S54 M Coupe 1000whp Build -- Started

[Doulos]

Hey Everyone,

So here we go with the build thread. This is going to be my street monster and occasional track toy. The goal is to see how impractical of a car I can make. So here we go. I know it's not an E46, but hey, it's the same motor.

So I bought this M coupe not all that long ago. Here it is the day I got it.


And I did what you're supposed to do with an M Coupe

Built Motor
Big Fuel System
Huge Intercooler / Piping
Custom Intake Manifold
Full Cage
Custom downpipe & Exhaust.

The goal is 1000whp on the dyno, then setup for drag (2step, flat shift, gear based boost, suspension sorted, slicks and skinnies, etc)

Thoughts? Comments? Criticisms? Suggestions?


============================= Update 2016-01-26 ===========================================
Car is Up and Running around at 610 Wheel on 9lbs and a stock bottom end. Rest of the build is targeted at 1000 to the wheels, but I haven't built the motor yet.

Here's what I wound up with

Turbo: 7275 Precision CEA BB
Intercooler: 6.5" thick Core, Custom Fabricated End tanks for the build by FSR Motorsports
Manifold: FSR S54 Cast Manifold
Management: AEM Infiniti
Intake Manifold: Custom Built Variation on the FSR E46 M3 Turbo Kit Manifold with Larger Runners and a slightly different shape to fit the narrower bay
Intercooler/Intake Piping: Custom 4" everywhere
Exhaust: Turbo back 4" to Dual 3" through 2 Spintech Mufflers
Clutch is a Southbend - I don't know what.
Fuel System is FSR Custom Designed, 2 huge Pumps, inline Filter, etc. etc.
Injectors: 1100 CC

Still On the To-Do List is the built bottom end - Rods, Pistons, Head Studs, and Maybe Mains.


Pictures:

kImne8g.jpg
n4heFHW.jpg
CD0Im3z.jpg

More Pictures: http://imgur.com/a/NORPe

[Z3speed4me]

I wish you luck, definitely something not even close to attempted yet on this chassis.

1000 is not going to be easy. Many cars have tried, only a few have achieved this yet.

[wazzu70]

What turbo? Fiske for wheels.

[futureroadracer]

Ummm.... AWESOME!

[nismoracer65789]

Definitely in for this

and +1 on what turbo

[BavarianLove]

Looks good from here!

[attrack]

Wow that things going to be a brute! This should be interesting.

[SteveTVM3]

Awesome project. I hope you reach your goal!

[Sr20Tz3]

i like the confidence :p
subscribed

[e30polak]

Do you work for FSR, or are you just a customer?

I'm confident they will be able to tune the set-up to the 1000whp limit. I'm guessing you're going to be on pure e-85, which will definitely make the goal more realistic.

However, what turbo is that? Definitely doesn't look like it's big enough to make 1000whp on an s54 though,

Either way, good luck with the project!

[M3 Euro LTW]

Unusual mock-up concept....

Looks E46 to my eyes...

[rossom3]

driven turbo Mcoupes and the chasis flex is annoying.

due to the long nose and structure of the front fenders, m coupes do flex a lot.

I would not spend a dime on raising the power of a m coupe.

[chikinhed]

driven turbo Mcoupes and the chasis flex is annoying.

due to the long nose and structure of the front fenders, m coupes do flex a lot.

I would not spend a dime on raising the power of a m coupe.

A properly built cage should stiffen the chassis.

[itsabimmerthing]

driven turbo Mcoupes and the chasis flex is annoying.

due to the long nose and structure of the front fenders, m coupes do flex a lot.

I would not spend a dime on raising the power of a m coupe.

Plenty of cars have chassis flex with added power, not a reason to be shy about power adders. Re-enforcing a chassis isn't a huge deal. As mentioned, a proper cage will do the trick.
Awesome choice of BMW, this car is going to be dirty lol.

[Doulos]

Hey guys!

Thanks for the interest! I'm excited to see this come together too! Sorry about the delay, let me answer some of your questions!

What turbo?

I'm not going to say exact size yet, because we're going to play with a few different wheel combos in the same housing if we don't make the power goal on the first turbo. Suffice to say it's a Precision CEA Ball Baring Turbo.

i like the confidence :p

Thanks! Hopefully the BMW god's humbling isn't too expensive on the way to the goal

Do you work for FSR, or are you just a customer?

Just a super happy customer. They built my last car and did a fantastic job -- So I asked them to do this and they jumped in both feet.

