Who here has added forced induction to a car?

[A930Rocket]

Originally Posted by tdw28210

These guys have a good reputation amongst the local BMW crowd. Pretty sure they have a dyno on site. Just outside of Charlotte.

https://cesmotorsport.com/

Thanks. I looked at their website last night and it doesn’t say E46 non M’s for parts, but I’ll give them a call today. Surely they tune them though...

[cockerpunk]

Originally Posted by A930Rocket

How many laps can you get out of one bottle of nitrous?

zero, cause no tech inspector would let you on track with one.

[slow&rusty]

Timely thread.

I have an '86 6-series BMW that I want to play around with and strap a turbo to. It currently has 200hp and feels lethargic, so it will be my new science project.

I am currently piecing together the turbo kit. For piece of mind, I will be pulling the head, adding a metal head gasket and ARP studs and it will require a full engine management system, which will be the most challenging part of the installation, but needed to add fuel and manage timing and of course detonation.

I am only looking for 8-10psi to prevent the engine from becoming a trajectory and keeping it reliable on pump gas.

I am hoping by the end of summer, it will be done.

[A930Rocket]

Originally Posted by slow&rusty

Timely thread.

I have an '86 6-series BMW that I want to play around with and strap a turbo to. It currently has 200hp and feels lethargic, so it will be my new science project.

I am currently piecing together the turbo kit. For piece of mind, I will be pulling the head, adding a metal head gasket and ARP studs and it will require a full engine management system, which will be the most challenging part of the installation, but needed to add fuel and manage timing and of course detonation.

I am only looking for 8-10psi to prevent the engine from becoming a trajectory and keeping it reliable on pump gas.

I am hoping by the end of summer, it will be done.

I thought about a turbo, but haven’t seen (or found) much information for the E46. Also, it seems more complicated than a SC “kit” sold by Turner or Bimmerworld.

[Arizona_928]

Buy a ls adapter put in a cammed 5.3 truck engine. Would be roughly the same costs

[asphaltgambler]

So yes it seems there are but a few centrifugal super charger kits out there, not much else for your application. Good news is they are very efficient when used with a properly sized, even oversized intercooler. Then it all comes down to fuel system upgrades and DME mapping.

[TCracingCA]

I can sell you a drawing to get 2.9 additional Porsche 911 horsepower from a Home Depot weedeater!

[GH85Carrera]

You already know it is not just adding HP to the engine, it adds a lot of heat. More HP equals more heat always, it is a law of physics. You will need more cooling, and likely bigger brakes. Transmissions don't like the added HP and the bearing will often fail.

One of my buddies swapped in a Buick Turbo Grand National engine into his El Camino. That part was easy, but he had to build a bigger transmission cross member, change the transmission to a custom built unit to handle the HP, and then a Ford 9 inch rear end, and then box the chassis, and a much bigger radiator. When he was done he had spent more than just buying a turbo charged car. He could do 11 second 1/4 mile runs on slicks, but he had a car he had to basically give away for 1/10th what it cost him to build.

A different friend started with a Subaru WRX and turned it into a very uncomfortable track only car that almost always broke. With all the upgrades he admitted he could have bought a used 911 GT3 and just drive to the track, and drive home after a day of running in a faster car.

I know it is not just the money, it is the project itself that is the fun. Enjoy what your end up with and have fun.

I was amazed how many production 11 second 1/4 mile cars are sold.

https://www.autosnout.com/11-Seconds-Quarter-Mile-Production-Cars-List.php

Lots of those are totally out of reach money wise for most people.

[Yorkie]

Also think about the drive train. I know it’s not in the same league but my Series 2 Land Rover had its anemic 55hp engine replaced with a modern 200tdi turbo and it breaks halfshafts if driven by an idiot - me. Apparently, Land Rover deliberately made the shafts weak so they can be replaced in the field but something to consider.

[bleucamaro]

I supercharged my old 944S2. It was a 'kit' consisting of an Eaton M90 supercharger, intake manifold, intake plumbing, bypass valve, and some crap electronics I threw away and installed a piggyback to adjust fuel & spark timing and convert to MAP. Being non-intercooled, I ran a larger pulley to reduce boost to 7psi.

It all cost me about $4k, 15 years ago. The power boost was OK, but a mildly tuned 951 was still faster. So, overall not worth it.

If I were in your shoes, I'd look at an LS swap. If that's absolutely out, then turbocharge with intercooler. I think both will get you a better torque curve than centrifugal blower.

[GH85Carrera]

The LS swap is the cheapest option on many occasions. Lots of torque and HP and parts are cheap and everywhere and the options pretty much unlimited. Even cheaper, go for an old school Chevy small block 350 with aluminum heads, and a decent cam and get 450 HP from a old carburetor.

[A930Rocket]

If I went with any V8, I’d be looking at the cooling system, brakes, transmission, differential and axles. That’s obviously a lot more than I want to do. The two superchargers that I’ve been looking at, have low boost, maybe five or six psi. It comes with the modified tune, larger injectors., etc.

After the FI, I would be Methanol/water injection and or an intercooler.

I can buy something with a bigger motor and faster, but as mentioned, I’d like doing a project and researching what I can do. Keeps me busy on the weekends.

[Jeff Alton]

Careful what a sales team may have to say. They are owned by the same people that bought Pelican. They may say you "don't need an intercooler" because they don't have a system available....

Or maybe they do....

Cheers

[Coverman]

Back in about 1970 I fitted a supercharger kit to my Triumph Herald. The long stroke engine loved it, the bottom to mid range torque increase accelarated the car at about the same rate as my friend's Cortina GT, so I was a happy 21 year old.

[asphaltgambler]

Again, centrifugal supercharger kits have been used in BMW's over the years, with good success and W/O major upgrades to everything else. An intercooler is essential. It's a matter of whose kit to use.

[asphaltgambler]

Hm

[unclebilly]

I put a TRD supercharger on my wife’s Lexus LX450. Simple job.

[A930Rocket]

Originally Posted by Jeff Alton

Careful what a sales team may have to say. They are owned by the same people that bought Pelican. They may say you "don't need an intercooler" because they don't have a system available....

Or maybe they do....

Cheers

I agree. Upon their recommendation, I bought a special transmission crossmember and motor/transmission mounts to accommodate the Magnaflow Spec E46 exhaust I installed with the Active Autowerkes headers. Neither one was needed. They are being returned.

[Joe Bob]

I had a Paxton on a Dodge truck, 360 CI. Rajay on a Type I VW. OEM turbo on a Volvo. All went like stink.

Sammy put one on his SC.

[red-beard]

Originally Posted by dad911

eRAM?

Obligatory picture