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Old 04-06-2017, 01:39 PM   #26
Surfingbird
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Originally Posted by snailpoweredbrick View Post
Assuming a performance cam is installed, doesn't the RPM's diving at higher rpm have a lot to do with the Intake manifold, throttle body size, exhaust manifold, turbo and head work? If you don't have the pervious parts I mentioned upgraded, I don't think it will matter that much how big of a cam you put in, the engine acts as a restriction.

This is a question, I'm just curious.
My intake manifold is stock, but exhaust manifold and so on are not. I run big manifold pipes for topend, and 4" exhaust all the way back, paired on a 76mm turbo. I find that the plenum intakes look to race to use in a daily car.
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Old 04-08-2017, 12:19 PM   #27
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I would suggest an enem V16 turbo cam. The power band is 2500-6500 rpm. Or the nastiest cam without changing cam followers from enem is the K15 which would support that power quite well. A few years ago when I got one for Hank Scorpio enem made a turbo version of the K15 for him. That is what is in his old 242 with the Holset on it.
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Old 04-10-2017, 05:53 PM   #28
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I would suggest an enem V16 turbo cam. The power band is 2500-6500 rpm. Or the nastiest cam without changing cam followers from enem is the K15 which would support that power quite well. A few years ago when I got one for Hank Scorpio enem made a turbo version of the K15 for him. That is what is in his old 242 with the Holset on it.
Interesting! did not know they do custom work.
I wonder why all the turbo cams do not really support a lot of revs.. I bought 56kg springs, which should get me up there, if i get a good cam to pair them with.
Might just be the fact that the redblock does not breath too well over 6k rpm
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Old 04-11-2017, 08:26 PM   #29
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I have a V15 version in both of my sig cars. Their cams have served me well for many years.
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Old 04-12-2017, 06:20 PM   #30
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Agap, enem, kl-racing, sts, sten parner, catcams, kg-trimning, sam steffanson, folkraceshop, etc all sell performance cams.
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Old 04-13-2017, 02:11 PM   #31
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Yeah i know of a lot of makes, just wondered if anybody had some dyno results with different cams, as the car is not exactly stock no more. Not that it is a race car, but i do not care a second if it pulls in the low end, i just want power when i get boost

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Old 04-21-2017, 06:17 AM   #32
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I have one last question, where can i find a cam with asymmetrical grind? I figured some more duration and lift on exhaust will be the way to go.
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Old 04-21-2017, 08:58 AM   #33
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With an IPD T cam or equivalent you should be able to pull some extra top end with some cam gear tuning. I am about to try one, anyone have any good results retarding the cam a few degrees?
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Old 04-21-2017, 11:01 PM   #34
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I have one last question, where can i find a cam with asymmetrical grind? I figured some more duration and lift on exhaust will be the way to go.
RSI stage 2 turbo cam or KG2T have more lift and duration on the exhaust side.
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Old 04-23-2017, 09:22 AM   #35
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With an IPD T cam or equivalent you should be able to pull some extra top end with some cam gear tuning. I am about to try one, anyone have any good results retarding the cam a few degrees?
I do not believe the ipd turbo cam aggressive enough. Aiming for 450 whp capable cam, so i think i need a more race ish one.
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Old 04-29-2017, 04:35 AM   #36
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B230ft K block, 16t, freflow 3",stock 530, KL-Racing t2 cam,big ic, 044, fpr, stock lh2.2
1.2-1.3bar turbo pressure.
dyno runs with cam adjusting,very nice gains after adjusting cam
v2 run +2 degrees advance
v3 run +4 degrees advance
v4 run +6 degrees advance
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Old 04-30-2017, 08:40 PM   #37
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I would suggest an enem V16 turbo cam. The power band is 2500-6500 rpm. Or the nastiest cam without changing cam followers from enem is the K15 which would support that power quite well. A few years ago when I got one for Hank Scorpio enem made a turbo version of the K15 for him. That is what is in his old 242 with the Holset on it.
I went from VX to V15 and than V16. Much happiness with V16.
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Old 05-02-2017, 03:36 AM   #38
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I went from VX to V15 and than V16. Much happiness with V16.
Cool, i did look into the V16. Seems to be nice! Does it work on OEM buckets? I intend to only upgrade springs, and maybe exhaust valves. Best regards.
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Old 05-07-2017, 09:56 PM   #39
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The C2 will eat the factory springs ;). But it will be a lot of fun for all out top end. What compression, headwork, turbo and intake?
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Old 05-08-2017, 01:44 PM   #40
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what springs would you recommend for the C2 (or the rsi stage3)?
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Old 05-09-2017, 03:32 AM   #41
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ideal rev range? what size valves?
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Old 05-09-2017, 06:20 AM   #42
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I contacted Enem, and they recommended either the K13 or K15 for my ideas. They seem to be some aggressive cams, so i think i will have a go at the K15 turbo. 292/292/111/115/12.5/12.5/2.6/2.0/ 0.40
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Old 05-09-2017, 02:04 PM   #43
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ideal rev range? what size valves?
all the RPMS. stock sized valves I think. realistically, no higher than 7500 unless the need is there (And the power is there)
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Old 05-09-2017, 08:37 PM   #44
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@Surfingbird Told you so @post 13 !! However if you are targeting 350 whp, don't go for K15, try K13 ... Tested in my build thread ...
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Old 05-10-2017, 04:22 AM   #45
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@Surfingbird Told you so @post 13 !! However if you are targeting 350 whp, don't go for K15, try K13 ... Tested in my build thread ...
You got the win haha!

