| [ Total Views: 3153 | Total Replies: 16 | Thread Id: 80499 ] |
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 drgouk
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| posted on November 27th, 2009 at 04:24 PM |
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Roller cam advice
Hi Guys,
Any recomendations of what size cam I should put in my multi use, 2789cc pauter motor? 9.5:1 Compression, 1.4 Rockers.Don'nt want to go to
radical, Since im only using a 4 speed.
The car will be used on the street and at the strip. The car will have a bus box with a 4.57 or one of the new 4.13 r/pinions with a .89 4th.
Please let me know of your experiences.
David Gouk
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on November 28th, 2009 at 11:11 AM |
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Hi Dave,
I can't give you any specifics on street roller cams,
but I can say
with the extra "area under the lift curve" that roller cams have,
you can easily cut 20 degrees from the duration at .050",
when compared to the same duration flat tappet you would have otherwise chosen.
My current one has 265 @ .050, and with my heads, it peaks at around 7800,
but does not lay over at all when driving it, all the way to the 8400 limiter.
My first instincts say go for something with mid 250's at .050",
but that all depends on the rest of the engine combo, as you well know.
| Quote: | Originally
posted by westi
That's mad Alan.
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drgouk
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| posted on November 28th, 2009 at 08:06 PM |
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Hi Dave,
Thanks for your thoughts. Is your Cam a Pauter Cam? If so, do you know the grind number?
Reading your posts, I see that you have had alot larger cams in your motor, Does it make more bottom end with the smaller cam without to much losted
at the top?
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on November 29th, 2009 at 04:24 AM |
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Hi David,
Current cam is a grind from SURECAM here in Australia.
it has 265 inlet and 270 exhaust with 106 lobe centres.
It has much more own low than other combos
but to be fair, it is a differeent comp ratio and heads than my other engine.
The other engine originally had a Pauter B325 cam, and had very little down low by comparison,
and always bogged the start line before using the 2-step at a minimum of 7300.
It had 285@50 from memory and 110 LC, ..perhaps if I was aiming for more rpm than my current 8400 limit is would have worked better.
..or perhaps a closer LC...i really like the 106 number.
I changed to a Sacchetti cam that has 276/277@50(108lc)
and it was faster in the car, and made more mph through the traps.
It was better at lower rpm .
I reckon some thing around 270 would have been about right for my requirements.
New heads will probably get the 265/270 cam but with the 1.7 rockers to bump up the lift.
| Quote: | Originally
posted by westi
That's mad Alan.
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20bkombi
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| posted on November 29th, 2009 at 06:31 PM |
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Thanks for sharing Your specs Dave, verry interesting.
AARON'S SPEED SHIFT AUTOS
Specialising in Vw automatic transmissions, differentials and torque converters
Stock or modified to suit your application (street, drag, off road)
Ph 0402 233 027
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drgouk
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| posted on November 29th, 2009 at 07:05 PM |
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Thanks Dave, Will let you know on what I decide on.
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Craig Torrens
A.k.a.: Craig Torrens
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| posted on November 29th, 2009 at 09:16 PM |
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| Quote: | Originally
posted by 20bkombi
Thanks for sharing Your specs Dave, verry interesting.
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thats if you believe it 
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on November 30th, 2009 at 05:13 AM |
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That is exactly what I have.
Anything else you want to know?
| Quote: | Originally
posted by westi
That's mad Alan.
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 vw54
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Always Waiting 4 Friday
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| posted on November 30th, 2009 at 06:50 AM |
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just ask TT he will tell u
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vassy66T1
A.k.a.: Marcus Vass
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| posted on November 30th, 2009 at 08:16 AM |
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Db is a stand up guy 
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Craig Torrens
A.k.a.: Craig Torrens
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| posted on November 30th, 2009 at 09:16 AM |
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| Quote: | Originally
posted by dangerous
That is exactly what I have.
Anything else you want to know?
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The secret muffin recipe
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on November 30th, 2009 at 11:29 AM |
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Peheat oven to 150 c
Mix:
cup sugar
3 eggs
1/2 cup macamadamia oil,
pinch salt
tspn cinnamon
mix
1.5 cups self raising flour
mix
grated rind, and juice of one orange
2 grated carrots,
cup crushed macamadamia nuts
cup of whole ones
a bag of sunsol breakfast mix,
and what ever the hell else you like in a muffin.
(I knew a guy who put in mashed potato!!)
Cook for about an hour or more if you like crunchy tops.
| Quote: | Originally
posted by westi
That's mad Alan.
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vassy66T1
A.k.a.: Marcus Vass
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Wow ... are U reading this?
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| posted on December 1st, 2009 at 03:27 PM |
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I am going to cook some of these before the week is out.
thanks Muffin Man 
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drgouk
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| posted on January 9th, 2010 at 04:13 PM |
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After some thought over a muffin, I decided to go with Don Pauter's advice on the cam, Much along the lines of Dave's advice.
A Pauter vn119, 258degrees duration at .050"
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dangerous
A.k.a.: Dave Butler Muffin Man
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| posted on November 10th, 2012 at 10:51 AM |
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| Quote: | Originally
posted by Craig Torrens
| Quote: | Originally
posted by 20bkombi
Thanks for sharing Your specs Dave, verry interesting.
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thats if you believe it
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I have no secrets.
http://www.youtube.com/watch?v=SkVRCneHW6k
| Quote: | Originally
posted by westi
That's mad Alan.
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westi
Custom Title Time!
what the
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| posted on November 10th, 2012 at 12:29 PM |
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that'sfunny shit.
down sharon.
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colin
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| posted on November 10th, 2012 at 03:52 PM |
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That is sensational
Cheers Col
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