John G Posted June 16, 2022 Report Share Posted June 16, 2022 Hi everyone, I'm in the process of converting my TR6 to EFI, i want to keep as much of the original look as possible so decided to keep the original TB's. My problem is finding a local company who can complete the machining work on the TB injector holes to fit the new EFI injectors. I could reamer them out by hand but I wanted to create a physical stop for the injector to sit against. Can anyone recommend an engineering shop that could do the TB work. Ideally in the midlands but any information would be appreciated. Many thanks John G Quote Link to post Share on other sites
RogerH Posted June 16, 2022 Report Share Posted June 16, 2022 Hi John, have you contacted your local group. Somebody there may have already gone through all this. Roger Quote Link to post Share on other sites
John G Posted June 16, 2022 Author Report Share Posted June 16, 2022 Hi Roger, thanks for the reply i've sent an email to Richard this morning but to my knowledge no one in my local group has completed an EFI conversion but you never know someone may be able to help. Quote Link to post Share on other sites
Andy Moltu Posted June 16, 2022 Report Share Posted June 16, 2022 Is the engine sgnificantly tuned? If it is then a single throttle body might not be ideal & you may well be better off with 3 Weber style throttle bodies. If the engine is otherwise pretty standard in terms of state of tune then modded original manifolds connected to a single throttle body should be fine. It would be a same to spend money modding your originals only to have to ditch them in the end. Quote Link to post Share on other sites
JochemsTR Posted June 16, 2022 Report Share Posted June 16, 2022 (edited) You do not need any machining to fit modern EV Injectors. I build these myself. Edited June 16, 2022 by JochemsTR Quote Link to post Share on other sites
JochemsTR Posted June 16, 2022 Report Share Posted June 16, 2022 customer requested aluminium fuel rail. not my personal favorit, but customer is king. Quote Link to post Share on other sites
John G Posted June 16, 2022 Author Report Share Posted June 16, 2022 23 minutes ago, JochemsTR said: You do not need any machining to fit modern EV Injectors. I build these myself. Wow !! love the workmanship looks really good, the inserts for the injectors look 3D printed ? Quote Link to post Share on other sites
JochemsTR Posted June 16, 2022 Report Share Posted June 16, 2022 1 minute ago, John G said: Wow !! love the workmanship looks really good, the inserts for the injectors look 3D printed ? Thank you. Nope. Machined. POM. Quote Link to post Share on other sites
John G Posted June 16, 2022 Author Report Share Posted June 16, 2022 42 minutes ago, Andy Moltu said: Is the engine sgnificantly tuned? If it is then a single throttle body might not be ideal & you may well be better off with 3 Weber style throttle bodies. If the engine is otherwise pretty standard in terms of state of tune then modded original manifolds connected to a single throttle body should be fine. It would be a same to spend money modding your originals only to have to ditch them in the end. Andy not too tuned but tweaked a little, i have looked at the Jenveys and they are really nice but wanted to try and keep as original as possible, but it has to work too. I've got a spare set of TB's so the original set up will stay in a box in case someone want to go back to stock. Quote Link to post Share on other sites
CK's TR6 Posted June 17, 2022 Report Share Posted June 17, 2022 I am not so sure about the single throttle body limitation. My engine is 0.030” over, 9.9 CR, TSI 275-6 cam, 1.55GP roller rockers, Moss header, SS valves, bearing cap braces, MS3X EFI, crank ignition and …….a single throttle body on the common plenum of a bespoke intake. I really don’t think it has held the performance back. The TB is from a 4.3l V6. Quote Link to post Share on other sites
Spit_2.5PI Posted June 17, 2022 Report Share Posted June 17, 2022 On 6/16/2022 at 11:11 AM, JochemsTR said: You do not need any machining to fit modern EV Injectors. I build these myself. Jochems, that's a brilliant solution. I have never seen such slender injectors - I often wondered if such things existed. Which ones did you use please? Cheers, Richard Quote Link to post Share on other sites
JochemsTR Posted June 17, 2022 Report Share Posted June 17, 2022 21 minutes ago, Spit_2.5PI said: Jochems, that's a brilliant solution. I have never seen such slender injectors - I often wondered if such things existed. Which ones did you use please? Hello Richard, Bosch 0 280 158 167. Here in Germany easily available. Jochem Quote Link to post Share on other sites
Spit_2.5PI Posted June 18, 2022 Report Share Posted June 18, 2022 Thank you Jochem. Richard Quote Link to post Share on other sites
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