Roller Cams in Stock Eliminator?

[Terry Cain]

Originally Posted by Dick Butler

Anyone remember when National records were thrown out because stocker cam 2 or 3 degrees off?
Just Asking?

Yep

[Dan Fahey]

Originally Posted by Dick Butler

Anyone remember when National records were thrown out because stocker cam 2 or 3 degrees off?
Just Asking?

Yes..busted using MacElroy grind on a 350/255.
Few of everything out!
D

[impstocker]

In response to "build a newer car so you can run roller cam" I posted that question just to make sure before I spend $ on lifters, thats all. I am a low buck guy, will have 12K total in my 65 BBC Impala.

Not just newer cars with roller cam, I have all parts to build that 151 4 Cylinder for the 85 Camaro to run W/SA , that has roller cam plus FI.

Will L

[Alan Nyhus]

Would allowing roller cams/lifters in place of flat tappet cams/lifters save racers money? Yes. But is that where we want things to go? My personal opinion...no.That said, there are several areas where rules changes could be made in Stock that would save racers significant costs while still being reflective of the intention of the class. -Al

[Billy Nees]

Originally Posted by Alan Nyhus

Would allowing roller cams/lifters in place of flat tappet cams/lifters save racers money? Yes. -Al

Was the study on this done by the GAO?

[GarysZ24]

Originally Posted by james schaechter

I guess if you are looking for headers at a big box store, but why not make a set or have a set made? REF is in Arizona. Maybe they could make a set if you brought the car to them?

The last time I asked about headers from a place in Arizona, that place was in Kingman, and the guy told me that if I could leave my car with him for 2wks, and pay him $1,000 he could make a set for my car. $1,000???? That's an entry fee for two national events, and two divisionals! I also had this chat back in either 2007, or 2008, thus I'm sure they'd cost even more nowadays. Sorry James, but I can't justify spending that much for headers for a V6, when the "big box store" sells them for less than $300 for a V8! As long as my car is competitive against the index, so I can race with you guys, I'll keep my stock exhaust manifolds, unless or until I get a much better deal for headers. Moreover, I don't have the smarts or the tools (or even the facilities), to make headers myself. I'm .2-.3 under the index for DF/S everywhere I race, and that's plenty good for me. I have no desire to be number one qualifier anywhere I go, and am plenty good with not being one of the bottom three qualifiers either (or in the middle of the pack where those qualifiers have to race against one of the bottom three qualifiers too), since they have to be the first three pair out in first round.

Lol to the "Slacker" comment too Dan...I'd shake your hand for that one!!!!

[james schaechter]

Sorry, I took your question literally. I think I understand now.

Originally Posted by GarysZ24

The last time I asked about headers from a place in Arizona, that place was in Kingman, and the guy told me that if I could leave my car with him for 2wks, and pay him $1,000 he could make a set for my car. $1,000???? That's an entry fee for two national events, and two divisionals! I also had this chat back in either 2007, or 2008, thus I'm sure they'd cost even more nowadays. Sorry James, but I can't justify spending that much for headers for a V6, when the "big box store" sells them for less than $300 for a V8! As long as my car is competitive against the index, so I can race with you guys, I'll keep my stock exhaust manifolds, unless or until I get a much better deal for headers. Moreover, I don't have the smarts or the tools (or even the facilities), to make headers myself. I'm .2-.3 under the index for DF/S everywhere I race, and that's plenty good for me. I have no desire to be number one qualifier anywhere I go, and am plenty good with not being one of the bottom three qualifiers either (or in the middle of the pack where those qualifiers have to race against one of the bottom three qualifiers too), since they have to be the first three pair out in first round.

Lol to the "Slacker" comment too Dan...I'd shake your hand for that one!!!!

[Bernie Cunningham]

Dang, Nascar CUP cars, the big boys, have just recently switched to roller cams and lifters, imagine the beatings that the old flat tappet set up took and yet it stayed together.

Yeah, they also dropped the max RPM as well but before that you had an engine running non stop for hours at WOT at around 9K plus RPM. Very impressive indeed.

[Dan Fahey]

Going to Roller Cams.
The racers will have new geometry to play with.
More Spring, Duration and new level of breakage.

Roller Cams will yield higher rpm.
Leading to more and impressive dramatic catastrophic failure!

Need a spring limit rule to back off from limits of material science.

D

[Bernie Cunningham]

Originally Posted by Bernie Cunningham

Dang, Nascar CUP cars, the big boys, have just recently switched to roller cams and lifters, imagine the beatings that the old flat tappet set up took and yet it stayed together for decades.

Yeah, they also dropped the max RPM as well but before that you had an engine running non stop for hours at WOT at around 9K+ RPM. Very impressive indeed.

I would like to bring this back up as it's got to be relevant.
Does anybody know what the, before roller, spring pressures were on a Nascar CUP car?