ok were still havingthis problem of very low power and it almost feels like its running on one rotor we swaped engines and over 3 ecus into it and still have the same problem we also tried swapping a afm on to it too and still no difference so today my friend swapped out his new cleaned and flowtested injectors and put some older 550cc's in that fixed the problem for about 30 sec it had a 2500rpm idle but it was working good until he tried reving it up over 3500 then the idle droped tp 1500 and now were back to haveing very low power and no the car wont startor idle now.. it started up perfect before but had the problem with the no power and reved very slow!! and the a idle at 1500!!! so if anyone can he that would be great!!

thanks

 

im just going to guess that its probably running on one rotor.
the only other thing that could go wrong is
a: partial ignition failure (unlikely) do you have spark on front and back?
b: partial injector failure (are they both squirting?) this is also unlikely cuz then the car wouldnt even start.

pull the plugs and do a poor mans compression test.

 

might be fuel pump.
might be injectors.
you say this happened with 2 different engines?
why not swap some parts from the second engine on there?

ps it is a good idea to use periods and spaces to break up your posts so that they do not run on forever this makes them very hard to read and not a lot of people will reply even if they know the info you need because they dont wanna muck thru all that **** next time you might wanna try that

pat

 

in my experience, running on one rotor is pretty unmistakeable. car sounds like a lawnmower or something. its pretty straight up. now.. what are the odds that you have 2 blown motors? id believe it. just do the poor mans compression test to rule it out okay?

 

i have experienced fuel problems that feel very similar to one rotor. true that its possible to have 2 blown motors...comp tests are easy.

 

compression was great on both motors but one had low oil pressure on one of them.Found the problem out it was the freshly cleaned injectors, he swapped them out and put jspec injectors in and now works great.

I was in a hurry before and ive dropped out of school so my grammar isnt well haha

 

you know some companies packthe injectors with paraffin right?

 

no i did not know that so how would u get the paraffin wax out

 

gas would dissolve it, or a carb cleaner.. its not designed to be really hard to remove, the idea is just so it doesnt get damaged during shipping. basically youve just gotta use the injectors to get it out. can you confirm that there is wax in the injector? (youd prolly know by looking in it)

 

yea it doesnt look like theres and wax in there!!! now theres a bigger problem !!! it stutters when its about at 6000rpm or higher and i dont know what it is or when it seems to go into boost it stutters... after we found this out we came back to look under the hood and the turbo was glowing red!! whats going on!!

 

running too lean still. figure out whats wrong witht the fuel system. pump, injectors, whatever.

 

fuel pump is a walbro 255 pumping 105psi
and using s4 jspec injectors and its was backfireing an sputtering a lot in higher rpm so u dont think its running to rich was checking o2 readings and they were in bettween .65-.72 when reving up but ur right it ran crazy lean .15 at idle!!