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PostPosted: Thu May 24, 2007 5:55 pm 
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Supercharged
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Joined: Mon Jan 15, 2007 5:05 pm
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Location: Black Diamond, WA
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Gents,

Does anyone have experience testing tall cams with a stock SL6 904 torque converter?
How tall a lift can you go with a solid lifter, and still have short enough duration and overlap to run the stock 904 (1780 rpm) converter?

What are the cam specs and who makes the cam?

I am running the stock 1974 cam that has been reground to 254D and .435 lift.
This one works pretty good, but how high can I go?
I am looking for more torque, not rpm horsepower.
My cruising rpms are between 2000 and 2600 rpm.
I never go over 3000 rpm.

Thanks!

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG


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 Post subject: cam
PostPosted: Thu May 24, 2007 7:09 pm 
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Turbo EFI

Joined: Tue May 17, 2005 4:26 pm
Posts: 1237
Location: CBS Newfoundland Canada
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i know the mopar 276/.490lift with high gearing doesn't work to will ,it has a small hole on hard take off


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PostPosted: Fri May 25, 2007 4:23 am 
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TBI Slant 6

Joined: Sat Feb 04, 2006 11:13 pm
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Location: Chesapeake Beach, Md.
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That stock converter seems to have almost no stall above idle. It feels right for the stock engine and 550 rpm idle. I don't know how you cammers live with it unless you are using some pretty steep gears out back and holding the brake at the stop lights.

Seems as though most of the aftermarket world has left us in the lurch. You know .... available for 273, 318, 340 ......

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PostPosted: Fri May 25, 2007 8:46 am 
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Guru
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Joined: Mon Oct 14, 2002 4:32 pm
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Location: Working in Silicon Valley, USA
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Pat Dawson wrote:
That stock converter seems to have almost no stall above idle. It feels right for the stock engine and 550 rpm idle. I don't know how you cammers live with it unless you are using some pretty steep gears out back and holding the brake at the stop lights.

Seems as though most of the aftermarket world has left us in the lurch. You know .... available for 273, 318, 340 ......


This is exactly the issue, the SL6 needs a completly different profile and cam "lay-out" to make use of the long stroke and the longer "blowdown" cycle of a 120 degree in-line six.

The two "dual pattern" profiles cams i recently work-out with Erson do a good job in this "gap" area, between a stock (factory engineered) cam and the aftermarket's V8 thinking on a SL6 camshaft mindset.

Go look at the Erson Gorp Buy message thread for the part numbers and profile sheets.
DD


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PostPosted: Fri May 25, 2007 8:29 pm 
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EFI Slant 6
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Joined: Sat Oct 07, 2006 10:29 am
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Location: Tennessee
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I think Doc described the Erson "deal" very well, and for now it really is the cheapest/most up-to-date cam you can get.
On a side note, I have a Schneider 264 Adv. Dur./.224 @ .050/ with .480 lift. And I wouldn't want any bigger with my stock converter and 2.76 gears. Massive torque(over stock), and idles well.(Some may think it's too choppy)

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225 Cubic Inches of Iron-Head American Muscle

225 bored .040 /.100 off block, Schneider Cam 224@.050~ .480 lift - Stock valves, blended bowls, Offenhauser intake with 500 Edelbrock carb


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PostPosted: Sat May 26, 2007 11:46 am 
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Supercharged
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Joined: Mon Jan 15, 2007 5:05 pm
Posts: 3767
Location: Black Diamond, WA
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Would the Schneider cam produce more torque?
It looks like it is very short duration with lots of lift?
Are they still available? If so, where?
What kind of mileage do you get?
I don't mind a choppy idle as long as I can get more torque.
My rpms stay between 2000 and 2600 90% of the time.

Thanks,

_________________
Aggressive Ted



http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger





74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG


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PostPosted: Sat May 26, 2007 12:10 pm 
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Turbo Slant 6
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Joined: Sun Apr 09, 2006 6:08 pm
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Location: Comfrey MN
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Ted, try http://www.flatlanderracing.com/schcamschry170.html

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PostPosted: Sat May 26, 2007 12:25 pm 
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Supercharged
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Joined: Mon Jan 15, 2007 5:05 pm
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Location: Black Diamond, WA
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Very nice profiles, thank you!

I wonder how Doc's RV15 compares with the Schneider 264 for torque?

_________________
Aggressive Ted



http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger





74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG


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 Post subject:
PostPosted: Mon May 28, 2007 8:29 pm 
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EFI Slant 6
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Joined: Sat Oct 07, 2006 10:29 am
Posts: 344
Location: Tennessee
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Ted, I sent you a PM.

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225 Cubic Inches of Iron-Head American Muscle



225 bored .040 /.100 off block, Schneider Cam 224@.050~ .480 lift - Stock valves, blended bowls, Offenhauser intake with 500 Edelbrock carb


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