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Messages - Machspeed

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46
Non-FE Discussion Forum / Ultrasonic thickness gauge help
« on: April 19, 2018, 10:08:05 PM »
Has anyone here modified the flat tip of a transducer probe so it will have a radius? Pictures? I ordered a cheap unit on eBay that has a flat tip so it doesn't work for cylinder walls which is my primary reason for buying it. I read somewhere about someone doing this but I can't find it now. I checked the unit with gauge blocks and it seems to be pretty accurate and I don't want to mess it up. The tip is stainless steel with a plastic core and a divider for the two sides. The wires are not removable so I cannot machine it in a lathe. I'm thinking about putting it in the mill or just using a grinding wheel to hand work a radius on the tip.

47
FE Technical Forum / Re: Engine Storage Stands ?
« on: April 17, 2018, 09:26:51 PM »
These are pretty cheap:


https://www.stumpysfabworks.com/store/c1/Featured_Products.html

48
FE Technical Forum / Re: So we did a little testing last night.....
« on: April 14, 2018, 11:44:34 PM »
What is the compression ratio?

49
FE Technical Forum / Re: So we did a little testing last night.....
« on: April 14, 2018, 07:02:01 PM »
Can you share any details about the engine?

50
FE Technical Forum / Re: Picking Cam For Electric Fuel Injection ?
« on: March 07, 2018, 10:07:21 AM »
What is the compression ratio of your 428? This will also limit how much duration your cam can have. I agree with the opinions above, a custom ground cam is the way to go with your project. It may cost a little more but well worth it. Remember all of the parts have to work together. I have seen guys put big cams( high duration) in stock low compression engines for the rough idle sound. They sound cool sitting still but the performance is horrible.   

51
Non-FE Discussion Forum / Re: Odd Holley Nozzle
« on: February 14, 2018, 11:41:33 AM »
Thanks guys. I knew someone here would know something about this.

52
Non-FE Discussion Forum / Odd Holley Nozzle
« on: February 14, 2018, 09:59:56 AM »
Has anyone seen a discharge nozzle like this before? It's on a 6299-1(390 cfm) Holley main body. I got this at an estate sale a few years back with several other carburetors/parts.There's a base that I think goes with it and the primary and secondary shafts are connected so they open together with a 1:1 ratio. I'll probably never have a use for this but I thought it was interesting.     

53
FE Technical Forum / Rocker Arm Girdle
« on: January 22, 2018, 08:56:59 AM »
I've seen girdles for stud mount rockers but this is the first one I've ever seen for a shaft assembly.
 
http://www.jomarperformance.com/FE-RockerShaftGirdle.php

54
FE Technical Forum / Re: Rebuilding for track time
« on: April 28, 2017, 08:32:52 AM »
What size is the engine? What type of vehicle is it in?

Nevermind I saw your other post. It's a 390.

55
FE Technical Forum / Re: Jays new block
« on: April 21, 2017, 10:03:05 AM »
From a consumer stand point, I'm more curious about the cost considering the heads, intake and related parts will have to be bought as a package deal. Jay, do you have a ballpark figure in mind?

56
FE Technical Forum / Re: Do you think a valley girdle would help?
« on: March 10, 2017, 11:28:15 AM »
I agree. All valid points. I'm running a manual transmission with slicks in a sub 3000 lbs car. I'm planning to keep the launches on the conservative side, maybe 3-3500 RPM. I have experience with nitrous so I have an idea of what I'm getting into but as mentioned things happen. I called this morning about buying a Pond block and I was told that they have been on order since June. I'm looking at just crossbolting this block and running it until I can get an aftermarket block. Does anybody have any experience with the BBM blocks?

Again, thanks for the advice.

57
FE Technical Forum / Re: Do you think a valley girdle would help?
« on: March 09, 2017, 10:54:52 PM »
I know the horsepower limit of stock blocks has been questioned many times but how much insurance does crossbolting the block give you? I've read that pushing a stock block past 600hp will make it fail but I don't think anyone says if this limitation is for a 2 bolt block or a crossbolted one. My motor should make a little more than 500hp n/a and then I'm planning to hit it with another 125-250hp shot of nitrous. I'm planning to buy an aftermarket block later on so I'm wondering if I should spend the money to cross bolt this block or not. I have no interest in filling the block as I plan to drive the car on street from time to time and the filler may cause it to run a little warm. Jay, given your experience, am I asking too much from a factory block? Would crossbolting the block allow it to handle 700-800hp?

Sorry if I should have started a new thread for this...


Thanks for all the replies. I almost made a post that simply said "What killed your FE?"

58
FE Technical Forum / Do you think a valley girdle would help?
« on: March 09, 2017, 11:27:35 AM »
These have been out for some time and are sold by a few different companies but they are not available for an FE.
http://www.horsepowersales.net/

I'm in the middle of a 11.5:1 compression, internally balanced, 428 build that will be using a 105 block and will be seeing nitrous. I'm concerned about how long it will last. How much power does it take to kill a non cross bolt block? I know there's a lot of variables that contribute to failure but I'm just wondering how far I can go.

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