Alright folks, I’ve finally been cyber bullied into making a build thread.
I come from the land of E30’s which are fun but the chassis has its limits, and the prices on parts are starting to skyrocket. I decided it was best to cut my losses, sell the e30 stash and allocate those funds to a build worth the time and effort. I made a promise to myself I’d do everything possible to make this build a “no expenses spared” project with a goal of 700hp+. The plan is to overbuild for power, not build up to my power goals.
08/03 135i w/ M Package
Apex Arc… not sure what overrated style it is... 8’s?
The rig sat for nearly two years before I pulled the trigger on this project. After replacing the water pump she started right up without a hiccup. The car had been parked with a full tank of gas which didn’t seem to oxidize, or go bad. I was a bit worried but ran the full tank through it without issue. I did this knowing that I’ll be replacing the entire fueling system. The paint is shot in a few areas, but the unibody is pretty much dent free. Interior is "Aged" Coral red.
Stock rotating assembly, and valve train
X2 Spare N54 longblocks (just in case)
Head ports plugged
New HPFP (To be installed)
Index 12 Injectors (to be Installed)
New Precision coils (to be installed)
New spark Plugs (To be installed)
New NGK 02 sensors
New OFHG Seals
New valve cover gasket
New oil pan gasket
New chain tensioner
New water pump
New 335D reservoir
New CSF Radiator
New Map sensor 3.5
OX Werks crank seal protector
Homemade crank capture bolt tabs
Stock 6hp21 + Spare
I acquired a spare transmission recently and will take a whack at building it myself. Worst thing that can go wrong is the thing blows up, and I waste some time and money. Boohoo.
Choosing a differential was disappointing at first because I had no interest in using a Torsen style differential, or any gear/vicious driven for that matter. So after a few days looking at a clean credit card I pulled the trigger on a clutch based differential. Diffsonline, although spendy have some killer options for those looking for a PROPER LSD. These guys build differentials for a multitude of GT teams, along with countless high abuse builds.
35/60 Custom Ramps
Polished ring, and pinion
I went with a SpeedTech bottom mount kit spinning the ever so popular 6266 gen2 BB. I ordered the kit with a black ceramic coating, and some PCV hoses to button up that portion of the build. The ordering process is straight forward, and Jeff treats you like one of his own when it comes to any kit related questions. I went with this specific bottom mount kit because it's one of few that utilize separate runners until reaching the T4 flange, rather than being a "Log style" manifold like most companies.
I just finished the installation of this kit a few days ago and it went incredibly smooth! I did the job on jack stands, and as long as you drop the subframe to its lowest point and raise the engine to its highest point with the support bar, you have ample clearance for turbo/manifold installation. The biggest inconvenience I had was the accessibility to some of the manifold bolts. I had to use a combination of 1/4 drive, and small open-end wrenches to fully tighten the few. I also had to cut down the water pump intake hose quite a bit as mentioned in the manual. The kit is very well organized in sealed bags and labeled.
They say Thai Ming is an ancient art, and that’s exactly what happened with my fueling plans. I had purchased everything for port injection ie; AIC Controller, 900cc injectors, Sharp Customs intake. About three weeks later we all caught wind of some weird overdrive pump, and I didn’t think much of it. Now I sit here a victim of my own curiosity holding a Spool Performance overdrive pump. So now I get to sell the other stuff! I’ll be using the Sharp customs intake and perhaps use the ports for a different kind of supplemental fueling later.
Custom Dual Bosch044 LPFP pinned with OEM connectors.
Motiv Flex Fuel controller
GM Flex Fuel sensor
Spool Performance Overdrive pump
Parker 3/8 e85 friendly fuel line
E85Freaks 5-micron fuel filter
Holley Hydramat (I recommend this to all Bucketless user's.)
GFB G-force 3 EBC
4 port mac setup
PSP 900 Intercooler
VRSF 335D chargepipe
Sharp Customs Intake