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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 08-27-2015, 04:27 PM
Ksa24 Ksa24 is offline
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Where to find internal performance parts to do a build?Cant find anything

I have a E46 328 2.8l automatic in wanting to fully build and 5 speed swap it pretty soon,but I'm having trouble finding aftermarket internal parts(Pistons,rods,cams ect.).Wanting to keep this motor to build and not swap it so any websites that you know of would be a huge help.
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  #2  
Old 08-27-2015, 04:47 PM
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Fast Bob Fast Bob is online now
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Quote:
Originally Posted by Ksa24 View Post
I have a E46 328 2.8l automatic in wanting to fully build and 5 speed swap it pretty soon,but I'm having trouble finding aftermarket internal parts(Pistons,rods,cams ect.).Wanting to keep this motor to build and not swap it so any websites that you know of would be a huge help.
The reason you can`t find any parts is because for all intents and purposes, there are none. These engines are among the most difficult (and expensive) to extract more power from. Realistically, the only logical way is to go with Forced Induction, and you need a substantial budget ($10,000 minimum) to do it right. No matter how you shake it out, it always works out to more than $100 per horsepower gained.

With these aluminum blocks, you`re limited to around 8 pounds of boost, which equates to maybe 80 to 100 RWHP, depending on whether you have a 2.5, 2.8, or 3-liter motor.

We have a saying around here, to wit:

"Learn to love what ya got, or buy a faster car...."

(Or be willing to commit blasphemy, and swap to a 2JZ, or LS motor, which will get you some serious horsepower for a lot less money)
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  #3  
Old 08-27-2015, 04:54 PM
Ksa24 Ksa24 is offline
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Yeah iv thought about a ls1 or e39 v8 but can't really decide on what to do,kind of wanted to stay with the original motor but now that I know there's no building them I won't keep the motor, I want to keep the body though.
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  #4  
Old 08-28-2015, 06:49 AM
marcozandrini marcozandrini is offline
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  #5  
Old 08-28-2015, 03:52 PM
Rob43 Rob43 is online now
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Originally Posted by Ksa24 View Post
Yeah iv thought about a ls1 or e39 v8 but can't really decide on what to do,kind of wanted to stay with the original motor but now that I know there's no building them I won't keep the motor, I want to keep the body though.
I have the N/A "Recipe" for what you want to do, if you follow my exact plan, your Dynojet Dyno WHP numbers will be in the 230 to 250 WHP range.


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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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  #6  
Old 08-28-2015, 04:07 PM
GoForthFast GoForthFast is offline
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Quote:
Originally Posted by Ksa24 View Post
Yeah iv thought about a ls1 or e39 v8 but can't really decide on what to do,kind of wanted to stay with the original motor but now that I know there's no building them I won't keep the motor, I want to keep the body though.
You could go for schrick cams and headers for a sweeter running engine, but there is some beauty to the way the stock motor runs. Because of the double vans the torque curve starts low and is very broad. I think if you can't appreciate that you've got the wrong car.
One of your transplants might give you rocket blast acceleration, but that is not what draws most of us here to get passionate about the e46.
http://www.turnermotorsport.com/BMW-...camshafts.aspx
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  #7  
Old 08-29-2015, 01:31 PM
Rob43 Rob43 is online now
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Quote:
Originally Posted by Ksa24 View Post
I have a E46 328 2.8l automatic in wanting to fully build and 5 speed swap it pretty soon,but I'm having trouble finding aftermarket internal parts(Pistons,rods,cams ect.).Wanting to keep this motor to build and not swap it so any websites that you know of would be a huge help.
Oh, & just so we're crystal clear, a M52TUB28 makes 190 Crank HP, this translates into about 160 on a DynoJet Dyno CF = SAE on a Good Day.

As long as your motor is in good internal shape & produces a good Compression Test there's no reason you can't make 230 to 250 WHP (Crank HP = ~277 to ~300) on a Dynojet Dyno. An added bonus is that you Don't Need new Pistons or Rods for this to work, so that part of your budget will get re-directed back into the cylinder head to make it flow better. It has been proven on these motors that about a 20%-Plus increase in cylinder head flow is completely possible, now add cams, intake & exhaust along with a few other goodies.

So again, "IF" you Really have the budget, I know how to build it. I'll "Ball Park" this at roughly ~$3,500 dollars based on the fact I know where & how to get things done.



Rob43
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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

Need Help With Your Nitrous Ambitions ?.....PM ME
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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  #8  
Old 08-31-2015, 05:45 PM
UWISHU1 UWISHU1 is offline
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