MyE28.com

Since I'm pretty close to getting the truck running properly on grease, it's time to start thinking about FI on the 5er again. With the Dinan kit, the intercooler would require relocating or removing the ABS brain, which I really don't want to do.

Found one of these on ebay...



Should fit fine in front of the radiator behind the kidneys, since I've already removed the AC condenser.

Raj

shit, didn't see RussC's post below...apparently I'm not the first to think of it.

Russ...according to the measurements given in the auctions, the IC will definitely fit with room to spare on an e28 w/o AC condenser.

Raj

Haha,
Should be a fine IC. And should fit easily w/o A/C condensor and fan. Should be ~the same size as the early Dinan units.

I just wonder if I can fit it w/AC?

RussC

Tj knows the measurements for with A/C. I really want to get one in there too.

I know em w/o A/C - that condenser is really in the way

bought the IC...should be here in a week or so.

Now need to figure out which injectors to run...30lb or 36lb? It will be on a Dinan setup with FMU instead of turbotronics and a larger IC using the 059. Plan to run 10-12psi, but want injectors to flow enough for at least 15.

Raj wrote:bought the IC...should be here in a week or so.

Now need to figure out which injectors to run...30lb or 36lb? It will be on a Dinan setup with FMU instead of turbotronics and a larger IC using the 059. Plan to run 10-12psi, but want injectors to flow enough for at least 15.

30lb

Right,
36lb'rs may not adapt properly to the 059 w/o different programming. Do you have the Dinan chip for the kit?

Youll also have to adjust the AFM spring tension properly. I would definately invest in a WBO2. Other wise at the bare minimum a NBO2 and gauge. But with that you'll be guessing at how rich up top.

RussC

30lb

Thanks...I'll be calling you for a set, along with an MSD ignition once I get the plumbing sorted.

36lb'rs may not adapt properly to the 059 w/o different programming. Do you have the Dinan chip for the kit?

Youll also have to adjust the AFM spring tension properly. I would definately invest in a WBO2. Other wise at the bare minimum a NBO2 and gooahj. But with that you'll be guessing at how rich up top.

No chip with the kit that I have. What exactly is a widebad o2 sensor? I am going to have an air/fuel gauge and assumed that I could tune the a/f mixture with the AFM and FMU.

Raj wrote:

36lb'rs may not adapt properly to the 059 w/o different programming. Do you have the Dinan chip for the kit?

Youll also have to adjust the AFM spring tension properly. I would definately invest in a WBO2. Other wise at the bare minimum a NBO2 and gooahj. But with that you'll be guessing at how rich up top.

No chip with the kit that I have. What exactly is a widebad o2 sensor? I am going to have an air/fuel gauge and assumed that I could tune the a/f mixture with the AFM and FMU.

Raj,
You don't know what a wide band O2 is? Whoa. Ok, the wide band are linearized O2 sensors that are temp contorlled and have more sophisticatred electronics to get usable ARs from a linear ouput from the O2. The output from the controller will be from ~1V to ~4V. It will give you a usable AR reading where the old O2s are too non-linear to get a real reading(thats anywhere off stochiometric). See Innovate, PLX, AEM, DynoJet etc.

Yes, with a narrow band O2, you can tune, but getting real ARs in the rich and lean area is next to impossible for anything more than a ball park number. Theres just nothing out there that can measure in the 100ths of a volt and hold temp accurate enough to get a +/-5% with a NBO2.

RussC

I see...

Sounds like a wideband o2 would be a good idea, but I just want to gather all the necessary parts first to get the car running on boost. That, and I'll have to wait until after my smog test in May to start diggin' in.

Got the intercooler today, and the core has a bit less surface area than expected. But it does have huge air passages and proper end tanks, so there should be plenty of flow w/no bottleneck. Seller advertises 1200 cfms with 28% decrease in heat.

It does fit perfectly behind the kidneys with the AC removed.

Nice,
Look forwared to seeing it in the car.

RussC

Russ:
Whereabouts in the Bay are you located again? I'd like to meet up some time and pick your brain a bit to make sure I'm approaching this the right way. And I'm always driving back & forth between Monterey and Walnut Creek..

Pm'd,
Im available, just drop a email when your going to be up. I can make time.

RussC

I'm scoping out this intercooler for my E28 as well. Did you try to install it yet? If so, how did it fit? Is there any room for a wider and/or thicker unit?

Before taking the final measurements for my intercooler search, I plan on slotting the holes or cutting some mounting bracket material off of the AC condensor to move it closer to the radiator by 0.5-1.0inches. That should hopefuly open it up a bit. (I've already removed the AC fan)

Thanks!
Chris

I have not had a chance to fit any of the turbo parts to my car, but that should happen soon thanks to some help from another forum member.

I was originally going to fit it behind the kidneys (no AC parts installed), but then it was brought to my attention that the IC should be mounted lower. There is BARELY enough room for this thing to fit in front of the lower radiator support, and that is with no AC parts installed.

You should easily be able to use a "taller" IC, but there isn't much room left for additional length or thickness without cutting.

Raj wrote:... it was brought to my attention that the IC should be mounted lower.

Why is that? It seems to me that it would encounter cooler air and less debris, being further from the road surface.

Raj,

Nice to hear that you are getting close to getting the project completed.

Eddie