550cc enough for eIII16g at 20psi

[grizzly]

would that be enough fuel for the turbo. also i am getting either a bigger sidemount or a fmic but not sure yet. money kinda holding me back. but if any one has sumthing for sale at like 250 to 500 then i'll have to jump on it.
w/piping please.

 

[FullthrottleGST]

550s will be enough for the evo3 16g @ 20psi. although some have been known to max those out. thats probably like with a built motor and more boost.

 

[skinnypimp]

i ran 23 psi with my 550's on the evo316g i had ta lon

 

[bfdahl]

It also depends on your location. Here in LA we have 91 oct. you may have 93.

550s would do the job with 93 but i needed 660s on mine to do the job with 91.

 

[BGGSTin]

I have a 255 Walbro with FIC 550's and have run up to 29 psi and they were still going, as well as the knock count I may add.

 

[truwarrior]

85% injector duty cycle for me at 6500rpms. You should have atleast a 190FP rewired. If the 190 isn't rewired you'll run a little leaner up top around 6000rpms.

BTW I have 650

 

[daren_p]

550's should be enough for 20 psi, but your fuel & location will make a difference. If you want to run 20 psi I would go with a fmic, I did see some knock from time to time when I was running a HRC smic. It was tuned with dsmlink & a wideband running around 10.8 - 11.0 air/fuel.

 

[Mackzero]

We tuned my buddies 95 GSX with his dsmlink and the 550s should be fine. Definately rewire the pump, and you will need the front mount for anything over 16-18 psi on that sidemount depending on tuning of course.

 

[Stoner]

550's will be ok for the turbo on lower than 18-20psi but that depends on if the injectors actually flow 550cc's. Many injectors flow a little less than advertised for some reason or another.

I maxed out my buschur 550's pretty quick at 20psi (E3B16g) IDC's were in the 90's, which is too high for maximum tuning ability.

I now run PTE 880's and the highest IDC I have seen is 65% on race gas with boost hitting 28psi.

If I were you I would get 660's at least. That should give you plenty of pump gas room and definately enough room on race gas if you decide to use it.

FMIC is a big plus but not necessary if you plan to only run 15-16psi. Bigger fuel pump and/or a rewired pump is a must.

Just dont try to over do it and make sure you keep an eye on EGT's, WB, O2 volts or whatever you tune with.

 

[mirkoelek]

550's will be ok for the turbo on lower than 18-20psi but that depends on if the injectors actually flow 550cc's. Many injectors flow a little less than advertised for some reason or another.

I maxed out my buschur 550's pretty quick at 20psi (E3B16g) IDC's were in the 90's, which is too high for maximum tuning ability.

I now run PTE 880's and the highest IDC I have seen is 65% on race gas with boost hitting 28psi.

If I were you I would get 660's at least. That should give you plenty of pump gas room and definately enough room on race gas if you decide to use it.

FMIC is a big plus but not necessary if you plan to only run 15-16psi. Bigger fuel pump and/or a rewired pump is a must.

Just dont try to over do it and make sure you keep an eye on EGT's, WB, O2 volts or whatever you tune with.

how did you get into 11sec with evo, dude i need you to tell me that

 

[Stoner]

I dont want to clutter up this thread but basically the right parts, high boost, good tuning, and C-16

PM me if you have any specific questions.

 

[grizzly]

i just ordered a fmic from extremeintercoolers.com i got the 7in high one. they said its good to 450hp. and i am probably gonna get some 550s later this week. now i am still waiting for a real good solid answer on how it would be. or should i just go the safe route and go 650.
i am only gonna run 20psi track and daily so it should work right??

 

[Stoner]

How much price difference are the 650's or 660's? If its not too much then get the bigger ones.

 

[daren_p]

How much price difference are the 650's or 660's? If its not too much then get the bigger ones.

But what is he going to use for tunning? If dsmlink, then yes since all injectors are pretty much the same price go 750+ and don't have to worry about upgrading again if you eventually go with a bigger turbo, but with a piggyback such as the safc, you get too much advance with the larger injectors. I think most get away with 650's on it though.

 

[99gst_racer]

But what is he going to use for tunning? If dsmlink, then yes since all injectors are pretty much the same price go 750+ and don't have to worry about upgrading again if you eventually go with a bigger turbo, but with a piggyback such as the safc, you get too much advance with the larger injectors. I think most get away with 650's on it though.

