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how many 7 liter strokers are out there????

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Old 02-10-2008, 09:08 AM
  #31
Vilhuer
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IIRR second filter is spare and comes into use when first one is blocked enough.

Engine looks like 4.4L from 365 GTC/4, 365 GT4 or 4.8L from 400 GT. They are unusual as intake goes into head directly from top center between twin cams. This was done to allow low hood line while engine was installed further forward than in 365 GTB/4 as in GTC/4 etc gearbox is right behind engine while in GTB/4 box is at rear same way as in 928.
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Old 02-10-2008, 12:27 PM
  #32
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On the off-topic of crazy multi-cylinder engine swaps...

These guys could've used a lighter chassis - at least it's a stiff platform that's getting good at road-racing:
http://www.wmsracing.com/wmsweb/vpproject.htm




Now here's a more radical approach:
http://www.ultimav12.ca/





~~~~~~~~~~~~

7.0 liters... 32 valves in a pent-roof head... variable cam timing... high compression... 8 throttle bodies... Motronic or equivalent... lots of potential in a 928 mill.
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Old 02-10-2008, 03:03 PM
  #33
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""Don't worry. M42's posts always sound like this. Usually, there is a "007" sort of high-treason pitch to it about "what info he can release" as well as a dash of backroom dyno promises.

The guy he's talking about is in IL, and does 944 2V and 4V stuff. Very good welder it looks like from his page and info. Nice deck plate. Nice headwork.

But for the cost for someone like him to do the deck plate right, I would just as soon send everything to todd to do sleeves.""

The Deck Plate you speak of was originally all paid for by myself. I paid for the development and all of the programming. BTW, no welding. Also, it is becoming the popular choice over the MID sleeves as there are so many failures happening with the 944 MID system. Not sure why, could be installation not application.

As for my posts, you can call them as you read them. The 928 world will soon see what the 944/968 world is becoming acustom to. New products, new services and above standard work. Take a look at the machine work and high quality parts available now. Deck Plate, Head work, Girdle work, Head studs, the list is becoming longer. I expect the same will happen here, as it did on the 944 board. The status quo will get shaken up a little and have their feelings hurt and we will see the similar reaction. "it doesn't exist, it's not real, and it's not complete without a posted huge dyno sheet.

Why does good machining, good internal parts that make engines stronger etc need to be validated with a dyno sheet? These parts and services are not cheap and not for everyone. They are directed to those that want the best and want real engineered solutions not promises. That is why I asked for them in the first place. I had grown tired of the same old stuff offered by every vendor. None of which did what it was promised. I had broken alot of engines and knew if I wanted these issues solved, I had to move up and get real engineering and real solutions.

I paid for many of them, had a really good engine built that I still have. Once I get some time, I intend to have a car built and install it and do some club racing again.

Out of the parts I asked for many other parts have now become reality. I have had nothing to do with them, but I do know many shops all over the world are now buying them and offering them to their customers. Something must be good. I have nothing vested in any part now, I gave them up in the hope that others would have the use of them. Dave @CEP is the contact. I can only say, it doesn't cost anything to ask and see what's out there now. Like I said, it's not cheap but its good.

Last edited by m42racer; 02-10-2008 at 04:55 PM.
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Old 02-10-2008, 09:24 PM
  #34
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[QUOTE=JEC_31;5088208]On the off-topic of crazy multi-cylinder engine swaps...

These guys could've used a lighter chassis - at least it's a stiff platform that's getting good at road-racing:
http://www.wmsracing.com/wmsweb/vpproject.htm




Now here's a more radical approach:
http://www.ultimav12.ca/





Am I the only one that is asking WHY....you can get 1000+ hp from the motor that came in the GT500....why bother putting the aston unit in there....sure its cool...but whats the point.....it should get beat at the strip or track by a midly setup GT500....
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Old 02-10-2008, 10:07 PM
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Originally Posted by IcemanG17 View Post
Am I the only one that is asking WHY....you can get 1000+ hp from the motor that came in the GT500....why bother putting the aston unit in there....sure its cool...but whats the point.....it should get beat at the strip or track by a midly setup GT500....
I always find it odd when car guys ask these questions. My only response is: "why not?"

What's the point in doing something the same way everyone else is doing it?
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Old 02-11-2008, 01:33 AM
  #36
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Originally Posted by m42racer View Post
As for my posts, you can call them as you read them. The 928 world will soon see what the 944/968 world is becoming acustom to. New products, new services and above standard work. Take a look at the machine work and high quality parts available now. Deck Plate, Head work, Girdle work, Head studs, the list is becoming longer. I expect the same will happen here, as it did on the 944 board. The status quo will get shaken up a little and have their feelings hurt and we will see the similar reaction. "it doesn't exist, it's not real, and it's not complete without a posted huge dyno sheet.
