runaground
Tracy, Ca.
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Joined: 09/04/2004
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404 Isky Roller. Now that's a cam.
Larry / Cathy Hawkins
Pace Arrow 37C W24
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RNunes
San Martin, CA
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Joined: 09/29/2006
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Its been awhile since I've overhauled an engine. Did some 283's and Ford flathead's way back when.....one thing that has my curiousity is
the comment about having the valve lifters held up while changing the camshaft. Is there really such a thing as that? You still have to remove the tappets, remove the push rods and get the lifters out don't you, or is there some magic tool now that can hold lifters up?
Can't be, say it isn't so...
BTW, camshafts only run backwards when you backing up right??? Ha Ha!
Bob and Sylvia Nunes
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SuperDave178
Tacoma, WA
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Joined: 06/21/2007
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runaground wrote:404 Isky Roller. Now that's a cam.
Any "roller" cam is pointless unless you're running at extremely HIGH RPM's. Same for gear drive timing gear sets.
RV engine are more likely to have "torque" cams that come on a lower RPM's.
Dave
Live every day as though it were your last; someday you'll be right.
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spreggin
SoCal
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Joined: 10/24/2007
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http://www.hendrickmotorsports.com/tech_engine_vr360.asp
here is a link to a typical Hendrick Motorsports engine.... if it were even possible to obtain 12-15k rpms in a Nascar racing engine.... let alone sustain it..... then these guys probably could do it.... but no.... you may have "crewed" for "somebody".... but I doubt it was a Nascar team....
must have been Formula 1....... lmao
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LeeShearer
Royersford, PA
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Joined: 01/25/2006
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SuperDave178 wrote:runaground wrote:404 Isky Roller. Now that's a cam.
Any "roller" cam is pointless unless you're running at extremely HIGH RPM's. Same for gear drive timing gear sets.
RV engine are more likely to have "torque" cams that come on a lower RPM's.
Dave
Then why did GM put a roller cam in my 7.4?
2005 Fleetwood Resort EXT 25SB
1999 Chevy K3500 short bed dually
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SuperDave178
Tacoma, WA
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runaground wrote:A 404 Isky Roller. Now that's a cam.
Any "roller" cam is pointless unless you're running at extremely HIGH RPM's. Same for gear drive timing gear sets.
RV engines are more likely to have "torque" cams that come on at lower RPM's.
Dave
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kaagee
Burlington Ontario
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Joined: 06/24/2005
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SuperDave178
Status: Senior Member
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No. of posts: 1,024 ( average posts per day: 6.48 ) View Posts | Notify Me of New Posts
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SuperDave178's Signature
Live every day as though it were your last; someday you'll be right.
---------------------------------------------------------------------
SUPER DAVE...
Over 1000 posts since June 2007!!!
I think it's time for you to find a different hobby..
Ken:
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spreggin
SoCal
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kaagee wrote:SuperDave178
Status: Senior Member
Currently: Online
Real name: N/A
Joined: 06/21/2007
RVing since: N/A
No. of posts: 1,024 ( average posts per day: 6.48 ) View Posts | Notify Me of New Posts
Location: Tacoma, WA
Website: N/A
SuperDave178's Signature
Live every day as though it were your last; someday you'll be right.
---------------------------------------------------------------------
SUPER DAVE...
Over 1000 posts since June 2007!!!
I think it's time for you to find a different hobby..
Ken:
some race team needs an engine tuner, one that appearantly knows how to turn 12-15 thousand rpms in a v8 STOCK car engine...
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runaground
Tracy, Ca.
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Joined: 09/04/2004
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SuperDave178 wrote:runaground wrote:A 404 Isky Roller. Now that's a cam.
Any "roller" cam is pointless unless you're running at extremely HIGH RPM's. Same for gear drive timing gear sets.
RV engines are more likely to have "torque" cams that come on at lower RPM's.
Dave
Sure made the 426 Hemi Roadrunner scream back in the day. That was MY first Recerational Vehicle 
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LeeShearer
Royersford, PA
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http://www.kodak.com/US/en/consumer/nascar/theCar.jhtml?id=0.1.4.5&lc=en
Superdave, I know this is old (2 years) but the specs show a redline of 9300 rpm. Quite a bit lower than your magical numbers.
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