[HeavyMetalRocker]

So I wanted to start a documented build thread just for shits mostly but also in case anyone else was interested in doing something similar! I’ve always been a car and a motorsport enthusiast with dreams of big horsepower and quick acceleration to top speed. However, like many, I came to this platform simply because it was one of the very very few offered in a 6MT RWD. I had no intentions at the time I bought the car to do anything more than an intake, exhaust, and maybe a tune! Also, like many, that quickly turned to downpipes, fmic, and many other things in between. The old mod bug came and bit me in the ass hard! Then following that, I rediscovered my desire to drive fast. In light of all of the progress with fueling and turbo systems on the market my goal is to build the ultimate streetable track car with no exceptions! I’m not going to go joining any circuits or get sponsored or anything like that. I just want a bad ass car that can destroy and dominate the unsuspecting! I plan to use this to document my slow build as I transform the car into something slightly less common than your everyday 335i. I’ll upload any previous pictures of my current mods as they were installed and all of the future mods as they get installed! My current build I consider more of a street romper than any variation of a track beast. Although, it has sent many well respected V8s away with their tails tucked!

Current very very accurate guestimated specs (10/04/2015):
2007 BMW e90 335i 6MT
Weight: 3515lbs
RWHP: 550-600
Pwr/wght: 6.39:1 - 5.86:1

My current build is as follows:
(All modifications were done by me unless noted by an *)

Motiv 750 w/Xona Rotor XR8267 .82 a/r*
HPF Exhaust
VRSF Chargepipe + Tial BOV
CxRacing FMIC with custom hot and cold side plumbing
JB4 G5 ISO w/MHD Pump backend
Performance Oil Cooler & 160 thermostat
Walboro 255 Inline Pump
NGK Plugs gapped to .022
Spec Stage 2+ Clutch and SMFW
DEFIV Lockdown Kit*

StopTech Brakes w/HAWK Ceramic Street/Track Pads
Apex PS-7 Wheels 18x9, 18x10, Conti DW Extreme 245's and 275's

So I've updated a good bit of this for anyone following. With all the advances in the MHD flash side of things I've decided to stick with the JB4/MHD flash for now. I'm only running a mix of e30 on map 3 (20 psi) with the MHD pump flash and this thing is an absolute MONSTER!!! I'd put this up against any hybrid turbo set-up running the same boost. The first three gears are completely useless, third hits as fast and hard as second did on RB's. The track build is still on track and bit by bit will be completed over the next year or so. I'll be figuring out which port injection system I'm going with here soon and that'll go in over winter and then the LSD will go in shortly after. I'm considering calling DSS for some better half shafts as there's nooooo way these stock ones are going to hold up to this power much longer! Spring or summer I'll knock out the twin oil cooler set-up, I've got a little bit of research to do before drawing up what I want to run. Hopefully I'll have time to be without the car over summer and I'll get some rear fender bodywork done to fit at a minimum 305-325's in there. Need some more traction lol. I'm trying to find a company in DFW that will do a weld in half cage but I haven't found one yet so if anyone knows of one hit me up!!! So a side note, the throttle response and spool up with the Motiv 750 kit is insane!!! I can honestly say throttle control is immensely better than RB's were on the JB4! Anyway, I'll probably be swapping out the FMIC for whatever Motiv makes whenever that comes out. I'll also swap the chargepipe out for one that has the c-clip for the throttle body because I'm tired of blowing my old VRSF one off since it's just held on by a shitty little coupler. Anyway, the turbo kit was the biggest piece of down time since I had to wait for it to be built. Everything else should come as I order it and have the time to do the work!

Future even more very very accurate guestimated specs:
2007 BMW e90 335i 6MT
Weight: 3350lbs or lighter
RWHP: 750
Pwr/wght: 4.47:1

Future Mods are:
FuelIT Stage 3
Port Injection System
Motiv Twin Disc Clutch/Spec Stage 3+
Custom Twin Oil Coolers (Mishimoto)
Some LSD (don’t ask me why I’m not already rollin LSD :P)
Suspension
Full sway bars, upper/lower links, arms etc
Custom M3 style widened rearend (likely the front as well)
Recaro Pole Position
Stoptech or Brembo full brake system
And other various weight reduction pieces (carbon fiber hood, trunk, roof if still available etc...)
Probably Michelin Pilot SS for all corners

I’ve put a lot of time into planning out this build and what components to include as to optimize my end goal. I think the thing of most controversy will be the suspension set up. Most people probably think “slam it or get it on the floor with coilovers etc etc”… I’ve done my research and while I want a very capable track car, it still needs to be streetable! A progressive rate system with the other suspension components should make for an extremely competent track beast while not completely sacrificing date night with my girl (lol). Anyway, I just want to share my project and the course of building it with others who enjoy the same thing! I'll keep the above lists updated and then any build updates will be dated and posted below as will pics! ENJOY


Here are a few pics of the rear diff when we put the DEFIV kit on and replaced a half shaft from my trip to the drags lol. The rear of the HPF exhaust system in my opinion is one of the sexiest you can get! I also plan to have a custom section made going straight out of the center section with a GT3 style twin tip to save a few extra pounds out of the rear!

