MyE28.com

Hi everyone. First off I would like to say I have really enjoyed browsing this forum.

After owning it for a year I have decided to put my 1980 635csi to bed. My intent was to autocross the car but a bit of rust and general neglect have set me a long way from this goal. As an alternative I am planning on converting a rust free 87 535i to manual and taking my project up on that car instead. I would go with a 5 speed overdrive but I can't part with the Dog-leg in the 6. Also I have a 745i manifold and turbo I will be mounting up.

I need a couple of tips.
Where would be the best places to put oil lines for the turbo and for the spare oil cooler? (Next time I'm near the car I will inspect the oem cooler points)
Does anyone see an advantage on running more than 1:1 on the RRFPR?
If not, can I pleaaaase delay on buying the wideband air/fuel set up? Dang expensive hobby . . .

You'll probably need a lot more than 1:1 depending on the size of injector you use. I used the BEGi 2025 regulator that uses a needle valve to set rate of gain. I wouldn't use a regulator that was only adjustable by switching out diaphragms. Unless 2:1 or 4:1 was "just right", you'd be out of luck.

You can get a 2025 on ebay for 100-150 in good condition. Thats the only RRFPR I'd use.

I have a Malpassi adjustable on the way. My research was fairly limited and I figured I snagged it for a good price. Also, I've got 25lb injectors ready to go in.

^^^ In hindsight, the regulator may have been one of many in a long list of compulsive purchases

I agree with Dan that you really need an "infinitely" adjustable RRFPR. Having a fixed gain is asking for trouble. Your stock regulator is 1:1, so a 1:1 adjustable reg. won't really do anything other than raise base pressure which likely won't be enough.
As for a wideband, it is highly recommended that it be viewed as one of your most important purchases. You can get the car running and not blow it up without one, but it definitely won't be optimal. Worst case scenario, you kill the engine.

I was crossing my fingers just for my wallet's sake.

No problem, I will most likely get an LC-1 once I save up a little more. I just have to come to terms with not being turbo most of this auto-x season .

edit: I like the LC-1 gauge, but LM-1 is more likely due to being not as flashy and the multiple channels of data.

Don't rush into your turbo biuld. Collect your parts and do it carefully - research what you need and you will save money in the long run. Your wallet will thank you and your car will run better, be more reliable, and be faster with well thought out, well executed mods. It doesn't have to cost a whole lot though. My turbo project turned out very nicely and have a very reasonable sum tied up in mine.
BTW- you should be able to sell that Malpassi pretty easily I would think.

I'll just have to turn over a new leaf then

Can I have a picture of an oil feed line point I can use? Also I may get the LM-1 and would like to see where would be best to collect a channel for engine speed?

I'm somewhat visual and I've been spoiled by the bentley until now.

Alt Rot wrote:I'll just have to turn over a new leaf then

Can I have a picture of an oil feed line point I can use? Also I may get the LM-1 and would like to see where would be best to collect a channel for engine speed?

I'm somewhat visual and I've been spoiled by the bentley until now.

If you just want an oil feed for turbo, tap the oil filter housing. Here is a pic of mine.

It's a -4AN line run to the turbo. I used Shawn D.'sM30 sender install guideto mark my filter housing.