Why is there no stroker motors yet. I see that ZZP is working on one though.

 

Theres one on youtube claimed to be a stoker.

 

Side pipin'. Saw that car the other day... Sounds like Satan taking a dump, looks like the product of said dump.

 

this is a good question actually which I have no answer to.

 

I was into DSMs in highschool and a big upgrade was the 2.4L stroker. The only issue was that you needed to reduce the Redline of you could actually nick the block with the rods. But with the increased displacement people just used bigger turbos to make ridiculous power from about 4k to 6k. I think most were seeing 450 - 600 within that range depending on fueling turbo and tunning. The increased displacement helped spool the larger turbos faster plus they made more torque down low.

 

cuz its expenseive and not cost effective. a brand new forged steel crank that is custom made is gonna be hella $$$$$

Besides you can make the same power without it.

 

Ok so non of the ecotech cranks are interchangable? I thought they all used the same basic set-up

 

the r34 skyline z-tune 2.8L is a stroker and is arguably one of the most furious factory cars that passes emissions at over 500hp TT

 

since when is anyone talking about using a brand new custom made forged steel crank.. i'm pretty sure zzp uses a 2.4 crank

and of course you can make the same peak numbers without it.. it's area under the curve that matters..

 

http://www.*******************/forum...ead.php?t=1568

here you go these rods with LE5 crank

 

 

Actually BTF already have one. His customer (JAMES) with a GT35r turbo LNF solstice has rod and piston combo that allowed him to use the LE5 crankshaft (98mm stroke) producing 2277cc's.
He has a Darton MID sleeved block that opened it up to 88mm for a 2.4L torque monster

BTF offered me to have a stroker kit as well.......but I declined, since I'm going for a compound turbo set-up

 

According to the GM Handbook. The difference between the 2.4L and 2.0L is bore and stroke.

2.0 LNF bore = 86mm Stroke = 86mm Forged
2.4 LE5 bore = 88mm Stroke = 98mm Cast

Everything else is the same

The rods are the same and it makes no mention of the block height. It does say that the LNF uses 8 bolts and the LE5 uses 6. It shows that the upgrade point of the crank is 500HP

 

Ok so it does work then the way I thought. Like the DSM guys did it. 2.4L crank with different pistons. Usually shorter.

you mentioned that he sleeved it. I would like to see if we could do it with out sleeving.
at 2.27 we have gained almost 15% more displacement.

This is probably not worth ripping your engine apart for this but It would be a nice option if you were going to be doing a rebuild anyways. 15% is 15%

 

Are the crank reluctor wheels the same or swappable between the cranks?

 

am I missing something here?

I think making a 2.3L would be cool, but why not just change out the LNF shortblock for an LE5, and have some custom pistons made ~ wouldn't that just be easier?

being of old school mentality, I've been waiting to read of short block modifications, and cam swaps... but so far haven't heard of jack squat on either end.
I know pretty much every engine I am aware of sees gains from cam swaps, but it seems that CSS.net members all think that the variable cam phasing means that lift or duration changes are useless... yeah, right.

 

The LNF is a GEN II block and is superior to the LE5 block I believe. I don't know if they make a GEN II LE5.

 

I had understood that the LNF block, is essentially the LE5 block, but with smaller a bore.

I had read that the L61 & LSJ are essentially the same block, while the LE5 was a revised/updated block that started from the L61/LSJ casting, and that the LNF was a variant on the LE5 casting...

 

I'm the same way. Every motor I get, I research interchangeble parts to make it a heavy breather...

383 Strokers, 409 , 427 BBC. I've tweaked a lot with these.

Barely ever hear about it here.

 

Ok if thats the case then we would just need Wiseco to make us 2MM over sized pistons and we should be good to go.

According to the GM handbook the rods and cylinders don't need to be upgraded till around 400HP where the pistons are at 300HP.

With that in mind if we could use the LE5 block with forged pistons and LNF rods then we would have a 400HP stroker motor for about 1,500.

And yes we can make the same HP out of the stock block but this block would allow for a wider powerband while still being fairly price friendly.

On another note looks like we would have to use the LE5 flywheel because of the bolt patterns.

 

if interested i would talk to zzp about it

 

Yeah I will probably wait to see what they do with their stroker kit.

I would like to build one on the side though. I have found used LE5s locally for 500-700

But I would have to custom order the pistons from Wiseco so that kinda sucks.

 

I could be wrong - but this is just what I have understood to date...

on a side note, I haven't a clue if hte newer LAP uses the same L61 block, or some varaint of the gen II block either...

Frankly I'd be surprised if the crankshafts use a different bolt pattern for the flywheel;
I could see a different sized clutch depending on the engine, but I'd think the flywheels should interchange. This seems to be the way that GM normally does things.

 

We would have to run the LE5 flywheel I think the clutches interchange though.
BTW the Sky LNF flywheel is close to 35 pounds. Sky888 can you chime in I think you have an aftermarket flywheel.


I found out Wiseco does make the pistons already. They are for an 88MM bore
Part # is K635M88 Price is about the same as the standard bore.

SO I think I can start working on a parts list.

1. LE5 block
2. LE5 flywheel
3. Wiseco K635m88 2MM over sized (GM says we can resue the stock rings)
4. LNF Rods

A clutch will probably be needed with the new flywheel can someone with a 2.2 or 2.4 chime in

 

yes I think if you don't bore it.....you'll just end up with 2.3


BTF can hook you up with rod and piston combo that will allow you to use the LE5 crankshaft (98mm stroke) producing 2277cc's.