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Meanwhile updating my grey 911 3,6 engine to rsr specs, I bought an adjustable 993 GT2 rear wing to fit my modified 964 body look.









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Old 08-21-2016, 10:30 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #161 (permalink)
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Meanwhile updating some engine parts to green, I am updating also its rear wing setup with new supports: these pictured are still cardboard, but easier to fit when doing design to water cut aluminium ones:









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Last edited by petri; 08-21-2016 at 11:08 PM..
Old 08-21-2016, 10:33 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #162 (permalink)
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I also 'backdated' shifter from my well working Hargett Precision 930 shifter to D-Zug 935 shifter and the experiences have been great so far: this shifter allows more 'forcing' for gentle 930 than Hargett one as if you have unexpected racing situation and you need you trans to act with you immediately. . Great product.

(Old removed setup for last 8 years)


(Old removed setup for last 8 years)


(New setup with D-Zug 935 shifter)


(New setup with D-Zug 935 shifter)


(New setup with D-Zug 935 shifter)


(New setup with D-Zug 935 shifter)
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Old 08-21-2016, 10:38 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #163 (permalink)
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Great to see you back Petri. Always fun to see your updates.

So 935 shifter was great? Really like the look of it
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1979 930: Garret GT35r turbo, EFI, carerra intake, Link EMS, custom GT2 cams, 98mm JE P/C, 964 crank (stroker), custom valves & ported (XtremeCylinderHeads) etc..etc..
1972 914-6 GT replica project
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Last edited by totle; 08-22-2016 at 07:56 AM..
Old 08-22-2016, 05:30 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #164 (permalink)
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Yes Totle, I haven't been away, just haven't published anything about ur continuous 911 driving done all the time with our cars as there hasn't been any other modifications... . D-Zug shifter works great . It is strong and stiff enough for more forcing shiftings, movement of the shifter is just correct: short, but not too short, and it locates well next to your steering wheel. I can see if you are Formula 3 man (some of my friends are), Hargett style short stick fits better to your hand and it works extremely well with 915 transmission as well as with G50/52, but I had some mental issues with it with my 930 trans. You have to be very gentle in some 2to3 and 3to2 shiftings as with stiffer 930 box I sometimes 'over'pulled or pushed the shifters small ball out of its cupholder (in nervous racing situations). Now with D-Zug 935 shifter I don't have this mental problem and I can use some force for making 930 trans work quicker in those mental situations (risky highspeed shifting situations next to track fence or so).
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Last edited by petri; 08-23-2016 at 10:43 PM..
Old 08-23-2016, 10:41 PM
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Cool Petri ! Thanx for sharing
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Old 08-25-2016, 07:19 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #166 (permalink)
 
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Forever project of diffuser is getting further:








This is to be a low short air tray under exhaust manifolds, which doesn't go too far under the engine. The car floor plate system to start coming up from under drivers seat will end to the edge of front cylinder line and around the transmission, to say it ends much higher to engine bay than this low rear diffuser. That will direct plenty of air around exhaust manifold (rsr turbo application) and turbo (standard location) on a top of this diffuser. So I have to work my rear bumper and rear of the engine department much more open (add lots of holes) to allow more air flow through the space between engine and diffuser. I also will leave the space between rear lights completely open and I will move register plate up to rear lid.
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Last edited by petri; 10-09-2016 at 10:52 PM..
Old 10-09-2016, 10:18 PM
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Something like this:



The purpose of rising floor plate is to create more downforce under the front axel and rear diffuser tries to decrease the lift in the rear: I would like to be able to drive in Autobahn and fast tracks without rear wing completely as it disturbs top speed quite much. Also possible additional grip in front hopefully helps with high speed understeer corners: especially in Spa Francorchamps and Nordschleife .
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Last edited by petri; 10-09-2016 at 10:56 PM..
Old 10-09-2016, 10:36 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #168 (permalink)
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I also did some mock up for front corner canard solution. Very modest compared to what I was once dreaming, but more street legal hopefully in Europe.





