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290/0.495" Vs 300/0.560" Cam


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#1 turbogrill

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Posted 15 February 2017 - 11:49 AM

Hi,

 

I am building a mild race/ hot street engine. I am having difficulties deciding on what cam to get. 

 

Have anyone tried the Schneider 290f (290/0.495") or the 300f (300/0.560") cam?

 

It's for an endurance race car, so it doesn't have to be streetable. Reliability is of more concern than top performance.

 

Also want to keep the shift light at about 6000-65000, it can be totally dead under 3500 RPM.

 

So far my specs are:

- N47 head on F54 block flat top pistons

- Megasquirt

- Head work (either DIY or professional)

- MSA Headers

- Some exhaust and loud muffler

 

 

Car is fast in the corners but those damn E36 and Mustangs keeps passing me in the straigts! That needs to change....

 

My first post. Seems like a great forum.

 

(Live in US, but I have been in Australia and New Zealand. Awesome places!)

 

Also any preference of Isky vs Schneider regrinds?

 


#2 gav240z

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Posted 15 February 2017 - 12:37 PM

We had a camshaft specialist join recently.
http://www.viczcar.c...-240zg-replica/

I would be asking him about camshaft profiles based on what you want to achieve.
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#3 Lurch ™

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Posted 15 February 2017 - 12:48 PM

What's your induction system? Throttle bodies?


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#4 turbogrill

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Posted 15 February 2017 - 03:08 PM

We had a camshaft specialist join recently.
http://www.viczcar.c...-240zg-replica/

I would be asking him about camshaft profiles based on what you want to achieve.


Whitley is awesome. Gave me some great advice, his suggestion was going with a high lift.

What's your induction system? Throttle bodies?


I am running stock EFI intake. Might try and fab something or buy an aftermarket intake if I can afford it.

#5 dat2kman

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Posted 15 February 2017 - 04:07 PM

Are those duration figures advertised or at 50 thou valve lift?
Will need to stipulate that.

#6 260DET

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Posted 15 February 2017 - 04:30 PM

As a general observation I don't think that many here use US cams in their L engines, there is a good reason for that.


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#7 turbogrill

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Posted 16 February 2017 - 12:09 AM

Are those duration figures advertised or at 50 thou valve lift?
Will need to stipulate that.


Good point.
It's advised.

290-f:
Adv duration: 290
Duration at 50thou: 244
Max lift: 495
Lobe separation: 106

300-f:
Adv duration: 300
Duration at 50thou: 256
Max lift: .560"
Lobe separation: 106

As a general observation I don't think that many here use US cams in their L engines, there is a good reason for that.


Interesting. Why is that? Quality of new grinds or design of the camshafts?
I know it's always recommended to send in Nissan OEM for regrinds.

#8 260DET

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Posted 16 February 2017 - 06:56 AM

......................................

Interesting. Why is that? Quality of new grinds or design of the camshafts?
I know it's always recommended to send in Nissan OEM for regrinds.

 

 

There are a couple of L engine builders in Australia who are probably the  best in the world so all the components are highly developed and have a lot of experience behind them.






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