Hey Guys:

My dad and I recently purchased an old '86 635 CSi for fun, to modify,and all that jazz.

I would love an ideas on things such as ground effects, engine mods, anything really!

Heres the link:

I cant post the url of the car yet, but I will when I can.

www.bavauto.com - great people large selection of replacement and aftermarket parts


google "korman bmw preformance"

check out these forums too

bigcoupe.com

roadfly.com

enjoy! and welcome!

hurry up and get some posts like 20? i think...so you you can throw up some pictures on here in the introduce yourself thread!!

Thanks Detroit.

The Car comes in from Chicago (I live in Fort Worth, Texas) in a week and a half.

I will definitely post pictures as soon as I can.

What do ya'll think is better for forced induction, a super or a turbo charger?

TCD sells turbo kits and dont require an intercooler and dont require further mods aside from the parts they send you i believe....i havent Fi'd my car yet...i like to do sc, ive heard of one s/c'ed 6 but im not sure where he's at, but yeah turbo seems to be the way to go on this car...just make sure it gets done right....well i guess if you gernade your engine you can pick up another for like 500 bucks, so maybe its not that big of a deal...

im rambleing therefor im tired....

hope this helps

Thanks for the info man.

If I got the one with an intercooler, would I have to get a hood that has an air induction port on it?

No, most people just keep the hoods stock on the car when they do the intercooler. You dont need it, it would be more of a cosmetic thing. Ive seen people cut holes and fins and what not.

The supercharged six was in illinois from what i remember, but he moved recently. He was more active on roadfly and the car was crazy. It cost him a lot of money because of the amount of fabrication, but its what he wanted to do. I think he used an Eaton M90 supercharger, which can be found on 80s thunderbirds i think.

-Jeff

TCD sells turbo kits and dont require an intercooler and dont require further mods aside from the parts they send you i believe...

I am really considering this for my 6. Does anyone know what kind of power gains you can expect on the 3.5l motor with the stage 1 kit?

i would think ~300hp and ~300ftlb would be expected. I know that you can see 350hp and 400ftlb with the stage 2. It all depends on the amount of boost you want to run, 300hp might be more boost than you want to go, but its just an estimate.

-Jeff

How much boost do you think would be needed to acheive 300hp? I don't want anything that going to blow up on me. I would rather just like to have a little bit more power at the wheels of my 6.

How much power does a US Spec 3.5l M30 make exactly? I was thinking around 185hp but I have also heard of people saying that its more like 205-215. Isn't that the specs for the Euro model though?

Just curious. I think having around 250-275hp in my 6 would be more than enough, as it is pretty quick right now.

250+ is possible without FI. You might want to contact TCD for more on the power possible with FI

On the super- vs. turbo-, I'd opt for the one that has a lot of time, resources and research behind it and offers a turnkey solution. That is TCD in a nutshell (plus they are awesome guys).

I'd recommend checking out their website (http://www.turbochargingdynamics.com/) and contacting them. You'll like 'em and their products.

Hmm great ideas so far. Is there any reason or another to get a turbo vs. super?

Thanks for all the help guys

Here is an interesting site to poke around in. They have some interesting articles with good info and some nice performance upgrades:

http://www.metricmechanic.com/catalog/Anatomy-of-2200-3200-3500.php
http://www.metricmechanic.com/catalog/BMW-engine-specs.php

Hmm great ideas so far. Is there any reason or another to get a turbo vs. super?

Not really. The choice is in favor of the turbo in terms of price, reliability, installation, and flexibility. Ive looked into both, and i had to spend a lot more time looking for supercharing info than turbo. There isnt a turn-key kit for supercharging. The guy who did a supercharger for his six contemplated creating a basic kit (basically all the pieces he needed to be fabricated). This fell through because of expense i think. The guys at TCD are great, and have a great product. Some people think its still expensive, but im sure most people couldnt create their own turbo system for the same price or less after all their hours put in to get it to run right. Their are also other options with the turbo. If you can find an M103 745i motor, TCD is working on making that have more power thats reliable. If you can find them used, Callaway and Dinan made kits for the M30. And i know that Cartech made a kit, and are thinking of producing it again. From the last numbers i saw, it is going to be cheaper than TCD, but im sure this is because they are a large production company already, with more systems for a few makes of cars. Id still rather pay for the services TCD has to offer because of how they are specializing a kit for only a few motors for one car make.

Maybe TCD should hire me to give speeches to convince people to go with their product :stickoutt

-Jeff

someone give me 4 grand so i can tcd up my car :help:stickoutt:devillook

No, most people just keep the hoods stock on the car when they do the intercooler. You dont need it, it would be more of a cosmetic thing. Ive seen people cut holes and fins and what not.

The supercharged six was in illinois from what i remember, but he moved recently. He was more active on roadfly and the car was crazy. It cost him a lot of money because of the amount of fabrication, but its what he wanted to do. I think he used an Eaton M90 supercharger, which can be found on 80s thunderbirds i think.

-Jeff

i saw Shawn's 6 in Ohio while it was still in the shop awaiting completion. everything had to be custom made. had to remove the fan for the belt drive. it did look impressive, but if the valve cover needed to come off, it was going to be a real PITA. that's where the super charger was sitting.

This really helps.

Congrats on the purchase

If you have a link to the pics, put the link here, but put a space between in a couple parts of the link (for instance: ht tp://www.635 pic.com) :D and we'll fix it back ourselves.

Enjoy your stay!

You're smart Bimmer

ht tp://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=015&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=250146210153&rd=1 (http://rover.ebay.com/rover/1/711-1751-2978-71/1?AID=5463217&PID=2518995&loc=http%3A%2F%2Fcgi.ebay.com%2Febaymotors%2Fws%2F eBayISAPI.dll%3FViewItem%26ih%3D015%26sspagename%3 DSTRK%253AMEWN%253AIT%26viewitem%3D%26item%3D25014 6210153%26rd%3D1)

Does this one^^ have the good engine?

It will have the 059 ecu, so thats what you want to make things easier to modify later. All the engines are good if you ask me.

You found a good one i might add.

-Jeff

Beautiful car!!

Makes me miss the Bronzit/Black 635CSi I had :(

Thank you! I really do think it's great with all the low miles.

Do ya"ll know of anyone who makes good body kits?

Can't wait to get a turbo in it.

Here's my opinion: you paid a premium price for a low mileage original 635. You should keep it that way to maintain the value of the vehicle.

If you were to add a turbo, body kit, lower the suspension, add tires and wheels, add custom stereo and then repaint: you are looking at adding 10-12k above the purchace price and you still have not touched the maintance items. It sounds as if it was stored and not driven in a while because it is stated that it needs to be picked-up and shipped. So at this point you have invested a tremendous amount in a vehicle that is no longer original and have potentially destroyed the collector status and value of the vehicle.

For the mods that you intend to do; I would think that you would have been better off starting with a lower cost higher mileage but well maintained vehicle. Either way the mods are done, the end product will most likely have the same value.

Now the first thing that I would concentrate on with this is to get the vehicle and inspect it to see what needs to be done to get it in top working order so when you do start modding it, it is usable and reliable. Then establish a working plan on what to do and maybe even create a budget.

Good luck and keep us posted on the progress. There are plenty here that can assist with info, knowledge and experiance.

:)

I fully agree with Alpinacsi.

Alpina

Thanks for the great information.

I appreciate it.

Could some one direct me to a manufacturer of roll bars/ cages for this BMW?

Thanks,
Danny