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Search found 3119 matches

by Stan Weiss
Fri Sep 30, 2022 9:47 am
Forum: Engine Tech
Topic: From a solid roller to hydraulic roller
Replies: 85
Views: 1565

Re: From a solid roller to hydraulic roller

I take it that the engine is still together and in the car with the SR cam. Have you tried loosening the intake and exhaust valve lash 0.005" and seeing if the shortened duration and less overlap makes any difference?

Stan
by Stan Weiss
Fri Sep 30, 2022 1:26 am
Forum: Engine Tech
Topic: From a solid roller to hydraulic roller
Replies: 85
Views: 1565

Re: From a solid roller to hydraulic roller

I have finally had enough with my 10:1 compression 540 solid roller on the street. Runs very good at WOT but not very streetable in the cruising rpm's, especially with the A/C on and cruising the freeway with my OD trans (at those low rpm's there just isn't any torque). My current SR is 286/296 - ....
by Stan Weiss
Thu Sep 29, 2022 2:03 pm
Forum: Engine Tech
Topic: From a solid roller to hydraulic roller
Replies: 85
Views: 1565

Re: From a solid roller to hydraulic roller

So, Mike, you're saying a street pump gas 632, it would be a bad idea to run a cam on a 99 degree lobe separation angle? I thought that would increase overlap and feed the cubes better. Isn't that the idea? That was a recommendation by a certain cam guru that A LOT of people follow. Obviously the a...
by Stan Weiss
Wed Sep 28, 2022 10:07 pm
Forum: Engine Tech
Topic: From a solid roller to hydraulic roller
Replies: 85
Views: 1565

Re: From a solid roller to hydraulic roller

I have finally had enough with my 10:1 compression 540 solid roller on the street. Runs very good at WOT but not very streetable in the cruising rpm's, especially with the A/C on and cruising the freeway with my OD trans (at those low rpm's there just isn't any torque). My current SR is 286/296 - ....
by Stan Weiss
Tue Sep 27, 2022 11:32 am
Forum: Engine Tech
Topic: Camshaft lobe design by Billy Godbold
Replies: 48
Views: 1770

Re: Camshaft lobe design by Billy Godbold

I think the Blair program tried to be an all in one program and does this as well. I suspect the GT packages to be beyond that. I wanted to buy the Blair software to see how well it works, but I was told it's no longer for sale. Mike, About 4 or 5 years ago I had a thread on here about trying to ge...
by Stan Weiss
Tue Sep 27, 2022 9:11 am
Forum: Engine Tech
Topic: Camshaft lobe design by Billy Godbold
Replies: 48
Views: 1770

Re: Camshaft lobe design by Billy Godbold

People think 4 valves are hard to improve and yet the same group of people are more than willing to change their cams. Comparing camshafts can be a bit more complicated than often assumed. Let's compare two camshaft angle area; that is to say the areas under their lift curves. Assume both are 3-4-5...
by Stan Weiss
Mon Sep 26, 2022 11:26 pm
Forum: Engine Tech
Topic: Camshaft lobe design by Billy Godbold
Replies: 48
Views: 1770

Re: Camshaft lobe design by Billy Godbold

Great explanation of lobe design ... at least I thought so https://www.youtube.com/watch?v=K1DFrWcvTuc The 0.050" duration people will not like it! :lol: 50 HP difference! :shock: Stan You could say the same about advertised duration guys... That is true. I do wish that when Billy was talking about...
by Stan Weiss
Mon Sep 26, 2022 1:15 pm
Forum: Engine Tech
Topic: Camshaft lobe design by Billy Godbold
Replies: 48
Views: 1770

Re: Camshaft lobe design by Billy Godbold

65-fastford wrote: Mon Sep 26, 2022 12:33 pm Great explanation of lobe design ... at least I thought so

https://www.youtube.com/watch?v=K1DFrWcvTuc
The 0.050" duration people will not like it! :lol: 50 HP difference! :shock:

Stan
by Stan Weiss
Sun Sep 25, 2022 8:48 pm
Forum: Engine Tech
Topic: Dyno test info
Replies: 21
Views: 1255

Re: Dyno test info

:roll: Note I don't own a dyno. Do You own a dyno? If so is it a Super Flow Dyno? If so open a SFD file where it shows the STPCor Factor as being great than 1.07. In most cases this will be a constant for the full pull. Now divide Cor Hp by UnCor HP for max Hp and how far off is this number from th...
by Stan Weiss
Sun Sep 25, 2022 4:24 pm
Forum: David Vizard forum
Topic: Cam Master
Replies: 13
Views: 2934

Re: Cam Master

Stan Weiss wrote: > > Hi Stan. > What's the latest with Cam Master? > > > Kevin, > I got busy with other things and it has not been worked on since the end of > Oct 2021. > > If anyone is interested here is a 14 day trial version. Any feedback gladly > welcome. > > cammaster_dayxxx_0_0_22_setup.zip...
by Stan Weiss
Sun Sep 25, 2022 2:54 pm
Forum: Engine Tech
Topic: Converting Manifold Vacuum Gauge to KPA Help
Replies: 8
Views: 292

Re: Converting Manifold Vacuum Gauge to KPA Help

Shawn,
I get 7.252 PSI for 50 kpa

I get 7.329 PSU for 15" of vaccum

Stan
by Stan Weiss
Sun Sep 25, 2022 11:25 am
Forum: Engine Tech
Topic: How much advance for a less than optimal cam ?
Replies: 22
Views: 697

Re: How much advance for a less than optimal cam ?

I think a great start would be to note your average cranking compression you have across 8 cylinders now and then get as close to that by messin with the new cam. I must say that if I did not have the bigger cam already and my valve springs could take it, I would just run higher ratio rockers which...
by Stan Weiss
Sun Sep 25, 2022 11:05 am
Forum: Engine Tech
Topic: How much advance for a less than optimal cam ?
Replies: 22
Views: 697

Re: How much advance for a less than optimal cam ?

I think a great start would be to note your average cranking compression you have across 8 cylinders now and then get as close to that by messin with the new cam. I must say that if I did not have the bigger cam already and my valve springs could take it, I would just run higher ratio rockers which...
by Stan Weiss
Sat Sep 24, 2022 2:05 pm
Forum: Engine Tech
Topic: Dyno test info
Replies: 21
Views: 1255

Re: Dyno test info

14% correction seems like a lot for that weather and altitude. Tuesday it was in the mid 80's very high humidity and baro in the toilet here, 1200 ish elevation, corrected 7% If you are using a Super Flow dyno. You do understand how ME% is used in correcting HP and not just weather data? Stan :roll...
by Stan Weiss
Sat Sep 24, 2022 12:49 pm
Forum: Engine Tech
Topic: Dyno test info
Replies: 21
Views: 1255

Re: Dyno test info

Bigchief632 wrote: Sat Sep 24, 2022 10:26 am 14% correction seems like a lot for that weather and altitude.
Tuesday it was in the mid 80's very high humidity and baro in the toilet here, 1200 ish elevation, corrected 7%
If you are using a Super Flow dyno. You do understand how ME% is used in correcting HP and not just weather data?

Stan