High Compression pistons

[Panda Mao]

I believe 250whp n/a can be achieved its just more costly than going forced induction
but if you go higher than stock compression you definitely need supporting mods and probably e85 otherwise things start to break ><

[Turdinator]

I think 250whp is doable. There are already some post suggesting that a little head work opens things up nicely for higher revs, although that has been on FI applications so far. I wouldn't bother with power blocks tho as they will move the torque lower in the rev band which isn't what you want here.

I think at this point in the FA20s development the cams and intake manifold will be the most expensive and hardest to track down and they won't be off the shelf items.

I will be watching where this goes

[Panda Mao]

Originally Posted by Turdinator

I think at this point in the FA20s development the cams and intake manifold will be the most expensive and hardest to track down and they won't be off the shelf items.

considering the fa20 is a brand new motor built from the bottom up and its only debuted for at least 2-3 years so I wouldn't be surprised there is still so much r&d that needs to be done on these motors and the potential vs durability is still up in smoke

[whataboutbob]

Throttle modulation minimizes throttle oversteer @EN2_Squirrel


And the SC isn't as laggy as a turbo would be.

[EN2_Squirrel]

Originally Posted by Jason@DSG

E85 or race fuel will be possible but it requires a full engine build especially if you go up in compression, and major cooling and a REALLY good tuner

I am going e85 and i am looking into bill knoes (the guy who did ken block's subaru) to get the tune

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[EN2_Squirrel]

Originally Posted by whataboutbob

Throttle modulation minimizes throttle oversteer @EN2_Squirrel


And the SC isn't as laggy as a turbo would be.

Says the man on r-comps. But yoy are right. Our cars are very different. That was my problem

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[EN2_Squirrel]

Originally Posted by Turdinator

I think 250whp is doable. There are already some post suggesting that a little head work opens things up nicely for higher revs, although that has been on FI applications so far. I wouldn't bother with power blocks tho as they will move the torque lower in the rev band which isn't what you want here.

I think at this point in the FA20s development the cams and intake manifold will be the most expensive and hardest to track down and they won't be off the shelf items.

I will be watching where this goes

Very true about the r&d. But someone has to do it.

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[1086]

12.5:1 isn't high enough for you?! duh fuq

[xwd]

Originally Posted by EN2_Squirrel

Very true about the r&d. But someone has to do it.

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I've built a competitive turbo car for SM before, albeit 6-7 years ago. I'd like to think 250WHP could get it done but I'm not sure the FA20 can get there, not with enough torque to be competitive. Mike Simanyi's 95 M3 is a little under 300WHP in a 2600lb car, but it's a 3.0L inline 6. It makes way more torque than you'll ever see out of an FA20.

I think a 2L NA FA20 could get down to less than 2400lbs, but I'm still not sure it will have the oomph to compete.

If you have an FR-S doing a swap with one of the Toyota V6s might be a better idea than trying to wring out the FA20...

I'm actually contemplating trying the car out in CSP, I think you could hit 210-220WHP on E85 nowadays with the power blocks, right intake, etc. I don't think the car would be competitive against the current Miatas but it would still be a lot of fun, much cheaper than SM, and might get the car moved to DSP where it could be competitive.

[Grip Ronin]

if you have seen how the engine is clearanced, i dont think your left much room for bigger pistons. theyre already past the top of the deck at full stroke and the combustion area is small