My friend stopped collecting receipts at $145K back in mid nineties.
After that, it came Quaife 6sp sequential (total junk), a few different clutches, the AP Brakes, center lock wheel conversion, Sparco CF seats, RBT ZF 25DS-2 5-speed manual transaxle (16,000) with BMW M1 CWP+LSD and shafts, new interior ($7,000), minor paint work ($3,500), the upgraded charge cooler and radiators, two more steering wheels (Sparco - pretty, great grip but too small and another Momo which is the right size but lacks all of the qualities of the Sparco), new ID 1000 injectors, etc. etc.
Power is in the 450+HP range, maybe 475 but it's limited by the GT3071R turbo.
In 1996, fitted Sport 300 intake valves and the ID of the intake seats were opened up to take advantage of the larger valve area. The seats were ground to 3 angles.
When the motor was first built with old T3/T4 hybrid turbo, factory chargecooler and OEM wastegate the motor produced 415hp and 368 ft-lbs on Hasselgren racing engines dyno at roughly 18psi of boost running through the stock cat, but no pre-cat.
Since then many improvements have been made. Mapping refinements, a knock retard system, an electric charge cooler pump, higher fuel pressure, a GT3071R turbo, a Random Technologies metal matrix race cat, a Tial wastegate and it now runs 22 psi. It now also has an Aquamist water injection system running a 50/50 mix of methanol and distilled water, injecting 500cc/min with the water injection also controlled by the ECU. In that guise it was run on a chassis dyno, making 450 crank hp and 400 ft-lbs. Turbo flows about 45lbs/hr.
Recent installation includes a custom built charge cooler with 3x the OEM core volume, and much less restrictive on both the air and water sides 9" x 33" Ron Davis Racing custom charge cooler radiator with a 1.25" core and 2" end tanks, two more electric charge cooler pumps to boost flow and a 21/4" core alloy radiator from Wizard.
Everybody has been very impressed with a ride. It takes a little seat time to get used to it. It'll be a very different driving experience to a V8, more like a F40, very visceral.
Folks who have driven a Porsche Carrera GT, thought that, at least up to 120mph, this car was comparably as quick. It won't do 200mph and probably is slower above 140mph, but it also costs 1/10th the going price for the Porsches ($540K to almost $900K).
Porsche Carrera GT in Cars & Trucks | eBay
Attached mod sheet was updated 2 years ago. Since then, the serpentine belt conversion and Denso lightweight alternator were added.
Motor still has the Bosch 351 injectors, but I have a set of the ID1000's, which are not installed yet. While there was a lot of weight stripped, ZF-DS25 transaxle, chargecooler, radiator and plumbing, water injection, etc. added some back. The S4's are close to 2900lbs. This car was built with a target of 2400-2500lbs.
The overall chassis mileage is about 25K with perhaps 15k on the motor post rebuild. The transaxle and clutch have around 7 or 8K miles as do the brakes. The wheels were custom made by Kodiak Motorsports; they're impeccable, 8.5" x 17" F and 11" x 17" rear. The tires are Nitto NT01 DOT race rubber. The rears have 5K miles and are half worn.
The car needs to be owned by someone prepared to maintain it himself, but it's far more reliable than a stocker and certainly it is the nicest and fastest G car in existence. That being said, it's a real hardcore car - no radio or A/C and a minimal heater, which does a good enough job down to 40F or so.
$200K includes the development costs, like the Quaife box which was over $15k (junk!), various break systems the Sport 300 transaxle with LSD which I also gave a ghost, 8 clutches, 9 turbos, etc. There's probably "only" $150K invested in the car as it stands, but that's excluding several thousand man hours at zero cost plus a great many parts purchased new over the past 20 years for much less than they could be had today, if you could even find them.
If interested, please PM me for details.
After that, it came Quaife 6sp sequential (total junk), a few different clutches, the AP Brakes, center lock wheel conversion, Sparco CF seats, RBT ZF 25DS-2 5-speed manual transaxle (16,000) with BMW M1 CWP+LSD and shafts, new interior ($7,000), minor paint work ($3,500), the upgraded charge cooler and radiators, two more steering wheels (Sparco - pretty, great grip but too small and another Momo which is the right size but lacks all of the qualities of the Sparco), new ID 1000 injectors, etc. etc.
Power is in the 450+HP range, maybe 475 but it's limited by the GT3071R turbo.
In 1996, fitted Sport 300 intake valves and the ID of the intake seats were opened up to take advantage of the larger valve area. The seats were ground to 3 angles.
When the motor was first built with old T3/T4 hybrid turbo, factory chargecooler and OEM wastegate the motor produced 415hp and 368 ft-lbs on Hasselgren racing engines dyno at roughly 18psi of boost running through the stock cat, but no pre-cat.
Since then many improvements have been made. Mapping refinements, a knock retard system, an electric charge cooler pump, higher fuel pressure, a GT3071R turbo, a Random Technologies metal matrix race cat, a Tial wastegate and it now runs 22 psi. It now also has an Aquamist water injection system running a 50/50 mix of methanol and distilled water, injecting 500cc/min with the water injection also controlled by the ECU. In that guise it was run on a chassis dyno, making 450 crank hp and 400 ft-lbs. Turbo flows about 45lbs/hr.
Recent installation includes a custom built charge cooler with 3x the OEM core volume, and much less restrictive on both the air and water sides 9" x 33" Ron Davis Racing custom charge cooler radiator with a 1.25" core and 2" end tanks, two more electric charge cooler pumps to boost flow and a 21/4" core alloy radiator from Wizard.
Everybody has been very impressed with a ride. It takes a little seat time to get used to it. It'll be a very different driving experience to a V8, more like a F40, very visceral.
Folks who have driven a Porsche Carrera GT, thought that, at least up to 120mph, this car was comparably as quick. It won't do 200mph and probably is slower above 140mph, but it also costs 1/10th the going price for the Porsches ($540K to almost $900K).
Porsche Carrera GT in Cars & Trucks | eBay
Attached mod sheet was updated 2 years ago. Since then, the serpentine belt conversion and Denso lightweight alternator were added.
Motor still has the Bosch 351 injectors, but I have a set of the ID1000's, which are not installed yet. While there was a lot of weight stripped, ZF-DS25 transaxle, chargecooler, radiator and plumbing, water injection, etc. added some back. The S4's are close to 2900lbs. This car was built with a target of 2400-2500lbs.
The overall chassis mileage is about 25K with perhaps 15k on the motor post rebuild. The transaxle and clutch have around 7 or 8K miles as do the brakes. The wheels were custom made by Kodiak Motorsports; they're impeccable, 8.5" x 17" F and 11" x 17" rear. The tires are Nitto NT01 DOT race rubber. The rears have 5K miles and are half worn.
The car needs to be owned by someone prepared to maintain it himself, but it's far more reliable than a stocker and certainly it is the nicest and fastest G car in existence. That being said, it's a real hardcore car - no radio or A/C and a minimal heater, which does a good enough job down to 40F or so.
$200K includes the development costs, like the Quaife box which was over $15k (junk!), various break systems the Sport 300 transaxle with LSD which I also gave a ghost, 8 clutches, 9 turbos, etc. There's probably "only" $150K invested in the car as it stands, but that's excluding several thousand man hours at zero cost plus a great many parts purchased new over the past 20 years for much less than they could be had today, if you could even find them.
If interested, please PM me for details.