discussion question for the bp/bpt guys

monty73741 · Post by **monty73741** » February 25th, 2007, 11:31 pm

would a miata stroker kit work
http://www.flyinmiata.com/index.php?dep ... 0%20A-BEAM

was just wondering..

atlantamx3 · Post by **atlantamx3** » February 26th, 2007, 12:24 am

Dont see why not. Its the same block.

monty73741 · Post by **monty73741** » February 26th, 2007, 12:43 am

atlantamx3 wrote:Dont see why not. Its the same block.

i was looking for parts for my 1.6l & stumbled across this

delpy32 · Post by **delpy32** » February 26th, 2007, 1:21 am

would this work on the 1.6l??? 92'
or do they make a kit for the 1.6l?

jaydog5678 · Post by **jaydog5678** » February 26th, 2007, 9:00 am

No, it will not work for the 1.6.

The Flyin' Miata stroker kit is for the 1.8 BP's. It will work for the FWD BP's, but did you see the hefty price tag that came with it?

atlantamx3 · Post by **atlantamx3** » February 26th, 2007, 1:56 pm

jaydog5678 wrote:No, it will not work for the 1.6.

The Flyin' Miata stroker kit is for the 1.8 BP's. It will work for the FWD BP's, but did you see the hefty price tag that came with it?

Yeah BP only. The title of the post is BP/BPT guys.... so I was assuming he was talking about the BP.

Will not work on the B6.

I think he FOUND it while looking theu Flyin Miatas website for 1.6L Stuff. I am sure he knows its for the BP.

monty73741 · Post by **monty73741** » February 26th, 2007, 2:20 pm

atlantamx3 wrote:
jaydog5678 wrote:No, it will not work for the 1.6.

The Flyin' Miata stroker kit is for the 1.8 BP's. It will work for the FWD BP's, but did you see the hefty price tag that came with it?
Yeah BP only. The title of the post is BP/BPT guys.... so I was assuming he was talking about the BP.

Will not work on the B6.

I think he FOUND it while looking theu Flyin Miatas website for 1.6L Stuff. I am sure he knows its for the BP.

yeah i know, its for the BP....i'm just sharing I know how power hungry you 1.8 guys are I'm looking for a 1.6l stroker kit but i think it will be hard to find since most people swap in a 1.8 into there 1.6l miata

jaydog5678 · Post by **jaydog5678** » February 26th, 2007, 3:52 pm

IIRC, Toda makes a stroked crankshaft for the B6.

OROutdoors · Post by **OROutdoors** » February 26th, 2007, 7:15 pm

yeah i know, its for the BP....i'm just sharing I know how power hungry you 1.8 guys are I'm looking for a 1.6l stroker kit but i think it will be hard to find since most people swap in a 1.8 into there 1.6l miata

Monty, you could make your own stroker kit. You could take your 1.6L crank shaft, have extra material welded to the outsides of the journals, then have it reground off center. Since you are having it reground, now is the right time to find a shorter connecting rod. Make sure it fits the piston pin. Since you are regrinding the crank shaft, you may also change the journal diameters to fit the rods you found. Since you are putting this kind of care into your motor, now would be a good time to knife-edge the crank weights, true-up the faces, hone the cylinder, and either replace the pistons or have a good machine shop lighten them up. During the process, you'll need to have your components checked for cracks and chromed. It's a lot of work, but I bet that it would cost the same or less than the cost of a $4000 stroker kit plus installation. Of course, you'll need to verify the oil-pan clearance and the piston-to-head clearance.

Your displacement will increase by twice the change of the offset of the journal, times the surface area of the cylinder walls, times 4. A '92 B6 engine has bore 76 mm and stroke 83.6mm. if you were to e able to offset the journal diameter by 5mm, your net gain would be 191 cc -- total of 1789 cc. This isn't much of a gain for all the money. That's why most perople do the BP swap, it's a much more economical way of getting a bigger engine. Still, if you did stroke a B6, you would have some bragging rights, and your car would have more torque.

-- just an alternative to consider...

monty73741 · Post by **monty73741** » February 27th, 2007, 11:27 am

i dont know what i am doing with my engine, i have everything to turbo the car. I dont want to drag. I am more of a crusing person. I just thought i post this for the bpt/bp guys as an option.

OROutdoors · Post by **OROutdoors** » March 1st, 2007, 1:43 am

monty73741 wrote:i dont know what i am doing with my engine, i have everything to turbo the car. I dont want to drag. I am more of a crusing person. I just thought i post this for the bpt/bp guys as an option.

Yeah, you gotta know what you are going to do with a car. Myself, I'm planning on racing off-road. So, I have a target engine size after adjustments. So, from there, I can work backwards and determine exactly what size the engine displacement would need to be to maximize the total displacement without breaking into the next category.