Motorhead...Interesting to note that the 991S engine plus performance upgrades fitted into the Cayman engine bay without difficulty. I wonder why Preuninger reckoned that modifications were required during GT4 development?
MotorheadHave you kept your original engine or sold it on?
MotorheadHow much additional camber adjustment do the Powerflex bushes provide? Have you left the rear brakes standard?
ralphmusicMotorhead...Interesting to note that the 991S engine plus performance upgrades fitted into the Cayman engine bay without difficulty. I wonder why Preuninger reckoned that modifications were required during GT4 development?Jeff as the GT4 has a different rear suspension it may be that this presented different challengesMotorheadHave you kept your original engine or sold it on?It will be sold in Germany to a race teamMotorheadHow much additional camber adjustment do the Powerflex bushes provide? Have you left the rear brakes standard?Powerflex effect is less than claimed so far (having another geo soon) and rears are standard but will probably go for 325mm Girodisk upgrade when disks need replacing - I currently get through rear pads quickly but the disks seem to taking a while to wear out.
Buddy...did you consider turbo or supercharging of the 3.4? Just curious as there have been some conversions available and wondered what your investigations had turned up such as possible negatives to that route.....
MotorheadSounds like a very expensive way to create a GT4 look-alike Ralph.
MotorheadSVP in Droitwich have also got into the act and have also been developing both 3.7-litre and 3.9-litre engine conversions [ http://www.specialistvehiclepreparations.com/blog/ ]. They've even developed a supercharged car for a champion hillclimb driver which includes a Sadev sequential transmission.
MotorheadRalph, Any idea how much extra camber change the Powerflex TCA inner bushes provide for the front suspension? I suppose the next step would be to upgrade to adjustable length TCAs like those used on the GT3/4 which I presume will fit without modifying the front hubs, although I seem to recall that the GT4 uses the 991 Turbo hubs. I assume that the 991S 6-pot brake calipers and discs didn't require any hub modifications. It's a pity there isn't much scope for rear suspension camber adjustability. Jeff
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