Guys,

Well i am now heavily thinking about stroking a sr16ve. i was told to use the 2001 crank 4 weight crank the 2.0 rods and pistons. now there has been alot of discussion about what crank to throw in there but what is you opinion? how long will each last the pros the cons i would apppreciate all help thanks

Use the standard 8 counterweight crank. Nissan switched from the 4 to the 8 counterweight crank. The early SR16VE and SR20VE are 4 counterwieght. The newer SR20VE and SR16VE are now 8 counterweight. So Nissan might have found a problem with the crank and switched back to 8.

Originally posted by Andreas Miko
Use the standard 8 counterweight crank.

For clarity's sake, by "standard" do you mean any of the 91-99 DE cranks and rods? Or is it still recommended to run the '01 rods w/ a 91-99 crank? (Assuming the wrist pins would match, etc.)

Thanks,

Josh

i have gotten very different answers so just wondering what people would think!

Thanks

Fosters, The wrist pin does not connect to the crank. The wrist pin connects the rod and piston. All 91-99 are 8 counterweight and 2000-01 4 counterweight.

great topic i think. the lighter crank will vibrate more at high rpm this will probabaly cause the main bearings to wear out faster. but how much faster. it was appearently save for a 2l with a rev limit of 6500-6800. if you are racing you car and puting gobs of performance parts on it (especially when all-motor) do you really expect it to run for 180,000 miles before it fals apart. the light crank is still balanced and Nismo actualy uses the very same crank in its N/A RWD sr20 race silvias so it cant be that bad. its not just another crank, its a lot lighter. it is certainly true that the 8weight crank will last longer, but will the lighter crank still outlast the rest of the engine....i think so but i may be wrong. time will tell the answer to this i guess.

The best bet is to knife edge a 8 counterweight crank. I lost 7.6 pound on the last 8 counterweight crank I did for a friends race car. The guy that does the job is good at it to. If you do decide to lighten the 8 counterweight crank pull the #s off of it before you have the job done. This will save you alot of time. TRUST ME.

that is also a good option andreas people seem to forget you can do that too.

Originally posted by Andreas Miko
Fosters, The wrist pin does not connect to the crank. The wrist pin connects the rod and piston. All 91-99 are 8 counterweight and 2000-01 4 counterweight.

Thanks, I was thinking about using the DE rods w/ the 16VE pistons - that is why I said the wrist pins. Am I correct that the 16 pistons wouldn't work w/ the DE rods and crank b/c they would probably contact the valves? (Re-read the FAQ, but I might have missed that.)

Josh

You are wrong.

If you use SR20DE rods and Crank the piston would fit perfect.

I got a question. What are the benefits to stroking a sr16 as opposed to just getting the sr20ve??

From what I've seen, originally locating SR20VE's were thought to be a problem; so stroking a 16 would be easier IF they 16's were more available. It appears that the 20's aren't as rare as originally thought.

Also, by stroking a 16, you already have the upgraded cams instead of having to buy the 16 cams. I believe either BigTom or Andreas have stated that the heads are the same between the SR20VE and SR16VE, so no gain with either.

Josh

Originally posted by Andreas Miko
You are wrong.

If you use SR20DE rods and Crank the piston would fit perfect.

so sr16 pistons + de rods + de crank = fit perfect??
i thought by doing this the compression will be 14:1???

So, the 4 counterweight crank in the 20VE is the same crank as the 4 counterweight DE crank. But are we sure the 8 counterweight VE crank is the same crank as the 8 counterweight DE crank?

Driving Illini, if you read this post again you can answer your own questions. Also if you read the post again, and look at what you just asked you will see what you have asked is way off from what was explained.

Originally posted by Driving Illini
So, the 4 counterweight crank in the 20VE is the same crank as the 4 counterweight DE crank. But are we sure the 8 counterweight VE crank is the same crank as the 8 counterweight DE crank?


WTF are you talkin about......Sorry had to but in i thought it was funny.... :) .

Jason

Originally posted by b12sr20ve
so sr16 pistons + de rods + de crank = fit perfect??
i thought by doing this the compression will be 14:1???
It seems to me that you are correct in the suppositions, but I think 14:1 is too high of a number. bigtom does know this number. The SR16VE pistons are taller from pin-to-top, which makes a positive deck, or a piston that sticks up out of the bores. If you used a 20VE piston with the 16VE crank, you'd have a negative deck, or pistons that didn't come all the way to the tops of the bores. Personlly, I'd rather find a set of 20VE pistons or have the 16VE pistons shaved for lower static compression.
Originally posted by Driving Illini
So, the 4 counterweight crank in the 20VE is the same crank as the 4 counterweight DE crank. But are we sure the 8 counterweight VE crank is the same crank as the 8 counterweight DE crank?
There are four cranks, but only two strokes (in this discussion, anyway ;)). You and I have 4-weight 2.0l cranks, which have the same stroke as 8-weight 2.0l cranks. There are also 1.6l cranks with four weights and 1.6l cranks with eight weights, which are also interchangable. All SRs use the same bearing sizes and spacings, so you can put any of the four cranks in any of the four blocks.

SR16VE pistons in a DE with 2.0 crank is 12:1 comp.

SR16VE pistons in a VE with 2.0 crank is 14:1 comp.

SR16VE pistons in a VE with 1.6 crank is 11:1 comp.

SR16VE pistons in a VE with 1.6 crank is 11.9:1 comp (N1 head)

SR20VE piston in 190HP VE is 10.3:1 comp.

SR20VE piston from 204 HP 20V in VE motor is 11:1 comp.

Brilliant! We really need to get more documentation on what the specific volumes of the domes, dishes, and combustion chambers amount to on the different heads and pistons, though. And get them together in one place. :(

Whats the rod length for the 16ve and 20ve?