Will wossner pistons work with 156mm rods?

[Scoobystyl]

Will the wossner pistons for a 4g64 work if i use 156mm rods instead of 150mm or am i limited to manley

These are the pistons in question
Wossner Pistons (7 Bolt DSM & Evo / 2.4L) - Modern Automotive Performance

 

[white92talontsi]

Not that particular piston, You need a "stroker" piston if you are doing a Long Rod 4G64 with a 100mm crank.

 

[Scoobystyl]

They would work with a 150mm rod though and 100mm crank... hmm
what other options are there for a 4g64 block, 100mm crank and 156mm rods, all that ive been able to find is manley
Or should i just stick with a plain ole 2.4 so i have multiple options on pistons and rods, from what i understand the long rod 2.4 is a better balanced engine than the std rod 2.4

 

[white92talontsi]

Customs from Wiseco or Manley makes off the shelf pistons for the 2.4LR.

2.4LR is a great engine. One of our shop car's runs a 2.4LR and we've taken it to 9K a million times and made over 800whp. Very picky about Headgaskets though.

 

[Scoobystyl]

Is the lr2.4 that much better than the std if only revving to 8k, or worth the extra $3-400

Well decided to stick with original plan of a lr2.4 and ordered the manley pistons hopefully they work out, there going to be connected to grp 156mm aluminum rods (custom made)

 

[JacksonAuto]

Wiseco now makes a shelf piston for a LR 2.4. Basically it's a big bore stroker piston. 87mm w/1.130 CH.

 

[white92talontsi]

Wiseco now makes a shelf piston for a LR 2.4. Basically it's a big bore stroker piston. 87mm w/1.130 CH.

It's not listed on there site, I know Ron Shearer can and has made plenty of them.

 

[JacksonAuto]

It's not listed on there site, I know Ron Shearer can and has made plenty of them.

Yep, it was Ron that told me they were available off the shelf now- K627M87.

 

[Scoobystyl]

Must have to call to get the wisecos, are the wisecos a better piston than the manley platinum?

 

[JacksonAuto]

They're in the catalog under Evo stroker.

http://www.wiseco.com/Catalogs/SportCompact/MiniMitsu.pdf

 

[camfast]

Customs from Wiseco or Manley makes off the shelf pistons for the 2.4LR.

2.4LR is a great engine. One of our shop car's runs a 2.4LR and we've taken it to 9K a million times and made over 800whp. Very picky about Headgaskets though.

Could you please elaborate on the headgasket issues? And what solutions are out there. Thanks

 

[Scoobystyl]

Ive read they have issues with blowing headgaskets, not sure why though. However people had the most luck with running an o-ringed head or block with a composite gasket

 

[Diamond Star Werks]

Very picky about Headgaskets though.

so it goes through alot or have you found a hg that will last?

 

[white92talontsi]

so it goes through alot or have you found a hg that will last?

On the Evo we run a 87mm Cosworth Head gasket. We usually have to change it about half season. We also run 40+ pounds of boost on that setup. It's the car that made 748whp on a FP black.

We could O-ring it but I choose not too. I'd rather blow the headgasket than the bottom end.

 

[Diamond Star Werks]

On the Evo we run a 87mm Cosworth Head gasket. We usually have to change it about half season. We also run 40+ pounds of boost on that setup. It's the car that made 748whp on a FP black.

We could O-ring it but I choose not too. I'd rather blow the headgasket than the bottom end.

Ah yes I remember you chiming in back in another thread when I was talking about the fp black record and wanting to use it on my car since I have the setup for it currently on my car. Said that you had the record holding car.

One question on that car, stock bore iirc on a 64 is 86.5mm, is that the size piston your using or did you bore it to 87mm? Anytime I Talk about a 64 high hp build I always hear how its weaker than a 63 and not good for high hp due to the larger bore.

 

[white92talontsi]

Ah yes I remember you chiming in back in another thread when I was talking about the fp black record and wanting to use it on my car since I have the setup for it currently on my car. Said that you had the record holding car.

One question on that car, stock bore iirc on a 64 is 86.5mm, is that the size piston your using or did you bore it to 87mm? Anytime I Talk about a 64 high hp build I always hear how its weaker than a 63 and not good for high hp due to the larger bore.

It was .020" over so yes it was 87mm bore. That really is the only downfall of the 64 that I can see. at 87mm there is not much material between the cylinders. If your going to build a high HP 64 best to try and stay 86.5mm and make sure to get the cylinders Sonically measured.

That motor was still on a stock crank as well, We turned it 9-9,200 RPM all the time. I pulled the engine apart a few months ago for a refresh as it had close to 40k miles on it and other than some very minor polishing of the rod bearings everything else was perfect.

We run a OEM front case and oil pump on it with nothing more that detailing the oil pump gears and smoothing out the passageways in the block.

Anything past the kind of HP we were making on that car I would recommend to just fill the block. Other than that the 2.4 long Rod is a great engine. It likes high RPM just fine.