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Old 01-23-2013, 10:29 PM   #1
jack
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What's the best cam for NA 1985 b230? And what models did this cam come on.
I'm sure this has been asked tons of times

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Old 01-23-2013, 10:55 PM   #2
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Originally Posted by jack8745 View Post
What's the best cam for NA 1985 b230?
For the money that you can readily find in the cali JY's the B cam.


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Originally Posted by jack8745 View Post
And what models did this cam come on.
Early NA 240's till 81.
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Old 01-24-2013, 12:35 AM   #3
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Thanks Ken
How does it affect power/ ecomony/torque

Found my answer

Last edited by jack; 01-24-2013 at 12:47 AM..
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Old 01-24-2013, 07:04 AM   #4
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The hottest cam is the rare H cam but K's and V's are available over here with little bother.
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Old 01-24-2013, 07:31 AM   #5
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i've got a b for cheap if you are intersted
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Old 01-24-2013, 09:48 AM   #6
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Originally Posted by jack8745 View Post
What's the best cam for NA 1985 b230? And what models did this cam come on.
I'm sure this has been asked tons of times

Thanks
Jack
I used a K cam for several years (91 B230f) I finally got tired of its' bad manners creeping along in traffic.
I swapped in a B last Summer and like driving the car a whole lot more.
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Old 01-24-2013, 11:24 AM   #7
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This question gets asked a lot, so you may want to search.

There is a table of camshaft specs here: http://turbobricks.com/resources.php?content=camspec

In the USA, you can get a B-cam at a junkyard or from another turbobricker for cheap. It is a good daily driver cam that you can probably still pass emissions with. The A-cam is similar, but was not available in the U.S., but can be found on many Canadian cars.

The H and K cams are very rare, not found on many (if any) U.S. cars, and the latter two (the H and K) are not going to be great for daily driving - unless you like to drive at high RPMs, since they move the power band up, or if you use an adjustable cam gear to advance the cam timing so that the power band is brought down to lower RPMs. The H and K are unlikely to be very good at passing emissions or having a smooth idle though. However, in exchange for all that, the H and K cams do move a lot of air and have great performance in that respect.

The L and M cams are wimpy stock cams, plentiful in the U.S. and are good for passing emissions and a smooth idle. Same with the T cam for turbos.

The D, V, X and Y cams came in the Volvo Penta boat motors, as well as some cars. They are harder to find, although you do see V cams for sale on here regularly. They are a good combo of performance and driveability (with the D and V being more perfomance and the X and Y being milder, but possibly more driveable). But again, you'll want that adjustable cam gear to get the most out of them and to fine-tune things if you end up with one of these relatively rare cams.

The VX cam, which IPD sells new copies of for around $215, is very hard to find used, and is probably the best NA cam for improved performance with comfortable daily driving. You get a performance boost, but you still get a good idle and a decent chance at passing emissions. It doesn't move the power band up too high, so you don't have to drive at high RPMs. Supposedly the IPD VX cam is actually the VX3 grind (3 degrees advanced), but I have not confirmed this with them.

The other aftermarket performance N/A cams, such as the KG cams and the RSI N/A performance cam (which RSI doesn't have on their website right now, ), are more like the H and K cams in that they are not as good for daily driving, but better for performance - or people who drive their DD like a racecar :-)

If you really want to fine-tune your powerband, you'll want to get an adjustable cam gear.

Your car has the square-tooth timing belt, so one of these will work:

RSI - on sale right now! easy to adjust too.
http://yhst-26451710505916.stores.ya...sqadcamge.html

IPD's cam gear - the most affordable, but more difficult to adjust:
http://www.ipdusa.com/products/6445/...t-b21-b23-b230

But you could convert to a round tooth belt (you'll need a new distributor gear and crankshaft gear from a 93+ B230) and use either of these:

Nuke (sold in the US by yoshifab):
http://yoshifab.com/store/index.php?...d&productId=49

RSI round tooth:
http://yhst-26451710505916.stores.ya...otocamgef.html
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Old 01-24-2013, 04:40 PM   #8
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I have to disagree on the H cam.

Spec on my old 240 was B21 on K jetronic, 2.25 inch stainless exhaust system and running on LPG. I droppedin a H cam with the impression I might have to take it out. What a suprise it was very flat for what is supposed to be a hot cam! Tick over was perfect and low speed work was fine even on LPG. LPG does not like a hot cam especially with a close centre line angle. Once you hit about 3000RPM then it did start to take off. Running that cam made me decide that something a fair bit wilder would be a nice upgrade without comprimising the engine ability to labour especialy when towing heavy loads. With a 2.3 engine a lot wilder cam could be used.

The only trouble for some of you guys would be the smog test and swapping cams to pass would be a right pita.

The A cam is very readily available in the UK but it aint any performance cam
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Old 01-24-2013, 04:42 PM   #9
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Being in CA, don't throw away your old cam in case you have issues with smog with the new cam, you might be fine but better to be safe than sorry.
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Old 01-24-2013, 05:46 PM   #10
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I have a B cam in Wifee's '93 245. It was a nice upgrade from the M cam and didn't cost anything.
The old stuff is getting rare so get one while you can.

Edit: B cams were in the old no turbo Kjet cars. 1982 and down. Not sure about 1983. Seems like I had one with EFI but can't remember.
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Old 01-25-2013, 11:26 AM   #11
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I don't know how available it is there but I really like the A for a daily. Slightly better fuel economy, more mid-range power and it actually revs to around 5000 without sounding completely tortured.
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Old 01-27-2013, 03:06 AM   #12
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Wait, isn't the "M" cam the ultra rare high performance "Motorsport" cam ??
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Old 01-30-2013, 04:05 PM   #13
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lol
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Old 01-30-2013, 04:08 PM   #14
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Wait, isn't the "M" cam the ultra rare high performance "Motorsport" cam ??
I think you mean the "W" cam.
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Old 01-31-2013, 03:56 AM   #15
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OP get a V cam, nice and sophisticated...and revs like crazy...you can get one from me
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Old 02-02-2013, 07:08 PM   #16
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I run the enem V15 n/a cam in my 93 wagon without any other mods. 4 degrees advanced. It gave a nice performance boost but still has all the good low rpm torque of stock. Makes it a good running wide power band engine. Still has good economy and i've passed emissions without any problems multiple times on a 342k mile engine.
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1982 242 turbo. MVP coilover front and rear suspension. Bilstein HD. IPD 25/25 bars. 3" MVP exhaust. Cosworth Sierra hot side T3 .48 with upgraded stock .42 compressor. Ported 90+. D&F flowed 405 with enem V15 cam, True Track diff. Flat hood 1979 front grill Ecode park/turn lights with H4 Hella. 321k miles. Still running well with 322k miles.
1993 245 Classic, 360k miles, enem V15. 5spd. IPD bars and chassis braces. Genuine Volvo stock over the axle exhaust=+30hp
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