Toyota MR2 Message Board - View Single Post

Powell · 10-02-2008, 12:34 AM

Ok well i'm new to the mr2 world here. To start i'd like to say i am really happy with how easy it is to gain access to the engine bay. i guess you could call me the unofficial mechanic for my friends mr2. So few questions i had... this 91 mr2 that came with all the things needed to run a Stand alone tec 2. The turbo had bad bearings (stock one was put back in by previous owner when sold) so that will be shipped out and rebuilt.

#1- I'm not sure what size injectors it has. They are solid black and i guess them to be Siemens DEKA 87lbs (850ish cc) I think it was the previous owner who mentioned he thought they were 550cc but thing i was researching that didn't make much sense was that the guy also claimed the car was running 10 seconds when he had a bigger turbo on it. I've been trying to figure about about how much power the car would have to be making and well i figured like 550ish range? maybe less i'm not sure but all n all it seemed like the 550cc weren't big enough to power a 10 sec car and i haven't been able to match the injector to anything that small. So far just the 850's. I could get the number on them again a bit later

#2- the o2 sensor is gone and well i aslo figured since the car has a electromotive stand alone tec 2 computer that the previous owner kept the wideband he prob had... so question is what type of wideband works with that computer on the mr2 and any basic refrence on how it connects. if i have to splice/direct plug in/ whichever.....

#3 Do these cars have MAP sensors? I saw someone post that it may have an AFM? i'm not too familiar with the AFM so if i could get a comparision with that to an MAP.

Guess lastly is if anyone here also uses the tec 2 stand alone, what software do you use? i got the wintec2 for now but can't really do much with that until the rest of the car is done. It also needs a TPS. (dunno why all the sensors are gone from this thing)

Oh There was one other thing, The turbo setup didn't have the coolant line running to it. Apparently my friend was told it wasn't needed so the previous owner never put it on?? I could be wrong but i'm pretty sure thats there for a reason. Especially if he (previous owner) was claiming it to be a 10 sec car when he had it.

10-02-2008, 12:34 AM	#1 (permalink)
Powell No Skills Join Date: Oct 2008 Posts: 11 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Few Engine questions Ok well i'm new to the mr2 world here. To start i'd like to say i am really happy with how easy it is to gain access to the engine bay. i guess you could call me the unofficial mechanic for my friends mr2. So few questions i had... this 91 mr2 that came with all the things needed to run a Stand alone tec 2. The turbo had bad bearings (stock one was put back in by previous owner when sold) so that will be shipped out and rebuilt. #1- I'm not sure what size injectors it has. They are solid black and i guess them to be Siemens DEKA 87lbs (850ish cc) I think it was the previous owner who mentioned he thought they were 550cc but thing i was researching that didn't make much sense was that the guy also claimed the car was running 10 seconds when he had a bigger turbo on it. I've been trying to figure about about how much power the car would have to be making and well i figured like 550ish range? maybe less i'm not sure but all n all it seemed like the 550cc weren't big enough to power a 10 sec car and i haven't been able to match the injector to anything that small. So far just the 850's. I could get the number on them again a bit later #2- the o2 sensor is gone and well i aslo figured since the car has a electromotive stand alone tec 2 computer that the previous owner kept the wideband he prob had... so question is what type of wideband works with that computer on the mr2 and any basic refrence on how it connects. if i have to splice/direct plug in/ whichever..... #3 Do these cars have MAP sensors? I saw someone post that it may have an AFM? i'm not too familiar with the AFM so if i could get a comparision with that to an MAP. Guess lastly is if anyone here also uses the tec 2 stand alone, what software do you use? i got the wintec2 for now but can't really do much with that until the rest of the car is done. It also needs a TPS. (dunno why all the sensors are gone from this thing) Oh There was one other thing, The turbo setup didn't have the coolant line running to it. Apparently my friend was told it wasn't needed so the previous owner never put it on?? I could be wrong but i'm pretty sure thats there for a reason. Especially if he (previous owner) was claiming it to be a 10 sec car when he had it. Last edited by Powell; 10-02-2008 at 12:46 AM..