Author Topic: new update on BMW 318is Turbo  (Read 8181 times)

vatos_p

  • Full Member
  • ***
  • Thank You
  • -Receive: 0
  • Posts: 132
    • View Profile
new update on BMW 318is Turbo
« on: September 13, 2007, 12:26:39 PM »
new pics and dyno results from my car...
just to inform you , my car had a factory exhaust pipe ( changed it because of the noise ) and the ecu gone wrong and did not read the o2 sensor , and went rich on fuel in all revs...( that is a big problem and i am looking for a new ecu )...
anyway , with all that problems see the results...
i am working in 0.5 bar pressure , and stock compression , stock pistons - rods - crank - camshaft ... will be posting video of the dyno run soon...
steer with the rear !!!

nuvolarossa

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 1
  • Posts: 468
    • View Profile
new update on BMW 318is Turbo
« Reply #1 on: September 13, 2007, 12:38:48 PM »
great setup!
wow, that's a great torque!
can you remember me what turbo is?
I see a/r .70 on compressor housing...

vatos_p

  • Full Member
  • ***
  • Thank You
  • -Receive: 0
  • Posts: 132
    • View Profile
new update on BMW 318is Turbo
« Reply #2 on: September 13, 2007, 12:43:15 PM »
garrett GT2540r , A.R. 70 , compressor A.R. 84 Turbine..
steer with the rear !!!

ose30

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 0
  • Posts: 346
    • View Profile
new update on BMW 318is Turbo
« Reply #3 on: September 14, 2007, 01:38:20 AM »
You have plumbed AFM quite interesting way. I suppose you would have better results if you put AFM next to turbos compressor inlet. Thats how AFM's are usually installed on factory built systems which use AFM (Motronic), for example Porsche 944 Turbo.

tjts1

  • Legendary
  • ******
  • Thank You
  • -Receive: 5
  • Posts: 1109
    • View Profile
new update on BMW 318is Turbo
« Reply #4 on: September 14, 2007, 10:21:27 PM »
Looks like a fun setup. Do you have any pics and info on the exhaust manifold? Thanks.
Sold but not forgotten

This is whats wrong with your car.
http://www.m42club.com/forums/showthread.php?t=2742
[/thread]

BrandC

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 0
  • Posts: 306
    • View Profile
new update on BMW 318is Turbo
« Reply #5 on: September 15, 2007, 01:39:53 PM »
Nice coilpack relocation lol.

tjts1

  • Legendary
  • ******
  • Thank You
  • -Receive: 5
  • Posts: 1109
    • View Profile
new update on BMW 318is Turbo
« Reply #6 on: September 15, 2007, 01:48:01 PM »
Quote from: BrandC;33762
Nice coilpack relocation lol.


Its not a bad idea keeping the coils on the cold side of the engine.
Sold but not forgotten

This is whats wrong with your car.
http://www.m42club.com/forums/showthread.php?t=2742
[/thread]

Alibi

  • Guest
new update on BMW 318is Turbo
« Reply #7 on: September 17, 2007, 05:31:19 AM »
Nice nice nice :) ... and 0.5 - 192 hp ... sounds good!

DaveM-sport

  • Jr. Member
  • **
  • Thank You
  • -Receive: 0
  • Posts: 95
    • View Profile
new update on BMW 318is Turbo
« Reply #8 on: September 17, 2007, 06:06:58 AM »
Nice setup, looks very tidy. I like the guages in side the car too. Nicely fiited and the repositioning of the head unit was clever.
I'd like a few pics and some info on the eshaust manifold too if possible

How much power do ye reckon it should make when the Mangement is sorted?

ose30

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 0
  • Posts: 346
    • View Profile
new update on BMW 318is Turbo
« Reply #9 on: September 17, 2007, 03:58:58 PM »
I still think you will get problems with your AFM installation. I suppose it would work better if you install it to turbo's compressor inlet. AFM's flapper will act quite odd way with boosted air.

