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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 09-03-2015, 04:38 PM   #1
Typeone08
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Camshafts

I have a 325i and I was thinking of putting 330i cams in it cause I can get a good deal on some, but my question is will I gain any hp and will it affect my emissions here in Cali? Any help would be appreciated.

Ps the only mods I have are a afe stage one intake, eBay headers, and power pulleys and a sprint booster.

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Old 09-03-2015, 05:04 PM   #2
djdonis
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The short answer is NO, you will not gain any HP.
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Old 09-03-2015, 05:13 PM   #3
Typeone08
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Ok just wanted to know before I spent unnecessary money lol.
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Old 09-03-2015, 05:57 PM   #4
Dave1027
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If you need more power, sell the 325 and buy a 330. That way you not only get the cams you get the whole dam engine.
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Old 09-03-2015, 06:13 PM   #5
zander271
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SuperChanger which would be way more HP or schrick camshafts.

I know a little because I have done allot of home work as to the direction I'm going to take my 330i.

Rob43 is a great resource btw. I would PM him or he may have heard his name called and might pop into the thread.
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Old 09-03-2015, 08:40 PM   #6
Gunsnbacon
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As far as I know the heads are the same and the cams are only slightly different. The difference between the two motors is the intake size/throttle body and bore/stroke of the bottom end.
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Old 09-03-2015, 08:44 PM   #7
Typeone08
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Ok thanks guys Ima pass on the cams.
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Old 09-03-2015, 10:40 PM   #8
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The cams between a 325 & 330 Are Different. The OE 325 cams Suck & the 330 cams are Fair. Would you make more WHP with them,.......yes. But I'd put a 5 to 6 WHP guess on it (my guesses are pretty good) making it not worth the effort.

If you do want cams, I have a source on them, a perfect set of 250/254 reground/reworked cams would cost you $695. These 250/254 cams would be at the 2/3rds point between stock 330 cams & schrick 264/248 cams in performance.

Compared to your 325 cams, the 250/254 cams would feel like magic. I have no idea about CA compliance, so that would be up to you.



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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !

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Old 09-03-2015, 10:49 PM   #9
Typeone08
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Lets just say I did go with the 330 cams would I need a tune with the stock computer settings?
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Old 09-03-2015, 11:01 PM   #10
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Question:

Would you be installing Both intake & exhaust 330 cams ?



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SUMMIT POINT WV 1:24:229 S.C.C.A.
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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!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 09-04-2015, 09:10 AM   #11
Typeone08
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Yes.
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Old 09-04-2015, 02:09 PM   #12
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Yes.

This question was a test, Unfortunately this was the wrong answer. You clearly need to do A LOT more research on this subject so you don't get screwed.

One of them is identical, you'll need to do the research to figure out which one that is. IMO, even if you swapped the 1 correct cam, this process is Very difficult to justify the probable 5 or 6 WHP.




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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"

NEW E46 Xi COILOVERS DISCOVERED FOR ~$729 SHIPPED
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!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 09-04-2015, 02:10 PM   #13
Typeone08
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Yeah your right. I'll stick with my stock ones till I get some $$$ and I'll consider your offer on the cams.
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Old 09-04-2015, 02:24 PM   #14
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I did cams, would not do it again unless I had a spare engine I had time to build. With all the work it takes, might as well just rebuild the entire head and put a nice head gasket on. I wish I did the CCV original though when I pulled the head but I had no idea that was problematic at the time.
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Old 09-04-2015, 02:36 PM   #15
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I did cams, would not do it again unless I had a spare engine I had time to build. With all the work it takes, might as well just rebuild the entire head and put a nice head gasket on. I wish I did the CCV original though when I pulled the head but I had no idea that was problematic at the time.

I hear ya.

Going from 330 cams to ZHP cams is probably about a 4 to 5 WHP gain, so I totally agree with you on that NOT being worth the hassle.



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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)
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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!!
I have a GREAT/CHEAP source on KONI SPORT Shocks & Struts at the moment !
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Old 09-15-2015, 09:39 PM   #16
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I would never do cams from a 330 into a 325 waste of time. I put shick 264/248 in my 330 and loved it though. It made a much better sound as well as you could feel the response. loved that mod but the parts and labor cost me a pretty penny at the time
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