MartinT

Indeed, it's the lag I don't like. The charger gives a nice surge when you're in the power band, but it's progressive.

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Answering that question for me, I've had a supercharger before (Sprintex on Honda CR-Z) so I knew what to expect. I like the big engine feel with a good slug of torque across the rev range. I like the predictability, especially in the wet. I like the instant response and I strongly dislike turbo lag.

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Then you'll be wanting an automatic gearbox and a truck engine. Not especially sporty, but you can spin the tyres right off! I expect you could get a boxer diesel in the engine bay if you really wanted... however I agree that low torque performance engines can be hard work, and not especially good at daily use, having owned a series of high revving engines.
On the original topic @Jay Bamrah it is disproportionately expensive to tune for NA peak power without increasing cylinder capacity. The "famous" NA engines all have ambitious red lines, complex adjusting intakes, fully variable valve timing and really strong engineering around the camshafts. That stuff doesn't come cheap!
If you soak in some of the press around engines like the Porsche block in the 911R, Gordon Murray's Cosworth unit, the Ferrari 458 V8, Honda's F20C, Mazda's Renesis you really get a sense of how hard it is to get more power when you can't make the flame front any faster. Anyone (sort of) can add boost pressure and fuel, but it takes bespoke engineering to raise the redline usefully and not completely ruin the engine for regular use. The FA20 is a pretty good but not exceptional NA engine at just under 100 bhp/L, but it's a much easier normal drive and more efficient than the F20C that just about squeaks 120 bhp/L.

I see this in my hi-fi forum a lot. "internet wisdom" appears to consist largely of people expressing opinions when they have no experience of the product!

Cool, thanks. I've had good experiences using high power coils on old skool, distributor based ignition systems before, but at least some purveyors of "internet wisdom" claim it's not worth it with COP packs unless pushing big power. Good to hear that's not the case. Another thing for my shopping list, and "little" job for Abbey at some point!

The plugs that came out were in decent condition, so I would attribute most of the improvement to the Delicious coil packs.

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I think so, yes.
I guess the other way of increasing HP is to raise the rev limit but keep the torque relatively flat.

So are you saying that maximum chance of damage is at max torque (5000rpm) or when you’re full throttle at 2000rpm gear 6?

It's interesting to me, too, as Mark made a very safe map for my Harrop.
I did consider replacing the fuel pump with a higher performance one, but awaiting further advice.

It's interesting to me, too, as Mark made a very safe map for my Harrop.
I did consider replacing the fuel pump with a higher performance one, but awaiting further advice.

It's interesting to me, too, as Mark made a very safe map for my Harrop.
I did consider replacing the fuel pump with a higher performance one, but awaiting further advice.

If you want to look at a Harrop installation, just say so!

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About the same as yours. The old coil packs look ok too, I've kept them for spares.

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I had the 60k service done today down at Abbey Motorsport.
A couple of you asked about the Delicious Tuning coil packs. Mine are blue 2017+ ones. Bear in mind that my plugs have also been swapped for HKS ones as preferred by Abbey over the Denso stock ones. Response and pickup are noticeably sharper. If I press the pedal from overrun, acceleration is instant rather than the moment's hesitation that I had become used to. Low down pull is improved, probably just because of the instant response. It's sharper away from the lights but also if prodding the pedal in 6th on the motorway. Overall, it just makes the car that much more responsive - despite already being on a very good ECUTEK tune for the 'charger.

I had the 60k service done today down at Abbey Motorsport.
A couple of you asked about the Delicious Tuning coil packs. Mine are blue 2017+ ones. Bear in mind that my plugs have also been swapped for HKS ones as preferred by Abbey over the Denso stock ones. Response and pickup are noticeably sharper. If I press the pedal from overrun, acceleration is instant rather than the moment's hesitation that I had become used to. Low down pull is improved, probably just because of the instant response. It's sharper away from the lights but also if prodding the pedal in 6th on the motorway. Overall, it just makes the car that much more responsive - despite already being on a very good ECUTEK tune for the 'charger.

I had the 60k service done today down at Abbey Motorsport.
A couple of you asked about the Delicious Tuning coil packs. Mine are blue 2017+ ones. Bear in mind that my plugs have also been swapped for HKS ones as preferred by Abbey over the Denso stock ones. Response and pickup are noticeably sharper. If I press the pedal from overrun, acceleration is instant rather than the moment's hesitation that I had become used to. Low down pull is improved, probably just because of the instant response. It's sharper away from the lights but also if prodding the pedal in 6th on the motorway. Overall, it just makes the car that much more responsive - despite already being on a very good ECUTEK tune for the 'charger.

The FA24 engine overview for the geeks amongst us.

https://motor--fan-jp.translate.goog/mf/article/1636/?_x_tr_sl=ja&_x_tr_tl=en&_x_tr_hl=en-GB&_x_tr_pto=ajax,nv,elem


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Gosh, my 60k is booked soon but the BRZ is only 4 years old.

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Gosh, my 60k is booked soon but the BRZ is only 4 years old.

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Biggest bit of advice is make sure the cat is really warmed up before it goes through emission checks as you’ve not got the primary cat the secondary cat needs to be warmed up by running the engine. 

Agreed.  The only other thing that cycles like that is the electric fan.

I got paint from Subaru Dales and it was only a few quid for a small touch up pot. Worth a call.

Not yet - the 60k service is booked for 3rd August.  I will report on how it feels after it's done.

I'm not anti-coilover but the cheap ones are awful.
My H&R lowering springs and Bilstein B8 dampers are a great match.

Time to get out on the hunt for great coffee again.