long rod 4ZE1

Impulsive Yank · Post by **Impulsive Yank** » Fri Jun 16, 2006 5:32 pm

2.3 crank in a 2.6 block for a high reving screamer.

at one time I used all the data I had available to deduce a rod length. I don't have my notes atm but I recall the rod ratio exceeding 2.0 - possible combo to approach 10k rpm?

I dunno, just throwing it out there. getting tired of not seeing any new discussion - let me here what you think!

Tommy · Post by **Tommy** » Sat Jun 17, 2006 1:48 am

Nah, keep the extra voulume. If you go for original style pistons and use pin buttons on the pistons, you should get to just under 160mm rods. 159mm rods would give you 1.67 rod ratio, while not close to 1.8 ratio for a screamer, it would be better for a high rewing supercharged engine.

Tommy

Impulsive Yank · Post by **Impulsive Yank** » Sat Jun 17, 2006 5:07 am

it would end up being around 2.4L - still substantial displacement.

GeminiCoupe · Post by **GeminiCoupe** » Sat Jun 17, 2006 11:16 am

If you want higher revs your better off sticking with a closer to square engine like the 4ZC1. With the minimal increase to 2.4L that this work gives you, i would probably just stay with a 4ZD1 and oversize pistons. No point going to more effort when there is a simpler path.

Nick-

Rodeobob · Post by **Rodeobob** » Mon Jun 19, 2006 4:50 am

I would say that the 2.6L block would have a higher deck height than the 2.3L.

Whats the point in having a block where the pictons only use half the bore height????

Bob.

Tommy · Post by **Tommy** » Mon Jun 19, 2006 6:24 am

What Impulsive Yank is talking about is an 2,6 block with a 2,3 crank and custom rods to match (pistons to would be natural),
to make a high RPM screamer with high stroke to rod lenght ratio.

Any body know if the 2,3L crank is fullbalanced? (two cunterwheights for ewery bore) The 2.6 is, while the 2.0 isn't

Tommy