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Old 10-09-2016, 10:38 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #169 (permalink)
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Referring to my own old sketch (Diffusor bottom plate plans for 911) back in years one slightly updated: the principle idea of rising floor plates towards rear and rear diffuser under it remains:



Back then I was trying to do maximum size diffuser with very narrow air tunnel on top of the diffuser: I had problems to decide what to do with engine fan air coming from up. Now I think the airflow following the floor plate will join under the engine and stay on a top of lower diffuser element.
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Last edited by petri; 10-10-2016 at 01:46 PM..
Old 10-10-2016, 01:43 PM
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This was 962 bottom plate system already more concervative compared to first 956 versions, because of FIA regulation tightened during C-group period).


My already earlier sketched bottom plate system to my green, of which I have already the front splitter, side skirts and now rear diffuser. White erased area will be open for engine and transmission to have "air flush" with the air flowing over the rear diffuser.
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Old 10-12-2016, 09:55 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #171 (permalink)
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Considering air vents for front fender to exit air from front wheel archs, I like the sort of period correct vents of 917, so I wonder if they would do it for me too. Something like this:



Here is enclosed some of my own sketchings with tape and pen:







This would reduce some air pressure from wheel arch, as my underbody air system will increase the amount of air around the wheel...
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Old 10-22-2016, 01:00 PM
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Even if having full winter now in Finland, preparations for becoming seasons are in great phase: engine is done again to zero hours with some modifications (heavier valve springs for better reliability in higher rpm) etc...

Here some pics of last season drives... still street legal (I can drive to track without trailering my car), and with street tyres challenging slick cup cars at least in fast tracks with sheer power and top speed...









Now my kids (4, 5 and 8 years) are that much bigger, that I am expecting to drive full season also in Nurburgring and Spa Francorchamps during this season.
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Old 02-15-2018, 07:39 PM
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i like the intercooler and oil mcoolers.
Old 02-15-2018, 09:31 PM
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I did some prefitting to my 911 3.6 RSRish grey for the new rear bumper, similar to one I developed to my green Strosek RUF BTR...









I also did some modifications to pistons, to make new more aggressive camshafts work when building engine to zero hours...

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Old 02-25-2018, 08:22 AM
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The rear bumper looks great, especially with the rear diffuser project you have going on! Great builds you have going on! Looking forward to more updates!
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Old 02-26-2018, 09:51 AM
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Quote:
The rear bumper looks great, especially with the rear diffuser project you have going on! Great builds you have going on! Looking forward to more updates!
Thanks! I try to keep as period correct formulation in shapes as possible, but still trying to achieve some development in aero for challenging still some new GT3 generation cars properly. I am making everything in grey so, that I can do a backdate to 1974 IROC RSR look (I already have all necessary body parts) when making this car a real classic. But for now it serves as one of my club racing tools as the green does. Green is not able to be backdated completely to original shape but possibly to RUF CTR look if changing front fenders to RUF 993 fenders and changing side skirts and bumpers... But probably not ever . I think I continue its development still in this category of its own...

The engine update of 3.6L grey is in its final stages with a way more RSRish engine parts...
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Old 03-02-2018, 04:49 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #177 (permalink)
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My 964 3.6 RSRish engine is coming along great way:






Engine is coming together...


We painted valve covers to black.


New camshafts with some considerably larger duration etc...


Piston heads were reshaped to accept larger valve movement and longer duration


head canals were slightly modified and cleaned for better flow
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Old 03-06-2018, 04:45 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #178 (permalink)
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As I did buy for me my first 996 RSR C2 996 C2 RSR street - track - rally I did remove my Cobra Misano S leather seats from my grey 911 3.6 because they are more period correct to that 996 project and I did purchase period correct bucket seats to this -77 based 964 RSRish project. I think they do fit nice way with standard door interiors and rollcage etc...







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Old 03-06-2018, 02:36 PM
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964 RSRish engine coming back together... in these pics still with original airbox, as the new MAF package from fvd.de hasn't arrived yet...









Soon we can start to fit it back to my grey -77 and start to design exhaust to fit to RSR headers... . Something like with central exhaust tips, but so, that it would fit with my new rear diffuser. 110dB is going to be enough limited for me, I'd rather prioritize free exhaust flow...

I am going to use this MAF system:





https://www.fvd.net/de-en/FVD11005/fvd-mass-air-flow-meter-performance-kit-964-race-15-to-50-hp-gains.html
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Last edited by petri; 03-19-2018 at 12:06 AM..
Old 03-19-2018, 12:03 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #180 (permalink)
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