oldtimer

  • Full Member
  • ***
  • Thank You
  • -Receive: 0
  • Posts: 188
    • View Profile
new update on BMW 318is Turbo
« Reply #10 on: September 17, 2007, 08:38:43 PM »
Do you have any parts list and maybe even a write up on the system.  I had a SC in route to install.  But decided to do more research between the two system Turbo or SC.  I was leaning towards the SC due the maintenance aspect of it and the lag.  Did you have the exhaust manifold custom made or did you do it yourself?

vatos_p

  • Full Member
  • ***
  • Thank You
  • -Receive: 0
  • Posts: 132
    • View Profile
new update on BMW 318is Turbo
« Reply #11 on: September 18, 2007, 02:32:11 AM »
if i change the management into a good working one , i suppose it will go 200+ hp , also about the aft setup , i have read a lot on how an afm works... the afm works with pressure difference , it is not as a butterfly , but it is a 90 degree angle , so when it works vacuum it works like no turbo was instaled , so the car works prefect , and when pressure comes on , it turns on full and sprays full , the rest is on piggyback ecu to prefect the fuel...

if you put it before the turbocharger , with my A.R .70 , with the slightest presure on the throtle petal , the turbine sucks so much air , that the afm will go fully open in 2000 rpm... that is not good , because pressure comes on in 3200 , so from 2000 rpm the ecu is spraying fully but the engine is still running vacuum ( like no turbo was instaled )...Don't forget that my engine setup from factoy has not changed...i have still factory internals with factory compression... so until the pressure comes on , the car works like factory one with 140 hp vaccum...
Also consider this : if you send compressed air into a tube 70mm ( afm ) more air get though , than try to suck air from a 70mm tube ( afm ) ... if you put the afm before turbocharger ( so the turbocharger suchs air through the afm ) then the turbo is chokes , saficated , but if you put it after , it just compresses air though the afm... my car is working prerfectly with this setup 5 months now with no problems... ( exept the latest with the ecu ) ...
But the best setup is , if you can cancel the AFM completly and work with a MAP Sensor ( Manifold Absolute Pressure ) so you don't have anything between the turbo and the throtle body and the ECU calculates Fuel spray with the vacuum or Pressure of the intake manifold... ( costs a lot but does the job )...
Pictures and list of my setup will soon be posted...be pacient..
steer with the rear !!!

nuvolarossa

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 1
  • Posts: 468
    • View Profile
new update on BMW 318is Turbo
« Reply #12 on: September 18, 2007, 04:30:49 AM »
Hi vatos p,
do you have water-cooling lines hooked to the turbo?
Pics where they are taken from the car?
do you have a oil pump? if not there are oil pressure problems to feed the turbo?
 
please answer at least about watercooling lines...
thank you

ose30

  • Sr. Member
  • ****
  • Thank You
  • -Receive: 0
  • Posts: 346
    • View Profile
new update on BMW 318is Turbo
« Reply #13 on: September 19, 2007, 01:37:03 AM »
It's great to hear you have done it better than Bosch engineers... No offense, but i have to disagree what you wrote. Tell me even one factory turbo car with Bosch Motronic & AFM which is configured as your car is?  There is no doupt your system will work, but i suppose it will work even better in the way Bosch designed it. I have played about ten years with Porsche 944 Turbo, which has a factory Motronic & AFM with turbo. I have used few piggypacks with MAF & MAP sensors. Piggypacks i have used are SMT6 & AFM Link. SMT6 works better with MAF sensor. AFM Link has a built in 2,5bar MAP sensor.

vatos_p

  • Full Member
  • ***
  • Thank You
  • -Receive: 0
  • Posts: 132
    • View Profile
about watecooling
« Reply #14 on: September 19, 2007, 01:46:27 AM »
Quote from: nuvolarossa;33903
Hi vatos p,
do you have water-cooling lines hooked to the turbo?
Pics where they are taken from the car?
do you have a oil pump? if not there are oil pressure problems to feed the turbo?
 
please answer at least about watercooling lines...
thank you


no , the turbocharger has watec cooling , but i have not connected it with water lines , and i have no problems...yes the pics are from my car , no oil pump was used , stock one is still running , no pressure problems even with oil cooler and turbocharger connected to the car... ( M42 is a great engine , with a litle help it can get even better !!! )

hope i helped...
steer with the rear !!!