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Search found 8278 matches

by CamKing
Thu Aug 18, 2022 10:30 am
Forum: Engine Tech
Topic: Gm oe steel cam regrind limits.
Replies: 19
Views: 1037

Re: Gm oe steel cam regrind limits.

On my street car I laid down 231hp at the rear wheels with the L-31 cam which I though was pretty respectable. Later I replaced it with the LT4 Hot Cam, it was like I put a 125hp bottle on the 350 engine. Yea, and the hot cam is a POS, compared to anything designed this century. We have a few circl...
by CamKing
Thu Aug 18, 2022 10:29 am
Forum: Engine Tech
Topic: Gm oe steel cam regrind limits.
Replies: 19
Views: 1037

Re: Gm oe steel cam regrind limits.

On my street car I laid down 231hp at the rear wheels with the L-31 cam which I though was pretty respectable. Later I replaced it with the LT4 Hot Cam, it was like I put a 125hp bottle on the 350 engine. Yea, and the hot cam is a POS, compared to anything designed this century. We have a few circl...
by CamKing
Wed Aug 17, 2022 9:56 am
Forum: Engine Tech
Topic: Gm oe steel cam regrind limits.
Replies: 19
Views: 1037

Re: Gm oe steel cam regrind limits.

On my street car I laid down 231hp at the rear wheels with the L-31 cam which I though was pretty respectable. Later I replaced it with the LT4 Hot Cam, it was like I put a 125hp bottle on the 350 engine. Yea, and the hot cam is a POS, compared to anything designed this century. We have a few circl...
by CamKing
Tue Aug 16, 2022 10:52 am
Forum: Engine Tech
Topic: Gm oe steel cam regrind limits.
Replies: 19
Views: 1037

Re: Gm oe steel cam regrind limits.

It's cam core specific. Each cam core part# is roughed in to a given lift, duration, and LSA, then heat treated a given depth. Some have a very deap heat treat, some do not. The GM O.E. cam cores, I'm very familiar with, so I know how much they can be changed. Curious Mike, can the same be said for...
by CamKing
Mon Aug 15, 2022 1:43 pm
Forum: Engine Tech
Topic: Cam Core Ident
Replies: 3
Views: 197

Re: Cam Core Ident

part#
by CamKing
Fri Aug 12, 2022 2:38 pm
Forum: Engine Tech
Topic: Can you make 600hp with iron vortec heads?
Replies: 17
Views: 939

Re: Can you make 600hp with iron vortec heads?

Fully ported, with big valves, and high compression would make 600hp
by CamKing
Fri Aug 12, 2022 10:17 am
Forum: Engine Tech
Topic: New type Engine Rev Limiter
Replies: 10
Views: 653

Re: New type Engine Rev Limiter

mag2555 wrote: Wed Aug 10, 2022 6:47 am Do you folks know how bad the added loading of a crank is when a rev limiter system is employed that drops out cylinders!
It was so bad on the Indy IRL engines, it caused valve float/bounce. They had to add a soft limiter to keep the engine from hitting the mandated hard limiter.
by CamKing
Wed Aug 10, 2022 3:30 pm
Forum: Engine Tech
Topic: If going to Methanol, do I need to raise the CFM as well?
Replies: 12
Views: 558

Re: If going to Methanol, do I need to raise the CFM as well?

No need to go bigger on carb, or ports.
When you switch to Methanol, it will lower the temp of the intake charge thru the carb, manifold and ports. The cooler charge will increase the air density, which more then makes up for the area lost to the added fuel.
by CamKing
Wed Aug 10, 2022 10:20 am
Forum: Engine Tech
Topic: Question for anyone running one of my Hydr Roller cams
Replies: 15
Views: 2046

Re: Question for anyone running one of my Hydr Roller cams

DCal wrote: Tue Aug 09, 2022 3:39 pm Sbc 401 cid
10.48:1
233/236 @.050, .583/.562 lift 109 cl in at 105
554 @ 6150, 531 tq @4900
What heads ?
by CamKing
Wed Aug 10, 2022 10:17 am
Forum: Engine Tech
Topic: Marine Reverse rotation roller cam swap
Replies: 3
Views: 391

Re: Marine Reverse rotation roller cam swap

I can not find anyone that makes an HR cam core for that.
We can get the flat tappet cores.
by CamKing
Tue Aug 09, 2022 2:24 pm
Forum: Engine Tech
Topic: Question for anyone running one of my Hydr Roller cams
Replies: 15
Views: 2046

Question for anyone running one of my Hydr Roller cams

If you have run one of my hydr roller cams, and have had your engine on a dyno(chassis or engine), can you please list;
Engine make and CID:
Compression:
Cam specs or part#:
Max HP and RPM:
Max Torque and RPM:

I'm working on some new software.
Thanks in advance.
by CamKing
Thu Aug 04, 2022 2:47 pm
Forum: Engine Tech
Topic: Longevity of flat plane crank engine?
Replies: 19
Views: 948

Re: Longevity of flat plane crank engine?

A successful 180°, V8 engine, was designed over 80 years ago, the Novi. It ran at Indy, for 23 years, with only three engine related failures. Magneto, one broken crank and one piston. Excellent record, I would say. It was a 181 CID engine, three main bearings, with a large centrifugal, crank drive...
by CamKing
Wed Aug 03, 2022 12:53 pm
Forum: Jones Cam Designs
Topic: Direct Injection pump lobe design
Replies: 0
Views: 83

Direct Injection pump lobe design

We now offer profile analysis, design, and grinding for Direct Injection fuel pump lobes/cams.
Whether it's a prototype engine project, or you just need the pump to handle the increased demand for fuel, we can help
If you have a project you need help with, give us a call, or send us an email.
by CamKing
Tue Aug 02, 2022 1:04 pm
Forum: Engine Tech
Topic: Questions about ports that stall, and cam lift.
Replies: 32
Views: 1110

Re: Questions about ports that stall, and cam lift.

I'm seeing about a 3% drop from .500" to .600" (254 to 246) . It does rebound approaching .700" though but that's far and beyond the .575" target suggested. Might not be worth thinking about. Thanks. Is this a stock GM head by chance? This is something we run into with classes that have to run stoc...
by CamKing
Tue Aug 02, 2022 12:07 pm
Forum: Engine Tech
Topic: Questions about ports that stall, and cam lift.
Replies: 32
Views: 1110

Re: Questions about ports that stall, and cam lift.

Since the flow levels out, and does not go backwards, there's no turbulence. Having said that then does this mean that if flow decreases with added lift then the port is turbulent? And other than revisiting the intake porting job, what does that mean for maximum lift? Keep it at peak flow and no fu...