V2Rocket

My VEMS, fully configured and built to plug into my car's DME harness plug, along with some other extra bits and including a base 944 tune and endless tuning help, came in at about $1200 delivered to me. The only part I need to source to install it, is a 2-wire ISV.

I'll run it in auto-tune for fueling adjustments for a while to get it really working well. I'll adjust timing on the dyno if desired.

shortyboy

What options did you get? etc, bluetooth for android connectivity?wasted spark?boost control?

V2Rocket

No, it's a Plug and Play so as it ships it is designed for stock 944 ignition/fuel injection system...those things can be changed later with further modification.

I believe Boost control comes with VEMS but it's not something I've looked into as I don't have a turbo.

The extra bits I got were added wires and stuff since my car is an early NA and doesn't have ISV plug and some other stuff.

Aivar88

V2Rocket, i paid something similar for vems pnp with bd, wbo2, afm delete(replacement pipes with MAP sensor, new tps (stock tps will not work), also for cat installation and weldings. (cat i bought separately myself) and full conf and dyno hours. plus Raceboy comes by if something is needed to adjust, tune whatsoever.. but then again we Estonians are not that rich . and if you do everything youself, youll gonna save half the money...

V2Rocket

I would have liked the AFM replacement pipe but didn't know there was such an option.
No big deal, I am going to make my own.

I did get the TPS.

odonnell

Just an FYI, the 951 TPS works flawlessly with any standalone and bolts to an NA throttle body, as it's a potentiometer design. I paid about $50 for mine. I know there BMW ones that work too you could probably find more easily.

Aivar88

V2 , that replacement pipe was also welded by raceboys source, im sure you wont find one on shop thats fits bolt on.

also we discovered a slight vacuum above 4.5k rpm, even after afm delete(so its even worse with afm) , we guess 3.0L could use a little larger throttle body but its a same size as in 2.5L . few extra horses right there i guess :d if a decide to go for a swap.

V2Rocket

Problem is, the 951 TPS is NLA new.
There are none left.

odonnell

Yup. Another alternative (for USA guys mainly) is to grab one of these:

http://www.2040-parts.com/porsche-94...ction-i301635/

and a GM TPS at the junkyard for cheap. That's my move if this TPS goes bad. Luckily it seems like the main failures on them are idle and WOT switches (neither works on this TPS which is why I got it cheap) and you don't need that functionality for aftermarket EFI. The part you need is the potentiometer, which can re-seated the same way the AFM wiper arm is re-seated.

azbanks

I'm looking at going with this.

http://www.bellengineering.net/produ...roducts_id=674

V2Rocket

I bought one of those "cone filter adapter" things that would normally bolt onto the AFM, but I will put it on the airbox and use a rubber coupler to join it to a piece of 70mm pipe to fit the J-boot.

The IAT I am just going to drill a hole in the side of the airbox and secure the IAT with a nut on the inside. It will be above the filter (in case the nut comes loose), just behind the "belt cover vent" port on the NA airbox lid.

odonnell

That's what I'm running, it's a good product.

DLS

Any more using vems on 951?
Pictures of installing?

What is the benefit of going wasted spark or cop instead of original ignition system?

I´m thinking of changing to either vems or ecu master emu.

odonnell

Megasquirt is also worth checking out, and although it isn't true PnP it's been well documented for our cars by a friend and myself here on RL if you are interested in that route.

WS / COP has a few advantages, namely: 1) no moving parts, you can mount wherever you want to which is good in a cramped 951 engine bay. 2) powerful spark at all RPMs, where the dizzy runs out of dwell past ~4500 RPM or so and spark blowout can become a possibility. 3) more accurate spark compared to a mechanical rotor, nobody likes pinging. If your ECU supports it, I'd run it, unless physically installing the coil pack(s) is a holdup.

Raceboy

DLS, you can contact several guys in Sweden who have bought my system, for example Filip Nygren or Fredrik Nyqvist.

Filip bought a kit from me and Dahlbäck Racing tuned it for him too, got 305rwhp from stock 951 with K26/8 turbo @ 1.2bar with 3bar FPR.