Jump to content
Impact Bumpers

andy121

Members
  • Content Count

    219
  • Joined

  • Last visited

About andy121

  • Rank
    IB Addict

Recent Profile Visitors

251 profile views
  1. andy121

    3.2 Standalone ECU Project

    Sounds a reasonable goal, Yeah that horrendous OEM maf has been ditched, I'm actually going to be using a speed density tuning strategy utilising a 2bar MAP sensor and inlet air temp sensor. I did think about using a MAF strategy based on a modern MAF but decided to stick to what I know best in the speed density method. They are very very good but not the easiest to use for a beginner. I nearly went with Link actually to make life easier as I'm much more experienced with their software but glad I decided on Syvecs in the end.
  2. andy121

    3.2 Standalone ECU Project

    nope engine is 100% stock as far as I know ( I have no reason to suspect otherwise), Power goal is to make as much as stock 😂 honestly I don't really have a goal because I have no idea, but I am interested to see how well I can make it work with a stock engine (maybe a set of cams at some point). Also I am poor and these engines are anything but cheap to extract power from, but it will be safe and hopefully the ECU and sensor will highlight the areas that need improvement to try and make it as good as it can be. I agree its abit of an odd project thats not the usual way people go about these engine, but it appeals to me and I really like the car 😉
  3. andy121

    3.2 Standalone ECU Project

    I'll show you the exhaust when I drop the engine for the flywheel and cam since sensor. It's nothing particularly special but lots of porsche exhausts don't seem to promote flow very well for some reason.
  4. andy121

    3.2 Standalone ECU Project

    Not really 100% sure which area this project is suited to, so I will try here and hope I don't get told off. Project Background: I bought this car about 6 years ago and have never really come a conclusion of where I wanted to take it (or afford to) So I thought I would just spend a heap of money and time converting to stand alone management because I find that sort of thing interesting, I have the pleasure of working for a exhaust specialist, we are not your standard powerflow, although we do road cars, the bulk of our business comes from motorsport and inconel manifolds on World Rally X cars. I also built and run a Pro Drift Car for my boss. this luckily gives me some space, a good set of tools and some experience to work on the project. Engine wise my car is bone stock, other than the full exhaust system we made here. which features proper merge collectors and a x-pipe to give very good flow and I guess that my choice to upgrade the management will make good use of this. So far I have taken many things apart to work out exactly where I am going with this, My plans may seem a little obscure as they come from experience with high power Japanese/BMW stuff rather than Porsche, but every part of this project will have been well thought about ( I hope) and based on our experiences (I have some specialists on speed dial if I am stuck) I have included a picture of the drift cars engine bay (sorry its very dirty after a season on being beaten), so you can see what I am used to dealing with and why these air cooled Porsche engines are so obscure to me. If anyones actually interested its about 600bhp but with a ridiculous torque curve as we use nitrous to spool the turbo nice and quick. It also features the VAG coilpacks that I intend to use, I see people complain about them not dealing with heat very well. but after what we put them through heat is not the problem So the first part of my puzzle is the ECU, I have chosen to fit a Syvecs S6 Plus ecu, reasons being that Syvecs is very tunable (Syvecs is based on the Life Racing units used in LMP) and allows me to run 2x lambda probes with relative ease for a relatively good price. I will be using KA Sensors pressure transducers for anything pressure related as they are super reliable and accurate. Flying lead is a nice touch to crimp a DTM connector onto also. Here's the part that some will hate.... E-throttle. I can already hear cries of "why?" "its so slow" "It doesn't feel the same as a cable". The reason is that if setup correctly on a proper ECU (as above) it can be tuned to work better than a cable throttle and so well that you cant even tell its not a cable. It also does away with the linkage and all the idle control junk which makes things alot simpler. in my opinion anyway. I went for this specific unit because it has the same PCD mounting holes as the intake manifold, although it did need porting out, which retrospectively was more hassle than it could have been, luckily my colleague was avoiding his wife one night and was happy to take on that job. Also tapped a few holes in the rear for Vacuum reference ports as the OEM stuff is in the throttle body To make the e-throttle work, it needs a pedal and as everyone knows, these cars never had it from the factory so I had to get creative and create a hybrid that uses the porsche pedal to operate a heavily modified (chopped up) BMW E90 potentiometer and spring set on my aluminium bracket that now bolts into the space behind the pedal. It looks very overkill, but I never want to have to modify it or repair it. plus I had to make sure it wouldn't flex when I get excited with the right foot. Thats as far as I have got right now, I need to get the inlet manifolds cleaned out of swarf and old oil before I can reassemble them.
  5. andy121

    Triumph ITB conversion

    That is very difficult to do, and comes with its own compromises. also don't forget that alot evolve over time.
  6. andy121

    Oil Breather Housing Temp Sensor?

    So that can go in the bin then! Anyone got any ideas on the oil temp sensor?
  7. andy121

    Oil Breather Housing Temp Sensor?

    No just to the left of that, you can see the grey cable going in, looks like a speed reference sensor of some description
  8. andy121

    3.5L MFI twin plug. 380HP and 330 ft lbs

    Is it just me or is that exhaust really restricted? Is it twin exit?
  9. Afternoon gentlemen, Does oil flow under the oil breather housing when the engine is running? My 85 3.2 has a temp sensor fitted that isnt plugged into anything, and I am looking to add a temp sensor, what it needs to work reliably is a flow of oil past it. Also what the hell is the sensor in the top of the imaged with the plug that goes nowhere?
  10. andy121

    Triumph ITB conversion

    As mean in green says, Imagine as you are driving around, the fuel in the tank sloshes around, this can cause an empty spot (or air bubble if you will) around the feed that goes to the pump, this air then makes its way through your fuel system and causes the engine to run lean briefly, on a road car its not much to worry about but on a track car its a bigger problem. obviously running lean can result in potentially catastrophic problems (melted pistons etc in worst cases) You honestly don't have to worry about the fuel having air in it from the way the rails are plumbed, the way I proposed (and the way a stock 3.2 is apparently) is intended to give the most equal flow to all injectors, the issue with flowing through 1 rail and then all the way through the 2nd, is that each injector takes abit of fuel and pressure and by the time its at the 6th injectors, there is less fuel available compared to the 1st injector. I would also look into a Fuel Pressure Damper (which a stock 3.2 also has) I have no idea what the 911 tank is like, I would assume quite basic going on the age of the car, its something I will look into at some point on my car.
  11. andy121

    Triumph ITB conversion

    So that's my version then? Stock carrera 3.2. Well not my version but that's the way most motorsport fuel systems are setup unless it's drag where a dead head setup is used. You don't get airlocks to bleed out of a fuel system like this, so that's not a worry, however fuel surge in the tank would be.
  12. andy121

    Triumph ITB conversion

    might be too late, but this is how you should be doing it, gives the most even fuel distribution to injectors.
  13. andy121

    Engine harness drawing

    I guess for absolute reliability, all OEM manufacturers do it.
  14. andy121

    Engine harness drawing

    If it's for the purpose of rewiring, porsche will have used much larger wires than needed, you could work out from the companants draw what size wire to spec.
  15. andy121

    Sensors for stand alone ECU

    I havent worked with any ECU's that need oil temp, Coolant yes which obv we substitute for cylinder head temp. The Syvecs unit I am using is very very flexible, way overkill for my car to be honest, but wheres the fun in that. Thanks for the advice on calibration, I am actually experianced in ECU calibration so that's the easy bit for me, just getting it all worked out is the tricky bit. I am much more familiar with the typical Japanese performance engines
×