Noz Posted February 29, 2012 Share Posted February 29, 2012 Evening all, I was wondering how the TT oil pump runs the TT CPS, you can swap the NA and TT pumps to enable using the TT CPS, I've read different places it uses a halls sensor, but others say its a crack trigger and isn't magnetic as the gap required for halls would be too low. I've had a search and came up with different answers. Thanks Quote Link to comment Share on other sites More sharing options...
Noz Posted February 29, 2012 Author Share Posted February 29, 2012 I think I've answered my own question from this thread: http://www.supraforums.com/forum/showthread.php?571928-HOW-TO-Go-distributorless-with-TT-sensors Quote Link to comment Share on other sites More sharing options...
Noz Posted February 29, 2012 Author Share Posted February 29, 2012 Nope, still don't understand how the oil pump affects the CPS? Quote Link to comment Share on other sites More sharing options...
mellonman Posted March 1, 2012 Share Posted March 1, 2012 i dont know much about the n/a but the tt has a crank trgger star which may be why they have different pumps, now i dont know if the n/a has this or needs this with a dizzy. i know the sensors crank and cam are magentic as this give problems with my aem fic, hope that helps but im sure someone that knows for sure will be along, maybe change the title so it will get picked up a little better Quote Link to comment Share on other sites More sharing options...
Noz Posted March 1, 2012 Author Share Posted March 1, 2012 Thanks mate that does help understand why the oil pump is needed. The NA has a gear that has been ground into the original billet, and is connected to the dizzy giving each cylinder its spark, I can remove it and use a different sensor but I want to change the cams and there are no 2JZ cams with the dizzy gear on. I can't understand why the cam sensor needs to be in the head, if the oil pump uses the 12 tooth gear trigger. Quote Link to comment Share on other sites More sharing options...
Pulley Posted March 1, 2012 Share Posted March 1, 2012 Is it so the ecu knows at wot point in the cycle the piston stroke is in?, surely the 6 point would only give tempo Quote Link to comment Share on other sites More sharing options...
David P Posted March 1, 2012 Share Posted March 1, 2012 (edited) There are N/A cams, I think TTC make them. Edited March 2, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted March 1, 2012 Author Share Posted March 1, 2012 Is it so the ecu knows at wot point in the cycle the piston stroke is in?, surely the 6 point would only give tempo I've not took a dizzy apart, so I wouldnt know if the sensor was in there. That would make sense if by removing the dizzy you also remove the stock sensor. I need to take one apart and find out, or find someone else that knows. Quote Link to comment Share on other sites More sharing options...
mellonman Posted March 1, 2012 Share Posted March 1, 2012 I've not took a dizzy apart, so I wouldnt know if the sensor was in there. That would make sense if by removing the dizzy you also remove the stock sensor. I need to take one apart and find out, or find someone else that knows. it might show you in the manuals Quote Link to comment Share on other sites More sharing options...
David P Posted March 1, 2012 Share Posted March 1, 2012 (edited) There is a wheel under the rotor arm and crank position sensor in the distributor. Edited March 2, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted March 1, 2012 Author Share Posted March 1, 2012 Im still confused. So 2JZGE: Dizzy (spark output)------------------------------------Replace with VVti Waste spark coils crank position sensor (gear beneath Dizzy)-----------Replace with TT oil pump OEM NA CPS---------------------------------------------Replace with welding in TT sensor into head. HT Leads-------------------------------------------------Replaced with coils from is300 - no DLI required up to 20psi does that sound like it justifys each units replacement? I am learning but still not 100% on each components replacement. Quote Link to comment Share on other sites More sharing options...
David P Posted March 2, 2012 Share Posted March 2, 2012 I think I've answered my own question from this thread: http://www.supraforums.com/forum/showthread.php?571928-HOW-TO-Go-distributorless-with-TT-sensors It would be simpler to fit a T.T. head. Quote Link to comment Share on other sites More sharing options...
Noz Posted March 2, 2012 Author Share Posted March 2, 2012 Wheres the fun in that Quote Link to comment Share on other sites More sharing options...
CanisLupus Posted March 2, 2012 Share Posted March 2, 2012 The TT needs the two cam sensors to recognize where TDC is. The CPS alone is not sufficient as it's only a star without a gap or anything similar Quote Link to comment Share on other sites More sharing options...
Noz Posted March 2, 2012 Author Share Posted March 2, 2012 I see, so the sensor in the head is a hall sensor and runs off the cam, and the oil pump runs from the crack and uses another trigger to give it those two inputs. Quote Link to comment Share on other sites More sharing options...
CanisLupus Posted March 2, 2012 Share Posted March 2, 2012 Don't know the cam sensor type out of my head. The ECU Combines the three signals(as the tt has two cam sensors) and it looks kind of like this: cam 1 ----|-------- cam 2 ---------|--- cps se -|-|-|-|-|-|- I have the three signals combined in an scope read out from a member on here, i'll try to find it and will post it here. With a dizzy i think there is no need for such a "sophisticated" system. Quote Link to comment Share on other sites More sharing options...
Nodalmighty Posted March 2, 2012 Share Posted March 2, 2012 The na dizzy has 3 reluctor sensors NE, G1 and G2. NE reads 24 teeth (RPM - Effectively 12 crank teeth) and G1 and G2 both read a single tooth for phase calculations. G2 is a back up and also used for quicker starting. The TT has a 12 pointed start, also a reluctor (NE), and two G1 and G2 (also both reluctors) in the head on the inlet cam. Same deal as the NA just different config. All the oil pump on the TT does is provide a position for the sensor to bolt to. The VVTI uses a 36-2 on the crank and I think only one cam sensor as the gap on the crank wheel also act at a TDC reference. The cam sensor reads 3-1 which also allows the VVTi ecu to calculate the cam position relative the cam wheel. Lyndon. Quote Link to comment Share on other sites More sharing options...
Noz Posted March 2, 2012 Author Share Posted March 2, 2012 I've seen modified NA heads with a welded sensor, it's near impossible to be able to match another sensor in the correct place, so I wonder how they get 2 sensors that's required. I always there there was a cam sensor, and a crank sensor. Now there is 2 cam sensors and 1 crack Im unsure how the NA conversion would locate a second cam sensor. Think the best option is to go with the 7m gte and wastespark coils and run custom cams. Quote Link to comment Share on other sites More sharing options...
David P Posted March 2, 2012 Share Posted March 2, 2012 (edited) You might find these links useful. http://www.supraforums.com/forum/showthread.php?435871-What-are-you-guys-doing-for-cams&highlight=N%2FA+camshaft+264 http://ttcperformanceproducts.com/ttc-performance-2jzge-268-2268.html Edited March 2, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted March 2, 2012 Author Share Posted March 2, 2012 I've been talking to the guys at TTC about custom NA cams for a long time. It's definitely an option I may go down, it's just the importation of the cam's im worried about due to weight and cost, the cost to send them may kill me. It's around £500 to get your cams turned into anything you want, even 300 duration and 10mm+ lift. Still go with a 7m cps though, dizzy looks sh*t. Good spot on the thread hunting Quote Link to comment Share on other sites More sharing options...
David P Posted March 2, 2012 Share Posted March 2, 2012 (edited) It would be simpler to fit a T.T. head. With a standalone ECU and TT ignition components with looms for engine and bay gives plug&play coil-on-plug. GTE cams, manifolds and partridges in pear trees all become plug&play too. Edited March 2, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted March 2, 2012 Author Share Posted March 2, 2012 dont want GTE manifolds or head. that is TOO EASY for me, want a challenge Quote Link to comment Share on other sites More sharing options...
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