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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 01-08-2013, 02:49 PM   #41
Steven747
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Your going to love them.. The growl is awesome and it just pulls all the way
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Old 01-08-2013, 03:14 PM   #42
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Now if G.A.S would get the damn tool in stock they'd be in already!

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Old 01-08-2013, 07:04 PM   #43
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Originally Posted by secono330ci View Post
Even for a Zhp, I'd still say the Schricks are worth it...only if you're doing the install yourself. I have them at my house waiting to be installed and you can definitely tell the difference between the 264 intake cam vs the 248 exhaust cam. The lobes are significantly bigger.
Errbody jus' jealous of ZHP cams. I hear if I install Shricks I will have losses, thats how truly astounding ZHP cams are.
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dont listen to these fuQ faces... just go to a junk yard and get a used complete left rear end. i cracked my left rear control arm on the highway because i was driving w/o shocks... lol! ***Was too busy caking on these bitches instead of taking care my car!***
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Old 01-09-2013, 11:16 AM   #44
charlie-boi
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Yeh I'm find zhp cams for $900 seems steep regarding gains. Shrick maybe but still alot and from the sounds of things alot of drivability can be lost.

The main reason I wanted something like this is the 330 engine I've got is pretty tired with over 100k on the clock. I dont know areas of the engine where bhp is lost over time but was considering what else could liven the old girl up before she goes in the car? I have a very low milage 325 engine which dhares many parts was wondering if there's any point interchanging some?
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Old 01-09-2013, 11:30 AM   #45
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Originally Posted by charlie-boi View Post
Yeh I'm find zhp cams for $900 seems steep regarding gains. Shrick maybe but still alot and from the sounds of things alot of drivability can be lost.

The main reason I wanted something like this is the 330 engine I've got is pretty tired with over 100k on the clock. I dont know areas of the engine where bhp is lost over time but was considering what else could liven the old girl up before she goes in the car? I have a very low milage 325 engine which dhares many parts was wondering if there's any point interchanging some?
No drivability is lost
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Old 01-09-2013, 12:11 PM   #46
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I went from a preface 330ci ---> ZHP and I can honestly say the ZHP pulls alot better but $900 just isn't worth it!

Save the $$$ and get a SC
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Old 01-09-2013, 02:19 PM   #47
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No drivability is lost
Says you. Every mod is a compromise. I've heard some say there are flat spots with the Shrick cams.

If cam lift was truly compromise-less, why didn't BMW do what you've done with your cams?

Thought so.
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dont listen to these fuQ faces... just go to a junk yard and get a used complete left rear end. i cracked my left rear control arm on the highway because i was driving w/o shocks... lol! ***Was too busy caking on these bitches instead of taking care my car!***
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Old 01-09-2013, 03:18 PM   #48
///Mvious
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Says you. Every mod is a compromise. I've heard some say there are flat spots with the Shrick cams.

If cam lift was truly compromise-less, why didn't BMW do what you've done with your cams?

Thought so.

hmmm...I'd say BMW didn't want their 330 motor sounding/looking cammed when it's running...the 264's would put it a bit over the top for a car off the lot...I think they would have taken the performance but slightly too aggressive
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Old 01-09-2013, 04:25 PM   #49
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It does have some dead spots below 3500 with the cams. But definitely worth it for anyone performance minded... And I still have yet to find out if those dead spots will go away after a tune for the cams
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Old 01-09-2013, 04:41 PM   #50
WheyArea
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It does have some dead spots below 3500 with the cams. But definitely worth it for anyone performance minded... And I still have yet to find out if those dead spots will go away after a tune for the cams
You would say $900 for +10hp is worth it?? These cams were $500 just 1 year ago....
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Old 01-09-2013, 06:10 PM   #51
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You would say $900 for +10hp is worth it?? These cams were $500 just 1 year ago....
He has Shrick cams.
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dont listen to these fuQ faces... just go to a junk yard and get a used complete left rear end. i cracked my left rear control arm on the highway because i was driving w/o shocks... lol! ***Was too busy caking on these bitches instead of taking care my car!***
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Old 01-09-2013, 06:38 PM   #52
///Mvious
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Originally Posted by WheyArea View Post
You would say $900 for +10hp is worth it?? These cams were $500 just 1 year ago....
Schrick 268/248 $500 a year ago?? I've never seen new for less that $1.1k...or are you talkin ZHP cams?
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Old 01-09-2013, 06:40 PM   #53
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He has Shrick cams.
So $900 for +10 maybe +15 hp? That just doesn't sound like a solid ROI for the money. OP wants to know if it's worth it and it basically boils down to

$500 ZHP = 10 hp

$900 Schrick= 10-15 hp

http://forum.e46fanatics.com/showthread.php?t=782973
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Old 01-09-2013, 07:45 PM   #54
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Originally Posted by zhp43867 View Post
Says you. Every mod is a compromise. I've heard some say there are flat spots with the Shrick cams.

If cam lift was truly compromise-less, why didn't BMW do what you've done with your cams?

Thought so.
i found a guy on bimmer forums selling them for 450 shipped so i lucked out

and for the flat spots. they are very very minimal and with headers its not even noticable. possible my ati damper also helping out. but on my car its nothing but better than the stock cams
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Old 01-09-2013, 08:53 PM   #55
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ZHP cams = useless. Don't bother, even if you get the for free and can install them yourself.
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Old 01-09-2013, 08:54 PM   #56
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And for those who wanted to know, Shrick Cams = no noticeable losses through out the RPM range.
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Old 01-09-2013, 09:01 PM   #57
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Originally Posted by zhp43867 View Post
Says you. Every mod is a compromise. I've heard some say there are flat spots with the Shrick cams.

If cam lift was truly compromise-less, why didn't BMW do what you've done with your cams?

Thought so.
Says me too. ZHP cams over stock cams isn't worth the hassle. The difference in lift AND duration is minimal. Schrick 264/248 cams are a large step up in the ability to flow more air, and though it is rarely done they should be complimented by matched valve springs and a mild port job on the head along with a retune. This sounds like a lot of work but it's how your properly build a motor.
As far as these "flat spots", they come from the stock tune. I noticed huge differences in my fuel trims after installing Schrick cams, with only having a Unichip to trim my fuel curve I got all the "flat spots" out and my fuel trims are back to almost zero.
As far as the compromise, yes you will lose a bit of torque. A larger lift cam lowers velocity at low RPM's, it's just physics. This is why BMW came out with variable valve lift, to get good torque and good HP.
To the OP, ask yourself what you REALLY want to do with your car. Do you mainly drive around town and never take it to the track, them big cams wouldn't be the best choice. Do you mainly drive the snot out of it maybe take it to the track on occasion then get the Schricks.
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Old 01-10-2013, 06:17 AM   #58
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ZHP cams are worth it if you get them cheap.
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Old 01-10-2013, 09:06 AM   #59
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ZHP cams are worth it if you get them cheap.
no they arent. even if you diy you need to get your hands on the gas tool's or have someone time them which is a major pita
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Old 01-10-2013, 05:23 PM   #60
SoloII///M
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no they arent. even if you diy you need to get your hands on the gas tool's or have someone time them which is a major pita
The tools are easy to find. I borrowed them locally and swapped my cams in a few hours without a problem. It's not particularly difficult if you're meticulous.

The (tuned) 15hp gain is more than worth it to me given that it's a race car.
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