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Search found 110 matches

by Bill Chase
Sat Nov 21, 2020 6:39 am
Forum: Engine Tech
Topic: Nylon fuel lines
Replies: 20
Views: 812

Re: Nylon fuel lines

I believe nicopp is nhra approved for fuel line use in efi applications. one of the name brands is CUNIFER It is a 19% nickel/ 80% copper alloy and does not work harden or fatigue like regular copper. if the uscg approves it, I am certain the NHRA would approve it. it will not work harden like tradi...
by Bill Chase
Fri Nov 20, 2020 7:17 am
Forum: Engine Tech
Topic: Nylon fuel lines
Replies: 20
Views: 812

Re: Nylon fuel lines

The best Copper line ( easier to work with ) might be an option to consider where you mentioned running the steel line ?? Mark H. 3/8 nicopp line is a little salty, but if you buy it as a premade brake line from advance auto a 6 foot stick of it is like 12 bucks. it bends easy, super easy to put a ...
by Bill Chase
Fri Nov 20, 2020 7:09 am
Forum: Engine Tech
Topic: How much does moving the cam affect peak rpm?
Replies: 18
Views: 1098

Re: How much does moving the cam affect peak rpm?

I've seen valve lash change rpm more so than specifically changing intake centerline. Was this a hydraulic roller where you see the gains/losses? I am using one of Mike's cams. nothing radical276/280 adv 228/232 @ 50 576/576 110 lsa installed at 107icl exhaust 113 icl. I just degreed it where the c...
by Bill Chase
Wed Nov 18, 2020 3:49 pm
Forum: Engine Tech
Topic: How much does moving the cam affect peak rpm?
Replies: 18
Views: 1098

Re: How much does moving the cam affect peak rpm?

advance cam until max cranking compression was achieved The person who wrote that is still in grade school. Every engine will give maximum CCP with intake closing at BDC. I didn't quote it verbatim. What they basically meant was install straight up, or as the cam grinder indicated. Then advance or ...
by Bill Chase
Wed Nov 18, 2020 4:10 am
Forum: Engine Tech
Topic: How much does moving the cam affect peak rpm?
Replies: 18
Views: 1098

Re: How much does moving the cam affect peak rpm?

Played with my small block, moving the cam really didn’t change the powerband, mostly just traded torque and horsepower. Since every engine is unique in it’s assembly of components, I don’t believe altering cam position will have the same effect in every situation. If you have the time it’s worth t...
by Bill Chase
Mon Nov 16, 2020 3:47 pm
Forum: Engine Tech
Topic: Who rebuilds/modifies Thermoquads?
Replies: 34
Views: 3524

Re: Who rebuilds/modifies Thermoquads?

STEVE DULCICH :lol: :lol: :lol:
by Bill Chase
Mon Nov 16, 2020 3:42 pm
Forum: Engine Tech
Topic: sbc valve spring oilers
Replies: 11
Views: 675

Re: sbc valve spring oilers

If a guy were to use these on the typical10.5:1 street/strip small block with moderate cam, aluminum heads w/ roller rockers, and melling hv pump. would special valve seals be needed? Hardin marine makes a nice piece that makes fitting very simple. and feeding it from the oil temp or pressure port ...
by Bill Chase
Sun Nov 15, 2020 10:37 am
Forum: Engine Tech
Topic: sbc valve spring oilers
Replies: 11
Views: 675

Re: sbc valve spring oilers

Maybe I should be asking for a video, or description of sbc top end oiling at rpm when warm? Does the pushrod oiling spray hard enough that oil is dripping all over the springs already? Anyone have spintron footage that shows the oiling in action?
by Bill Chase
Sun Nov 15, 2020 10:21 am
Forum: Engine Tech
Topic: sbc valve spring oilers
Replies: 11
Views: 675

Re: sbc valve spring oilers

Even if you look at the y body l98/lt1 valve covers they had drip tabs in the valve covers. I suspect they were mostly to keep the factory pivot balls full of oil to keep things cool. the 91 l98 did come from the factory with a melling m55hv if i'm not mistaken? it definitely has enough oil pressure...
by Bill Chase
Sun Nov 15, 2020 7:49 am
Forum: Engine Tech
Topic: sbc valve spring oilers
Replies: 11
Views: 675

sbc valve spring oilers

If a guy were to use these on the typical10.5:1 street/strip small block with moderate cam, aluminum heads w/ roller rockers, and melling hv pump. would special valve seals be needed? Hardin marine makes a nice piece that makes fitting very simple. and feeding it from the oil temp or pressure port o...
by Bill Chase
Tue Nov 10, 2020 11:32 am
Forum: Engine Tech
Topic: Rev kits , hydraulic roller cams.
Replies: 12
Views: 525

Rev kits , hydraulic roller cams.

Just an observation, but in my reading here, rev kits were suggested a lot up until about 5 years ago, now not so much. Afr even stopped offering them for their renegade and eliminator heads Average power goes up, rpms too, and guys are doing it with hydraulic roller stuff, are valve springs better ...
by Bill Chase
Tue Nov 10, 2020 7:15 am
Forum: Engine Tech
Topic: Ka Boom!
Replies: 8
Views: 1040

Re: Ka Boom!

I worked in die cast for a few years, and any of the mag or zinc parts we had to blast in a small cabinet were over built cabinets, with 1 inch thick lexan window, and all were fitted with a fike disc, usually pointed away from the operator, similar to a burst panel on a nitrous intake, or turbo int...
by Bill Chase
Tue Nov 03, 2020 4:49 am
Forum: Engine Tech
Topic: 4 stroke killin' 2 stroke idea
Replies: 41
Views: 1554

Re: 4 stroke killin' 2 stroke idea

I personally love 2 strokes, last one I messed with was 200cc air cooled. Was a conservative 35hp and would run on 87 octane all day long at less than 8500 rpm. Try doing that with a naturally aspirated 200cc 4 stroke!
by Bill Chase
Tue Nov 03, 2020 4:46 am
Forum: Engine Tech
Topic: 4 stroke killin' 2 stroke idea
Replies: 41
Views: 1554

Re: 4 stroke killin' 2 stroke idea

Closed course racing isnt effected by EPA BS Win sunday, sales increase on monday! And given the fact that most moto stuff has to use a "production" bike, I would argue closed course racing is very much influenced by the epa. The Honda, Kawasaki, Suzuki, Yamaha teams do not make money supporting ra...
by Bill Chase
Fri Oct 30, 2020 1:33 pm
Forum: Engine Tech
Topic: Header wrap
Replies: 9
Views: 541

Re: Header wrap

Making a bag to enclose the primaries is even cooler, much less work, easier to change. A local circle track racer suggested I wrap the primaries from the flange about 12-18 inches down each primary.He said that would give most of the benefits, and not saturate the entire header with excess heat Gi...