Piston/rod package.

[smo0f]

so basically the only downside with boring is low torque in low rpms? (oversquare)

what if you take a square engine, like 85/85 like your example, and make it 95/95? Any downside? Or just high gains all around and no loss of torque?

 

[igdrasil]

you are confusing bore and stroke....you need a picture or animation to understand.

 

[smo0f]

probably. well, i didn't mean to jack the thread, but i think i have general understanding, i'll just bother nick about it more when i see him. thanks for the replies

 

[Kooldino]

so basically the only downside with boring is low torque in low rpms? (oversquare)

Nope. Read what I wrote CAREFULLY.

Increasing the bore will usually increase power EVERYWHERE.

It's just that if you compare 2 motors of the same size, one oversquare and one undersquare, that RELATIVE TO THE GIVEN DISPLACEMENT OF THE MOTOR, the undersquare motor will have more power down low.

what if you take a square engine, like 85/85 like your example, and make it 95/95? Any downside? Or just high gains all around and no loss of torque?

Well, assuming no other design changes (in the head, etc), it would have less rev potential, but much more power in the RPMs that it could still rev in.

If you still don't understand, then just reread our last few posts. I just wanted to give you some basics to aid your purchase from Nick, and I don't want to get any deeper into this in a FOR SALE thread.

 

[smo0f]

well, the consumer needs to be educated if they're going to be paying a lot of money for a product, no? Everyone benefits

 

[brealmp3]

wow so what happened to the rod/piston combo? any updates on that, such as the lower end package? and bigg timm can i get your #, i lost it and have a few things i need to talk to you about.

thanks

 

[BlkZoomZoom]

You guys did read where he said the stroke is increased from 92mm to 92.5mm right?

 

[Bigg Tim]

The 2.2l stroker and the .080 bore would be for N/A only. I thought it would be for FI, but nope, he said .040 is a safe number for an FI bore.....just in case someone else got cornfused like me.