rednikos

rednikos

rednikos

i m working on a new motor now.
f22 crankshaft
ap2 rods
88 pistons
toda b2 cams
toda cam gears
at power itbs
toda header
modulo exhaust
hfc 200 cells

xBoostx

Awesome man. Just went through your thread. Yea your rods were prob to heavy.
Im doing a 2.5 build. But i am expecting fast revs. I went pretty wild with the internals setup.

rednikos

yes rods was toooooo heavy .
i have second thought just a back up plan .
f20 with lightweight toda pistons
for fast reeving but not much power like f22

s2000Junky

All of this lightweight internals talk is in vain if your not going to bolt up the lightest flywheel you can find.

The factory F20/F22 engine/ internals are great with an 8lb flywheel bolted up to it.

xBoostx

Thats not true at all. The bearing and wrist pin load are greatly reduced which is the reason i sought to lose mass on the rotating assembly.

I am in the middle of deciding 8 or 11 pound flywheel myself. I leaning towards 8lb to compliment what I did in the rotating assembly.

s2000Junky

If you spend the money and time building a engine with aftermarket lightweight rods and pistons and then bolt up an 11lb flywheel to it instead of an 8lb, you just negated the whole point. Your working against yourself. If you want the engine to rev up and down fast and free the flywheel has just as much influence on this as the internal engine parts, however the flywheel is the low hanging inexpensive fruit and the engine components are the last thing you would focus on because they are the most expensive and have the least amount of weight savings. Period end of story. Just trying to help you out here. Don't waste your time and money on the engine unless your going to take it all the way. If it were me, id leave the stock engine alone and just run the 8lb flywheel, its a beautiful combo I run with no shortage of free revving responsiveness over stock and it will also reduce some load stresses on the mains too. But you have to weigh out your main focus here. The factory internals are capable of 9k rpm for several hundred K as oem designed. You building the engine to take 10k+ rpm? If not, internals are the last thing that should be on your mind.

xBoostx

Maybe you should jump on my thread so we dont post about my build on his thread.

s2000Junky

Just felt I should throw my 02. Food for thought to anyone.