I'm guessing you're going to be on pure e-85, which will definitely make the goal more realistic.

Car is being setup with the Pro-EFI flex Fuel Sensor. So everything from Pump to E98 should work. I think we'll be on E85 for the Dyno Pulls, but that's up to the shop to figure out what works best.

Unusual mock-up concept....

If you're talking about the Manifold -- It's done. Fully welded, jigged etc.

Looks E46 to my eyes...

These are all photos on my MCoupe. The manifold has been test fit on an E46 However. It does fit. The subframes are just located slightly differently relative to the motor.

I would not spend a dime on raising the power of a m coupe.

To Each his own! =) I love my car and I'm excited for it to be a Monster.

m coupes do flex a lot.

As Mentioned by others. It won't flex once it's caged.


thanks for all the interest guys. I'm pretty excited about this project too. I'll keep you updated! =)

[BadBoostedBmwM3]

I'm anxious to see the results. Good luck!

[flipm3]

Definitely looking forward to this monster build. I still dream of adding a Z3M to my collection.

On another note, I believe your rear spring and spring perch are upside down. On the KW's the spring perch is supposed to be on top. I'm not sure if that effects the progressive spring rate or not, but I thought I would throw it out there

Keep us posted!

[EastBmw]

Excited to see this be created. Cheerio!

[Colby Colbs]

This looks like its gonna be a lot of fun!

[VwAlex]

driven turbo Mcoupes and the chasis flex is annoying.

due to the long nose and structure of the front fenders, m coupes do flex a lot.

I would not spend a dime on raising the power of a m coupe.

It's has a stiffer chassis than any e36.

[mcoupemindy]

driven turbo Mcoupes and the chasis flex is annoying.

due to the long nose and structure of the front fenders, m coupes do flex a lot.

I would not spend a dime on raising the power of a m coupe.

Sigh. Chassis flex?!? - LoL - you are very funny. Even without a cage tying it together, it is still one of the stiffest cars BMW has made to date.

Good luck OP. You have my phone number - feel free to call anytime to bounce ideas, etc.

Jonathan

[B10 BITURBO]

Sigh. Chassis flex?!? - LoL - you are very funny. Even without a cage tying it together, it is still one of the stiffest cars BMW has made to date.



Jonathan

Mayby ,, I dont kbnow the Coupe but Many m-roadsters ,, E36 M3 and E30 with Swapped 300+ S-engines may go through a heavy body reinforce
via the structure of the differental mountings and that led these cars to crack heavily at the rear.. the pointwelding is not holding .. and the consequences are shaky handling and the cars drives horrible,, with fatal results,,

this is very often on cars that have been used a lot in drifting etc etc

[VwAlex]

Mayby ,, I dont kbnow the Coupe but Many m-roadsters ,, E36 M3 and E30 with Swapped 300+ S-engines may go through a heavy body reinforce
via the structure of the differental mountings and that led these cars to crack heavily at the rear.. the pointwelding is not holding .. and the consequences are shaky handling and the cars drives horrible,, with fatal results,,

this is very often on cars that have been used a lot in drifting etc etc

The coupe is close to 3 times stiffer than the roadster. And the subframe issues happens on e36 and e46 as well, don't see too many people not turboing them for that.

[B10 BITURBO]

The coupe is close to 3 times stiffer than the roadster. And the subframe issues happens on e36 and e46 as well, don't see too many people not turboing them for that.

Ok,, i wasnt aware that E46 had the same problems

[mcoupemindy]

Mayby ,, I dont kbnow the Coupe but Many m-roadsters ,, E36 M3 and E30 with Swapped 300+ S-engines may go through a heavy body reinforce
via the structure of the differental mountings and that led these cars to crack heavily at the rear.. the pointwelding is not holding .. and the consequences are shaky handling and the cars drives horrible,, with fatal results,,

this is very often on cars that have been used a lot in drifting etc etc

Comparing the Z3 roadster to the Z3 coupe is like comparing cooked spaghetti to steel I-beam.

There are MANY ways to reinforce the rear of these cars to handle the abuse. I'm pretty sure if I drop my coupe off a cliff, the only thing still in one piece will be trunkfloor reinforcement.

Also consider that TORQUE is really what breaks things (and horsepower is only a measure of sustained torque). To get 1000whp on the S54, you'll only need about 600wtq due to the nuts redline they can run (which is pure awesome). The OP will build a monster, that's a known.