I've got garage envy!
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looks very cheap N42 block
- Thread starter Robbie J
- Start date
Turn & Burn
Club Member
Hah hah, thanks Rob, it’s a mess right now buts it’s my favourite space!
richiep
Club Member
You’ve got more clear floor space than I have! Too many parts lying around my garage! At least I have a second space to work in too (the barn/workshop)!
Nice work on verifying. So quite close (closer than I remember). I guess the point I am making is that to really take advantage of the LD you need to maximise what it’s capable of and the other parts of the stroker setup with it. Otherwise you aren’t really adding much over what you can achieve with an L28 crank in a well built engine. That 6-800 quid for an LD crank could easily go towards other aspects in making an L28-L30 size engine that could outperform a more modest 3.1. But it depends on what you want to achieve. After all, my whole concept of stroker building - as we’ve talked about before - has got skewed by mission creep and BHP chasing!
I don’t know the maths, but I’m sure there must be some discussion (hybridz?) on the difference in rotating mass of the two cranks. Some of the Japanese modified LD cranks I’ve seen are almost unrecognisable based on the reshaping of the counterweights. That 400g probably equates to a big difference when pushing 9k revs...
Nice work on verifying. So quite close (closer than I remember). I guess the point I am making is that to really take advantage of the LD you need to maximise what it’s capable of and the other parts of the stroker setup with it. Otherwise you aren’t really adding much over what you can achieve with an L28 crank in a well built engine. That 6-800 quid for an LD crank could easily go towards other aspects in making an L28-L30 size engine that could outperform a more modest 3.1. But it depends on what you want to achieve. After all, my whole concept of stroker building - as we’ve talked about before - has got skewed by mission creep and BHP chasing!
I don’t know the maths, but I’m sure there must be some discussion (hybridz?) on the difference in rotating mass of the two cranks. Some of the Japanese modified LD cranks I’ve seen are almost unrecognisable based on the reshaping of the counterweights. That 400g probably equates to a big difference when pushing 9k revs...
Turn & Burn
Club Member
Can’t remember if I’ve already said elesewhere, but I’m hoping to maximise on the crank by offset grinding another couple of mm and rebuilding on Toyota rods. Still hopefully a fairly cheap option as the LD engine was cheap enough, but the money will evaporate elsewhere I’m sure!!
Me too!!!!!!!!!
Outside of headline power figures, surely the longer stoke crank will leave an L28 in its low end torque wake!? A well built L28 will undoubtedly rev better but a longer stroke has surely gotta have benefits over and above stock stoke!?
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richiep
Club Member
Ah yeah, I remember we discussed that. I’ll be interested in seeing that come to fruition. It’s on my list of things I’d like to try out. It’s a route to 3.2L and up.
And don’t anyone think I’m dumping on LD crank-based strokers btw. After all, although Dixie’s engine will be using a Farndon billet jobbie, I’ve got a V07 sitting on the shelf too for future experiments! The red Z might acquire a new stroker lump a few years down the line...
Ali - the point I was making was that you can throw together a “cooking stroker” using the LD (balanced and checked etc), stock L24 rods, some KA24E flat tops and whatever head/cam setup and you’ll have a reasonably potent but torque-y engine in the 240bhp+ range. But similar performance can be had from an L28 with a bit more effort (and £). Basically, there’s a crossover zone in money and effort between a basic stroker and a well executed L28 that might influence how one goes forward. Of course, you can also build an L30 without the LD crank...
Anyway, lots of options, lots of fun!
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Alphabettispaghetti
Club Member
The thing that puts me off about big bore engines is having too much mid-range torque/power.
But I feel any engine in your car is better than the current situation! [emoji12] Yes I went there, eat me!