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Search: Posts Made By: DaveMcLain
Forum: Engine Tech 04-23-2014, 12:19 PM
Replies: 15
Views: 219
Posted By DaveMcLain
I doubt that going from .030 to .060 is causing...

I doubt that going from .030 to .060 is causing the problem. You're only talking about removing .015 cast iron and how much insulation value does that little bit of metal have anyway?

You can...
Forum: Engine Tech 04-21-2014, 12:15 PM
Replies: 16
Views: 536
Posted By DaveMcLain
I think running 350 open load in a hydraulic flat...

I think running 350 open load in a hydraulic flat tappet cam application is pushing it when it comes to long term durability.
Forum: Engine Tech 04-21-2014, 12:06 PM
Replies: 11
Views: 294
Posted By DaveMcLain
I try to re use the the stock bolts if they are...

I try to re use the the stock bolts if they are coming from an engine that had not been previously rebuilt and they are not overly corroded etc. This type of bolt is never torqued beyond about 80%...
Forum: Engine Tech 04-21-2014, 12:01 PM
Replies: 23
Views: 654
Posted By DaveMcLain
No, not necessarily.

No, not necessarily.
Forum: Engine Tech 04-19-2014, 12:27 PM
Replies: 17
Views: 591
Posted By DaveMcLain
I think you're right if "flip" means putting the...

I think you're right if "flip" means putting the outlets to the front. When I read flip I thought he meant turning them upside down so that the outlets would face upward to feed a turbo setup.
Forum: Engine Tech 04-19-2014, 08:41 AM
Replies: 17
Views: 591
Posted By DaveMcLain
I don't think you can really just flip the...

I don't think you can really just flip the manifolds on a 460 and have it work right because the ports won't line up correctly without some porting. When you look at the gasket at first glance it...
Forum: Engine Tech 04-17-2014, 12:15 PM
Replies: 47
Views: 1,514
Posted By DaveMcLain
Back when we put on the big Ford Block Summit...

Back when we put on the big Ford Block Summit event we had Jay Cornell and a couple of other guys from IDT come down and talk about what it takes to make a block. That was right when they were...
Forum: Engine Tech 04-16-2014, 07:31 PM
Replies: 47
Views: 1,514
Posted By DaveMcLain
I agree with Paul in that it'll never happen for...

I agree with Paul in that it'll never happen for that price. You could get a quality casting made overseas and machined to tight tolerance but due to the size of the big Ford market the price will...
Forum: Engine Tech 04-16-2014, 12:48 PM
Replies: 27
Views: 976
Posted By DaveMcLain
You would be much better off to build a larger...

You would be much better off to build a larger engine, 557, 572 it'll make more power, your simulation is incorrect. There are many factors that you need to think about and one of them is what...
Forum: Engine Tech 04-14-2014, 12:49 PM
Replies: 11
Views: 427
Posted By DaveMcLain
I've seen an alternator where the field would go...

I've seen an alternator where the field would go open when it was revved up hard and then allowed to idle. Rev it up again and it would work again for a while.
Forum: Engine Tech 04-06-2014, 10:30 AM
Replies: 11
Views: 457
Posted By DaveMcLain
I'd say that it's engine tech for sure.

I'd say that it's engine tech for sure.
Forum: Engine Tech 04-05-2014, 05:40 PM
Replies: 9
Views: 367
Posted By DaveMcLain
They are bad about sticking to the cam especially...

They are bad about sticking to the cam especially with a roller in the 460. I've never seen them be a problem in other engines. I had that happen in the first big Ford I ever built with a roller...
Forum: Engine Tech 04-05-2014, 08:00 AM
Replies: 9
Views: 367
Posted By DaveMcLain
The Durabond cam bearings are the ones to use and...

The Durabond cam bearings are the ones to use and the Clevites are the ones to avoid.
Forum: Engine Tech 03-31-2014, 07:27 PM
Replies: 3
Views: 220
Posted By DaveMcLain
I have not done the pushrod or valvetrain mock up...

