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Old 03-14-2008, 04:21 PM   #51
TheJoyOfSix
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Exactly!

No-one is trying to claim that the B230K is a viable starting point for a high power turbo application - it is, as so many have pointed out, a far too expensive and complicated proposition.

It was however an ingenious and slightly uncommon solution to the problem of producing useable power from poor fuel whilst still giving good emissions results back in the day when EFi was still in its infancy. Events in the Efi world developed rapidly and so the Heron Head engine was abandoned by most manufacturers.

Having owned a couple of B230K engined 740's I can say that they do make a superb tow car and also make for a relaxing drive. I ran mine on 95 octane fuel (in fact I have run all Volvos that I've owned bar the Turbos on 95) and found them to be much more flexible in their power/torque delivery than B230E's and F's I have owned/driven.

As has been said earlier, turbocharging a B230K would be an interesting project but it wouldn't be for the faint hearted and it's definitely not the sane way to do things.
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Old 03-15-2008, 04:43 PM   #52
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Build it, it's not my money. I'm spending my money on something that will make power and have replacement parts available in the US.
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Old 03-15-2008, 06:47 PM   #53
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I think those pistons would run a lot hotter because they will have more surface facing the flame.
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Old 03-15-2008, 08:02 PM   #54
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yeah the kent engine was bowl in piston , a pretty long lived engine beloved of ford escort/cortina owners , hell i even had one .

Formula Ford racing cars were powered by it , and they even made 160 hp in race/rally trim from 1600cc .they were quite torquey also , thats the benefit of a good even distribution of mixture .

this engine also was the base for the BDA .

Now , another successful engine of that era , that had F1 aspiration and could also be found on a fire engine , had a wedge shaped combustion chamber in the head.......anyone see where im going with this ?
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Old 03-15-2008, 08:28 PM   #55
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b230f with a thin headgasket and run 87 all day long

/end thread
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Old 07-08-2009, 06:06 AM   #56
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yeah the kent engine was bowl in piston , a pretty long lived engine beloved of ford escort/cortina owners , hell i even had one .

Formula Ford racing cars were powered by it , and they even made 160 hp in race/rally trim from 1600cc .they were quite torquey also , thats the benefit of a good even distribution of mixture .

this engine also was the base for the BDA .

Now , another successful engine of that era , that had F1 aspiration and could also be found on a fire engine , had a wedge shaped combustion chamber in the head.......anyone see where im going with this ?
I just found this thread...can you suggest mods or describe what was done on the 1600cc Kent engines. I do have a mint B230K am about to ditch the single carb in favour of twin side webers or mikunis; will spend the money as this 88 240GL is "as-new"
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Old 07-08-2009, 07:06 AM   #57
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Weren't the ancient Ford Kent engines similar?
Only sport engines? (Mexico and similar models?)
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Old 07-08-2009, 10:32 AM   #58
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We have a 240 230K , its my sons car.
WHEN a 230K runs ok with the standard Solex-vaccum lines-everywhere carb , it runs really well .
Its also easy on the fuel compared to other carbed Volvos we have had. When the Solex Cisac carb starts to give trouble ,usually around 200.000 kms , you cant even get gaskets for them anymore.

On my sons car we simply installed the Pierburg carb from the B23 instead. Uses a bit more gas , but not that much , still rather cheap to run compared to others in Volvoland.
The Solex Cisac is a 2-port carb and the pierburg cost a bit of hp.
I believe the earlier 230Ks had smaller exhaust valves , ours have the normal size valves for a 230 engine.
We have talked a bit about trying to use L-Jet 2,4 on it , but other projects have higher priority right now , and the Volvo runs great...!

Probably isnt the easiest engine to use as a base for a blown engine , but didnt the guy from Finland use these pistons in his rather radical engine , and turn 4 mm off the top of the pistons ?
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Old 07-08-2009, 12:15 PM   #59
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this guy uses the pistons from a B230K with a 16v head in his 140 drag car.

http://forums.turbobricks.com/showthread.php?t=79863

very interesting build.
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Old 07-08-2009, 04:22 PM   #60
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will intake manifolds for other B230s fits the B230K? either side 45 DCOEs webers or mikunis. I am thinking if the porting is differnt on the 631 heron head, there may be issues? NO-one has modified a B230K for twin or quads from what I can see
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Old 07-08-2009, 04:28 PM   #61
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I hate that single carb...its gutless!! It wont run cold & I cant find a manual for it, so wil have to play around and see if choke settings are correct...smooth when warm, but just no power. Cant afford multi-carb set up yet, so will have to simply get the Solex working..*sigh*
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Old 07-09-2009, 01:23 AM   #62
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The Weber down draft carbs will fit the stock intake with only minor fiddling.
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Old 07-09-2009, 04:12 AM   #63
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you dont mean DCOE sidedrafts!!?
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Old 07-09-2009, 07:47 AM   #64
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I'm new here and I don't want to step on any toes, but I think Die Trying has some good ideas and valid points, we need innovators like him around! Please remember: every single mod we have, we have because someone did something that had never been done before. A set of custom forged pistons would only be about $300-$350 from Ross.... Not that big of an expense for a forged piston. You could do up the dish to resemble the one on the "Fireball" or "HE" Jaguar V-12 (the "Michael May" design if I recall correctly... you Brits please help me out on this one) ....that was one mean engine. That Heron combustion chamber looks a lot like the chamber in the Jim Fueling head too.... again one mean performance piece. And if you look at any modern 2 valve head, OEM or aftermarket, you'll notice that the spark plugs have been getting closer and closer to the exhaust valve. Just like the Heron head's plug did in comparison to the "regular" head which is in fact about 12 years older in design. Look how far away the plug is from the exhaust valve on the regular head.