I too would go with the 650's, just to be on the safe side. Plus they are only like $15-20 more. Why get 550's if you are dangerously close to maxing them out at all times, when you can get 650's and have lower IDC's.

All he would have to do is drop $100 on a Jeff O. chip to compensate for those 650's. Then use a piggyback for the rest.

 

[daren_p]

I too would go with the 650's, just to be on the safe side. Plus they are only like $15-20 more. Why get 550's if you are dangerously close to maxing them out at all times, when you can get 650's and have lower IDC's.

All he would have to do is drop $100 on a Jeff O. chip to compensate for those 650's. Then use a piggyback for the rest.

These chips are the same as dsmlink in the fact that you need to have an eprom ecu to start with correct? He's 98 so he will also need to purchase an eprom ecu.

 

[Stoner]

But what is he going to use for tunning? If dsmlink, then yes since all injectors are pretty much the same price go 750+ and don't have to worry about upgrading again if you eventually go with a bigger turbo, but with a piggyback such as the safc, you get too much advance with the larger injectors. I think most get away with 650's on it though.

Thats why I only suggested 660's because I have heard that most piggybacks should handle an injector of that size. I hate SAFC tuning but its cheap and can be effective if used right. I run DSM link and if someone has the money to buy it I wouldn't suggest anything else.

 

[99gst_racer]

These chips are the same as dsmlink in the fact that you need to have an eprom ecu to start with correct? He's 98 so he will also need to purchase an eprom ecu.

Yes, you are correct. He would also need an EPROM.

I've had mine for so long - I keep forgetting that not all DSM's have them.

 

[1gfromND]

Thats why I only suggested 660's because I have heard that most piggybacks should handle an injector of that size. I hate SAFC tuning but its cheap and can be effective if used right. I run DSM link and if someone has the money to buy it I wouldn't suggest anything else.

Agreed.......agreed......AGREED!!!!! DSMLink all the way. Sam

 

[daren_p]

Yes, you are correct. He would also need an EPROM.

I've had mine for so long - I keep forgetting that not all DSM's have them.

Well if he has to get an eprom ecu anyways, might as well go with dsmlink while he's at it . By the time you get an safc, logger and palm your basically at the cost of dsmlink anyways. Spend the extra couple dollars & do it right the first time

 

[CanadianTSi]

An S-AFC and 650's can go faster than most people on this board ever will.

Just get the 650's and be done with it.

 

[92GSXBaltimore]

evoXIII's run a better flowing version of the evoIII turbo and they have around 550cc injectors, people have gone as high as 24 psi in the stock injectors(~550cc)

 

[BGGSTin]

550's will be ok for the turbo on lower than 18-20psi but that depends on if the injectors actually flow 550cc's. Many injectors flow a little less than advertised for some reason or another.

I maxed out my buschur 550's pretty quick at 20psi (E3B16g) IDC's were in the 90's, which is too high for maximum tuning ability.

I now run PTE 880's and the highest IDC I have seen is 65% on race gas with boost hitting 28psi.

If I were you I would get 660's at least. That should give you plenty of pump gas room and definately enough room on race gas if you decide to use it.

FMIC is a big plus but not necessary if you plan to only run 15-16psi. Bigger fuel pump and/or a rewired pump is a must.

Just dont try to over do it and make sure you keep an eye on EGT's, WB, O2 volts or whatever you tune with.

What's the deadtime of your injectors, that must be playing a role here because I have FIC's with a 315 deadtime and I'm running 20 psi easy, if I pull its a steady 22-24 and if I stay on it 27-29 psi

 

[Stoner]

What's the deadtime of your injectors, that must be playing a role here because I have FIC's with a 315 deadtime and I'm running 20 psi easy, if I pull its a steady 22-24 and if I stay on it 27-29 psi

My 550's didn't seem to be flowing 550cc's, more like 500cc's and thats why I made the statement about some injectors dont flow what they are advertised at in my original post. If you are talking about my PTE 880's the deadtime is 300 usec with a global at -42 which makes them more like 775's but that is more than enough fuel.

And global setting is the one that determines how much the injectors are flowing not deadtime.

 

[Dream On]

evoXIII's run a better flowing version of the evoIII turbo and they have around 550cc injectors, people have gone as high as 24 psi in the stock injectors(~550cc)

Holy shit! The evo 13! Where have I been... I think 650's are good as well, up to you I guess.