Dickmeyer Automotive's Mazda B3 Performance Valve Train Kit

[drddan]

You carb guys really need a redesigned intake.

Yes we do!!!! I have a B6, carbed with a B3 intake. It Sucks! Would like an intake with different porportions.

Was looking into the 1985 B6 carbed intake. Would that intake flow better?

[mattdickmeyer]

My line of thinking is simple in regards to building your B3 or doing a swap. You already have the B3, it's in your car, it's free. Many of you have already bought headers & the like, which could all be reused, saving additional money. If you are doing a swap, you have to by an engine. Often times in unknown condition, possibly having to perform a repair just to get it running. Then fab motor mounts & things of this nature, which isn't a huge deal but just another obstacle. Then there is the matter of never being happy with what you have & wanting more. At this point, you have already taxed the stock internal components of your swap engine, requiring you to put the same amount of money in it ( actually more because there is 2 of everything in the valve train ) as you would if you would have just stuck with the B3. The advantage of displacement is trivial at best. Think of it like this, "I would much rather have a Mustang with a well built, nasty 306 than one with a bone stock 460."

[mattdickmeyer]

Yes we do!!!! I have a B6, carbed with a B3 intake. It Sucks! Would like an intake with different porportions.

Was looking into the 1985 B6 carbed intake. Would that intake flow better?

Sorry, I couldn't answer that. Unfamiliar with that intake.

[bhazard]

Re: Dickmeyer Automotive's Mazda B3 Performance Valve Train Kit

Hmmm... maybe I should have you build me up a b3 for my project instead of a BP...

[xaero_81]

Hmmm... maybe I should have you build me up a b3 for my project instead of a BP...

Should do something Festiva related. :-)

[MiltonHavoc]

I could not imagine what 150 on a b3 would be like......
Now I gotta go find threads on what people have done NA with a b3.

[KingFish]

I could not imagine what 150 on a b3 would be like......
Now I gotta go find threads on what people have done NA with a b3.

It would be like 7000rpms.

[bhazard]

Re: Dickmeyer Automotive's Mazda B3 Performance Valve Train Kit

7000? I would hope at least 8. I revved my b6t and BP to 7200 on stock valve train.

[FestYboy]

Matt, not sure what you plan on getting out of a BIG BORE kit for a B3 as they are non-siamesed cylinders, not much to work with there, where a B6 bottom puts you with larger and siamesed bores right off the bat. i'm all about getting the most out of a B3, but IMHO, a stroker kit is where it's at for more displacement.

that being said: stroke a B3, and DE-stroke a B6.... i hope you see where i'm trying to go with this :evil4:

[Bert]

Matt, not sure what you plan on getting out of a BIG BORE kit for a B3 as they are non-siamesed cylinders, not much to work with there, where a B6 bottom puts you with larger and siamesed bores right off the bat. i'm all about getting the most out of a B3, but IMHO, a stroker kit is where it's at for more displacement.

that being said: stroke a B3, and DE-stroke a B6.... i hope you see where i'm trying to go with this :evil4:

Something I do understand! You get 25 free horsepower merely by stepping up from 1.3 litre displacement to 1.6. And with that you still have a durable/reliable engine. For sure when you start pushing a B3 just to gain 25 hp you'll incrementally lose on engine life. Every additional 1000 rpm you can get out of a stock motor comes at exponential cost for this to be done properly.
If I understand correctly the OEM 1.3 twin cam Festys (the fabled GTX) put out around 90-100 horse but were essentially de-stroked B5s and not built-up B3s.

[FastOrBust]

I'd love to see a b3 putting out some nice power numbers.

[jemartin144]

I am not sure about the architecture similarities between the B3, B6 or B8 ( on the cylinder head ) but Matt does have a B3 header and if the 3 heads are similar or the same in port spacing I bet the B3 header would work either right out of the box or with a bit of fabrication.

There's a B3 header available? I was not aware of this. I'd love some info on what's available. I'd be happy to even just get an exhuast flange for the B3.

[KingFish]

7000? I would hope at least 8. I revved my b6t and BP to 7200 on stock valve train.

I pulled that number out my back side, just meant the power could be stuck very high in the range. Again, just talking out my ...

[FestYboy]

Something I do understand! You get 25 free horsepower merely by stepping up from 1.3 litre displacement to 1.6. And with that you still have a durable/reliable engine. For sure when you start pushing a B3 just to gain 25 hp you'll incrementally lose on engine life. Every additional 1000 rpm you can get out of a stock motor comes at exponential cost for this to be done properly.
If I understand correctly the OEM 1.3 twin cam Festys (the fabled GTX) put out around 90-100 horse but were essentially de-stroked B5s and not built-up B3s.

Bert, that 25 horsepower isn't free. You have to swap engines to get it.

7500 rpm all day long is easy for a stock b3.

And you are correct about the GTU engine.

[blkfordsedan]

I would like to see a set of pistons for the B6 bore (stock or overbore) with the shorter compression height of a B3 piston. That would allow us to use a B6 block for maximum displacement and a B3 crank and rods.
I am admittedly biased, but I think the SOHC B6 is a wonderful base to start with. You get the Bolt-in features of a B3, extensive parts interchangeability, more displacement, bigger valves and bigger ports. Just like a SBF; why build a 260 if you can start with a 302?

It would also be nice if you posted your products on here for those of us that don't do Facebook.

I completely agree with the theory of building the B3 as opposed to swapping a DOHC. 150hp would be great, but that's pushing the limit for the stock trans and clutch. The advantages of using the B3 in terms of cost and not having to mess with a swap begin to diminish when you have to buy an aftermarket clutch or do a G series swap to handle the extra power reliably. HP costs mony, regardless of the package.