ETA Turbo Help.

[bigredguy]

An Fmu is a very cheap way of doing it that is not nearly as reliable and the ability to tune is none existent. I looked into it when I was building my turbo setup. All it does is raise the fuel pressure in proportion to boost, yes you can reflash a chip, and get a m30 afm to adjust a/f ratios. By the time you do that the price difference from megasquirt is not much. A good Fmu costs a decent amount.
:tsk:

alright thanks. It definitely sounds like MS would be the best option, especially for reliability. Ill have to look into that and the installation. Is it difficult to install and tune? Also i know there are various models, which one would you recommend for this application?

[TheTacoMan]

alright thanks. It definitely sounds like MS would be the best option, especially for reliability. Ill have to look into that and the installation. Is it difficult to install and tune? Also i know there are various models, which one would you recommend for this application?

Talk to keith/whodwho. Hes the guy for Ms.

[frontin40]

What's the best ratio diff to use in a turbo eta?

[kamotors]

I'd say 2.93-3.25 would work best due to the low revving motor.

[bigredguy]

correct me if I am wrong, but they came stock with a 2.93. So would a LSD have any advantages? If so what cars did the 2.93 LSD come in, because I love my 2.93 gearing.

[TheTacoMan]

Open diffs and turbos dont work well together. Ask me how I know.

[Peattie]

correct me if I am wrong, but they came stock with a 2.93. So would a LSD have any advantages? If so what cars did the 2.93 LSD come in, because I love my 2.93 gearing.

an lsd would be a lot more fun. my 327i turbo had a 2.93 open and I loved the gearing but you couldnt do sweet donuts or take it to drifting events lol

[bigredguy]

thanks for the heads up. Thats something that will probably come in time considering the car is a daily and I will not be drifting or tracking it at all. Is there any 2.93 LSDs? if so what did they come in?

[einstein57]

Cheapest and easiest setup would be to find an m21 manifold and turbo. Same size as that 740 turbo.

[bigredguy]

Cheapest and easiest setup would be to find an m21 manifold and turbo. Same size as that 740 turbo.

awesome thanks alot. do you know the specs off hand of that turbo? Also any recommendations as to what to run for management? Some are set on MS and others say theres other more affordable options that still work well.

[einstein57]

If your mechanically inclined and patient you can build your own ms2 kit for about the same price as a Begi RRFPR and TCD chip.

This is the kit i have

http://www.diyautotune.com/catalog/megasquirtii-programmable-efi-system-pcb30-kit-black-case-p-119.html

[bigredguy]

If your mechanically inclined and patient you can build your own ms2 kit for about the same price as a Begi RRFPR and TCD chip.

This is the kit i have
http://www.diyautotune.com/catalog/m...ase-p-119.html

alright thanks. What all goes into the install of this kit. I would consider myself mechanically inclined, but I definitely wouldnt consider myself patient and electronics and circuit boards and wiring is not my strong suit at all.

[frontin40]

Whats a good turbo friendly cam to use for the 885?

[kamotors]

bimmerheads can get you a regrind dual pattern turbo cam. Thats what I run and it does well although Idle took a very long time to tune and idle seems to have lost quite a bit of vacuum. It really wakes the car up past 5k, My power doesnt even drop off at 7k.

[einstein57]

Cheap tial wastegate

http://www.ebay.com/itm/Tial-38mm-wastegate-/121201804611?pt=Motors_Car_Truck_Parts_Accessories&hash=item1c3830c543&vxp=mtr