Speed-Talk is running on www.Speed-Talk.com

IMPORTANT: Update your bookmarks to https://www.speed-talk.com/forum/
(Right-click the URL and select "Bookmark this link")

Search found 8434 matches

by CamKing
Sat Feb 04, 2023 2:51 pm
Forum: Engine Tech
Topic: Power doesn't matter, valve springs ?
Replies: 24
Views: 598

Re: Power doesn't matter, valve springs ?

1980RS wrote: Sat Feb 04, 2023 2:38 pm
Is your cheater cam a flat tappet or a roller cam?
The ones we make for the 602 Crate engines are hydraulic flat tappet.
The ones we make for the 604 Crate engines are hydraulic rollers.
by CamKing
Sat Feb 04, 2023 2:17 pm
Forum: Engine Tech
Topic: Power doesn't matter, valve springs ?
Replies: 24
Views: 598

Re: Power doesn't matter, valve springs ?

EDC wrote: Sat Feb 04, 2023 9:10 am A quick note....

Maybe the PAC Racing 1201???

/awaiting the wrath of the elders. :lol:
That's too much spring for the mechanical flat tappet race cams we make, that turn 7,600rpm.
by CamKing
Sat Feb 04, 2023 2:07 pm
Forum: Engine Tech
Topic: Power doesn't matter, valve springs ?
Replies: 24
Views: 598

Re: Power doesn't matter, valve springs ?

Hi, Mike, I trust your recommendations, so trying to learn something here. I've been going to beehives whenever possible and have usually found about another 300-500 RPM over same seat pressure cylindrical. Why would we choose the old school cylindrical over the beehive? The GM cam he's running is ...
by CamKing
Thu Feb 02, 2023 1:31 pm
Forum: Engine Tech
Topic: cam duration
Replies: 17
Views: 1698

Re: cam duration

rumpity_z28 wrote: Thu Feb 02, 2023 12:37 pm
CamKing wrote: Mon Jan 09, 2023 10:18 am I would not go over an intake duration of 228@.050"
Hey Mike do you make a cam that you would recommend?
We can make you something, but I need more info.
When you have time, fill this out, and submit it.
http://jonescams.com/street-performance/
by CamKing
Thu Feb 02, 2023 10:40 am
Forum: Engine Tech
Topic: Camshaft question - guys with 6-71 blower experience
Replies: 6
Views: 268

Re: Camshaft question - guys with 6-71 blower experience

Like said above, the 6-71 will come in right away, and hold the boost, so you want to run a bigger cam, to make the engine more efficient at the higher RPM's The larger duration will make it less efficient at low RPM's, but because it gets up on boost so quick, you won't notice.
by CamKing
Thu Feb 02, 2023 10:32 am
Forum: Engine Tech
Topic: Cam gurus, I need advice
Replies: 64
Views: 2730

Re: Cam gurus, I need advice

smokie wrote: Wed Feb 01, 2023 9:07 pm
But would they be ok with your cam you recommended?
I wouldn't run them with the cam I recommended.
by CamKing
Thu Feb 02, 2023 10:28 am
Forum: Engine Tech
Topic: Cam gurus, I need advice
Replies: 64
Views: 2730

Re: Cam gurus, I need advice

EDC wrote: Thu Feb 02, 2023 6:58 am
CamKing wrote: Wed Feb 01, 2023 5:38 pm
EDC wrote: Wed Feb 01, 2023 3:29 pm

Roxboro, North Carolina is now in Mexico?
Did they move production out of Mexico, or just assembly ?
When ?
From start to finish... about ten years ago...
Thanks for the info.
I stand corrected.
by CamKing
Wed Feb 01, 2023 5:38 pm
Forum: Engine Tech
Topic: Cam gurus, I need advice
Replies: 64
Views: 2730

Re: Cam gurus, I need advice

My lifters are Lunati, I think they are the street hydraulic roller lifters. Those are the Morel Street Performance lifters, and are made in Mexico. They're fine with a mild hydr roller profile with moderate spring pressures. I would not run them in any aggressive lobe profiles, or with heavy sprin...
by CamKing
Wed Feb 01, 2023 11:43 am
Forum: Forum Help / Questions / Tips
Topic: Many thanks for taking out the trash, Mike!
Replies: 3
Views: 116

Re: Many thanks for taking out the trash, Mike!

You're welcome. I went out of town for the extended weekend, and when I got in to work yesterday, I was surprised to see Speed-Talk had turned into an "adults Only" site. :lol: In 4 days, the spammers had created about 300+ user accounts on Speed-Talk. Most were left inactive, for them to use later....
by CamKing
Wed Feb 01, 2023 11:32 am
Forum: Engine Tech
Topic: Cam gurus, I need advice
Replies: 64
Views: 2730

Re: Cam gurus, I need advice

Curious Mike. Other than Johnson, who carries a US made roller lifter? Something that would take an aggressive profile and/or provide reasonable service life. Nothing spicy. 7k max. Maybe something along the lines of your EHR .360" lobes. There's a few companies making private label HR lifters in t...
by CamKing
Wed Feb 01, 2023 11:25 am
Forum: Engine Tech
Topic: Cam gurus, I need advice
Replies: 64
Views: 2730

Re: Cam gurus, I need advice

How long have they been made in Mexico? This set is about 7-8 years old, I just never used them until now. Are they suited for the cam I have or do I need to go with something else? Their Street Series has always been made in Mexico. That's why they're half the price of the normal Morel HR lifters....
by CamKing
Wed Feb 01, 2023 10:37 am
Forum: Engine Tech
Topic: Cam gurus, I need advice
Replies: 64
Views: 2730

Re: Cam gurus, I need advice

My lifters are Lunati, I think they are the street hydraulic roller lifters. Those are the Morel Street Performance lifters, and are made in Mexico. They're fine with a mild hydr roller profile with moderate spring pressures. I would not run them in any aggressive lobe profiles, or with heavy sprin...
by CamKing
Fri Jan 27, 2023 4:45 pm
Forum: Engine Tech
Topic: A game changer in the flat tappet world ?
Replies: 23
Views: 1836

Re: A game changer in the flat tappet world ?

Since no one has any real data on these, I'm going to lock this thread, until someone actually runs them.
It's not a "Game changer" until they're proven to work.
Right now, they're just a sales pitch.
by CamKing
Fri Jan 27, 2023 2:07 pm
Forum: General Tech
Topic: pmo consulting
Replies: 1
Views: 252

Re: pmo consulting

Do not comment on a spammers post, just report it.
When you comment on it, the thread remains after I erase the spammer.