UPDATE 06/27/2015!!!!!!!

Lonnnnnnnnnnnng overdue update!!! Got my Motiv 750 kit on order and should be here towards the beginning of August. Gonna throw in a fresh set of injectors and plugs at the same time. Port injection will come in the winter months as I need to comb through the options and see what will minimize cost but serve the full power potential. I'm going to be sticking with the JB4 for a while simply due to the cost of switching tuning platforms right now is out of my budget. I'd rather spend that money on an LSD lol yeah... don't get me started! Next summer I'll be overhauling the suspension completely and making some permanent rear fender modifications to accommodate some fat ass rubber (295's-315's depending on what I can find). I've already started on some mild weight reduction and will stick with my original ideas about keeping the carpet/stereo/etc... Most weight loss will come from the full seat removal for some carbon shells and probably a daily seat set like Recaro or something similar, in addition full carbon fiber hood and trunk, and if they still do it, the e90 carbon fiber roof to lower the center of gravity (screw sunroofs lol). Anyway, that's all for now, I'll post up some pics in August when I get the Motiv kit in and all that jazz!!! Carry on!!!

UPDATE 08/17/2015!!!!!!!

Motiv kit will be here next week then I'll get things rolling!!! Everything is prepped for install, just need to swap the backend flash out and adjust some tuning for baseline. All the small stuff has been installed, plugs etc... Still haven't moved forward on the clutch, LSD, or upgraded fueling. Might tackle those things over Christmas break if I have time. Right now, the plan is to throw the kit in and just run it around 20'ish psi for the time being and see how everything holds up. Usually these kind of things bring out weaknesses and I'm hoping to catch them at the lower boost levels then address them as needed! Look for some pic updates next week'ish!!!

UPDATE 09/13/2015!!!!!!!

Motiv kit is currently getting installed after a week or so of gathering up a few neglected tid bits. Hopefully should have it rolling by or before next week! Added a few pics before getting things nestled into place. Gotta say, this is one immaculate kit!!! That manifold is absolutely NO JOKE!!!

UPDATE 10/04/2015!!!!!!!

Updated the top section and mod list with updated future mods

[EJ_3]

I like seeing threads like this. I'm also walking the same path. Want to go full racecar, but settling for a streetable track car (for now) since my wife rides along sometime. I'm looking for an e46 M3 to gut out and build for full out race. Good luck with your build and I can't wait to see your car evolve.

[Esveesh]

Nice thread I like seeing the different setups everyone does. No pics?

[HeavyMetalRocker]

Originally Posted by Esveesh

Nice thread I like seeing the different setups everyone does. No pics?

I had to rewrite everything because my computer blue screened last night. That made for a pretty late night but I'll get some posted up today!

[spxxx]

I would do lsd first, IMO this should be done right after tune/fmic

[HeavyMetalRocker]

Originally Posted by spxxx

I would do lsd first, IMO this should be done right after tune/fmic

Not when your shit oem turbos go out lol

[Murph335]

you'll love the HR touring kit! Next time your at the friday night drags hit the scales with you in it! There is a guy named dave with a silver e92 that runs airstrip events in cali 525hp RB meth jb4 3100lbs featured in european car in 2014. its on youtube vs GTRs basically no interior

[robc1976]

Change that wavetrac to a OS Geikon if going with Motiv kit.

[HeavyMetalRocker]

Originally Posted by robc1976

Change that wavetrac to a OS Geikon if going with Motiv kit.

Think the clutch style is the way to go??

[robc1976]

Originally Posted by HeavyMetalRocker

Think the clutch style is the way to go??

wavetrac will not handle over 700...geikon can handle 1000.

[HeavyMetalRocker]

Originally Posted by robc1976

wavetrac will not handle over 700...geikon can handle 1000.

Sold! Now I have to find someone who can do the diff work to get it in there... unless they offer one for the welded pumpkins now?!

[robc1976]

Originally Posted by HeavyMetalRocker

Sold! Now I have to find someone who can do the diff work to get it in there... unless they offer one for the welded pumpkins now?!

vac sells complete units. I am getting the 900hp level 10....may even go to 1000hp.

[just_dirty]

I would leave the power aspect alone and focus on the following: cooling,brakes,suspension. In that order. I would get a decent set of coilovers when you've achived your desired weight so you can get spring rates to match and also camber/caster plates.

[HeavyMetalRocker]

Originally Posted by robc1976

vac sells complete units. I am getting the 900hp level 10....may even go to 1000hp.

I thought the Level 10s weren't living up to the hype on AT though??

[Cloud9blue]

Originally Posted by robc1976

wavetrac will not handle over 700...geikon can handle 1000.

Actually it is the other way around. Helical type lsd is able to handle higher torque figures than clutch type. But clutch type has superior lock response.

