1987 325is

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dsobering47

2
#4
Messages
129
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0
Location
florida
#4
new suspension, new rims/wheels, better brakes, repaint it, maybe different seats, exhaust, camshaft, new belts, new radiator, new speakers and subs...........anthing i left out?[:D]

I wanna make it the bestest car ever[hihi]
 
E

epj3

Senior Member
#6
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7,370
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0
Location
Lancaster, PA
#6
StuartMchenry said:
Yea, different bumpers [:p]

Why are you going to get a new camshaft?
Click to expand...
I'm pretty sure it's becuase it can add power beucase they change the timing of the valves (basically a perminant "variable valve timing", only it never changes)
 
D

dsobering47

2
#7
Messages
129
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0
Location
florida
#7
Yea, i wanna just use the M20 and make it to the max. I dont really want to transplant another engine in there, so im just gonna balls-to-the-walls it. O yea.......and new floormats[thumb]
 
S

StuartMchenry

New Member
#8
Messages
14
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0
Location
Northern Michigan/Triad North Carolina
#8
dsobering47 said:
Yea, i wanna just use the M20 and make it to the max. I dont really want to transplant another engine in there, so im just gonna balls-to-the-walls it. O yea.......and new floormats[thumb]
Click to expand...
Balls-to-the-wall will require a hell of a lot more than a new camshaft and an exhaust.

If you want a balls-out M20, you need:
-3.0L/3.1L fully forged, 10.2:1 bottomend
-ported to the 9's cylinder head
-5 angle race valve job
-Schrick dual pattern or 288camshaft
-extrude honed intake manifold
-big 6 AFM
-S50 21.5# injectors
-nice intake setup, exhaust system (no cat)
-4.11 rear end out of an M3
-dyno tuned software

THEN, you're 325 will be a rocket, and be putting about 200hp to the rear wheels.

You will LOSE performance with a hot cam on a 2.5L motor.
 
D

dsobering47

2
#10
Messages
129
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0
Location
florida
#10
stupid question: has anyone ever seen an e30 with more than 250 horsepower? (non-turbo/supercharged)

i didnt think it was possible to juice that many horsies out of an M20 engine.......

prove me wrong![thumb]
 
mikev

mikev

Active Member
#13
Messages
653
Likes
0
Location
Bournemouth, England (but still at my desk)
#13
StuartMchenry said:
Balls-to-the-wall will require a hell of a lot more than a new camshaft and an exhaust.

If you want a balls-out M20, you need:
-3.0L/3.1L fully forged, 10.2:1 bottomend
-ported to the 9's cylinder head
-5 angle race valve job
-Schrick dual pattern or 288camshaft
-extrude honed intake manifold
-big 6 AFM
-S50 21.5# injectors
-nice intake setup, exhaust system (no cat)
-4.11 rear end out of an M3
-dyno tuned software

THEN, you're 325 will be a rocket, and be putting about 200hp to the rear wheels.

You will LOSE performance with a hot cam on a 2.5L motor.
Click to expand...

I have an '89 325i with chip,sports exhaust (one free flow cat), and larger free flowing air box . it was on the dyno at 190 RWHP its euro spec (dunno if it make a differance) and all else is stock. 60 comes it a little under 7secs (beat the living c%%p out of a new 2003 civic R (he was not happy [:D] ) so you don't need to do too much to the little 6 potter under the hood to get a smile on your face (it'll also allow you to take up sign language as you fly by new cars ,the new 325i drivers especially [fake] )
 
mikev

mikev

Active Member
#14
Messages
653
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0
Location
Bournemouth, England (but still at my desk)
#14
Oh one more if you funnel the air directly from the front grill into the air box it'll force more air into the box giving the best performance, with other filters that just sit in the engine bay the runing motor heats up the air droping the power. mmmmmmm cold air induction [:p]
 
mrferg

mrferg

Guest
#15
Messages
1,021
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0
Location
Lansing, Michigan
#15
mikev said:
Oh one more if you funnel the air directly from the front grill into the air box it'll force more air into the box giving the best performance, with other filters that just sit in the engine bay the runing motor heats up the air droping the power. mmmmmmm cold air induction [:p]
Click to expand...
Where would you run that pipe, I am firmly aginst hibeam removal.
 
D

dsobering47

2
#16
Messages
129
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0
Location
florida
#16
in between the high and low beams on the driver's side.....correct? before i bought the cone airfilter, i did that with my airbox. Buy the cone airfilter and make yer own heatshield......it does make a difference!


[thumb]
 
H

Heine

Member
#19
Messages
68
Likes
0
Location
Minneapolis MN
#19
Looks like a great car.
First off replace the hot air intake with an airbox.Try washing & waxing it.Those wheels are great.A chip would be cool too.
It's a great car.Don't spend good money decreasing performance & drivability.
Maintanance items should keep you busy for a while.
Again --Great car!!!
 
D

dsobering47

2
#20
Messages
129
Likes
0
Location
florida
#20
i do wash/wax the car....but everytime i do, paint comes off the hood and sunroof since it is oxidizing and thats not helping it....the air intake really did make a difference, and i made a heatshield for it, so its much better than the factory airbox. Thanks anyways[thumb]
 
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