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Search found 160 matches
- Tue Apr 20, 2021 1:53 am
- Forum: Other - For Sale or Wanted
- Topic: WTB Amsoil synchromesh.
- Replies: 0
- Views: 4
WTB Amsoil synchromesh.
Any Speedtalk venders Amsoil dealers? I need 3 quarts of synchromesh as well as some rear diff gear lube for a posi trac D44hd. I want to support you guys that are here supporting Speedtalk and sharing tech with Idiots like myself if I can.
- Mon Apr 19, 2021 2:08 pm
- Forum: Engine Tech
- Topic: How much does moving the cam affect peak rpm?
- Replies: 26
- Views: 1991
Re: How much does moving the cam affect peak rpm?
YES ... In my testing over the years, if you advance the cam and make more power at the top of the RPM range, you probably have an issue with something to do with the exhaust. what sort of things have you found on the exhaust that were lacking that necessitated an advanced cam other than what Camki...
- Fri Apr 16, 2021 10:02 am
- Forum: Engine Tech
- Topic: How much does moving the cam affect peak rpm?
- Replies: 26
- Views: 1991
Re: How much does moving the cam affect peak rpm?
Every engine combo is different. Rule of thumb: if you want to shift the power down in the RPM, advance the cam in 2 degree steps, until it no longer helps If you want to help the top-end power, do the opposite. Make sure you have the P2V clearance to make the moves. Don't be surprised if the engin...
- Wed Mar 17, 2021 12:04 pm
- Forum: Engine Tech
- Topic: Camshaft questions for 434 with small heads
- Replies: 25
- Views: 2459
Re: Camshaft questions for 434 with small heads
Is there anyone specific i should talk who can help me out with camshaft for an under headed engine like this ? Surprised nobody has mentioned it yet... Speedtalk's very own CamKing of Jones cam designs. He has decades of experience with cams for under headed engines that have to run a spec fuel, c...
- Wed Mar 17, 2021 5:02 am
- Forum: Engine Tech
- Topic: Holley 850...Made in China?
- Replies: 50
- Views: 2816
Re: Holley 850...Made in China?
I don't have a problem with the fact production is going overseas. (I do but you can't fight it. That ship sailed 20 years ago). However, there is a problem when the prices being charged are high and the product is an inferior offshore copy. When I was a kid my folks paid a premium for brand name qu...
- Fri Mar 12, 2021 3:52 pm
- Forum: Engine Tech
- Topic: 2.5" v 3" exhaust on a 500HP 406sbc ?
- Replies: 27
- Views: 10783
Re: 2.5" v 3" exhaust on a 500HP 406sbc ?
My 11sec 406sbc runs thru a custom made 2.5" full dual exhaust system with hand made custom 2.5" in/out mufflers of my own design and full tail pipes. The mufflers are a modified tri-flow design but with propriatory acoustic and flow management. No voo-doo, just physics at work. In back to back dra...
- Wed Mar 10, 2021 5:06 pm
- Forum: Engine Tech
- Topic: Morel 4737 Lifter
- Replies: 1
- Views: 714
Re: Morel 4737 Lifter
Bringing this back up, curious why more of the wild street crowd and sportsman racers do not use these. I understand they would be lobe lift limited just like the factory hydraulic rollers are limited in the sbc 880 blocks. But to be able to use factory dog bones, spider, thrust plate. It seems like...
- Fri Mar 05, 2021 4:51 am
- Forum: Engine Tech
- Topic: Any downsides to anti reversion mufflers/devices?
- Replies: 77
- Views: 5752
Re: Any downsides to anti reversion mufflers/devices?
Has anyone measured flow in both directions to determine the difference in flow? I did this once for an intake manifold device, intuitively it looked like it might be AR, the flow difference was insignificant. I ordered a pair of the 3" in /3". Out. Since they were all Dynatech had in stainless. It...
- Tue Mar 02, 2021 4:43 pm
- Forum: Engine Tech
- Topic: Any downsides to anti reversion mufflers/devices?
- Replies: 77
- Views: 5752
Re: Any downsides to anti reversion mufflers/devices?
Has anyone measured flow in both directions to determine the difference in flow? I did this once for an intake manifold device, intuitively it looked like it might be AR, the flow difference was insignificant. I ordered a pair of the 3" in /3". Out. Since they were all Dynatech had in stainless. It...
- Mon Mar 01, 2021 4:10 am
- Forum: Engine Tech
- Topic: Any downsides to anti reversion mufflers/devices?
- Replies: 77
- Views: 5752
Re: Any downsides to anti reversion mufflers/devices?
This is the place I bought all the pieces to make up the 36" long (4"x8") terminator box I used to replace the mid-muffler and the two bullet mufflers on my 2009 G8 GT. https://www.coneeng.com/mufflers.html I can't say how much the increase in performance was from just the terminator box since it r...
- Fri Feb 26, 2021 3:05 pm
- Forum: Engine Tech
- Topic: Any downsides to anti reversion mufflers/devices?
- Replies: 77
- Views: 5752
Re: Any downsides to anti reversion mufflers/devices?
For what it's worth CrateInsider.com's advice on the DynaTech/Hendren / Crate Insider AR "mufflers" is: "the longer the primary is, the closer you want the muffler to the collector; shorter primaries like 12-14" before AR muffler." They say on a 604 circle track crate they're worth 15-25 ft lbs bet...
- Fri Feb 26, 2021 2:58 pm
- Forum: Engine Tech
- Topic: Any downsides to anti reversion mufflers/devices?
- Replies: 77
- Views: 5752
Re: Any downsides to anti reversion mufflers/devices?
These https://www.facebook.com/marketplace/it ... 194022798/are what I was thinking about when I mentioned tips. They can be bought cheap, are usually t304 stainless steel
- Fri Feb 26, 2021 2:06 pm
- Forum: Engine Tech
- Topic: Any downsides to anti reversion mufflers/devices?
- Replies: 77
- Views: 5752
Re: Any downsides to anti reversion mufflers/devices?
Seems that a typical aftermarket high flow catalytic converter case may be usefull as a donor to do a home DIY AR chamber project. You can play with the input pipe inside (diameter, length, protrution, choke taper) and play with the case volume/length +/- I suspect that these may functoon as a sing...
- Fri Feb 26, 2021 9:58 am
- Forum: Engine Tech
- Topic: Anti reversion chambers on my 19 Charger 392
- Replies: 16
- Views: 1879
Re: Anti reversion chambers on my 19 Charger 392
So here are the Stainless Works catless midpipes modified with Dynatech Anti-reversion chambers installed on my 392. This is one of the first production type vehicles publically shown that i've seen with these installed. So I made sure to post on multiple forums so people can see. The Dynatech anti...
- Fri Feb 26, 2021 9:38 am
- Forum: Engine Tech
- Topic: Any downsides to anti reversion mufflers/devices?
- Replies: 77
- Views: 5752
Re: Any downsides to anti reversion mufflers/devices?
For those guys who just HAVE TO buy a cam to get that "classic" lumpy idle, small and fast-enough headers and AR mufflers seem like a good idea, so I have to ask: Do these AR devices reduce the lumpy idle sound? (That could be a "downside" for some people.) (Is the sound primary driven by OVERLAP o...