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Old 03-22-2017, 05:43 AM   #1
Surfingbird
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Default Camshaft choice for 350whp+

Hello, i was wondering what camshafts you are running out there? I am getting some tighter springs, in order to achieve 7000 rpm. My car has a pretty big turbo, which should be able to blow air all the way up to at least 6500 rpm. I have spool at 3700 rpm ish.

But what cam suits this setup? I do not care if i get a little lumpy idle, as long as it pulls to hell when it spools. I need a cam that starts working at around 4k rpm. I am looking at KL racing T3 cam at the moment..
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Old 03-22-2017, 06:12 AM   #2
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good choice
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Old 03-22-2017, 07:09 AM   #3
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I'm in a similar situation setup right now. It currently has IPD Turbo and falls flat at 5900 rpm. Next up is a Enem C2 cam. I also have a rsi stage 3 if for some reason the C2 isn't a good fit. Will post dyno results. Basically, I need to sell some cams and stuff.

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Old 03-22-2017, 08:24 AM   #4
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Not sure how much power I'm making but I can tell you the rsi stg 3 pulls like mad...I have a 6800 limit and it pulls all the way there
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Old 03-22-2017, 10:50 AM   #5
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Not sure how much power I'm making but I can tell you the rsi stg 3 pulls like mad...I have a 6800 limit and it pulls all the way there
I did actually have a look at that one too. Seems like a good choice too. I just need to make sure my curve doesn't drop a lot after 5+k rpm. Need to keep up that power.. Otherwise i risk loosing boost between changes.
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Old 03-22-2017, 11:02 AM   #6
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Originally Posted by nomad1221 View Post
I'm in a similar situation setup right now. It currently has IPD Turbo and falls flat at 5900 rpm. Next up is a Enem C2 cam. I also have a rsi stage 3 if for some reason the C2 isn't a good fit. Will post dyno results. Basically, I need to sell some cams and stuff.
I can relieve you of a cam 😂
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Old 03-22-2017, 11:38 AM   #7
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Just use whatever cam comes stock in your LS engine and add a chinabay turbo.
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Old 03-22-2017, 04:04 PM   #8
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Quote:
Originally Posted by nomad1221 View Post
I'm in a similar situation setup right now. It currently has IPD Turbo and falls flat at 5900 rpm. Next up is a Enem C2 cam. I also have a rsi stage 3 if for some reason the C2 isn't a good fit. Will post dyno results. Basically, I need to sell some cams and stuff.
Price for that stage 3 cam?
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Old 04-05-2017, 06:39 AM   #9
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Bump. Still could use some input.

What is the maximum lift on stock 531 head, with upgrade springs ? I want to max the **** out of that 531.
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Old 04-05-2017, 09:20 AM   #10
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he's waiting for me to get one of the cams installed & see how the car likes it. will need springs/retainers first..
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Old 04-05-2017, 11:36 AM   #11
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he's waiting for me to get one of the cams installed & see how the car likes it. will need springs/retainers first..
What cam are you up to?
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Old 04-05-2017, 11:57 AM   #12
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Going enem c2 to try out the nastiest one next.
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Old 04-05-2017, 02:02 PM   #13
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Get some springs (stock can not get past 6500) about 40kg seat 110 at 12 mm, steel retainers - not titanium not aluminum, and check ENEM's products. This will get you up to 7500 rpm easily. Tested on my project.

Lift on a these heads can easily go up to 12,5mm but you don't need to do more.

I use ENEM K13 TURBO (280/280/113/115/12.5/12.5/1.8/1.2/0.40) for 400+ hp and idle is perfectly good while pulling like crazy..

You could even try ENEM K15 TURBO (292/292/111/115/12.5/12.5/2.6/2.0/ 0.40) for 500+ hp.

Note the cams refer to engine power not whp, so you need something targeted well over 400 hp to have a bit of tuning headroom !!
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Old 04-05-2017, 02:21 PM   #14
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Ipd cams are good and will get you to that power goal with the proper supporting mods
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Old 04-05-2017, 02:21 PM   #15
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Quote:
Originally Posted by Surfingbird View Post
What cam are you up to?
the car put down 330ish at 21 psi with an ipd cam. right now it's up to jack stands with no suspension under the front end ;)
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Old 04-05-2017, 02:38 PM   #16
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330 whp? 8 valve? headwork?

I think i'll go for something more aggressive than IPD's cam. I find that turbo cams are at bit more hard to come by than N/A ones, especially for a higher than normal revving engine. I need 7000rpms

Last edited by Surfingbird; 04-05-2017 at 02:50 PM..
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Old 04-05-2017, 03:10 PM   #17
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yeah that's the problem with the current setup, it starts to nose over hard at around 5500. I think it's got some headwork, but I don't know for sure.
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Old 04-05-2017, 05:32 PM   #18
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A k-cam will do 350+whp if you play around with an adjustable gear, and wakes up around 4000.
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Old 04-05-2017, 05:49 PM   #19
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A k-cam will do 350+whp if you play around with an adjustable gear, and wakes up around 4000.
Yeah i figured that H- and K cams might do it. But they are not exactly set up for turbo use, considering the overlap.
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Old 04-05-2017, 06:03 PM   #20
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Both in Norway and Sweden there are many examples of people in the 350-400whp range with k-cams, usually timed to about 2-2.5mm tdc. With a rather large turbo I wouldn't worry that much about the overlap

I'm actually thinking about putting a k cam in my b21et. It's got a v-cam now (straight up, not timed in any way). Seems fairly happy, but starts to fall off before my 7200rpm rev limit.

One big plus of the alphabet cams is that they are cheap, atleast in scandinavia
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Old 04-05-2017, 10:42 PM   #21
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H and K cams are fairly rare around here. I've used a K cam in a turbo app before, it was alright. I'll be honest though, there's not too many cams that I've fooled with on 8v cars where I really thought "****, that's an awesome cam". Some of that may be due to us not really putting huge turbos on 8v setups either. I'm optimistic about the C2, going to need bigger injectors I suspect to really let that one shine.
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Old 04-06-2017, 02:56 AM   #22
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I got offered a K-cam for 140$, but i worry about overlap because i do not know quite enough about camshaft tuning, it is actually rather complex! and i would like more lift also. Though i do not know how much lift i can run on stock setup.
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Old 04-06-2017, 03:02 AM   #23
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Quote:
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A k-cam will do 350+whp if you play around with an adjustable gear, and wakes up around 4000.
Question is if that is enough. I am currently working out a 531 head, and planning 29 psi+ in future.

But should be better than my VX cam anyway. Maybe i'll just grab one of them.
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Old 04-06-2017, 11:32 AM   #24
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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.
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Old 04-06-2017, 11:36 AM   #25
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Quote:
Originally Posted by Surfingbird View Post
Question is if that is enough. I am currently working out a 531 head, and planning 29 psi+ in future.

But should be better than my VX cam anyway. Maybe i'll just grab one of them.
doesn't hurt. you won't be able to do a whole lot about the overlap on a single cam setup, but you can adjust the cam gear as needed to kinda get the best effect
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