Piazza_man project

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Nismo
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Post by Nismo »

Piazza_man wrote: Sun Jun 06, 2021 7:26 pm Cheers Tomas, more stuff coming soon. Just haven’t finished it yet. :yawinkle:
Think it's time for a update here mate, don't you think? ;)
ISUZU PIAZZA TURBO -89 | HANDLING BY LOTUS
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Post by Piazza_man »

😆 I’m waiting to get my car back from my dyno tuner maybe next week, then I’ll post up some pics.
Meanwhile here’s a small teaser for now of one of things I was working on. 🤫
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Hmmm candy apple
Hmmm candy apple
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Post by Nismo »

Wooow look at that engine bay!! :cyclops: :cyclopsani: :cyclops:
Looking forward to it!
ISUZU PIAZZA TURBO -89 | HANDLING BY LOTUS
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Post by Piazza_man »

Time for another update, but this time dyno-tuning time.
98RON & 12psi boost:
127.5rwkw @ 5798rpm (about 170kw @ engine)
243.3rwNM @ 4688rpm

I guess I was expecting a little bit more, but in reality the power figure is about right for where I live which is 600meters above sea level, and correlates to Ely’s figure of 136rwkw @ 13psi with his forged engine a few years ago. In his case, and now in my case, the standard intercooler reached it’s peak cooling efficiency, so there was no real point trying to add more boost. In other words, the standard intercooler has to go if I want to make more power. Good news is there’s still plenty of room left in the Supra injectors, which were sitting at about 62% duty cycle, and I have plenty left in boost capability from the GT2860RS turbo.

The power curve (red line) flattened out once the standard intercooler efficiency started peaking out:
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Now I’m on the hunt for a larger intercooler. Bring it on! :supz:
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Post by Piazza_man »

I designed a custom bracket for the new IGN -1A smart ignition coil from diyautotune.com that was installed before the dyno run. The coil packs 103mJ per spark and a maximum current of 19A (81,000 volts).

The bracket is laser cut 4mm mild steel, then powder coated.
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Post by Nismo »

Damn those are nice numbers still! :) Well there's plenty of room for a bigger intercooler in the engine bay so I guess you won't have any problem finding one! Keep it up!
ISUZU PIAZZA TURBO -89 | HANDLING BY LOTUS
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Post by Piazza_man »

Another custom touch that I finished several weeks ago. Been slowly chipping away at the engine bay, and this time I designed another laser-cut stainless steel plaque. I faithfully reproduced the original intercooler sticker in size and font to maintain that original factory look at first glance.
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Re: Piazza_man project

Post by Piazza_man »

Engine bay is nearly to my acceptable standard. Made my own custom 2 part cold air box from aluminium sheet finished off in gloss black. Laser cut custom brushed SS plaque on the air box to tie in with plaque I had made for the intercooler plaque and matt black vinyl graphics to cap it off. I also polished the factory stainless steel heat shield and had the valve cover painted in candy apple red to give some more bling.
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Re: Piazza_man project

Post by Nismo »

That engine bay is impeccable!!! :prayer: :prayer: :prayer:

I'm gonna try to refresh my engine bay this season but I'm not gonna be even close to yours! Splendid job!

//T
ISUZU PIAZZA TURBO -89 | HANDLING BY LOTUS
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Re: Piazza_man project

Post by Piazza_man »

Thanks mate. These engine bays aren’t the prettiest by a long shot with so much clutter of hoses, wires, and pollution gear etc that it makes it so hard to make them look half decent for shows. There’s still a little more work to do, but the many hours of hard work is starting to pay off. But I f money is not an issue, to do the job properly I’d remove the engine to conceal all the wiring and smooth the engine bay and relocate the battery.
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