What Cams (HELP PLEASE)!!!

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sideways_king
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Tue Jul 24, 2012 11:32 am

hi all

i want more power from my m20b25 and am thinking of the cam road but dont know what route to take and who to take it with.

any info on this will be of great help thank you!
sideways_king
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Tue Jul 24, 2012 11:34 am

oh i forgot to mention i already have a 6-branch and full stainless on her :D
steve_k
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Tue Jul 24, 2012 12:06 pm

well if you want a fast road cam then you have a choice of the catcams 274dg or schrick 284/272dg.

after that your looking at very lumpy cams & a dodgy idle.

use the search function & you'll be surprised at the results you get.
if it's got t*ts or wheels it's bound to be trouble...............prove me wrong.
getting oral sex off an ugly person is like rock climbing.....don't look down ;)
Eddie25
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Tue Jul 24, 2012 12:39 pm

I've got the 274 Catcam in mine and cant recommend it highly enough, below 3000 rpm its all very civilised but climb past it and you get a savage noise and a shove in the back :)
Rust is lighter than carbon fibre.
steve_k
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Tue Jul 24, 2012 1:16 pm

Eddie25 wrote:I've got the 274 Catcam in mine and cant recommend it highly enough, below 3000 rpm its all very civilised but climb past it and you get a savage noise and a shove in the back :)
+1 if your on a budget it's the one to go for.
if it's got t*ts or wheels it's bound to be trouble...............prove me wrong.
getting oral sex off an ugly person is like rock climbing.....don't look down ;)
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reggid
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Tue Jul 24, 2012 10:48 pm

i would go for the schrick, the catcam 285 (formely 273) is good for topend but all the dyno plots show they are lame off cam which is not ideal for the street
E30 325is with M20B31
HairyScreech
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Wed Jul 25, 2012 2:35 am

the shrick works out quite acceptable if you look at the exchange rates.
go for the schrick, its most likely what i will do.
2.8 development thread http://www.e30zone.net/modules.php?name ... c&t=170822

m3.3.1 m20 thread - now running, chip needed - any volunteers?
http://www.e30zone.net/modules.php?name ... =viewtopic&
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basketweave
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Thu Jul 26, 2012 12:55 am

Or you can go Dblias, they have a wide range of cams, I went with the 276.
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kipsy
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Mon Aug 06, 2012 4:39 pm

My 325 was making 172 bhp with a rebuilt standard motor with a fairly decent exhaust and standard manifold. If I was to fit a cam shaft any ideas what sort of power it would make? Just weighing up the options as got an m52 in stock but might not fit for a year or so but curious to optimise the m20
faze30
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Sun Jan 27, 2013 1:25 pm

My cabrio is in the process of being completed.

With a shrick cam. Btb 6 branch and a wild chip

From 170bhp it should be towards 192bhp+
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Kedge
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Sun Jan 27, 2013 1:52 pm

I went for a 272 Schrick for my current M20B28 build, anything more and I was getting into clearances issues.

I bought mine from this guy on eBay, http://myworld.ebay.co.uk/europetoameri ... 7675.l2559 Worked out much cheaper than anywhere else and the parts come straight from Schrick so no import fee worries.
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faze30
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Sun Jan 27, 2013 6:00 pm

I got my shrick cam from ca automotive at trade price. Still expensive.

How is the drive and performance improvement since fitting your cam?
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gooner1
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Mon Feb 11, 2013 3:34 pm

Dave, did you go for the uprated springs as well?
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Kedge
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Mon Feb 11, 2013 3:43 pm

Yes Rob, I've read plenty of people say they've retained the old springs and been OK. I chose to go with the Schrick springs to cover my arse since the lump will have cost a good whack of money, not worth the risk IMO.
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'86 Polaris 316 M20B28 Rebuild
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