Speed-Talk is running on www.Speed-Talk.com

IMPORTANT: Update your bookmarks to https://www.speed-talk.com/forum/
(Right-click the URL and select "Bookmark this link")

Search found 377 matches

by smeg
Fri Sep 17, 2021 7:58 pm
Forum: Engine Tech
Topic: Oil Drainback/Windage Issues
Replies: 34
Views: 2177

Re: Oil Drainback/Windage Issues

Quick testing update from this past weekend: Run 1: Disconnected accumulator, drained 2 qts of oil for a total of 6qts. in engine. Oil pressure rose with RPM until the top of 2nd gear, where it fell back down to around 30psi for the remainder of the run, which is the same pressure it finished with ...
by smeg
Tue Sep 14, 2021 11:38 pm
Forum: Engine Tech
Topic: Oil Drainback/Windage Issues
Replies: 34
Views: 2177

Re: Oil Drainback/Windage Issues

Quick testing update from this past weekend: Run 1: Disconnected accumulator, drained 2 qts of oil for a total of 6qts. in engine. Oil pressure rose with RPM until the top of 2nd gear, where it fell back down to around 30psi for the remainder of the run, which is the same pressure it finished with ...
by smeg
Thu Sep 02, 2021 7:48 pm
Forum: Engine Tech
Topic: Oil Drainback/Windage Issues
Replies: 34
Views: 2177

Re: Oil Drainback/Windage Issues

I had this exact same problem many years ago although I was reving it higher than you 9000 rpm. I did fix it after lots of head scratching. Do you have a HV oil pump on this engine? Yes, the pump is a Moroso billet unit, P/N 22171. Do yourself a favour and fit a good quality std volume pump with th...
by smeg
Wed Sep 01, 2021 7:49 pm
Forum: Engine Tech
Topic: Oil Drainback/Windage Issues
Replies: 34
Views: 2177

Re: Oil Drainback/Windage Issues

I had this exact same problem many years ago although I was reving it higher than you 9000 rpm. I did fix it after lots of head scratching. Do you have a HV oil pump on this engine?
by smeg
Sun Aug 08, 2021 8:52 pm
Forum: Engine Tech
Topic: Q16 or M5?
Replies: 54
Views: 2358

Re: Q16 or M5?

David Redszus wrote: Sat Aug 07, 2021 1:43 pm
smeg wrote: Fri Aug 06, 2021 9:24 pm I am not going to argue with you over this but I do think I can piss further than you. :lol:
Ok, you win the childish pissing contest.

Now what do you know about fuels?
Me know about fuels? Nothing, I am just a hack. Forget what I said.
by smeg
Sun Aug 08, 2021 8:48 pm
Forum: Engine Tech
Topic: Port volume dyno testing
Replies: 16
Views: 2198

Re: Port volume dyno testing

Port volume is the wrong way to compare ports. You can have a 220cc port with a small pinch and a huge bowl, then you can have a 220cc port with a big pinch and a small bowl. They will act completely different on the engine. Port volume is something that was made up by the manufacturers to sell head...
by smeg
Fri Aug 06, 2021 9:24 pm
Forum: Engine Tech
Topic: Q16 or M5?
Replies: 54
Views: 2358

Re: Q16 or M5?

I am not going to argue with you over this but I do think I can piss further than you. :lol:
by smeg
Thu Aug 05, 2021 9:34 pm
Forum: Engine Tech
Topic: Q16 or M5?
Replies: 54
Views: 2358

Re: Q16 or M5?

Sorry david, I am comparing real world results with back to back testing on the track and on the dyno. I am not concerned with numbers on paper so as an experienced campainer, I have to disagree with you.
by smeg
Thu Aug 05, 2021 1:04 am
Forum: Engine Tech
Topic: Projected-tip spark plug benefits?
Replies: 34
Views: 1810

Re: Projected-tip spark plug benefits?

Way back I was racing a class with a 265 Chevy under "stock" rules. I was reading one of the Hot Rod type magazines and there was an article with a 331" Chevy build that was using surface gap plugs that came in Mercury Outboards. The engine picked up power from the usual plugs by moving the spark c...
by smeg
Thu Aug 05, 2021 12:42 am
Forum: Engine Tech
Topic: Q16 or M5?
Replies: 54
Views: 2358

Re: Q16 or M5?

M5 will pick up more than straight methanol as well.
by smeg
Wed Aug 04, 2021 8:04 pm
Forum: Engine Tech
Topic: Q16 or M5?
Replies: 54
Views: 2358

Re: Q16 or M5?

So shifting at 8500 so peak power around 8000? I would use methanol. I have done a lot of track and dyno testing on this and if you are making peak at 8500 and shifting 9000+ I would use a racing gasoline.
by smeg
Tue Aug 03, 2021 8:51 pm
Forum: Engine Tech
Topic: Top End Oiling Issue – SBC
Replies: 33
Views: 1285

Re: Top End Oiling Issue – SBC

Just put some roller rockers on and forget about it.
by smeg
Mon Aug 02, 2021 6:50 pm
Forum: Engine Tech
Topic: Top End Oiling Issue – SBC
Replies: 33
Views: 1285

Re: Top End Oiling Issue – SBC

Try taking the rockers off and then primimg with just the push rods in, you can then see if the flow is better. This will tell you if it is a rocker problem.
by smeg
Fri Jul 30, 2021 12:41 am
Forum: Engine Tech
Topic: Jeg's Hydraulic Lifters USA Made
Replies: 43
Views: 2916

Re: Jeg's Hydraulic Lifters USA Made

.002-.0025"
by smeg
Fri Jul 23, 2021 11:00 pm
Forum: Engine Tech
Topic: Blaster Cabinet Help
Replies: 28
Views: 1026

Re: Blaster Cabinet Help

I would advise you not to grit blast blocks. Very hard to get all the remnants from blind oil galleries etc. I have seen the problems caused by this.