Who knows why Volvo quite making the Heron head....there were probably other factors that had nothing to do with whether or not it was a good design. To say that Volvo killed it because it was garbage would be analogous to saying GM killed the Buick turbo V-6 because it was garbage. Car makers don't always do the right thing.... Volvo didn't always do the right thing....if they had we would have gotten a turbo 16 valve here in America. They did get them in Italy.

The fellow who said that piston temps may be higher may have a valid point... so be sure to run piston oil squirters in that thing.

Please guys encourage outside the box thinking....it's one of the many things that make this site so cool! Die Trying is just more outside the box than most but again, that's cool! God Bless him! And even if he doesn't get this one right, I guarantee you he will contribute other great ideas in the future if we haven't already run him off. (I hope we haven't). He's a thinker much in the same way Smokey Yunick was!
Regards, Eric

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Old 07-09-2009, 02:33 PM   #65
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Pimmboy : No , the downdraft carbs , two port models , like the ones that have been sold for B18 or B20 engines for decades. There is a few different models and sizes to choose from. No personal experience with these carbs , I just know the intake manifold on the B230K engine will fit these carbs ,if the holes in the base plate are elongated a bit...
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Old 07-10-2009, 04:42 AM   #66
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ok, well either snapped cam belt yesterday or blew starter, so will tak eteh Solex off and have a look. thanks viking & Eric you're right on.
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Old 07-11-2009, 01:45 AM   #67
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Thanks Pimmboy.
Regards, Eric
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Old 07-30-2012, 08:54 PM   #68
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I have studied fluid mechanics and thermodynamics.

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Old 07-30-2012, 09:17 PM   #69
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I have studied fluid mechanics and thermodynamics.
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Old 07-30-2012, 09:27 PM   #70
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maybe three years ago.
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Old 07-30-2012, 09:38 PM   #71
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Quote:
Originally Posted by volvorsport View Post
yeah the kent engine was bowl in piston , a pretty long lived engine beloved of ford escort/cortina owners , hell i even had one .

Formula Ford racing cars were powered by it , and they even made 160 hp in race/rally trim from 1600cc .they were quite torquey also , thats the benefit of a good even distribution of mixture .

this engine also was the base for the BDA .

Now , another successful engine of that era , that had F1 aspiration and could also be found on a fire engine , had a wedge shaped combustion chamber in the head.......anyone see where im going with this ?
Yup, I had one in my '56 Lotus 6, an 1100cc FWA with dual SUs.

And I think that FF1600s still run Kent engines, although a Honda engine is now being introduced.
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Old 07-30-2012, 11:43 PM   #72
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why is this thread still here

oh wait any updates progress on heron turbo? ha ha
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Old 07-31-2012, 02:12 AM   #73
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I might try it.


I know this is a zombie thread , and this engine is really looked upon as a stupid idea from Volvo. Lots of them sold here , they didnt have cat which wasnt required untill late 89 here.

Many Volvo lovers over here hate these engines , because of the troublesome solex carb , and because of it being an inference design.It was never sold in the US , I know , but quite a few of us here in Europe can pick them up for nothing !

It does have some strong points , however: it is capable of running way leaner than a normal red block. , my sons 230k made decent mileage with the older carb fitted. When we installed LH 2.4 on it , he was able to get 13-13.5 kms per liter ( you do the math )

That was with an a cam , and a 3.91 rear. He is now running an h cam , another myth punctured , it is said that higher lift cant be used because of the tight clearance between valves and piston.

A few tuners in Sweden have looked at the 631 head in recent years. The valves are longer , because the seats are almost level with the block.

The turn in the ports are also different as a result. The ports cant be made as high flowing as a 405/531 or even a heavily modyfied 160/398/530 there isnt enough material.

BUT , bone stock , the ports flow way better than , say , a 530 in stock form , and it takes hours of work on the 530 to get to the stock flow level of the 631.

These pistons are heavy , and the ports will never make high-rpm na power , but a redblock can be quite fun at 6000 rpm anyway !

I have a brand new B230K engine sitting here in a blue box from Gothenburg , and a new 13T , I think it could be a happy marriage !
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Old 07-31-2012, 02:21 AM   #74
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You might want to read up/search for Smokey Yunicks work/reserch with piston combustion chamber, shapes etc. He played with a somewhat similar idea to this "just to see" on some 'research & development" engines he had.

He wound up with a "propeller shape" machined in to top of piston crown IIRC. I don't recall if he found any benefits though
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Old 07-31-2012, 02:41 AM   #75
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just +T a B230K and report results. There are turbo builds running 11:1+, just use E85 if you are scared of detonation and call it a day.

Do it Viking, dooo eeeeeet!
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