It sounds like your friend or whoever is offering the same products and services that I do but with the advantage of not paying for advertising here on Rennlist.
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Old 02-11-2008, 02:03 AM
  #37
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That Aston engine could be the one that was advertised a few years ago. There was an engine that was supposedly used in testing that seemed to be for sale for a while.

It is tough to know what to think about the car. A Mustang? jeez, couldn't they think of anything better? They deserve a big hats off for uniqueness and innovation. In a world of hot rods with Chevy engines with the only variety being an occasional Ford, it's refreshing to see something that took real effort to implement an idea.

BTW, there's another 'Stang out there with a tank engine poking up through the hood:
http://positiveapeindex.blogspot.com...nd-clever.html

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Old 02-02-2018, 09:01 AM
  #38
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Thread resurrection time.

I am very interested in bringing this up to date as time has moved on an there must be 7.0 + engines out there with real world reliability feedback.

There was lots of discussion about centering rods and failed rods being an issue so any information on the spec of build would be helpful

Thanks
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Old 02-03-2018, 01:47 AM
  #39
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Personally, I believe that when the original liners are machined away and additional material is removed for a larger liner in the extremely brittle Alusil block, most of the strength of the crankcase is taken away. It's not a matter of if the crankcase is going to crack...it's just when. (If you spend the time looking at a cross section of a crankcase with the liners removed, the weakness becomes very obvious.) Interestingly enough, Porsche tried stock sized removable liners on the 944GTR engines and every crankcase cracked before the end of testing. They were forced to completely abandon the Alusil material and recast a different crankcase in an aluminum alloy.

I just had a client schedule a 60,000 mile service on one of my 6.5 liter engines. I have another client with a 600hp version of one of my 6.5 liter engines that has over 30,000 miles on it.

These "tiny" 6.5 liter engines are extremely reliable, for me.
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Old 02-03-2018, 07:14 AM
  #40
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Didn't Mike Simard build a 7 litre ?


Originally Posted by Marti View Post
Thread resurrection time.

I am very interested in bringing this up to date as time has moved on an there must be 7.0 + engines out there with real world reliability feedback.

There was lots of discussion about centering rods and failed rods being an issue so any information on the spec of build would be helpful

Thanks
Marti
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Old 02-03-2018, 08:25 AM
  #41
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Originally Posted by John Speake View Post
Didn't Mike Simard build a 7 litre ?
Yes, the car is sold and is standing not being used in a corner of a garage over there. The most powerful 928 NA engine we know of so far and the engine block never cracked.
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Old 02-03-2018, 09:11 AM
  #42
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Air Filters?

Naw, We Don't Need No Stenkin Air Filters!

But I have to admit, that is one of the coolest intake setups I have seen, quite minimalist!



BTW: Chuck Beck drives his 904 quite a bit and he has stopped by our Turn 7 outpost at the Sebring 12 hour a few times...
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Old 02-03-2018, 02:53 PM
  #43
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Simard intakes were pretty good. Thread is 10 years old and not many more stokers out there, much less more 7 liters. Hmm funny how that works...
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Old 02-04-2018, 06:20 AM
  #44
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Originally Posted by GregBBRD View Post
Personally, I believe that when the original liners are machined away and additional material is removed for a larger liner in the extremely brittle Alusil block, most of the strength of the crankcase is taken away. It's not a matter of if the crankcase is going to crack...it's just when. (If you spend the time looking at a cross section of a crankcase with the liners removed, the weakness becomes very obvious.) Interestingly enough, Porsche tried stock sized removable liners on the 944GTR engines and every crankcase cracked before the end of testing. They were forced to completely abandon the Alusil material and recast a different crankcase in an aluminum alloy.

I just had a client schedule a 60,000 mile service on one of my 6.5 liter engines. I have another client with a 600hp version of one of my 6.5 liter engines that has over 30,000 miles on it.

These "tiny" 6.5 liter engines are extremely reliable, for me.
Hi Greg, your concern is a good example of why itĺs important to gather feedback any builds currently in use.

As as a general observation the lack of 7.0 in general use causes some concern
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Old 02-05-2018, 12:15 AM
  #45
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Originally Posted by Strosek Ultra View Post
Yes, the car is sold and is standing not being used in a corner of a garage over there. The most powerful 928 NA engine we know of so far and the engine block never cracked.
┼ke
Any idea of how many hours/miles this engine has on it?
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