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Search found 1387 matches

by Ron E
Tue Sep 15, 2020 2:53 pm
Forum: Engine Tech
Topic: Why no Ardun hemi head SBC conversion?
Replies: 48
Views: 1438

Re: Why no Ardun hemi head SBC conversion?

I think the Captain Obvious answer as to why Ardun never made heads for the SBC, is the SBC already had overhead valves! That, and it came out later than the flathead Ford... when everyone else was coming out with overhead valves as well. That and doesn't the flathead have only 3 main bearings. So,...
by Ron E
Wed Aug 19, 2020 11:26 am
Forum: Engine Tech
Topic: Calvin Elston exhausts?
Replies: 24
Views: 1429

Re: Calvin Elston exhausts?

Joe-71 wrote: Tue Aug 18, 2020 10:54 am Something for nothing world? Quoted me $3500.00 before he even knew what I wanted. Then said I would have to bring car to NC and leave it. Joe-71
He has jigs for a few of the most popular engine/ chassis combinations. Otherwise he needs the car. His headers are worth the money.
by Ron E
Wed Aug 12, 2020 4:03 pm
Forum: Engine Tech
Topic: Weiand MOPAR vertical cross 3x2 intake.
Replies: 20
Views: 1522

Re: Weiand MOPAR vertical cross 3x2 intake.

Panic, great write up on the Weiand super stock intake. Thanks
by Ron E
Fri Jun 12, 2020 10:36 pm
Forum: Engine Tech
Topic: NHRA STOCK valve job
Replies: 27
Views: 1817

Re: NHRA STOCK valve job

When I saw the rules had all the wording involving seat angles and max top above OD, etc, removed from that section my first thought was, “they don’t want to bother checking it anymore”. In my mind the wording was clear. Take it at face value...... any valve job permitted. Yet, I’d still read thing...
by Ron E
Thu Jun 11, 2020 5:01 pm
Forum: Engine Tech
Topic: NHRA STOCK valve job
Replies: 27
Views: 1817

Re: NHRA STOCK valve job

They don't have time to check valve seat angles. Whether they have time to or not...... with the way the rule currently reads...... why would they? And what would they even look for/look at? The entire description of the valve job is “any valve job permitted”. That’s pretty cut and dried to me. Whi...
by Ron E
Wed Jun 10, 2020 12:34 pm
Forum: Engine Tech
Topic: NHRA STOCK valve job
Replies: 27
Views: 1817

Re: NHRA STOCK valve job

I'm involved with several stockers and have been for 10+ years. The tech guys aren't dummies.They are there to keep things from going out of control. That's the reasoning for P/N checks, runner and chamber volume checks. Without them we'd have big chiefs on Stockers in no time. They don't have time ...
by Ron E
Mon Apr 20, 2020 9:05 pm
Forum: Engine Tech
Topic: 1000 HP or Bust
Replies: 16
Views: 1246

Re: 1000 HP or Bust

The engine I'm talking about is still in service. Built around 2008-2010. The rules are similar to NHRA's modified stock classes without the spec carb. It has the benefit of current materials and designs. Of course, these parts are built on the backs of people like your neighbor. They found what nee...
by Ron E
Mon Apr 20, 2020 12:44 pm
Forum: Engine Tech
Topic: 1000 HP or Bust
Replies: 16
Views: 1246

Re: 1000 HP or Bust

I have a good friend with a (at the time) IHRA production S/S 468" with spread port heads single carb , a cast Dart intake (better versions available now) that made 1003 HP at 7900 RPM. Heads flow 480 on a 4.31 bore, 520 on a 4.5 bore (both at .900" lift.) Car ran 5.44 1/8th at 3600 lbs.
by Ron E
Fri Apr 10, 2020 3:35 pm
Forum: Engine Tech
Topic: Spintron
Replies: 65
Views: 3924

Re: Spintron

Don't complain about engine vs. motor if you put a "S" on the end of RPM.
by Ron E
Wed Apr 01, 2020 11:16 am
Forum: Engine Tech
Topic: Big block road race build 572
Replies: 51
Views: 2454

Re: Big block road race build 572

I have to agree with Walter. I don't think you will be able make your torque manageable with a 572 . A 509 at 7K will make a lot, no doubt. And, 7k RPM is well within current endurance valvetrain pieces.
by Ron E
Wed Mar 11, 2020 3:59 pm
Forum: Engine Tech
Topic: Valve lift blown alcohol
Replies: 17
Views: 7587

Re: Valve lift blown alcohol

MadBill wrote: Sun Mar 08, 2020 9:48 pm It can be an issue for any canted valve engine, e.g. BBC with standard guide locations and 2.30"/1.94" valves. (Don't ask me how I know this.. :oops: )
Now I remember. Got in some SCJ Ford heads where the valves clipped each other. Took me a while to realize what I was looking at.
by Ron E
Fri Jan 24, 2020 4:37 pm
Forum: Engine Tech
Topic: Valve lift vs. port flow and cam selection
Replies: 86
Views: 4188

Re: Valve lift vs. port flow and cam selection

I've seen engines that had back-up prior to max lift make similar peak power. But, the torque curves are peaky and they tend to be slow off the corners. Too slow to make it up down the straights. These were backing up pretty hard.. With the ports right your torque curve will be flatter and the car i...
by Ron E
Mon Jul 22, 2019 4:53 pm
Forum: Engine Tech
Topic: ANOTHER SBC STROKER QUESTION 377-
Replies: 181
Views: 6540

Re: ANOTHER SBC STROKER QUESTION 377-

Joe, unless the heads are already stretching molecules, I don't see how your plan could be a bad move. That's what I'm thinking too. But, if your 377 is running out of head up high, you'll get a tiny bit more torque and HP at lower RPM. If your heads can stand more motor it's going to get better. (...
by Ron E
Wed Jul 17, 2019 12:06 pm
Forum: Engine Tech
Topic: Epoxy and Methanol
Replies: 5
Views: 622

Re: Epoxy and Methanol

Resimac, thanks for the link. For what its worth, I coat epoxy with 2 part automotive clear-coat.
by Ron E
Wed Jul 03, 2019 10:01 am
Forum: Engine Tech
Topic: Reduced low lift flow from porting...
Replies: 138
Views: 6206

Re: Reduced low lift flow from porting...

We like 55° seats on the exhaust in almost any drag race application that is freshened yearly or more. The 55 allows a touch more duration giving increased duration at meaningful lifts. It works with big throats which helps make the port quieter. And, the higher lifts (subsonic) usually are better w...