbo stealth....
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  #13  
Old 04-12-2006, 01:28 PM
CJH CJH is offline
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Your leaf blower will likely be a disappointment. The issue in forced induction is static pressure delivery. The values stated are free air delivery, when pushing against system pressure (into the engine) the blower will fall flat on its face. Centrifugal compressors (superchargers) are carefully engineered to develop sufficient boost pressure at a given flow value. Note that a typical turbocharger is capable of speeds in excess of 100,000 RPM. The blower will not be able to push sufficient air at the required pressure to have much of an effect.
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  #14  
Old 04-17-2006, 04:05 AM
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frost_dxb frost_dxb is offline
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Quote:
Originally Posted by tuffruxury
you can get s50 pistons into an m42, dont let everyone get you down on the 4cyl. go to www.bimmerforums.com and go to the e36 section and search for s42. theres a thread thats a million pages long. long story short, this guy built his 4 banger n/a and so far, with just the bottom end done, he dyno's higher than a lot of 328s, plus his car is lighter, you do the math with a built top end.
Yes, M3 pistons fits fine after boring from (M42) 84mm to (S52) 86.6mm. I'm doing this project too PM me if you need to know more.
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  #15  
Old 04-17-2006, 06:03 AM
dzrocks_11 dzrocks_11 is offline
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i hope the leaf blower or engine blows up and peices of it come and hit you in the face....im sorry but the leaf blower idea is just assinine, save yoursefl the time and money and the engine and just skip that
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  #16  
Old 06-22-2007, 11:36 PM
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frost_dxb frost_dxb is offline
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Originally Posted by dzrocks_11 View Post
i hope the leaf blower or engine blows up and peices of it come and hit you in the face....im sorry but the leaf blower idea is just assinine, save yoursefl the time and money and the engine and just skip that
yes it has been done and sad to say a 318is w/o S50 pistons smoke a 325i
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1992 325i AC Schnitzer - SOLD in DXB
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1989 E300 - SOLD in DXB
1989 M6 - SOLD in DXB
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