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Old 11-08-2003, 12:00 AM   #16
nzer
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Re: Re: to diegom6

Quote:
Originally posted by diegom6
I mean, ping it's like knock, likr the knock sensor, I think most of people call it pinging!


Currently I'm runing 4 PSI at full throttle, I noticed when I boosted like 10 PSI once, started to pinging, even with the FMU, probably I need a biggers injectors and most imoportant, retard the ignition, thing what I will do soon as I install the SMT6 module unit...
only 4 psi? Can you not program motronic to retard

(i ditched my stock L-Jet ECU.. its damn useless under boost)
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Old 11-08-2003, 03:47 PM   #17
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re: E46_lover

My engine was totally stock for the moment but my compression ratio is 9.0 :1

i think for 8 to 10 psi it will be ok.
my turbo is TB4129 from garrett it's a Nice T4 .

and the rest is you see in the first picture.

thank you

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Old 11-08-2003, 08:23 PM   #18
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You should be fine with that kind of boost. I do suggest you start off smaller, like 5psi.. then get the wastegate modified to allow greater boost.
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Old 11-09-2003, 03:02 PM   #19
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re nzer

Yes sure i will star with 3,5 7 psi and i will check if i dont have problem. but thank you for your consult .

my wastegate go to 13 psi after you need a boost control.

thank you

Dave
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Old 11-10-2003, 12:32 PM   #20
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Re: re nzer

Quote:
Originally posted by davide30
Yes sure i will star with 3,5 7 psi and i will check if i dont have problem. but thank you for your consult .

my wastegate go to 13 psi after you need a boost control.

thank you

Dave
if so change first the wastegate for one that activates in low boost... I recomend you put a copper head gasket ( look for BMWrt replacement ) it's about 2.05mm and it should drop your compression to 8.5:1 or so....when you do that..find a set of head stud bolts, for a stronger ones..the OEM can't handle that press, it's wear. there is a page whos sells a kit CNC stud bolts for our M20.. I think it's www.raceware.com or something like that...that is what I will do once I change my head gasket and turn the boost more..

Do you have pic of that Nice T4?
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Old 11-10-2003, 08:29 PM   #21
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re: diegom6

About the wastegate I buy the spring who go inside the first 0 to 3 psi ,the second 4 to 7 psi, the tird 8 to 10 psi , the last one 11 to 13 psi and after i need a boost control.

for the head gasket i read in article ,when he was in good shape it.s ok for the boost i wont because i rebuilt my head last winter.
for the compression i read also in the same article with 9:1 i'm ok for 15psi or less. But I think the next winter i put a lower compression copper head gasket and an upgrade of all my turbo kit.. But for this winter i make a basic turbo kit.

I'm sorry i didnt have pics of my T4.

wich intercooler do you use and tale some information about IC

thank you
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Old 11-10-2003, 08:40 PM   #22
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hera re some pics of my custom IC, I need to build another one, a bigger one and tube must be straight...





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Old 11-10-2003, 11:58 PM   #23
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what manifold did you guys use? where did you buy the Vortech?
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Old 11-11-2003, 01:22 AM   #24
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re:Miguel

I do my manifold , i buy a MIG machine and I do it my self.
for the vortech me I buy it on ebay , but he was brand new in the box . and you can buy it on www.vortechsupercharges.com

Thank you

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Old 11-11-2003, 01:24 AM   #25
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!!!

the web site is www.vortechsuperchargers.com
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Old 11-11-2003, 01:31 AM   #26
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my gauge

I will instal all these gauge in my car. I all bought this gauge on ebay.
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Old 11-11-2003, 01:32 AM   #27
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A\F ratio meter

phantom
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Old 11-11-2003, 01:33 AM   #28
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fuel pressor
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Old 11-11-2003, 01:34 AM   #29
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EGT gauge
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Old 11-11-2003, 02:47 AM   #30
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So for a basic turbo setup to run a steady 5Psi on a stock M20 (My car is a 1989 525i with stock 8.8:1 compression) what would you need other than:

Exhaust manifold (custom make one, or use 324td or 524td manifold $?)
Turbo (Garret T-25 turbo from an eclipse, used $120)

turbo timer (Used HKS HKS Turbo Timer Type 1 $100)


Blow-off Valve (turboXS BOV, $200 new $100 used)

Boost gauge ($5 used)

Fuel Management Unit (Cartech FMU, $160 used)


Besides piping and possibly bigger injectors, what is missing? would you need an intercooler (Greddy universal FMIC $250) for a small boost application?
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