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LOL As soon as I heard the WCF was configured to 'simulate Dynojet numbers' I closed the video.

My issue with the cylinder coating is not longevity, wear resistance, etc.. If that were a concern it would have shown up by now on various platforms. Elevated cylinder pressure, heat, etc.. from more power is a lot harder on cylinder walls than say 150k miles of mixed driving. My issue is...

More revisionist history here? The mid-90's C4 that went head to head with the MKIV was still a capable platform and was 300HP, 3300-3400lbs and held its own in most comparos. Now the '97 C5 was ~3200lbs, 345HP and kicked the door in and ran circles around nearly everything in every metric at...

I don't have the metallurgy plug-in installed in my browser so can't say definitively, but those main caps certainly look like cast iron to me. Could also be steel, but impossible to say from the video (same goes for assessing power-holding..). Here is all the B58 tech doc says:

Yoooo...

Ha..!

Whoever has the best DA will be the first to the 10's.

Ah, right.. I had forgotten you couldn't bore/hone those blocks either. I get why OEMs are doing it, but it sucks as an end user that your only options are replace the block or sleeve it, if you have a minor mishap. Once it's sleeved then problem solved but comes with its own set of potential...

Who has sleeved a B58?

Induction Performance 100 octane tune, BL downpipe and drag radials (dyno'd 474WHP and 514WTQ):

Ah, so you've skipped over a few steps in your online playbook and straight to the wacky personal attacks. A clear sign that you have nothing tangible to add on the matter, and now you're prepared to drag this thread into the depths with your BS until it gets moderated. You do recognize this...

Predictable and par for the course with you --- make baseless claim and when called out to defend, vehemently and desperately deflect. If you had any technical insight to share on the matter in defense of your claims then there'd be no reason for you not to. There is a very obvious reason...

Fat powerband. Wonder how much capacity is left in the stock fuel system.

There is no "we" -- I'll pass, thanks. It's your assertion to back up. Considering you took the time to go back and screen shot a 6 month old post to reaffirm your point would leave one to believe you have something worthwhile to share in support of it...?

Yeah? Based on what, exactly? Please be technical and specific. I'll stand firmly with my quoted assessment, considering any possible shred of credibility you might have had with some people has long since been completely eroded. So please, take this opportunity to redeem yourself...

AMS shop car with drag radials and race gas tune.

TRC and Real St. not wasting any time on the good content: I'm not too familiar with Hydra's products, but checking their site the MKV device is actually cheaper than some of the current BMW options, i.e., F8x M3/M4 at $1495. Also reminded how comically expensive Akropovic is... My...

Yep, Jay and the whole crew are a class act and basically the model for how to operate a successful and ethical parts/tuning biz, IMO. He's also just a genuinely nice dude all around.

I just saw this posted on SF: https://www.supraforums.com/threads/mkv-supra-stage-1-and-2-tuning-available-at-real-street-performance.1117590/ Solid gains!

It would be interesting to see the SuperFlow graph with the various correction factors/filters applied. The CF utilized on your graph is definitely the heartbreaker one. I have graphs from them in both "WhlPwr/WhlTrq" and "SAE HP/SAE TQ" both of which are much closer to Dynojet numbers...