I didnt think I could run this much boost..?

[xcelr8n]

hey guys, I was out this afternoon logging some good hard pull through 2nd 3rd and 4th, and heres what i've noticed. my car is basically stock aside from turboback, ported manifold, hard pipes, and my only fuel mod is a rewire on a stock pump.
now heres my problem, if you wanna call it that...
I can run like 17 psi on pump gas hard to redline, with no knock, and the cars still running slightly rich, about 19-20 degrees timing to redline as well.
How much can I push, Im not even maxing out injectors theyre close to 90% though duty cycle, but still I always assumed 15-16 was safe for a stock setup? is the rewire really doing that much... I guess what i'm asking is, can I run 18psi? can I run 19psi?
what are youre thoughts.
thanks

 

[peregrine]

are you at altitude? remember every car is different. i used to run 19 psi on pump with similar mods to yours. yes on the 14b.

 

[xcelr8n]

no altitude, pretty much at SL.

 

[CanadianTSi]

As long as your not knocking you should be fine, although you might be heatsoaking the IC a little quicker. running 94 octane?

 

[xcelr8n]

94 always...

 

[CanadianTSi]

94 always...

Gotta love Canada

 

[xcelr8n]

yup!
aside from the fact it is never cheaper then 84 cents a litre, I'll drive outta my way for the stuff though.

 

[TSIfreek]

What I would be conserened about is heat soaking the stock side mount. The 14b runs out of steam after 18 psi (with a side mount) after that its just not effficent. I would keep it at were you have it to be safe until you get a wide band on it (and more fuel mods) to see were your A/F ratio acually stands not just guessing. Guys do this all the time and end up buring exhaust valves.

 

[xcelr8n]

Ya, im thinking over the winter ym next mods are front mount, and a 190 pump, 19 or 20 psi on race gas, and some decent 12's next season on the 14b.

 

[lowridin2g]

Gotta love Canada

damnit, we used to have 94 octane only at sunoco stations. they ditched it and now they have 87, 89, 91, 93 instead of 87 89 93 and 94 like they used to . ive been using shell's new vpower 93 octane. every station has 93 octane around here, just sucks that sunoco had to ditch 94 octane

 

[Maglin]

with no SAFC or some form of fuel control you stock ECU will run pig rich at 9.5:1 in openloop... It varies by load and rpm but mostly what you are looking at is around 9.5:1... I redid my fuel maps and am going to be using 11.5:1 air fuel ratio once I get my motor back together... that is about as lean as you would want to go on pump gas.. With alk/water injection you might even be able to see 12.5:1 AFR but you would have to turn it spot on to get the most out of it... But that is probably why U see you are running rich.. I had the same problem... Once I figured out what was causing it my narrowband O2's went from .95 to .90 at WOT.... I'm going to get the LM-1 hopefully before spring so I can know for a fact what AFR I'm running...

 

[xcelr8n]

I have a maf-t, when it was 0ed out, I would get fuel cut at 4000 rpms or any real boost.
I had to lean it out 20% (4 clicks), and it pulled like a sob again.

 

[Black94TSI]

Gotta love Canada

Except that all we get in Alberta is 91 octane piss water :thumbdown

I know some Calgary stations are getting 94, but we're left in the dark.

 

[sweet97]

I LOVE NEW YORK!! For fuel anyways. 100 unleaded and 12 leaded in the summer. Lots of dirt raing around central NY. pricey though. Forgot what the 100 is but the 112 was $5.95 a gallon this past summer. 5 gallons of that mixed with the rest 93 Sunoco and it's a potentmix. i still run a 10.5 to 11:1 on the 93 as i am still trying to get the 50 trim to stop knocking at abything over 13 psi!! Idid notice my downpipe was touching thetransfer case but tightly so no rattle but it could be transferring exhaust "pulses" to the semsor. Anyone know the torque for installig a new knock sensor? Mark

 

[Mike000]

Except that all we get in Alberta is 91 octane piss water :thumbdown

I know some Calgary stations are getting 94, but we're left in the dark.

From what I heard, Husky is bring back the 94. Only at 2 location though.There are 6 huskys in calgary already with 94....

"We’re also please to announce the implementation of E94 into the Edmonton market at the following locations:

· Cherry Grove Husky – 15303 - 73A Street (Opening late December 2004)

· Anthony Henday Husky – 19828 - 62 Avenue (Opening late January 2005)"

 

[lowridin2g]

ever since i got my keydivers chip and i can see knock, i cant get rid of it. even at 20 psi with an o2 voltage of .98 i still get like 5-6 counts of knock. and since im back on the stock timing maps with this chip with 5-6 counts of knock, it will bring me down to 13-14 degrees timing advance at redline. i refuse to run anything under 22 psi on the 50 trim, cmon now its a big turbo meant for high boost numbers, and i also will not run a .98 o2 voltage, it is too rich. so ive decided to add 1 gallon of VP racing fuel 108 octane to every full tank of gas i get/ and or start making my own mixes of race fuel. it was sooo much better when i was lying to the ecu so much with just safc and i could get 18-19 deg advance easy and run 22 psi no problem. i dunno maybe it was knocking then also, but why would i get soo much timing?? everything has gone downhill since i got this damn chip (tuning wise) so its either higher octane than normal to stop knock or send back the chip and get a stage 2 where i can still see knock but my 650 injectors will not be compensated for so i can minus out a shitload on the safc again and see my 18-19 deg timing advance at redline with my 22 psi.

p.s. - im just frustrated with tuning right now. oh my car is not daily driven for all you guys that are gonna criticize on how expensive it will be to run the higher octane.

