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Old 03-30-2020, 05:58 PM   #26
LC4CARL
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Great thread.
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Old 03-30-2020, 08:32 PM   #27
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Just out of curiosity, does anyone know what cam my car likely has stock? I'd like to compare it to some of those other ones on the big cam chart before making my decision and don't really feeling like pulling the VC right now. It's a 1992 244 base model and it originally came with an automatic. It's a US spec model with no EGR and the block has an "R" printed on it that's spaced away from the "B230F" print. Not sure if any of those details make a difference. If there is no way of knowing what cam I have without pulling the VC, I'll just pull the VC...
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Old 03-30-2020, 08:36 PM   #28
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Quote:
Originally Posted by Nickagriffin View Post
Just out of curiosity, does anyone know what cam my car likely has stock? I'd like to compare it to some of those other ones on the big cam chart before making my decision and don't really feeling like pulling the VC right now. It's a 1992 244 base model and it originally came with an automatic. It's a US spec model with no EGR and the block has an "R" printed on it that's spaced away from the "B230F" print. Not sure if any of those details make a difference. If there is no way of knowing what cam I have without pulling the VC, I'll just pull the VC...
All US 240 B230's got the M cam.
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Old 03-30-2020, 08:50 PM   #29
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All US 240 B230's got the M cam.
That's disgusting...

thanks for the info though
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Old 03-30-2020, 09:15 PM   #30
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The T cam.
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Old 03-30-2020, 10:35 PM   #31
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Originally Posted by Nickagriffin View Post
That's disgusting...

thanks for the info though
They're really fun between 2,000 and 4,000 rpm though
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Old 03-30-2020, 11:57 PM   #32
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They're really fun between 2,000 and 4,000 rpm though
Whose Volvo really spends any time there?
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Old 03-31-2020, 03:22 PM   #33
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Mine do every day they get driven. n/a V15 cam loves 1500-5k rpms and I'd go higher if it wasn't in a 430k mile engine. The turbo has a relatively newly built head and goes to 6k quite often while it's being driven.
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Old 04-01-2020, 05:28 PM   #34
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Quote:
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Whose Volvo really spends any time there?
Most people's spend the majority of time in that range, that's why the M and T cam (among others) were used from the factory.
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Old 04-07-2020, 08:39 PM   #35
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I found a ENEM C2 cam for a good price, anyone have any experience with it? I think if I get it I'd get another 530 head and do stiffer springs, retainers, and a port job. Also plan to run GT35 turbo & eventually turn the rev limit up some. Maybe would do bigger valves at the same time.
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Old 04-07-2020, 08:51 PM   #36
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Too much overlap to be a good turbo performance cam in my opinion. Typically when you tell enem you want a turbo version of one of their cams. They grind your cam with less overlap for turbo use. Like the difference between a V15 n/a cam vs a V15 turbo cam. The overlap is 109 vs 112 respectively. Even when Hank Scorpio bought a K15 it had less overlap for the turbo version.
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Old 04-07-2020, 09:12 PM   #37
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Oh alright, thanks. I'm gonna spend some time to properly research cam angle and lift so I can figure out exactly what I need rather than just looking at the cam "stage"
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Old 04-07-2020, 09:19 PM   #38
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It's a good rule of thumb for turbo version cams. But the stages like for the chart for enem cams is typically about the same. Like the C2 cam. You could probably have them grind it for less overlap for turbo use. It's done to help optimize the flow differences from n/a to turbo use.

Another good rule of thumb is to always use the least aggressive of a cam that will accomplish your goals.
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Old 04-07-2020, 09:25 PM   #39
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Why is it better to use the least aggressive cam that will accomplish my goals? Efficiency?
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Old 04-07-2020, 09:38 PM   #40
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Quote:
Originally Posted by Nickagriffin View Post
Why is it better to use the least aggressive cam that will accomplish my goals? Efficiency?
Drive ability. The proper cam will have the power you want up top. But the engine will have a power band that you can enjoy. Unless peaky race only performance is what you seek. I figured you want a powerful fun but street useful engine.
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Old 04-07-2020, 09:47 PM   #41
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For example some of the guys here with powerful turbo engines use the enem V16T cam. Gsellstrm, and thelostartof come to mind. Remember the more aggressive you go while keeping displacement the same. You are moving the powerband up.
If you take a look at the chart on the enem web site. I Hope it's still there. They show you the rpm band the cams are optimized for. For example the V15 both turbo and n/a are 2k to 6k rpm cams. A V16 turbo or n/a is a 2.5k to 6.5k rpms cam. The chart is very helpful. I wish that part was on the turbobricks cam spec chart. Plus that isn't to say that the V16 doesn't rev higher than that with power. It's the designer of the cam giving you the optimal range so you can figure out your needs. Like the notes that say stage one, two, three, etc.
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Old 04-07-2020, 10:25 PM   #42
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You're going to do a lot of work hogging out a head when bolting a bigger hotside on, a header, and a cam will more than make you happy. My stock 530 casting breathes happily enough to bounce off the rev limiter at 7k+ and make well north of 300whp. ymmv
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Old 04-10-2020, 04:51 PM   #43
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Quote:
Originally Posted by dl242gt View Post
Remember the more aggressive you go while keeping displacement the same. You are moving the powerband up.
If you take a look at the chart on the enem web site. I Hope it's still there. They show you the rpm band the cams are optimized for. For example the V15 both turbo and n/a are 2k to 6k rpm cams. A V16 turbo or n/a is a 2.5k to 6.5k rpms cam.
Alright thanks, I'll keep that in mind while hunting for a cam

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Old 04-11-2020, 03:24 AM   #44
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Let’s say your HP goal is 300hp(the K cam, IPD Turbo cam or V15 Turbo are fine, BTW). A small cam(like the three mentioned) that makes your wanted peak 300HP at 5500rpm will make more torque than a large cam that makes the same 300HP but at 6500rpm. It’s not just more efficient, it’s noticeably faster!

Ps, no need for a 531 unless you’re going for well over 300hp. Even then, a nice 530 might be better if it’s a street car. The 531 has larger intake ports which hurt velocity(response, efficiency and torque) unless you have a camshaft with over 12mm or lift and need to rev it up high. Basically.

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Old 04-11-2020, 07:43 PM   #45
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Quote:
Originally Posted by Nickagriffin View Post
Why is it better to use the least aggressive cam that will accomplish my goals? Efficiency?
More area under the curve. Higher average (and more usable) torque. (that's what everyone has been saying)
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