Switching 550s for 850s what needs to be done??
#1
Switching 550s for 850s what needs to be done??
I have a pfc with single turbo
I want to switch over to these injectors
I need bigger o rings or to have my primary rail tapped but what exact size O rings and what do I do with the rail? I want no leaks!!
Also dont I have to change somestuff through the commander or datalogit? I thought steve kan told me to switch the 550 volts to .68 or something is that right?
Will I have to retune the car or will it drive fine after?
thanks
I want to switch over to these injectors
I need bigger o rings or to have my primary rail tapped but what exact size O rings and what do I do with the rail? I want no leaks!!
Also dont I have to change somestuff through the commander or datalogit? I thought steve kan told me to switch the 550 volts to .68 or something is that right?
Will I have to retune the car or will it drive fine after?
thanks
#3
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it'll drive alright but you'll be running richer than normal. for optimum power a retune would be neccessary.
Or you could lean it out yourself but then you're playing with a loaded gun.
edit: Oh, it's SurgeMonster. Hey man, how's it going? you get your new engine back together?
Or you could lean it out yourself but then you're playing with a loaded gun.
edit: Oh, it's SurgeMonster. Hey man, how's it going? you get your new engine back together?
Last edited by $150FC; 01-16-04 at 10:45 AM.
#6
books thanks
150FC I am going NA this weekend!! I examined my turbo and it wasnt damaged somehow what a miracle. So Now I am doing a custom NA setup LOL so that I can drive around my car without damaging the turbo and who cares if the engine totally blows up right then ill just get a reman...I dont want to rebuild a 52k mile old engine any way.
mahjik thanks I had already seen that. It doesnt say what size o rings he said he just went and asked some company for them. Also he says they experienced no leaking but Ive heard that there was leaking from a lot of people so I want to know what is true.
rallimike thanks, can you ask dave which method they were using when they were getting the leaking?
150FC I am going NA this weekend!! I examined my turbo and it wasnt damaged somehow what a miracle. So Now I am doing a custom NA setup LOL so that I can drive around my car without damaging the turbo and who cares if the engine totally blows up right then ill just get a reman...I dont want to rebuild a 52k mile old engine any way.
mahjik thanks I had already seen that. It doesnt say what size o rings he said he just went and asked some company for them. Also he says they experienced no leaking but Ive heard that there was leaking from a lot of people so I want to know what is true.
rallimike thanks, can you ask dave which method they were using when they were getting the leaking?
#7
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From personal experience, you can make the stock 850cc secondary's fit inside the 550cc primary injector seat. You'll need to shave off the top off the seat appx 2mm so that the 850cc injectors will not leak. HOWEVER, your idle will suffer because the 850cc injectors sit higher in the seat and do not sit flush like the 550cc injectors. If you bore out the 550cc to 850cc injectors, your idle will probably be better since the injector sits where it's supposed to be unlike the 850cc secondary injector. I'm running 550cc in the primary. I'm looking into buying a true 850cc secondary seat in the future.
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#9
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Originally posted by rallimike
It idled fine when I drove it home. Of course, it was snowing and I was scared to death, so I wasn't paying much attention to the idle
It idled fine when I drove it home. Of course, it was snowing and I was scared to death, so I wasn't paying much attention to the idle
#11
is it a fact that im going to just run a little rich?
so I drop these in with the new o rings and change the one setting on the pfc and im good to go?? It will run rich not lean right? the computer will know how to control the 850s just like it did the 550s?
thanks team
so I drop these in with the new o rings and change the one setting on the pfc and im good to go?? It will run rich not lean right? the computer will know how to control the 850s just like it did the 550s?
thanks team
#16
Mr. Links
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Originally posted by SurgeMonster
and can everyone confirm I dont need a retune? ill run rich if anything for sure?
and can everyone confirm I dont need a retune? ill run rich if anything for sure?
Originally posted by maxcooper
Too much fuel washes the oil away, and you get increased wear. Carbon deposits raise compression and create hot spots that can lead to detonation.
-Max
Too much fuel washes the oil away, and you get increased wear. Carbon deposits raise compression and create hot spots that can lead to detonation.
-Max
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