s60 psi limit on +20's

[Anthonytad1985]

Hi i have a 2.5 8v with ported everything +1 valves , 53 TB and a stage 3 cal from fwdp set up for my +20 injectors. I just got a super60 turbo stage 1 .63, i wanted to know what is a safe psi limit for the +20's.
Thank's

[GLHNSLHT2]

instead of getting guesses and because every person's setup is just a tad different I recommed you look into gettting a Wideband Air/fuel setup. Innovatemotorsports.com has the sensor and controller that you can hookup to a laptop and datalog or watch their virtual gauge for $199 off their site or I saw one on Ebay the other day for $179 new. You can get a gauge for it for about $90 if you want something to look at without having to have the laptop plugged in. This way you can see if your cal is too riche or too lean at whatever boost you're running or at cruise or anywhere in between etc.

[Anthonytad1985]

yeah i have a lc-1 i am just wondering if i am wasting time and should look into getting +40 i want to stay in the 15 psi range for now.

[BadAssPerformance]

...and a stage 3 cal from fwdp set up for my +20 injectors.

I think your answer lies in your question... need to talk to whoever made the cal. I'd say 15psi should be OK with a stock cal or MP cal, but aftermarket cals need to be discussed with whoever made them.

[Anthonytad1985]

I talk to cindy she said 15 should be ok i was just wonding if anyone has had issuse with leaning out with the 20's. But like said my cal is set up for the +20's so i gusse cindy would only really have a idea.

[BadAssPerformance]

A lot depends on the cal and the rest of the setup. I have run 27psi on 42pph (+20%) in my Shadow, but that is with a MP Stage 2 cal and pretty much stock everything else... also on 100 octane. Lots of variables, each car is different

[Ondonti]

Just matters how much horsepower the injectors can support at whatever fuel pressure you are running.

Boost is not going to get you a very exact answer unless you have the same exact setup and cal as someone who aleady found the limit.

I love my wideband but I think its not a smart idea to use your wideband to test and see when your injectors are leaning out unless you are really really really really careful and you go really slowly. Bad idea if you are not datalogging IMO.

I dont like the idea of maxing injectors but a lot of people get away with it.

[Keito]

I have to say your fuel pump setup will have a big effect.

[tryingbe]

Do you really want to risk your engine because you're too cheap to buy +40 injectors and calibration?

[BadAssPerformance]

You risk your engine any time you buy a calibration by mail.

Even the MP cals can cause damage if not used properly.

[turbovanman²]

You risk your engine any time you buy a calibration by mail.

Even the MP cals can cause damage if not used properly.

You can as every cal isn't perfect, some are close, some are way out. Guages, dyno, track time are your friends,

[Anthonytad1985]

Do you really want to risk your engine because you're too cheap to buy +40 injectors and calibration?

I am going to get the inj. map amd cal as soon as i get the $$ which will be shortly. I just bought a tranny and TC from TU and got a new S60 with swingvalve and can for $520 (not from TU). So in the last 2 weeks i have spent about $2000 on the car. I am installing everything on wen-thur so i was just trying to see if i could get away with my cal (stage 3 fwdp) with 15psi for now. So i have decided i am going to start it out a 10 psi bosst and 65psi feul pressure and go from there untill i can get the new parts.

[cordes]

Just start out at about 7-10 PSI, and leave the FP at stock levels assuming that your cal is designed for +20s. Adding 10PSI of fuel across the board is really not the way to go.

[Anthonytad1985]

My cal is for +20. your right anding fuel is not the way to go .I will start at 7.

[GLHNSLHT2]

since you have an LC-1 go for it. Start out at stock FP like said, and just raise the boost up a psi at a time.

[moparzrule]

+20's are capable of 300 WHP or so safely, at 15 PSI you will have no issues of running out of fuel with a super 60 turbo.
Did you upgrade the fuel pump?

[Anthonytad1985]

yes i got a 255 high pressure. so 300 is good cool i only want to run 15 psi for now. Thanks

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