carboy0 Posted January 12, 2017 Share Posted January 12, 2017 Hopefully one of you EFi-iers can advise. I am building a TV8 EFi. Whereabouts in the exhaust system have you mounted the lambda sensor.I run a complete SS system including manifolds. The only crossover point is the bridge in front of the silencers. Is this too far back for the lambda sensor?Any advice welcomed.CHRIS Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted January 12, 2017 Share Posted January 12, 2017 As near the engine as possible consistent with seeing the gas from all cylinders. Can be a challenge with V engines. Provided you are using a heated sensor (most are now and all wideband ones are) you should be ok.Some useful mounting guide info herehttp://www.innovatemotorsports.com/support/manual/LC-1_Manual.pdfNick Quote Link to comment Share on other sites More sharing options...
carboy0 Posted January 13, 2017 Author Share Posted January 13, 2017 Thanks Nick - very good link.Chris Quote Link to comment Share on other sites More sharing options...
RobPearce Posted January 13, 2017 Share Posted January 13, 2017 Most modern production V engines have two lambda sensors (well, three or four, probably, as there's a post-cat one, too, but...) because it's difficult to achieve the desired proximity to the engine it you're only looking after the pipes join. Quote Link to comment Share on other sites More sharing options...
Gt6s Posted January 14, 2017 Share Posted January 14, 2017 As Nick has already said. As near to the engine as possible As hot a place as you can find. V8's normally use two sensors but one on one bank will work absolutely fine I ran one on my six off the rear three cylinders only. It will work.Laurence Quote Link to comment Share on other sites More sharing options...
carboy0 Posted January 14, 2017 Author Share Posted January 14, 2017 Thanks Laurence,I need to reread my ECU handbook to see whether I can run two sensors or whether it will only work off one.If there is room, I could run one on the front of the near side manifold where the 4-2-1 is reduced to one.Chris Quote Link to comment Share on other sites More sharing options...
OBE Posted January 16, 2017 Share Posted January 16, 2017 What ecu are you running Chris. Seems there's a few of us EFI-ing our TV8s at the moment 🙂 Quote Link to comment Share on other sites More sharing options...
carboy0 Posted January 16, 2017 Author Share Posted January 16, 2017 Canems Quote Link to comment Share on other sites More sharing options...
V Mad Posted March 31, 2017 Share Posted March 31, 2017 Just fit one sensor at the front downpipe should be good enough. You could only use two if your ECU will be able to control mixtures individually on LH or RH side, and can identify which injectors feed each bank, and then control those individually. I am using two TB injectors so only need one Lambda sensor. Quote Link to comment Share on other sites More sharing options...
OBE Posted April 14, 2017 Share Posted April 14, 2017 I will be running carb body injectors with the std inlet manifold, simple but not as good as injector per port, but still gets a mappable system up and running.The TR7 based system sounds interesting. Watching with interest.My own project has stumbled a bit because the machine shop I use got as far as 3D printing my carb adaptors but haven't as yet made anything in aluminium for me .. so I'm still on carbs and mappable ignition only. Quote Link to comment Share on other sites More sharing options...
JohnD Posted April 14, 2017 Share Posted April 14, 2017 Also, the sensor should not be on the underside of the pipe it sits in, else condensation will collect IN the sensor, !There always is some at a cold start. It evaporates as the system warms up, but it's not good for it.On top or at the side.John Quote Link to comment Share on other sites More sharing options...
V Mad Posted February 13, 2018 Share Posted February 13, 2018 Quoted from OBE I will be running carb body injectors with the std inlet manifold, simple but not as good as injector per port, but still gets a mappable system up and running.The TR7 based system sounds interesting. Watching with interest.My own project has stumbled a bit because the machine shop I use got as far as 3D printing my carb adaptors but haven't as yet made anything in aluminium for me .. so I'm still on carbs and mappable ignition only. I have my own design EFI running now using Stroms as the throttle bodies. 3D Nylon works fine but I have some made in Al as well. Any progress on yours? Did you finish your project? Quote Link to comment Share on other sites More sharing options...
ferny Posted February 13, 2018 Share Posted February 13, 2018 Which sensor and controller are you buying? Pop onto their website and grab the manual as it'll have the information in it. Quote Link to comment Share on other sites More sharing options...
That Man Posted March 1, 2018 Share Posted March 1, 2018 Some interesting advice here, having just bought a Innovate MTX-L Plus for my 1300TC Efi Project, it does state in the manual in Bold type that the sensor should be at least 24 inches downstream from the exhaust port. I'm guessing it depends on whether you are using a heated or non-heated sensor? Quote Link to comment Share on other sites More sharing options...
ham204 Posted April 9, 2018 Share Posted April 9, 2018 Carboy0 - how is your EFI project coming on? Quote Link to comment Share on other sites More sharing options...
carboy0 Posted October 30, 2018 Author Share Posted October 30, 2018 Quoted from ham204- Carboy0 - how is your EFI project coming on? Slow, very slow. Got the toothed wheel on behind the crank pulley and need to fab the crankshaft sensor bracket next. I got sidetracked in prepping the car for the RBRR, so I need to get back to plan A now. I finally put the Lambda sensor boss on the vertical section of the downpipe for the left cylinder bank. Quote Link to comment Share on other sites More sharing options...
V Mad Posted August 24, 2019 Share Posted August 24, 2019 Quoted from carboy0- Quoted from ham204- Carboy0 - how is your EFI project coming on? I finally put the Lambda sensor boss on the vertical section of the downpipe for the left cylinder bank. Same here. I am using a wideband sensor with AFR gauge. Quote Link to comment Share on other sites More sharing options...
.thumb.jpeg.b15b81ef10abeea1c3039ae03c4a9f3a.jpeg)
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.