Author Topic: 1987 BMW 325is going VEMS, then turbo  (Read 61547 times)

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #60 on: February 07, 2008, 08:18:37 am »
Some pics:

Oil Pan Drain





New Clutch install (Sach 618 Pressure Plate and 6-Puck Unsprung Clutchnet clutch)



Disconnecting Shifter



Transmission wasn't bad at all to get out... (Getting it back in was the problem  :) )



New Throw-Out Bearing



Stock PP and Clutch






1987 BMW 325is
1985 BMW 325e
1990 S13

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #61 on: February 07, 2008, 08:25:06 am »
Started making exhaust, Ben did the fitting and cutting I did the welding. We started off using a hacksaw, that was a pain in the ass, we then stepped up to a side grinder, that didn't make straight cuts, so finally we went out and bought a 14" Chop Saw.

Starting Downpipe


 
Clearance


 
Making Wastgate Dump tubes


 
My first time welding, could be worse...


 
Action Shot!


 


1987 BMW 325is
1985 BMW 325e
1990 S13

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #62 on: February 07, 2008, 08:44:04 am »
Finishing up the downpipe...





Installed!!!



Before I went I took the car down for turbo, I went to 14x16 and hadn't started the car up again since the change. I was almost certain that the car wouldn't start, but it started right up! So whats left is to finish up the wategate dump tubes, tidy up the engine bay a bit (more heat wrap), and finish the exhaust. Some Siemens 63 lb/hr injectors are coming in Friday so I hope to get it ready by then (at least the dump tubes). We will install them and make some brackets to secure the fuel rail and re-tune the car a bit. Super exciting to see a project like this actually hit the road!

My old man seems to think that what will happen is that either im gonna drive it out of the drive way and its going to blow up, or the first time I let her loose I'm gonna fly. Hopefully the only problems I encounter is the absence of traction  ;D
1987 BMW 325is
1985 BMW 325e
1990 S13

Offline rob@vems.co.uk

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #63 on: February 07, 2008, 10:44:27 am »
Nice work!

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #64 on: February 09, 2008, 08:13:17 am »
Ben and I put the two resonators on and took it for a spin tonight, I'm still on stock injectors, although I have my 60 lbers Ben's brother took our tuning laptop for the weekend so thats that. It leaked oil out of our homemade oil fitting for the stock pressure sender, thats just a matter of copper crush washers and more tightening. The coolant coupler for the turbo leaks so maybe some stat o seals or Teflon tape and tightening. I did see some positive pressure and heard the BOV and it sounded great, much better than the Greddy Type-S on my s13. Thats all for now; we need to get the muffler on and finish up the wastgate dump tubes and install injectors and tune. Stay tuned.
1987 BMW 325is
1985 BMW 325e
1990 S13

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #65 on: February 10, 2008, 07:40:55 am »
Saw 10psi of pig rich action today, it was less than glorious. Managed to lean it out to like .74 lamba before the fuel rail popped off, spraying fuel everywhere. Time to fabricate fuel rail brackets  ;D
1987 BMW 325is
1985 BMW 325e
1990 S13

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #66 on: February 12, 2008, 07:32:35 pm »
Ben made some brackets last night, I'm pretty sure the fuel rail isn't going anywhere (hopefully). Got the welding tank filled today and the exhuast will be done tonight. Pics soon...
1987 BMW 325is
1985 BMW 325e
1990 S13

Offline gox

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #67 on: February 14, 2008, 05:05:04 pm »
hey! :) i`m glad you are seeing boost,i should see it to really soon ;) i also ordered 618 plate so i`m waiting it to arrive so i can put the engine in ;)

Good work!
« Last Edit: February 14, 2008, 05:17:35 pm by BMW 325i »
E30 2.7 - VEMS,KKK K27.2,Schrick,1bar

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #68 on: February 17, 2008, 07:22:55 am »
So we pieced together a homemade manual boost controller to up the boost, .8 bar was just too slow. We decided to go to 1 bar. We tuned to .82 lambda. Well the car still felt slow  :-\ So we decided it was time to race against my Nissan. We all figure with its power it is a high 11 second car, so a pretty good benchmark. We did a roll from 20 in second gear. To both Ben and my surprise the BMW just pulls and pulls on the Nissan. We did it again and the result was the same. So we decided to get the Nissan spooled a bit more and rolled from 40. BMW still pulls, especially pas 100 MPH where it just stays in the power band. BMW is planted at speed and quiet. We did a pull the other day for tuning in 5th gear up to 140 without realizing it, felt like 80.

So its really messing with us because its so well behaved and just feels slow. I guess its a good tune and very smooth power delivery because even with 205 series tires traction in second isn't an issue. The Nissan was dyno'ed at like 340whp so we estimate maybe 360hp? from the BMW.

Waiting on ARP Head studs. Going to 1.4 bar.
1987 BMW 325is
1985 BMW 325e
1990 S13

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #69 on: February 23, 2008, 01:37:33 am »
hey Ben, will you count me in?
1987 BMW 325is
1985 BMW 325e
1990 S13

Offline gox

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #70 on: February 23, 2008, 10:03:48 am »

Waiting on ARP Head studs. Going to 1.4 bar.

 :o

cant wait to see dyno graph!

:)
GW
E30 2.7 - VEMS,KKK K27.2,Schrick,1bar

Offline BenFenner

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #71 on: February 23, 2008, 06:43:56 pm »
hey Ben, will you count me in?

Sure thing Dan: http://www.youtube.com/watch?v=aFT4UBlmXJA


We tried to up the boost to 1.4 bar last night and hit the limit of the stock ignition system at 205 kPa so we've got 3 MSD coils on the way.
1994 Black SE-R (VEMS, going turbo)
1994 Black SE-R (with sunroof)

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #72 on: February 25, 2008, 12:37:47 am »
lulz Ben. Seriously though, any of you guys run CDI, have any suggestions for boxes?
1987 BMW 325is
1985 BMW 325e
1990 S13

Offline rob@vems.co.uk

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #73 on: February 25, 2008, 11:48:46 am »
MSD DIS-4 (not the HO model unless you want to experiment) and run two of the four channels.

Rob

Offline danmartin

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Re: 1987 BMW 325is going VEMS, then turbo
« Reply #74 on: February 26, 2008, 08:37:21 am »
Thanks Rob, but do you mean 3 channels? Also alot of the e30tech guys are saying that wasted spark will get me to over 1000 hp, but I was under the impression that CDI is needed anything past 600hp or so, whats your opinion/experience?
1987 BMW 325is
1985 BMW 325e
1990 S13