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by redliner
Mon Jun 17, 2019 3:48 pm
Forum: Engine Tech
Topic: high ratio rockers on sbc
Replies: 18
Views: 2706

Re: high ratio rockers on sbc

redliner wrote: ↑Mon Jun 17, 2019 3:46 pm
CamKing wrote: ↑Mon Jun 17, 2019 1:11 pm
RevTheory wrote: ↑Mon Jun 17, 2019 12:27 pm Sounds like a delicate balance of side load and plunger stress.
Or just switch to mechanical rollers, and stop screwing around.
INDEED!!! We all know what BIG JOE called those cams!!! R.I.P. BIG JOE!!!! HAPPY FATHERS DAY!!! YOU ARE MISSED!!!!
by redliner
Mon Jun 17, 2019 3:46 pm
Forum: Engine Tech
Topic: high ratio rockers on sbc
Replies: 18
Views: 2706

Re: high ratio rockers on sbc

CamKing wrote: ↑Mon Jun 17, 2019 1:11 pm
RevTheory wrote: ↑Mon Jun 17, 2019 12:27 pm Sounds like a delicate balance of side load and plunger stress.
Or just switch to mechanical rollers, and stop screwing around.
INDEED!!!
by redliner
Mon Jun 17, 2019 12:03 pm
Forum: Engine Tech
Topic: high ratio rockers on sbc
Replies: 18
Views: 2706

Re: high ratio rockers on sbc

For a given valve lift, a higher rocker ratio allows you to run less lobe lift, and a larger base circle. This reduces side-loading with roller cams. With flat tappet cams, the radius of the lifter face limits the max velocity you can move the lifter. With this max lifter velocity limit, a higher r...
by redliner
Mon Jun 17, 2019 10:59 am
Forum: Engine Tech
Topic: high ratio rockers on sbc
Replies: 18
Views: 2706

Re: high ratio rockers on sbc

More valve open air flow area within the seat to seat valve events. The valve lifts higher and lifts faster. Usually increased rocker ratio benefits the intake side more than the exhaust on a typical sbc 23° cylinder head. Yes often more power and a bit more torque. The valve spring and pushrod hav...
by redliner
Mon Jun 17, 2019 10:57 am
Forum: Engine Tech
Topic: high ratio rockers on sbc
Replies: 18
Views: 2706

Re: high ratio rockers on sbc

More valve open air flow area within the seat to seat valve events. The valve lifts higher and lifts faster. Usually increased rocker ratio benefits the intake side more than the exhaust on a typical sbc 23° cylinder head. Yes often more power and a bit more torque. The valve spring and pushrod hav...
by redliner
Mon Jun 17, 2019 10:25 am
Forum: Engine Tech
Topic: high ratio rockers on sbc
Replies: 18
Views: 2706

Re: high ratio rockers on sbc

novafornow wrote: ↑Mon Jun 17, 2019 9:53 am It just gives you more lift and a little more duration. May or may not help. But it is simple and cheap.
Yes, thanks, I get that part but I mean on high zoot engines that run 1.7 and higher rocker ratio and were designed that way from the start.
by redliner
Mon Jun 17, 2019 9:47 am
Forum: Engine Tech
Topic: high ratio rockers on sbc
Replies: 18
Views: 2706

high ratio rockers on sbc

Can someone please explain to me the benefit of higher than stock rocker ratio? More torque?
by redliner
Fri May 31, 2019 11:07 am
Forum: General Tech
Topic: Critique 1/4 mile run
Replies: 23
Views: 8616

Re: Critique 1/4 mile run

more Info for you to look at : good correlations : Thanks Max! It looks like ( as I knew) my bottom end lacks alot! What is your opinion ? a typical NHRA SuperStock SS/J Class Car will accelerate to these ET/MPH times : anywhere from 1.370 to 1.382 60 Feet ET's ....so you should expect to reach tho...
by redliner
Wed May 29, 2019 7:02 pm
Forum: General Tech
Topic: Critique 1/4 mile run
Replies: 23
Views: 8616

Re: Critique 1/4 mile run

Critique 1/4 mile run Post by redliner » Mon May 28, 2018 12:03 pm Hi guys, Can you tell me what you think of these numbers and where there is room for improvement? Thanks! 414 sbc, 11.5-1, Liberty faceplated TKO 600, 4.88 Olds in a 1942 Stude Champion coupe. 3100 lbs. 60'- 1.446,330'-4.262,1/8- 6....
by redliner
Mon May 27, 2019 8:19 pm
Forum: General Tech
Topic: Critique 1/4 mile run
Replies: 23
Views: 8616

Re: Critique 1/4 mile run

Up date! New low et. 1.447, 4.150, 6.448, 106.44, 8.446, 10.148, 131.69. Sluggo off the line but a 25.25 mph gain in the top 1/2 of the track!!!! What do you guys glean off this info you can help me with?
by redliner
Tue Apr 30, 2019 10:06 am
Forum: Engine Tech
Topic: Totalseal rings
Replies: 76
Views: 7855

Re: Totalseal rings

tenxal wrote: ↑Tue Apr 30, 2019 9:49 am For me, the gapless rings are a solution to a non existent problem. :wink:
HHHHMMMM thanks to all for the input! Food for thought indeed!
by redliner
Tue Apr 30, 2019 10:04 am
Forum: Engine Tech
Topic: Totalseal rings
Replies: 76
Views: 7855

Re: Totalseal rings

MadBill wrote: ↑Mon Apr 29, 2019 10:52 pm As we know this cuts both ways, but David Vizard is a fan of Gapless top rings.
Ok here is more good info just what I was looking for!!!
by redliner
Tue Apr 30, 2019 10:02 am
Forum: Engine Tech
Topic: Totalseal rings
Replies: 76
Views: 7855

Re: Totalseal rings

Contrary to what you may read or have been told, gapless rings will not net you gains like you expect. They have a tendency to "flutter" which affects ring seal. No, Matt Hartford (total seal VP) doesn't run them in his pro stock either. Many dyno tests have proven they don't work as well...
by redliner
Mon Apr 29, 2019 5:16 pm
Forum: Engine Tech
Topic: Totalseal rings
Replies: 76
Views: 7855

Re: Totalseal rings

It’s just gapless top or gapless second and you still need to file for a gap they just have another ring inside that makes it gapless it kind of looks like a oil retainer ring. I wasnt tryin to get lazy it just seems they would be a ring that overlaps with no gap. Are they used much anymore? Never ...
by redliner
Mon Apr 29, 2019 4:24 pm
Forum: Engine Tech
Topic: Totalseal rings
Replies: 76
Views: 7855

Totalseal rings

Does anyone run totalseal rings? Are they gapless top and 2nd ring? Are they worth running? Lots less ring filing....

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