[repeet]

I wonder if there is enough room in the block to replace the crankshaft with a 3.55 mm increased stroke. That would bring the displacement to 2.5 liters. I know that would require a re-tune, but it would also increase the H.P. above 250 and further increase torque. I believe the factory induction components should still be sufficient to feed the added volume.

Then again, would a current production Subaru 2.5 liter crankshaft fit the bill. Or would our induction and and long block components fit on a 2.5 liter short block?

 

[turburklo]

HKS is working on a 2.5l short block that could be purchased, when that is gonna come to market who really knows. I would say it's possible, but it's hard to say at this time what would need to be clearanced if anything. The FA platform doesn't have any factory 2.5l options so I'd wanna say it wouldn't be a drop in.

 

[Vtor]

I think its time for H6 swap! EZ36 -> drop in 260hp and nearly 2x the torque.

 

[about 47 t-rexes]

I'd love a trim with a stronger engine. A lot of people say to just get the 2.0 Supra, but I like the style of the 86 and having backseats (even if calling them backseats is a stretch) is very nice.

 

[Noobtber]

I think its time for H6 swap! EZ36 -> drop in 260hp and nearly 2x the torque.

That will 100% ruin the handling characteristics of the car.

If we replaced the back seats with an H6... now you're talking.

 

[Vtor]

2 piston and bit of crank gotta be lighter then turbo, all plumbing, intercooler, etc and instant torque. No lag.

 

[pandafabrications]

2 piston and bit of crank gotta be lighter then turbo, all plumbing, intercooler, etc and instant torque. No lag.

Probably not. Turbo stuff isn’t all that heavy. Don’t know why people always think it is.

 

[Vtor]

Where it gets added is factor - wayyy off front end of the engine in case of *86

 

[pandafabrications]

Where it gets added is factor - wayyy off front end of the engine in case of *86

No reason it can't be mounted in the back of the bay like EJ series. There's kits that exist for the previous gen that do just that, and they even low mount them.

 

[pandafabrications]

You know, something like that.

 

[pandafabrications]

Or if you don’t prefer the low mount…

 

[BRZerker]

I doubt it’ll happen, but I’d be all for an FA25 (or FA26) on the next gen. Having driven the 2.0L first gen and this 2.4L second gen, the bump in displacement and torque make a nice difference, especially for daily driving. Would be ideal if they could maintain 100 hp/L to maintain the rev happy nature of the engine, peak power around 7000 rpm.

 

[Wayward67]

I'm not sure about the turbo kits, but the supercharger kits add 100lbs.

 

[pandafabrications]

Just for shits and giggles since I have it sitting here for another project. GTX2867R Gen 2. 550hp capable turbo. A whopping 10.4lbs. The plumbing may be another 10lbs at best, and 5-10lbs for an intercooler.

Good luck adding any appreciable amount of power for anywhere near the weight. Nitrous would be the only way to come close.

 

[DylanJZA]

yeah, aftermarket turbo systems (especially on an inline) are pretty damn light. Add to that the fact that they use waste energy and they are super efficient all around. It's really just the heat factor for me, but otherwise they are amazing.

 

[Wayward67]

Yeah but that's just the Turbo. Where is the rest of the kit?

 

[DylanJZA]

The entire turbo kit on my 1JZ weighs about 50lbs (manifold, turbo, wastegate). Piping, FMIC, and BOV are probably another 15lbs max. So, I'd say 65lbs.

My turbo is also ancient and pretty heavy due to that so... It likely weighs at least double the one shown above lol.

EDIT: Just checked and mine weighs in around 25lbs, so yeah, 55lbs overall is a very realistic figure for a modern setup.

 

[pandafabrications]

Yeah but that's just the Turbo. Where is the rest of the kit?

I quoted approx weights for the rest of it.

 

[pandafabrications]

The entire turbo kit on my 1JZ weighs about 50lbs (manifold, turbo, wastegate). Piping, FMIC, and BOV are probably another 15lbs max. So, I'd say 65lbs.

My turbo is also ancient and pretty heavy due to that so... It likely weighs at least double the one shown above lol.

EDIT: Just checked and mine weighs in around 25lbs, so yeah, 55lbs overall is a very realistic figure for a modern setup.

Not all of that is additional weight though. The manifold for example is replacing a header.

 

[DylanJZA]

yeah, thats a good point. I'd say my manifold weighs about 15lbs or so if I had to guess.

So, that puts us at ~40lbs overall.