Though i know of a swede running 498 whp on a 531 head at 2,3 bar (33 psi), why shouldn't i be able to run at around 400whp. I have around 270-300 whp right now i think (not measured, but calculated 340 crank horses or so)

I am really considering the K15, could always advance it a bit, if it is too high revving for me. I read something about the stock cast crank having some frequency issues at around 7500. So i'll keep it under that.
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Old 05-16-2017, 02:07 PM   #46
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BTW, this friend of yours, what is his displacement and what fuel does he run on ? And does he have bigger valves than stock ?

Only thing i have to notice, with 100 RON, or 100+88 = 94 (AKI), and K13 the result is a flat dyno chart, before knocking, but clocking the cam gear does not much, almost nothing. Advanced or Retarded. Of coure this result is perfect for me, but the question still remains !

Maybe running some serious octane booster will solve my question, if it is the fuel type or cam/head/valve/intake limit..
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Old 05-16-2017, 02:11 PM   #47
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BTW, this friend of yours, what is his displacement and what fuel does he run on ? And does he have bigger valves than stock ?

Only thing i have to notice, with 100 RON, or 100+88 = 94 (AKI), and K13 the result is a flat dyno chart, before knocking, but clocking the cam gear does not much, almost nothing. Advanced or Retarded. Of coure this result is perfect for me, but the question still remains !

Maybe running some serious octane booster will solve my question, if it is the fuel type or cam/head/valve/intake limit..
Straight up always seems to have the best curve, grosspolluter did a write-up on it iirc
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Old 05-16-2017, 03:35 PM   #48
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Quote:
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BTW, this friend of yours, what is his displacement and what fuel does he run on ? And does he have bigger valves than stock ?

Only thing i have to notice, with 100 RON, or 100+88 = 94 (AKI), and K13 the result is a flat dyno chart, before knocking, but clocking the cam gear does not much, almost nothing. Advanced or Retarded. Of coure this result is perfect for me, but the question still remains !

Maybe running some serious octane booster will solve my question, if it is the fuel type or cam/head/valve/intake limit..
And that was what, 425whp on a 9:1 B21FT before the freeze plug incident? Pretty respectable.

FWIW the max lift will depend on both the springs (coil bind) and the lobes clearing the head. You can always clearance the head (pretty sure Hank Scorpio had to clearance his a little for lobe clearance), but you will need to look at the coil bind situation.
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Old 05-16-2017, 04:42 PM   #49
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Straight up always seems to have the best curve, grosspolluter did a write-up on it iirc
As far as stock cams go this is true. Evidence also suggests that the RSI cams like less advance, but who knows without degreeing.
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Old 05-16-2017, 10:31 PM   #50
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It would be interesting to see with the split duration cams they offer.
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