I have not done the pushrod or valvetrain mock up so I don't know for sure about pushrod length requirements. It's tough to say but I'm going to do some measuring work tomorrow and see if I can...
Forum: Engine Tech 03-31-2014, 05:17 PM
Replies: 3
Views: 220
Posted By DaveMcLain
Comp Roller Lifter Max Lift Pressure Dump?

Right now I have an engine on the stand that has a Competition Cams XR 286 solid roller cam with Comp lifters. I was just turning the oil pump by hand getting up pressure and having a look when I...
Forum: Engine Tech 03-29-2014, 10:43 AM
Replies: 6
Views: 184
Posted By DaveMcLain
I can't say that I've ever had to drill out the...

I can't say that I've ever had to drill out the holes to accept the diameter of the shank but it is important to make sure that there's a good chamfer under the head of the bolt to accommodate the...
Forum: Engine Tech 03-27-2014, 06:39 AM
Replies: 6
Views: 331
Posted By DaveMcLain
Yes you can go to a larger valve so that you have...

Yes you can go to a larger valve so that you have a nice new seat. .005 change in valve size isn't probably going to be enough to make a difference though. Companies like Engine Tech who sell...
Forum: Engine Tech 03-25-2014, 11:51 AM
Replies: 2
Views: 167
Posted By DaveMcLain
If your small block mandrel seems to fit right as...

If your small block mandrel seems to fit right as far as the bolt pattern goes you might have to do some "adjustment" with a lathe to get it to really fit correctly. I would assume that the mandrel...
Forum: Engine Tech 03-25-2014, 06:49 AM
Replies: 5
Views: 254
Posted By DaveMcLain
Ok, here's an example... On a customer's engine...

Ok, here's an example... On a customer's engine I hooked up the flow meter that I use to measure blowby. It's just a Dwyer meter that measures up to 10cfm. With that hooked to the engine it would...
Forum: Engine Tech 03-24-2014, 06:22 PM
Replies: 5
Views: 254
Posted By DaveMcLain
Those charts are close to useless. They never...

Those charts are close to useless. They never say how many cfm the pump will pull at X amount of depression which is probably the most important aspect of the pump. If the engine puts out 3cfm of...
Forum: Engine Tech 03-21-2014, 12:36 PM
Replies: 8
Views: 397
Posted By DaveMcLain
Is it just me or is the 2nd ring on the piston...

Is it just me or is the 2nd ring on the piston upside down? It's a bit tough to say from looking at the picture but I think it's been touching the cylinder on it's top edge and that's incorrect. ...
Forum: Engine Tech 03-18-2014, 07:59 AM
Replies: 34
Views: 1,059
Posted By DaveMcLain
I don't think I'd be too rough on the guy. Most...

I don't think I'd be too rough on the guy. Most people have no understanding of horsepower and how much 450 horsepower really is in the real world. A typical car with 450 horsepower should run in...
Forum: Engine Tech 03-14-2014, 06:40 AM
Replies: 4
Views: 341
Posted By DaveMcLain
No I don't think they have changed a bit but what...

No I don't think they have changed a bit but what has happened since that time is that there are now inexpensive forged cranks on the market. This keeps engine builders from having to push the...
Forum: Engine Tech 03-12-2014, 07:36 AM
Replies: 12
Views: 619
Posted By DaveMcLain
On my pickup I have a single 3 inch exhaust pipe...

On my pickup I have a single 3 inch exhaust pipe mainly because it was so much easier to get it to fit. It's a '79 F350 Camper Special and the locations of the gas tanks and rear axle would have...
Forum: Engine Tech 03-09-2014, 09:25 AM
Replies: 21
Views: 1,142
Posted By DaveMcLain
On the Morel lifters if I need more oil flow I...

On the Morel lifters if I need more oil flow I don't ever grind a notch or groove from the oil band to the hole instead I use a Kratex wheel to polish down the small area between the hole and the oil...
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