The K668 pistons will be interesting to see how they tune out.

 

Here is wiseco K669M86AP, which is a 1400HD 10.5 stroker piston, however it will soon run in a 2050 CC std stroke g63 156mm long rod with aprox 9.4 - 9.5 CR on pump.

I know the jury is out on LR but I wanted to try some higher CR on pump and while Wiseco doesn't officially list this application I stumbled upon in by accident..

 

Looks tough.

 

ha, talk about part matching.... this is probably a 1000 hp piston set and a 500 hp rod set..

I am cheap, I know..

 

Isn't that the Turbo Tuff rod that's got a great track record in mid 700 whp builds?

 

no, this is the wimpy H beam rod.

 

I think the jury convened on rod ratio years ago

 

depends on which side of the pond you are sitting..

Frankly speaking, I will not notice the difference but am sure having fun trying..

 

There is no difference in power nor torque between a short rod or long rod motor. The long rod/long stroke motors are smoother and less vibration prone than the short versions (i.e. LR2.4 vs 2.4) but still do not make any more power. A LR2.0 may have, and I mean probably not, less reciprocating weight but it is likely that the 30-40g saved in the piston is more than made up for in the rod.

 

I agree completely that in my application it makes little difference (I will run it up to 8000 RPM) but it is an option I wanted to explore and try out while going for a bit more CR (which is the main idea..).. A lucky result was that we found an off the shelf solution from wiseco that is not listed officially and might be interesting to others.. 2.0 LR is quite popular in the UK..

The piston weight is 326g I believe..

 

BTW, thx for the rings, they are perfect.. thumbs up for service..

 

The heavier HD2 casting may be, I know at one point they were down around 309g and the 2.3 piston (more or less the LR2.0) was around 285. They may have gained some weight after being revised though.

 

For the 4B11T Anyone know advantages/issues with Weisco vs Manley pistons? I'd like to do 10:1 SCR and want to be sure I'm getting a piston design with good quench, ring sizing/placement, and wrist pin location. Know where I can find pictures? I'm going to do a bored/stroked 2.4L but I'm weighing out the BAMF (buschur with Manley and Darton) vs the MAP (Weisco and LA Sleeves).

 

How did this asymmetrical piston/rod combo work out?

 

also interested