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Search found 2736 matches

by Stan Weiss
Tue Nov 12, 2019 11:51 pm
Forum: Engine Tech
Topic: Rocker stud angle.
Replies: 15
Views: 615

Re: Rocker stud angle.

Steve,
Any update?

Stan
by Stan Weiss
Tue Nov 05, 2019 10:22 am
Forum: Engine Tech
Topic: Senate Bill on Racing
Replies: 30
Views: 1737

Re: Senate Bill on Racing

.that's for clarifying where you've decide to take the forum. I decided to make sure Speed-Talk is the #1 Performance and Racing tech forum. Supporting the Industry is a big part of that. It's not political. It's business Would not this thread then better service that purpose if it was in the Gener...
by Stan Weiss
Mon Nov 04, 2019 11:48 am
Forum: Engine Tech
Topic: Rocker stud angle.
Replies: 15
Views: 615

Re: Rocker stud angle.

Steve,
Do you have any lash caps you could try?

Stan
by Stan Weiss
Mon Nov 04, 2019 10:39 am
Forum: Engine Tech
Topic: Rocker stud angle.
Replies: 15
Views: 615

Re: Rocker stud angle.

Steve,
If you change the push rod length to get the 1.8:1 to work what doe the sweep look like?

Stan
by Stan Weiss
Mon Nov 04, 2019 10:00 am
Forum: Engine Tech
Topic: Rocker stud angle.
Replies: 15
Views: 615

Re: Rocker stud angle.

Are you using the same push rod?

Stan
by Stan Weiss
Thu Oct 24, 2019 1:11 am
Forum: Engine Tech
Topic: "symmetrical" head description?
Replies: 10
Views: 671

Re: "symmetrical" head description?

Why are heads with the valve layout IEIEIEIE called symmetrical? That word is for something that is mirror image about a centre line. The only heads I can think of that would qualify for that description are early Holden 253 / 308 CID that are IEIEEIEI. For me examples of Mirror would be EIIEEIIE o...
by Stan Weiss
Mon Oct 21, 2019 11:18 am
Forum: Engine Tech
Topic: Bore, Stroke, and block strength
Replies: 42
Views: 1256

Re: Bore, Stroke, and block strength

While the bore, stroke, and rod length are different the two combinations do have the same rod stroke ratio. This graph shows the turn force.

Stan
ab-tf-400.gif
by Stan Weiss
Mon Oct 21, 2019 11:05 am
Forum: Engine Tech
Topic: Bore, Stroke, and block strength
Replies: 42
Views: 1256

Re: Bore, Stroke, and block strength

Two 400 ci engines everything the same but bore, stroke and rod length. Look at the difference in pressure by the piston ATDC.

Stan
ab-pp-400.gif
by Stan Weiss
Tue Oct 08, 2019 2:18 pm
Forum: Engine Tech
Topic: Roller lifter side load: pushrod angle vs offset pushrod seat
Replies: 5
Views: 387

Re: Roller lifter side load: pushrod angle vs offset pushrod seat

Maybe Mike has a simplistic answer I have never found one.

Stan
ab-pressure-angle-chb1.gif
ab-pressure-angle-chb2.gif
by Stan Weiss
Mon Oct 07, 2019 7:40 pm
Forum: Engine Tech
Topic: Why does 400" always win the EMC?
Replies: 29
Views: 2660

Re: Why does 400" always win the EMC?

Jack, Might want to talk with Mummert who is a member here. His 289 sbf came in second place and not where out of first. 390 FE (400") 2,511 289" (296") 2,504 427" BBC (429") 2,448 ( Jon Kaase) 404" BBC 2,412 Stan Dyno sheet from testing https://i1043.photobucket.com/albums/b436/Sleepercp89/289%20be...
by Stan Weiss
Mon Oct 07, 2019 9:40 am
Forum: Engine Tech
Topic: Camshaft duration vs valve events vs RPM
Replies: 27
Views: 1754

Re: Camshaft duration vs valve events vs RPM

What is your weight, et and mph?

► 1100 - 700 = 400 - if greater than 700 this will be less than 400

► 350 / 50 = 7

► 65 * 7 = 455 HP

► 70 * 7 = 490 HP

► (400 / 350) * 50 = 57.14 HP per 50 shoot

Need to work on your math, Has your nitrous system been flowed?

Stan
by Stan Weiss
Tue Oct 01, 2019 11:06 am
Forum: Engine Tech
Topic: Question for Warp Speed
Replies: 14
Views: 1339

Re: Question for Warp Speed

John Wallace wrote:
Tue Oct 01, 2019 6:54 am
Then you sell them to the Sportsman racer?

:?:
John,
I know 4 m sounds like a high number. But 4m @ 7000 RPM is less than 10 hours. GM when they test their 572 ci I believe tests for 50 hours and everything still needs to be in specs on inspection after the test.

Stan
by Stan Weiss
Sun Sep 29, 2019 11:47 pm
Forum: Engine Tech
Topic: Trying to turn exhaust flow numbers into something meaningful
Replies: 6
Views: 560

Re: Trying to turn exhaust flow numbers into something meaningful

With the way most people flow an intake port are we not really just seeing the difference in efficiency between their radius entry and the intake manifold?

Stan
by Stan Weiss
Sun Sep 29, 2019 9:07 am
Forum: Engine Tech
Topic: Stage #2 289 FORD heads(DONT MOVE MIKE)
Replies: 17
Views: 980

Re: Stage #2 289 FORD heads(DONT MOVE MIKE)

Stan Weiss wrote:
Sat Sep 28, 2019 10:55 pm

Phil,
What is the intake port cc's for the ported head? Intake Velocity seems high to me.

Stan
Phil,
Actually I got my colors mixed up. I was asking about the exhaust. Red line.

Stan
by Stan Weiss
Sat Sep 28, 2019 10:55 pm
Forum: Engine Tech
Topic: Stage #2 289 FORD heads(DONT MOVE MIKE)
Replies: 17
Views: 980

Re: Stage #2 289 FORD heads(DONT MOVE MIKE)

Mike, This is my post – please don’t move it to DV’s section I’d really like to get talking about this stuff. With everything going on I have sort of lost where I am. First take a look at the finished stage 2 (SEATS CUT) 289 chamber photo below. I think I am getting the hang of this iron porting( A...