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^^^Front splitter is done locally by a guy who fabricates CF parts for all kinds of cars, hobby, race, rally & track. He made a mould by mixing his previous project and my dp Motorsport's partly destroyed splitter to get fitment right. It is vacuum bagged, oven dried with foam core and continues to front axle. So the whole front underside is flat. Rest of underside is covered with 997 GT3 parts, so the flatness continues to rear axle. The splitter is bolted to frunk floor and is so stiff, that I can stand on it.
I've been busy with other things, but something has happened during the winter. Pics below.
These replaced previous VTGs.
"K26-2970MXB/(K24)10.81GAAXK":
Compressor: Housing K26 with 51.56mm in/73.66mm ex, 7+7 blade, M- geometry wheel
Turbine: Housing K24-10.81 (=993 turbo flanges, internal wastegate), K26 contour 1 wheel, 64.4mm in/54.5mm ex.
CHRA: 10mm axle, oil cooled.
1bar Wastegate actuators Maybe a bit oldfashioned, but as they were unused and I got them cheap in a trade, why not to use...? Some fabrication was required because of 993 style flanges
Powdercoated rear subframes. Front was done too.
Shiny nuts & bolts
Ported heads and Intake Manifold. Heads were ported already few years back. They flow now IN 279 CFM w/11mm lift / EX 255 CFM w/10mm lift @28" H2O.
Porting the Intake Manifold increased the flow by 10%, matching now heads and Intake Distributor.
Relocated oil pressure sensor
Reason for porting and relocating the oil pressure sensor. These babies flow 298/296/297 CFM @ 28"H2O, measured with that Intake Distributor, do88's Intermediate Piece, 82mm TB and a silicone coupler in front of the TB.
Engine almost ready for installation. New 100cpi HJS cats barely visible
Water injection stuff relocated to upholstered frunk
What you have accomplished here is just amazing! Incredible job! Would love to see your dyno plots!
WRT the oil pressure sender. I left the OEM arrangement in place and installed a Bosch pressure / temperature sensor there and tied it into the AIM system.
What you have accomplished here is just amazing! Incredible job! Would love to see your dyno plots!
WRT the oil pressure sender. I left the OEM arrangement in place and installed a Bosch pressure / temperature sensor there and tied it into the AIM system.
Ray
Thanks Ray!
I will post some numbers when the is in one piece, at the moment engine is still on the floor. I must do some tuning for example with boost control before dyno runs. But that's not a problem. BTW, I have a fuel pressure sensor on my AEM FPR, connected to DL RT1.
Few more pics about the interior and some.
Looks great Pete! Congrats. Out of curiosity, what made you switch from the VTGs to the K24s? I bet you're going to have a better top end along with lower IATs by freeing up the hot side. Looking forward to the dyno. Cheers!
Looks great Pete! Congrats. Out of curiosity, what made you switch from the VTGs to the K24s? I bet you're going to have a better top end along with lower IATs by freeing up the hot side. Looking forward to the dyno. Cheers!
Thanks John! IAT was/is the main reason for the change. There's limited flow to intercoolers, so I need to use all tricks to lower IAT. My VTGs were .1, ie with smallest hotsides and when pushed generate a lot of heat. I'll loose some low end power, but will gain a lot to top.
I've been busy with work, commuting every other week for 2 hours in a plane and with that Intake Distributor project, so working with the car has been on the hold. Just one thing has been done, namely new wheels:
BBS CH-R: 10x19" et38 & 12x19" et45 in Titanium
Car's hibernating at friend's storage, as it is also for sale. This way my own garage is available for other use, like fixing wife's daily and daughters' bikes...
A new project emerged when I found out the the guy (JTK Composites, jarnokauppila@IG) that made CF parts for my car started to fabricate turbofans. I have no use for them, but a set of Manthey Racing style Aerodiscs would be nice to have. To make a long story short, here's the first set:
They were ready on Thursday evening and on Saturday my car was at Jarno's stand at a local car show, Fitted Fest '23. As I wrote, it is the first set. Next ones will have shorter locking mechanism and a safety pin in place of safety wire. We'll do next discs for some other BBS CH-R (Porsche fitment) sizes. They will get a thread of their own and will be available from my webshop later.
Some other pics of my car from the show:
Althoug most of the cars were in Tuning category, both Euro and JDM, there were many Porsches too. Maybe I'll post some pics of those too, if I have time in near future. Anyway IG: cdlc.co and fittedfest / fittedfest23 will cover a lot.
The aerodiscs on the rear wheels reduce turbulence at the rear and have a positive effect on aerodynamic efficiency, allowing the rear wing to be run with less Angle of Attack and thus producing less drag with similar downforce.
Material for discs is vacuum bagged and oven cured carbon fiber, either wowen or forged. Center bolt -styled attachment parts are CNC-milled, anodized aluminium and safety pins stainless steel. Center bolts on pics of my car are v1.2 prototypes. Threads are left and right side specific, safety pins are just for, well, safety. All parts are made in Finland by JTK Composites.
09-09-2021, 12:29 AM
