How to build an NA engine...

[SeptemberSquall]

what does this roughly equate to in revs????

lol

that is all.

[Nim]

piston speed is a physical limit that is due to the connecting rod only. (and also piston mass and rod geometry etc).

hoe does piston acceleration change wqith the above two models? it is the piston acceleration that should be the limiting factor, combined with piston/rod mass, as that is the actual force through the rods.

Are you talking about my three models?

I'd have to run another set of calculations to figure it out exactly, but I guess the 54mm stroke would have to accelerate twice as fast as the 108mm stroke engine, due to it having to get up to speed in half the distance. I hadn't thought of that. Doh!

I'll have to factor that into my little chart.

[oldcorollas]

not distance.. time.. well.. both

thnk about it... piston one has to reach max speed 600 times a minute
piston three has to reach same speed 18000 times a minute....

then again, distances are smaller....
i'm just curious to see someone calculate it

cos calculate A, and then you get F knowing mass of piston (and some of rod)

[LeeRoy]

Ed, what happened with the argument with the titan guy? Did anyone ever destroy an engine with one of his 3.4L stroker kits?

Awesome thread btw

[RObErT_RaTh]

Ed, what happened with the argument with the titan guy? Did anyone ever destroy an engine with one of his 3.4L stroker kits?

This kit for a 2JZ right?

[Nim]

not distance.. time.. well.. both

thnk about it... piston one has to reach max speed 600 times a minute
piston three has to reach same speed 18000 times a minute....

then again, distances are smaller....
i'm just curious to see someone calculate it

cos calculate A, and then you get F knowing mass of piston (and some of rod)

Actually, the first piston has to reach top speed 12,000 times a minute. Once up, and once down on each rotation. Piston three has to do it 36,000 times a minute. It only has to do it 6000 and 18,000 times under the force of combustion though. I will figure it out. My engines all assumed the same mass for the piston by the way, which is why I used the same bore, to keep it the same size.

[LeeRoy]

This kit for a 2JZ right?

Yeh thats the one, there was a link to it on the au supra forums in ed's post and the guy was trying to sell them but when asked a few seemingly relevant questions he had no answer and continued to use sales speak.

[RObErT_RaTh]

Yeh thats the one, there was a link to it on the au supra forums in ed's post and the guy was trying to sell them but when asked a few seemingly relevant questions he had no answer and continued to use sales speak.

Roger, I hate when you get fed that sales BS and try to filter through the junk to get the real answers....

[gianttomato]

[RObErT_RaTh]

Really GT? That go well with a 7MGE does it?

[Norbie]

Only a GT47? Soft.

[jezza323]

GT60 is where its at, thats what i hear lol

[gianttomato]

GT60 is where its at, thats what i hear lol

I typed that in straight up and couldn't get a nice big pic.

[mrshin]

You're all soft...

For little boys:


For bigger kids:

[takai]

For bigger kids:

Wow, they did a really good job at machining up all that other equipment and the chains in 1:24 for that T28....