Mike Simard

The sleeves to my project engine are finished and about to go out for Nikasil tommorow. This project has really snowballed and I'm very proud of it so far. If there's any interest I'll post more pics and stuff, otherwise I'll wait until it's finished later on this year. It's an 87 squirter block. It will be about 427 cu. in depending on the finish bore, I'll have pistons made after it's honed. A Moldex 8cw crank and Chevy LS7 titanium rods.

Tony

Que Brendan in 3...2....1....


Cool stuff!

Unique928

I'd sure like to see all the other pics you have on this project. Love watching engine projects come together. Looks great.

svp928

Who did the sleeves?- nice job!

Steve

FBIII

how are you planning to seal the liners in the block?

BC

So did you mention me because you know what I just acquired that may help me get to the "literage" that Mr. Simard has? It just showed up today, and its beautiful. I think Mike's Project is awesome. I think the process is tried and tested now with the wet sleeves.

What I didn't know was that the Ls7 rods are being used. This is great. I big liter motor with light weight rotating assembly.

I would like to ask mike what he found that made him go for the steel sleeves being coated with nikasil?

Not even getting into the idea of boost added to a motor this big, Louie Ott has shown that with an eye on reducing Torque with individual TBs, adding aftermarket EFI, the larger 4V motors can be very powerful. 7.0L could get very close to 700 at the crank with good rpms, short runner breathing, and efi. I think that would be enough for most people, no?

Vilhuer

Looks like Darton. This has to mean they have stuff ready for 928.

Mike Simard

Steeve, I did the sleeves in my shop. Forget Darton as a supplier, there are some other companies that could supply them but it would be a custom piece. Darton has no blanks of a large enough diameter to be able to work with, they do claim to be in development of a 928 sleeve but I get vibes of confusion from them and would be surprised if it happens. other possibilities are:
1-Advanced Sleeve in Ohio, (440) 205-1055
2-LA Sleeve
3-Perfect Bore in England, they do Nikasiled sleeves for motorsport.

FBIII, there is an o-ring in the block to seal.

Brendan, I'll go into the big story of why it's that way, Nikasil etc. The design comes from giving consideration to keeping as much of the block structure intact as possible around the bottom end, that wound up dictating the material choice, sealing method etc. Let me gather some more pics...

JEC_31

JEC_31 clicks "Instant email notification option and waits patiently

Vilhuer

Is limiting factor bore diameter or required sleeve height? They do have something which works in 944 and 968 blocks.

Next obvious question is, how much $ for sleeve kit with step by step block machining instructions?

blown 87

I agree, there is a lot of money right there.
427 CID, that thing will be a screamer.

Mike Simard

Erkka, this is just a personal project, the sleeves would be too expensive to sell, probably something like $5000. I would be glad to share what I know and help in your build, just pm me and we can hook up.

The problem with Darton is their maximum diameter is 5.35. The block likes to clean up at 5.5 at the top. There is a Darton facility in Spain(?) that might be the source of castings for the US, you may be able to contact them and have good luck. The US people have different stories and sound confused. There is no reason for that big diameter to be a thick band, any support that keeps the cylinder from leaning will do it. There's an cheap old trick for reinforcing thin wall engines that's been used among engine builders, a tapped hole is put in the block with a threaded rod screwing in and bottoming out against the cylinder. That sounds horribly primative but works, there just needs to be minimal contact at the top to keep the cylinder from moving, no need for closed decks ar anything drastic. Even my exaple might be overkill, I don't see why a smaller diameter sleeve will work with a machined aluminum ring to fill the area at the deck, a Swiss cheesed one of course for cooling. Speaking of cooling, the reason I went to great lengths to have flow all around the sleeve is an SAE paper that describes cutting a thin channel between siamesed cylinders. The modification provided measurably decreased detonation with just a thin water passage between cylinders.

blown 87

Would the 928 motor benifit from a reverse cooling type set up?

I think it was in A. Grham Bell or Corky Bell's book talk about how much that reverse cooling and flow make in controlling detonation.

Mike Simard

[QUOTE=blown 87]I think it was in A. Grham Bell or Corky Bell's book talk about how much that reverse cooling and flow make in controlling detonation.
[QUOTE]

Must have been Corky, Alexander Graham Bell is the inventor of the Graham Cracker. We should erase any thoughts of reverse cooling from our minds, the water pump outlet is just too nicely formed into the block itself.

heinrich

I thought Alexander Graham Bell had invented the helmet?