ihatejoefitz Posted March 29, 2005 Share Posted March 29, 2005 is anybody using the stock tps? Quote Link to comment Share on other sites More sharing options...
jkube Posted March 29, 2005 Share Posted March 29, 2005 If your talking about the 280zx TPS. the answer would be - No, you cant use it. Megasquirt need a varying resistor type of TPS whereas the stock unit is like an on/off switch. I found the best one to use is from the 24SX. Only needs a small adapter bracket and it works well . Quote Link to comment Share on other sites More sharing options...
mobythevan Posted March 29, 2005 Share Posted March 29, 2005 I replied to this and my post got thrown away. Extra code has the ability to control several features from the MAP varying instead of the TPS. You could try that, but I would just put a potentiometer type TPS on there and forget about it. Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted March 30, 2005 Author Share Posted March 30, 2005 thanks moby. while im here, may i ask where you got your new turbo? Quote Link to comment Share on other sites More sharing options...
mobythevan Posted March 30, 2005 Share Posted March 30, 2005 I just took a chance with an ebay guy. He advertised it as a new garrett. It is probably a rebuild, but seems to be everything he said it was. It came with internal wastegate and actuator so I can't complain. We'll see how long it lasts. Quote Link to comment Share on other sites More sharing options...
Tony D Posted April 1, 2005 Share Posted April 1, 2005 I used each of the following at one time or another: 91 Stanza TPS (Potentiometer) from an SR20 240SX TPS (Potentiometer) from a KA24 91, 92, 93 Mazda 929 TPS (Potentiometer) Some Ford TPS on a 70mm Throttle Body A GM TPS (Potentiometer) Whatever throttle body you choose to use, the later the vehicle the better, as the chances are good it will have a TPS and not just a switch. The Mazda was the only odd man out, as it had more wires than the rest... But the Mazda Throttle Body also had an integrated ADJUSTABLE idle air bypass circuit! Same as the Ford unit. Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted April 4, 2005 Author Share Posted April 4, 2005 im going to use the 240sx's throttle body as there are about 10 of them in the junkyard. Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted April 5, 2005 Author Share Posted April 5, 2005 i wound up doing as i said and swaping the whole throttle body, i also modified my accelerator pedal to use the throttle cable from the 240sx, it took me all of 30 minutes and i think it cleans up the intake a lot. especially after i grind down the linkage mounts. Quote Link to comment Share on other sites More sharing options...
proxlamus© Posted April 5, 2005 Share Posted April 5, 2005 how did you hook up the 240SX pig-tail wires?? There was a red wire a black wire and a white/grey wire ?? Red power? Black ground? and white/grey the TPS poten. signal??? ALso.. where did you source a 5v source for the potentiometer from? Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted April 5, 2005 Author Share Posted April 5, 2005 you'll have to ask moby, i havent finished installing megasquirt yet. red being power, black being ground is pretty much standard though. Quote Link to comment Share on other sites More sharing options...
evildky Posted April 5, 2005 Share Posted April 5, 2005 i wound up doing as i said and swaping the whole throttle body, i also modified my accelerator pedal to use the throttle cable from the 240sx, it took me all of 30 minutes and i think it cleans up the intake a lot. especially after i grind down the linkage mounts.got any pic's? I've been wanting to do that but not sure about cable length Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted April 5, 2005 Author Share Posted April 5, 2005 ill take some tomorrow... it doesnt matter how long the cable is really... mine has a lot of slack and it basically loops behind the brake master cylinder Quote Link to comment Share on other sites More sharing options...
Tony D Posted April 6, 2005 Share Posted April 6, 2005 I'll agree, I converted mine some time ago using a 200SX throttle cable. When I drilled out the ball on the end of hte throttle pedal and bent it 90 degrees, it lined right up like it was made for the conversion. I will have to take photos and post them on my cardomain site. The 200ZX cable "pull clip" went right in the hole vacated by the old bellcrank pivot ball's stem! Just like on the 200SX pedal! I was amazed. Have not converted the EFI car as of yet. No time. Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted April 7, 2005 Author Share Posted April 7, 2005 sorry, i didnt have time to get any pictures today, ill do it tomorrow before school. tony, i imagine that the 240sx and the 200sx use about the same cable, i read your post on zcar and thats where i got the idea. Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted April 8, 2005 Author Share Posted April 8, 2005 Quote Link to comment Share on other sites More sharing options...
Tony D Posted April 10, 2005 Share Posted April 10, 2005 I got to ask.... Did you bend the throttle lever IN the car? It sure looks like someone was up there with a blowtorch! LOL But yeah, that is about what mine looks like. On a technical note, I read somewhere that the quadrant should have the throttle cable heading towards it tangentially so I try to set mine up like that and it worked O.K. how is tip-in with your setup, as it looks like the cable mount is a bit higher than it "should" be for the TB position. I considered setting up like that, but with the quadrant on the TOP of the manifold... Gives you a few more alternatives for mounting that cable with the correct angle. Especially if you whack the stock linkage holders off the top of the manifold... Quote Link to comment Share on other sites More sharing options...
ihatejoefitz Posted April 10, 2005 Author Share Posted April 10, 2005 the cable position is definitely temporary, i havent even gotten MS running on my car yet, so it was pretty much impromptu. as soon as everythin is up and running i'll start cleaning up the intake, grinding down the stock linkage and ill probably weld a bracket for the cable to sit in. my guess as to why the metal is so burnt looking right there, is probably because the old cammed and carburated engine would backfire through the carbs for the first ten or so minutes after startup and they were pretty close to that hole. the tip in is not great and is something that ill have to get used to. Quote Link to comment Share on other sites More sharing options...
280zrice Posted May 29, 2005 Share Posted May 29, 2005 helo, i am using the 240sx throttle cable on the inside of the intake along with the spacer and and the 60mm tb, , welded the arm of the 240sx pedal to the to the 280z one , ( my first prototype) fed the cable through the linkage port in the firewall and used the cable mount for the cable end at the tb side attached to a mounting hole in the inake, positioned to the correct distance, on the 240sx tb itself i used the cruise control , half moon cable throttle piece and shortened the shaft to clear the intake , on the potientiometer side, i redrilled the 280z potientiometer to accept the new angle of the mounting screws. my first attempt and it works great, no more linkage i want to adapt it to the origanal tb , to use on the street model to avoid the decel exaust , i also need input on other ideas on clean low budget custom tricks Quote Link to comment Share on other sites More sharing options...
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