Search found 376 matches
- Mon Dec 09, 2019 11:51 am
- Forum: Engine Tech
- Topic: Main studs; I should have asked the Speedtalk community first...
- Replies: 30
- Views: 3547
Re: Main studs; I should have asked the Speedtalk community first...
CJ; Thank you, data of importance..... UHL of studs are a bit longer than on the 351w: 3.66". However, there's always some threads x- tra on these studs. A kit for the 351w sounds promising. I have read the rest of you correct; by machining threads in these (Cold- rolled and hardened (actually...
- Mon Oct 14, 2019 1:49 pm
- Forum: Engine Tech
- Topic: 706 LS heads - how'd I do?
- Replies: 16
- Views: 5422
Re: 706 LS heads - how'd I do?
Hey Tony, not sure what application you have these pegged for, but I've always seen some back and forth on the swirl ramp on whether to take it out, leave it, shrink it, etc. For a WOT or race application, I imagine taking it out is the right move. For a street motor I'm not sure, but potentially de...
- Thu Oct 10, 2019 9:50 am
- Forum: Engine Tech
- Topic: Artificial Intelligence to Design Lightweight Parts
- Replies: 55
- Views: 6476
Re: Artificial Intelligence to Design Lightweight Parts
isnt it just an FEA topology optimisation program, the same as what have been around for years? what makes it AI No. Other optimization routines revolve around either set or statistical algorithms for choices on the optimization variables. The algorithm is largely static (keeps trying the same thin...
- Mon Aug 26, 2019 10:46 am
- Forum: Engine Tech
- Topic: What's the ideal injector trajectory angle?
- Replies: 39
- Views: 4370
Re: What's the ideal injector trajectory angle?
The best is in the chamber... SO why is it a problem shooting at the floor like all the sprint cars do? I had no idea what a sprint car set up even looked like. So I checked out some pics and looked at a kinsler sprint car nozzle. They mount them up high in the runner , I'm assuming to take advanta...
- Tue Aug 20, 2019 7:03 pm
- Forum: Engine Tech
- Topic: 2020 Supra B58 Engine Teardown - First Look - Better than the 2JZ?
- Replies: 46
- Views: 5307
Re: 2020 Supra B58 Engine Teardown - First Look - Better than the 2JZ?
All of this is well documented. There are several Formula One white papers on this and why they were coming up with camshaft dampers, quill drives, etc... Honda has also documented how adding weight to camshafts and the timing gear reduce angular velocity changes by over 25%. This increases the rev...
- Tue Aug 20, 2019 6:56 pm
- Forum: Engine Tech
- Topic: 100 Octane Pump Gas by 2020?
- Replies: 138
- Views: 20659
Re: 100 Octane Pump Gas by 2020?
Here there is only interest in gov taxing you more with a carbon tax. Basicly a guilt tax based on a lie. Makes living more expensive. The gov is not interested in you living better, thru increased transportation efficientcy. 100 octane pump gas will never be seen here. Just more carbon tax. That's...
- Mon Aug 19, 2019 4:17 pm
- Forum: Engine Tech
- Topic: Why haven't we moved to higher DC voltages?
- Replies: 36
- Views: 3781
Re: Why haven't we moved to higher DC voltages?
I believe the use of "shock" is rather subjective here. Accidentally shorting out the terminals on a fully charged Group 24 battery will "shock" anyone nearby, with noise, surprise, light flash, heat,etc, that they will not care much about whether they actually conducted any ele...
- Wed Jul 31, 2019 6:01 pm
- Forum: Engine Tech
- Topic: GM Rocket block oiling problem
- Replies: 38
- Views: 4435
Re: GM Rocket block oiling problem
Where does the vac pump pull from? Valve cover(s)? What do the drain backs in the heads look like? If you pull from the valve cover (or anywhere else really) you have to make sure it doesn't FLOW at lot to the vacuum pump. It can pull a lot of vacuum, but that doesn't tell you how much volume of gas...
- Thu Jul 18, 2019 1:20 pm
- Forum: Engine Tech
- Topic: Sheared off rod bolts...bike
- Replies: 61
- Views: 5722
Re: Sheared off rod bolts...bike
Did he keep track of the unstretched length? That's usually an easy first line of defense of catching fatigue. If you notice the unstretched length changing, something is yielding. It's not a foolproof method of course, just one more tool in the toolbox. What rod bolt material? 3/8" ARP2000 rod...
- Tue Jul 09, 2019 10:11 pm
- Forum: Engine Tech
- Topic: Pro Stock What If - Carb/EFI
- Replies: 65
- Views: 6724
Re: Pro Stock What If - Carb/EFI
NHRA mandated the carburetors or everyone would have been injected 30 years ago. Same goes with NASCAR. They’re slower because NHRA spec’ed the entire system to be slower. NASCAR did the same. If Pro Stock was a displacement / cylinder limit only, they would all be injected, 4 valves per cylinder, ...
- Sat Jun 22, 2019 1:24 pm
- Forum: Engine Tech
- Topic: Ignorant young racers...is there any hope?
- Replies: 77
- Views: 10167
Re: Ignorant young racers...is there any hope?
Racing went the only way it could have in a capitalistic society..... into a business. It started as enthusiasts doing what they love. Those people still exist but are rarer. It's a deeper love for the art and method of it. Those people will do whatever they have to because they enjoy the spirit of ...
- Sat Jun 15, 2019 2:15 pm
- Forum: Engine Tech
- Topic: Kobalt tools
- Replies: 64
- Views: 8709
Re: Kobalt tools
I've never cared much for craftsman tools. Although I'd never argue the older ones weren't stout, I just never liked the feel of them. I did pick up a friends Craftsman ratchet the other day and it felt crustier than a HF unit. :? Their screwdrivers are okay. My wife got me a set as a present. One h...
- Tue Jun 04, 2019 5:00 pm
- Forum: Electric & Hybrid Vehicle ** NEW **
- Topic: Here is how to do it
- Replies: 111
- Views: 34093
- Thu May 23, 2019 6:07 pm
- Forum: Engine Tech
- Topic: Darin Morgan LS7 Heads: Data/Results Inside!
- Replies: 25
- Views: 8244
Re: Darin Morgan LS7 Heads: Data/Results Inside!
This thread is ooooold. But fine, I'll bite. In my opinion, the fact the engine picked up everywhere from 2500 on likely means that combo liked the extra flow in both the heads and the intake. Just the intake may have helped, but likely not nearly as much as the combination of both. Yeah, the fast ...
- Thu May 23, 2019 6:03 pm
- Forum: Engine Tech
- Topic: Darin Morgan LS7 Heads: Data/Results Inside!
- Replies: 25
- Views: 8244
Re: Darin Morgan LS7 Heads: Data/Results Inside!
This thread is ooooold. But fine, I'll bite. In my opinion, the fact the engine picked up everywhere from 2500 on likely means that combo liked the extra flow in both the heads and the intake. Just the intake may have helped, but likely not nearly as much as the combination of both. Yeah, the fast i...