Also, OP, if you are really building a track capable car, I would pay more emphasis on suspension, braking, and cooling with your build rather than pouring most of your money in engine mods. There is just no way you can run that sort of power reliably on stock cooling systems. And good coilover, tires, and brakes go a long way.

[HeavyMetalRocker]

Originally Posted by just_dirty

I would leave the power aspect alone and focus on the following: cooling,brakes,suspension. In that order. I would get a decent set of coilovers when you've achived your desired weight so you can get spring rates to match and also camber/caster plates.

When you have so much crap done to your car you tend to forget what's what when blindly typing a list lol. I didn't put it on my current build list... I have stoptech brakes and currently street/track HAWK performance ceramic pads. I also have the performance oil cooler with 160 thermostat. I do plan to switch to a dual unit though but that's not on my main radar as my current cooling setup does very well in the Texas heat. Also, I'll never go with an adjustable coilover suspension unless it's a trailered dedicated track car which this will not be. The power aspect isn't to just have more power... RB's are great for the street and occasional track event. However, they aren't so great for extended abuse. ANY car would do better off using a system that was designed and built from the ground up to maintain the level of performance over a duration and consistently perform.

[HeavyMetalRocker]

Anyway, next up on the mod list is the speeding ticket I got today, no front plate, and a failure to update my license... then it's a Stage 3 FuelIt drop in, a new HPFP, and depending on variables etc either the Burgertuning port system or the Motiv system. I still have a bug in me that wants to see what these RB's can do when fueled!!! LOL

[Island Road]

Originally Posted by Cloud9blue

Actually it is the other way around. Helical type lsd is able to handle higher torque figures than clutch type. But clutch type has superior lock response.

Also, OP, if you are really building a track capable car, I would pay more emphasis on suspension, braking, and cooling with your build rather than pouring most of your money in engine mods. There is just no way you can run that sort of power reliably on stock cooling systems. And good coilover, tires, and brakes go a long way.

Glad somebody brought this up. Not sure were the 700hp figure came about even on their site they don't have a HP limit.

[HeavyMetalRocker]

Originally Posted by Cloud9blue

Actually it is the other way around. Helical type lsd is able to handle higher torque figures than clutch type. But clutch type has superior lock response.

Also, OP, if you are really building a track capable car, I would pay more emphasis on suspension, braking, and cooling with your build rather than pouring most of your money in engine mods. There is just no way you can run that sort of power reliably on stock cooling systems. And good coilover, tires, and brakes go a long way.

I thought I was avoiding the obvious about tires, cooling, and whatnot... I suppose I'll be a bit more meticulous about my postings though! As far as cooling goes now I have the performance cooler with the 160 thermostat. I have quick access to the ER twin oil cooler that I'll probably go with once I get the Motiv kit. The car is being built in all aspects. Not just power or any other individual area. I'm going with the Motiv kit for it's versatility and this is not a strictly circuit build only. I'm building a car capable of spending some serious time on a course, ie; it doesn't crap out after two laps. Not to be misconstrued with serious track time, ie; I'm joining the circuit for weekly races. In addition to track capability I also enjoy roll racing and drags and the occasional trip to Mexico. In terms of power the Motiv kit covers all of my needs in one blow! And again... I hate coilover suspensions, and will never ever use one again on anything less than a fully dedicated track car! I'm not setting out to set any 335i track records. I also don't know how much more attention I could pay to my suspension than what I listed I'm doing to it lol.

[robc1976]

Originally Posted by Cloud9blue

Actually it is the other way around. Helical type lsd is able to handle higher torque figures than clutch type. But clutch type has superior lock response.

Also, OP, if you are really building a track capable car, I would pay more emphasis on suspension, braking, and cooling with your build rather than pouring most of your money in engine mods. There is just no way you can run that sort of power reliably on stock cooling systems. And good coilover, tires, and brakes go a long way.

I just got my info from wavetrac, what would they know? They only designed it

[robc1976]

Originally Posted by Island Road

Glad somebody brought this up. Not sure were the 700hp figure came about even on their site they don't have a HP limit.

directly from wavetrac engineer that I talked to

[whosdady]

Originally Posted by Cloud9blue

Actually it is the other way around. Helical type lsd is able to handle higher torque figures than clutch type. But clutch type has superior lock response.

Also, OP, if you are really building a track capable car, I would pay more emphasis on suspension, braking, and cooling with your build rather than pouring most of your money in engine mods. There is just no way you can run that sort of power reliably on stock cooling systems. And good coilover, tires, and brakes go a long way.

Unfortunately I've had the unique opportunity to have both styles of LSD's in my 335i. Without a question, the Giken is a stronger unit. VAC built both of my LSD's and the Quaife (helical style) lasted six months before it gave out. The Giken on the other hand is still going strong... The main difference between the two are gears vs clutch packs. I think in general, a helical unit maybe considered stronger and always requires less maintenance. However in this comparison, the referenced mechanical lsd (Giken) is more robust and instant. I believe the Giken for our car uses 28 clutch packs.

I should note the Giken coming on more quickly is easily noticed while comparing the two LSD's above.