and this is the ticket, you need to have some info and some goals. my motor was designed for high rpm power, im flowing just under 250cfm at .500 lift, i sent my flow data to integral and they recommended the R3/R1 combo for my application. my rpm goals were 9k

 

Although the catalog (on the website) does not show Mazda Miata, give them a call. Integralcams sold the profiles to them, look to spend 700 or so with core.

Megacycle Cams

I used to have a set from Integralcams, now I regret I got rid of them as the company IC went south.

(Note: see attachment)

 

you shouldnt need cores with them, mine are full billet cams, most beautiful cams i have ever seen, and i have looked at alot of aftermarket cams for other engines.

 

Every miata needs a set of Kelford 272's

 

Wow that is huge compared to any OTS cam offering. Do you run low cr pistons as well? I would think those cams would love ~10:1 cr + boost, or higher with e85.

 

i am about 9.5:1 i think. those kelfords sound super aggresive, what is the setup ?



this is a better video

 

Sounds sexy! Iirc the 1.6 idling in that video wasn't tuned properly yet, which is why it sounded so crazy.

That is a 1.6 with kelford 272s
- - Retail -.1mm In/Ex 1mm In/Ex In. Ex Centerline in/ex
T203-C $600.00 - 272 272 230 230 10.00mm 9.00mm 108 116

 

webcam is $691 for weld/regrind two camshafts.

Jesel is about $1500 each for a new tool steel cam.

 

The good thing about webcam is that they do rewelding so you can get the cam ground without changing the base circle. Also, read their disclaimer on the ordering policies page. That is the kind of business I like to give my business to.

And subbing because there is more miata cam information in this thread than any other one I've seen.

 

True that! cam info is relatively scarce.


I have a set of webcam 505 +2.5 cams that I am going to run in a jdm GTR motor but for my other motor, I picked up a bp4w head and would like something a little more aggressive.

Are there any aftermarket solutions for the VVT head?

 

I believe that is Fastcolt's old car.

I don't know the details, but those cams in a different car did this.

 

Mahura and Tomei have some but they are very pricey. IMO you would be best off talking to somewhere like Webcam and see if they can weld/grind them. I know Keegan engineering can do them as well. I bet the VVT cam prices are a bit more than standard though, but it should easily beat out Mahura's sky high prices. Plus, you could have the cam tailored to your specific wants and use.

Viperormiata- What member did that dyno come from? I would love to look more into those cams, that video sounds fantastic. I remember the owner of that car in the video wasn't too happy with them though and ended up selling them, and it was running rough which is probably why is sounds so lumpy. I have emailed kelford about them in the past, I'm very suspicious that they can actually be ran with the HLAs like they claim. Its a ton of duration and lift over stock, no other manufacturer claims such aggressive cams can be ran with the HLAs. I wonder if the 400whp+ dyno car was using solid shim unders?

 

here is my dyno graph, now keep in mind that i was running on a 14psi waste gate spring and it was creeping to 18psi. I had no boost controller holding the gate closed to the desired level was reached. but you can see that the cams i have pull all the way to 8k, i should have kept going to 9k but i reached my goal of 400hp and the weather was shitty so i called it a day. i think these cams have more in them.

 

Have you ever re-tuned it with a boost controller?

 

i added a ball and spring manual controller and brought it up to 20psi to get it off the spring, it helped out a little with spool. but my plans after i fix my drivetrain is get a aem tru boost on it and bring it back to the dyno, 25-27psi on race gas and 9000-9200 rpm. the cams are degreed in now, but i wanna play with the gears and try to dial out some overlap and build some more compression.

 

so what cam specs would be recommended for peak power at around 7k? +1mm valves, moderately ported... any other info needed?

 

the more lift the better, lift will not really effect the powerband, turbos like lift so if you can afford to do shim under bucket, get something in the .400's (high 11-12mm) duration i would run something in the 270's advertised. the idle shouldnt be bad and have a bit of lump

 

The head that is on the car at the minute had some slight damage in the past so i am going to build another head to replace it re-use the uprated valves, springs etc. May as well go shim under bucket whilst i am at it.

is there anywhere i can get cams like that off the shelf?

 

well it doesnt look like there are to many off the shelf people, integral was the best but is gone now, i would still call megacycle and see if they can do something for you.

but here are your options

megacycle
keegan
web
toda
maruha
tomei

fuji racing ?

 

Sounds gay, I'll stick with stock.

I was all excited by spending money on cams, a built head and other stuff. But then I dyno'ed 400whp and stopped caring.