Im having my head rebuilt and its come up that my cam is shot. Looking at getting a performance cam that would be good for a turbo aswell. Anyone here running hotter cams in thier m20s? Or is stock best for turbo applications. My car wont be turboed for awhile and Im not sure if thiers a cam thats good for N/A and F/I. I have an 88 325iX. And help would be appreciated as the machince shop is waiting for my descion! (dont flame for a turbo iX I already know the risks)
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Summer '85 E24 635csi Winter '88 E30 325iX, I lose 25% of my hp before I even turn the key.
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I like my 284/272 shrick, but I have no idea how well it would work for a turbo. you might want to go with something milder like a 272. -
How's the idle with the 284?Originally posted by nandoTrevor Ely
'95 M Sport 540i - '00 A4 1.8TQMS - '85 190E 2.3-16
'88 535is - '87 325e - '89 325is - '91 318is - '90 325is - '96 328isComment
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Did u notice any gains with it nando?Summer '85 E24 635csi Winter '88 E30 325iX, I lose 25% of my hp before I even turn the key.
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I thoroughly enjoy my 272, very noticeable up top...and it's so mild that it doesn't kill your tq.Originally posted by HawkTrevor Ely
'95 M Sport 540i - '00 A4 1.8TQMS - '85 190E 2.3-16
'88 535is - '87 325e - '89 325is - '91 318is - '90 325is - '96 328isComment
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Are the stock cams tuned for torque?Summer '85 E24 635csi Winter '88 E30 325iX, I lose 25% of my hp before I even turn the key.
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Hawk where in denver are you? Where is your head being rebuilt? Hit me up with a PM.
Originally posted by DaveCNComment
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Also did you guys put in the Schrick valve springs?Summer '85 E24 635csi Winter '88 E30 325iX, I lose 25% of my hp before I even turn the key.
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Anything wilder than a 262 is a poor choice for FI. Too much overlap (which is what makes a kick ass NA cam) is a bad idea in FI, your intake charge will blow out the open exhaust valve.
Personally, I would use the stock cam on FI.
Luke
Closing SOON!"LAST CHANCE FOR G.A.S." DEAL IS ON NOW
Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398
Thanks for 10 years of fun!Comment
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i ran a 290 dibilas dynamics cam in my 325, and it idled good enough for street, and ran great. no reason for schrick springs, just get origional BMW new ones. guaranteed you wont break a rocker arm, and german autobahn tested with countless revlimiter bouncing! i though a 272 was the stock profile??? and no, i really didnt think it was that HUGE of an improvement. also didnt think that cam, with 19# inj., and M30 air flow meter swap really made a large improvement. used alot more gas though.
go with a 290 or 300 if you can get a dibilas cam, they are a german company here in germany, and I know BMP sells thier products, and rebadges them with thier logo, so maybe you can get a cam from them. the price is almost half the price as a schrick too. and if your in germany, they will dyno you car for a very small price if you want after you buy from them, so its not garbage.Comment
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yes, much more than something like a chip (which basically did nothing). my head is also ported though, not stock. I dunno, I've heard others say it doesn't make much difference, but to me it was like night and day. much better throttle response, and going from part throttle to full throttle is "whoa" instead of "meh" with the stock head/cam. I'd like to dyno it this spring, but we'll see how that goes.Originally posted by Hawk
my idle is fine, once it's warmed up it runs pretty smooth really.
also, I didn't notice any loss in torque, but the surge from 3500-6000rpm is addicting as hell! I also love the sound, but that could be because of the shorty headers. I'm using stock valve springs (new) which shrick says is just fine with this cam.Comment
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Originally posted by mikeedler
I know a guy here is VA who has over 280,000 mi, IFRC, on his es that has a dibilas 300something cam. Its still got the stock bottom end, he said it runs great, idled okay but his gas mileage went to total shit.--WillComment
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