I am the owner of M3 GT #111. My car is currently in the UK for an engine rebuild. Please visit my facebook link if you have the time, and do a like on it. I appreciate it.
As I said the engine is toast, there was something that went wrong while tuning or after tuning. But the car will hopefully be as good as before, I do plan on trying to find sponsors for some of the parts missing, since its quite expensive.
But back to the car
When I bought it (Feb 2007) not qute original...
First session of Upgrades was regarding brakes and suspention. The Ceramic Brembos from the McLaren SLR along with a set of H&R coilovers and sway bars + powerflex bushes. To be able to fit the brakes I had to go with 18" wheels, so I bought a set of BBS CH 8.5x18" on all four corners.
I then fitted a set of Toyo R888 semislicks but that forced me to reconsider the seats, so I went for a set of Carbon Fiber version of the Porsche GT3 Aliens.
I craved some more power and sourced a twin turbo kit made by DA-Motorsport in Turkey which a friend had bought but never installed. Needless to say I had to do some slight modifications to the kit. It was installed later.
I also bought a set of BBC CH (forged) much lighter than the CH.
Next up were the adjustable camber plates, along with Powerflex for the front trailing arms
And the Scoprion end can.
I also added the Front Splitter (adjustable GT splitter) that was missing when the car became mine.
This was kind of the end of this chapter. Next up were the power updates...
Early 2008 I started with the install of the Twin Turbo system on stock internals. As I said the system was not a perfect design, but it was designed to run at 8psi, i ran it at 11psi. The exhaust manifolds were terrible, and made a strange engine sound, but they did the job for the time beeing.
I was using 440cc injectors and I flew in a expert tuner to tune the original BOSCH DME. The car drove reliable but soon I started to see pressure in the coolant so I upgraded to a MLS 0.140 plus ARP's.
0-200 run on this setup
M3 Chase on Nurburgring F1 track.
There was still room for improvement.. and actually the engine (piston rings) were starting to show some wear.. so... why not do a fully built bottom end. Engine went out..
bought a set of CP Pistons (8.5:1), some custom made Forged connecting rods, the Walbro 255 and NGK-R 2525-9 plugs. I also got a set of VAC main and rod bearings (coated) and ARP's for the rods.
I also got in contact with a tuner in Sweden where I bought the rods and he had his friend make me a set of Tubular exhaust manifolds.
Somewhere in between I had also bought a SuperSprint De-cat midsection and the OEM X-Brace for the frunt suspention from the Cabrio
Block with pistons, rods and bearings installed, mirror surface on the block ready for the stock thickness MLS.
Head re-mashined, some porting and plolishing along with new copper valve guides.
The JBRacing lightweight flywheel installed. I did not have the block painted or any of the parts specially cleaned. My car is for driving so it does not really bother me.
Engine almost done. Canio (my Italian mechanic) and my Tuner (also a pretty good engineer/mechanic) working on the engine.
Almost done.. This airbox would later explode on the welds..
Exploded intake manifold... gread build quality.
So I did like the guys in Sweden do. I modified the OEM intake for Turbo. Much better quality.
The car was tuned with the old airbox. It made 470hp/560nm at Mantehy Racing in Nurburgring. Manthey is one of the best Porsche racing specialists around. The dyno was made using the old airbox.
The car was running 12psi, there were some problems with boost leakage after I installed the OEM airbox, forgot to put the O-rings on the runners... Still, I went to SPA Francorchamps in May 2009 where the car performed well, lapping a 2:50 which is respectable for a road car. I also had installed a S2.65 differential from a 325TDS and that made the gears very tall. Potential top speed of 340km/h doing 280 in 4th. Surely not optimal for track driving... Still, I had some CSL for Lunch. (min 2:40)
In the lates rebuild I had installed a Gizzmo electronic boostcontroler... that made me a bit greedy so I started pushing up the boost. Going up to 22psi. The AFR's looked ok, and so did the EGT, but something went wrong. The coolant started to pressurise in summer of 2010 so the only option was to rebuild the engine again. This time around I decided to do all the work myself. Keep in mind that I have no mechanical training or experience. I work in Private Banking..
When the engine came apart it was quite obvious that the headgasket was blown... quite badly actually for an MLS. I along with some of my friends started speculating what had gone wrong. Most likely it was due to detonation, which resulted in me beeing to agressive on the boost and the car probably running out fo fuel at the top end since the injectors were only 440cc. Still I was running almost 4.5Bar of fuel pressure.
This time around I decided to go with a STOCK HeadGasket from BMW and I also upgraded to ARP2000 bolts.
Head off and pistons cleaned
It was a strugle to get the head on since I was doing the job alone, I bought an engine crane and that helped.
I also put some thermal insulation on the engine bay.
I also thermal wrapped the downpipes.
Since I had no previous experience the timing of the cams and valve adjustments were a pain in the neck. But I managed.
Almost done.. again
The RC750 injectors went in along with the Moristech Piggyback (installed it myself) and the Knock link Knock detector.
The car started up ! I was pretty happy. Drove it for 3 days and then no boost, and a terrible sound coming from the turbo area. I inspected the engine, found a busted hose from the airbox to the ICV and also I had made a small mistake when installing the Airbox. I had actually managed to clamp the oil feed line to one of the turbos which resulted in oil starvation to it and it was gone....
Pretty depressing, since its not that easy to access a bottom mount twin turbo system. Still, I bought two new GT2252's and re-designed the oil feed system. Intstalled and I had power again.
I re-designed the oil-feed lines and installed two new Garrett's
The car ran great, power was plenty at 14psi (minimum PSI)
I also installed a new water pump, fan-clutch, oil catch can, Denso Iridium plugs, painted the RC's white, and am currently installing a 2.93 Differential which will get the LSD unit from the S2.65.
Other mods I have done/am doing include the seats which I changed to Recaro Pole Position with some custom stiching and painted the BBS RC wheels white.
Engine bay, looking OEM as I want it to look. No fancy stuff showing.
Its been a labour of love and some hate, frustration and enjoyment but it has cost me alot of money. But today I am happy with the car. I have something a bit special, its fast and reliable and I have rebuilt the engine (top end) myself so that gives me more pleasure when I drive it.
There seems to be a problem with hotlinking pictures from my album, so here are some shortcuts.