Hey I'm new and 'm hoping yall could teach me a thing or two

[inconspicuous]

Hey I am new here and an amature in the FI world. Hell Just call me a beginner. I joined this forum to learn everything I can about turbocharging. I've bought a couple books before but it just kinda tells me about engine management and kinda just advertises and tells me the basics of tuning and everything.

I'm trying to think outside of the box in the bmw community and not just go with a supercharger kit outta the box.

I am currently in the pre-writeup plan of turbocharging a 2001 325iT

I did the equations on Garrett's website and it showed that the GT28RS has the best compression map for the power gains I want. Also I will probably get the AEM F/IC piggyback to control everything.

I'm just looking to stop at 350bhp. Once I find more technical data I will post it on here. It's a pain in the ass to try and find VE, AFR, timing, cam degrees, and some other information I might need to successfully calculate any tuning or equipment I need.

I was reading some threads on here I currently am just covering my bases and reading just a bunch of 101 stuff for now, and I was wondering if anyone knew of any useful links, books, videos, tutorials or anything so i can kinda master this art. I like to know what the hell is going on before i just jump in a do something.

On superchargers, I think most of the m54 engines could support a max of like 10 pounds of boost. but then again it's all different for different types of compressors right?

[inconspicuous]

Table of Contents E85 M54 Engine
^page 3 has some pretty useful numbers. This is for the I think z4 but it did have the engine that was also in the 3 series. The m54b25 is what you wanna look at if you do.

Cuves 3 and 4 are what you wanna look at for my engine


(just the PDF for VE for a 2.5 litre i got off here) just for easy access to the info.
Liters 2.50
CC's 2500
CID 152.6
Efficiency 80%
Pressure Ratio 1.00 1.34 1.68 2.02 2.36 2.70 3.04
Boost (psi) 0 5 10 15 20 25 30
3000 7.3 9.8 12.3 14.8 17.3 19.8 22.3
3500 8.5 11.4 14.4 17.3 20.2 23.1 26.0
4000 9.8 13.1 16.4 19.7 23.0 26.4 29.7
4500 11.0 14.7 18.5 22.2 25.9 29.7 33.4
5000 12.2 16.4 20.5 24.7 28.8 33.0 37.1
5500 13.4 18.0 22.6 27.1 31.7 36.2 40.8
6000 14.6 19.6 24.6 29.6 34.6 39.5 44.5
6500 15.9 21.3 26.7 32.0 37.4 42.8 48.2
7000 17.1 22.9 28.7 34.5 40.3 46.1 51.9
For Custom Airflow Maps go to http://www.turbo-owners.com
Airflow ratings in Lbs/min
Turbo-Owners.com Air Flow Maps

BTW yall, I'd like to say thank you so much in advance. This forum is a great find for me. If you want to check my credentials, I'm on e46fanatics.com also as photogenic.

[wroark]

For great reference material I would suggest Maximum Boost by Corky Bell.
Good overviews and some good guidelines for system sizing.

[Voodoo]

Originally Posted by inconspicuous

Table of Contents E85 M54 Engine
^page 3 has some pretty useful numbers. This is for the I think z4 but it did have the engine that was also in the 3 series. The m54b25 is what you wanna look at if you do.

Are you planning on running E85 as well?

[inconspicuous]

Originally Posted by Voodoo

Are you planning on running E85 as well?

as in the engine or the fuel? Ethanol no, and e85 is just the catagory label for the Z4, kinda like 1999-2005 is e46 for 3 seres e39 for 5 series, etc.

Originally Posted by wroark

For great reference material I would suggest Maximum Boost by Corky Bell.
Good overviews and some good guidelines for system sizing.

hey thanks man. I saw this book at barns and nobles. I'll go back and check it out some more. You got anymore books? I was just noticing it was published in 1997, and i was wondering if you knew of anymore recent information on the same subject. But thanks again man!

[wroark]

I haven't found anything newer and better than Corky's book yet, there's so much to digest in his book on just the principles .... his book will give you the basics you need to evaluate most componets of a turbo system. I'm in the middle of three projects (94 turbo Miata , 91 TT Z32, and an 80 911) that keep me researching on such a varied list of subjects that the internet usually ends up being my primary source for info. corky,s book was recommended to me so many times I finally had to buy it.

[inconspicuous]

Originally Posted by wroark

I haven't found anything newer and better than Corky's book yet, there's so much to digest in his book on just the principles .... his book will give you the basics you need to evaluate most componets of a turbo system. I'm in the middle of three projects (94 turbo Miata , 91 TT Z32, and an 80 911) that keep me researching on such a varied list of subjects that the internet usually ends up being my primary source for info. corky,s book was recommended to me so many times I finally had to buy it.

alright man I will take your word for it definetly. Also i guess the best way of learning is actually being in there while they tune and just sitting back and watching. though I am kinda weary of asking considering sometimes its a kept secret and it takes a while. but alright man. I just gotta keep saving money and my first buy will probably be the AEM F/IC

[wroark]

I'm using an AEM EMS (standalone) on my Miata and a Greddy eManage Ultimate on my Z32. So far the AEM is a lot easier for me to use.
Given the amount of tunability I was doing a standalone seemed better for the Miata (non-turbo to turbo, MAF to MAP, wasted spark dual coil to sequential COP and a whole lotta pressure...). The Z32 is going to be less drastic so a piggy back seemed adequate.
I think you will be happy with the AEM, if for no other reason than the fact that they have awesome tech support and great product support. Greddy, on the other hand, doesn't seem to have any support whatsoever but the piggy back scheme is generally pretty simple.

[Voodoo]

Originally Posted by inconspicuous

as in the engine or the fuel? Ethanol no, and e85 is just the catagory label for the Z4, kinda like 1999-2005 is e46 for 3 seres e39 for 5 series, etc.

Oh.

[inconspicuous]

Originally Posted by wroark

I'm using an AEM EMS (standalone) on my Miata and a Greddy eManage Ultimate on my Z32. So far the AEM is a lot easier for me to use.
Given the amount of tunability I was doing a standalone seemed better for the Miata (non-turbo to turbo, MAF to MAP, wasted spark dual coil to sequential COP and a whole lotta pressure...). The Z32 is going to be less drastic so a piggy back seemed adequate.
I think you will be happy with the AEM, if for no other reason than the fact that they have awesome tech support and great product support. Greddy, on the other hand, doesn't seem to have any support whatsoever but the piggy back scheme is generally pretty simple.

for a second i didn't think anyone was using anything AEM on bmws. but i have a friend in south carolina that is running the same AEM F/IC on his STS turbo. it works fine after he did something to his o2 sensors. but he got it wired by an AEM master tech. I do have hope. haha so yeah i think i would be happy with AEM too. Thanks for all your help my friend. once i go get that book i'll let you know what i think.

Originally Posted by Voodoo

Oh.

lol