 

[peregrine]

ever since i got my keydivers chip and i can see knock, i cant get rid of it. even at 20 psi with an o2 voltage of .98 i still get like 5-6 counts of knock. and since im back on the stock timing maps with this chip with 5-6 counts of knock, it will bring me down to 13-14 degrees timing advance at redline. i refuse to run anything under 22 psi on the 50 trim, cmon now its a big turbo meant for high boost numbers, and i also will not run a .98 o2 voltage, it is too rich. so ive decided to add 1 gallon of VP racing fuel 108 octane to every full tank of gas i get/ and or start making my own mixes of race fuel. it was sooo much better when i was lying to the ecu so much with just safc and i could get 18-19 deg advance easy and run 22 psi no problem. i dunno maybe it was knocking then also, but why would i get soo much timing?? everything has gone downhill since i got this damn chip (tuning wise) so its either higher octane than normal to stop knock or send back the chip and get a stage 3 where i can still see knock but my 650 injectors will not be compensated for so i can minus out a shitload on the safc again and see my 18-19 deg timing advance at redline with my 22 psi.

p.s. - im just frustrated with tuning right now. oh my car is not daily driven for all you guys that are gonna criticize on how expensive it will be to run the higher octane.

if its not a daily driver then why screw around with pump at all? run 25-26 psi and race gas all the time.

 

[CanadianTalon]

if its not a daily driver then why screw around with pump at all? run 25-26 psi and race gas all the time.

Because most people do not have easy access to a gas station that sells race gas, most people also don't have their own garage to store a gallon of race gas on. Ont op of that, I know I spend 95% of the time on the street out of boost, so why waste race gas to run your 8:1 motor naturally aspirated?

 

[lowridin2g]

most people also don't have their own garage to store a gallon of race gas on.

i have 4 gallons in my shed right now. most people have a shed or a basement correct?????????

 

[Maglin]

ever since i got my keydivers chip and i can see knock, i cant get rid of it. even at 20 psi with an o2 voltage of .98 i still get like 5-6 counts of knock. and since im back on the stock timing maps with this chip with 5-6 counts of knock, it will bring me down to 13-14 degrees timing advance at redline. i refuse to run anything under 22 psi on the 50 trim, cmon now its a big turbo meant for high boost numbers, and i also will not run a .98 o2 voltage, it is too rich. so ive decided to add 1 gallon of VP racing fuel 108 octane to every full tank of gas i get/ and or start making my own mixes of race fuel. it was sooo much better when i was lying to the ecu so much with just safc and i could get 18-19 deg advance easy and run 22 psi no problem. i dunno maybe it was knocking then also, but why would i get soo much timing?? everything has gone downhill since i got this damn chip (tuning wise) so its either higher octane than normal to stop knock or send back the chip and get a stage 2 where i can still see knock but my 650 injectors will not be compensated for so i can minus out a shitload on the safc again and see my 18-19 deg timing advance at redline with my 22 psi.

p.s. - im just frustrated with tuning right now. oh my car is not daily driven for all you guys that are gonna criticize on how expensive it will be to run the higher octane.

Well how about you lean that biatoch out some.... You are probably running around 8.5:1 AFR right now if not richer.... Can't know for sure w/o a WB but you might be hitting rich knock. Aslo if this isn't a DD but it spends 95% of it's time on the street out of boost then WTF.. Why would you want to run 22+ PSI w/ knock??? Race gas is a total bandaid and you could end up with some broken powertrain parts... I would take it down to 18 PSI and turn it their and then once it's all Kosher w/o any knock start increasing boost and do some more fine tuning.. Jeff makes great chips... I'm sure if you where to contact him directly and tell him what is going on he might be able to help you out...

Also I'm pretty sure you where knocking before this chip if you leaned it out a bunch and only saw 18 degree of advance... I'm sure that put you up a load level or 2 which would probably put you on a timing map that caps at 24ish degree's or better.. So I would lower boost and tune then start raising it and fine tune.. First thing is to lean that puppy out some...

 

[lowridin2g]

yes i agree jeff does make excellent chips and a great guy to deal with no doubt about it. im just saying i may have been better off without getting the stage 3 which compenstaes for the size injectors you have.

i must say though the car runs great and my fuel trims are excellent with my safc in the -4 on the low throttle. ltft is at 0 and stft jumps around form -5 to 0 to +2. maybe i should try leaning it out more up top, i dunno. i am getting a wideband for xmas also. but i really dont think its rich knock mim getting, who knows. maybe instead of the -10 i have it at now on the highs on the safc ill drop it down to -20 and see how much knock i get then, if it gets worse, im sure it wasnt rich knock i was getting

 

[kyle h.]

20* timing is good. but you should see better. with my fuel turned up on the afc at 17psi i was getting like 24*

but to answer your question. you can run whatever your car likes, as long as there is no knock and it doesnt get too hot. be safe, have fun, all cars and engines and turbos and everything else is different, no matter how to spec they are.

 

[lowridin2g]

20 degrees may be a tad high with high boost applications, 24 is way too high for high boost applications. i would say the perfect number would be 18 adavnce at redline with little to zero knock at high boost and pump gas.

dont forgot your a 1g, your obviously going to see higher timing cause you 1g guys have more aggressive timing maps than us 2g guys.

 

[GSX_RCR]

How much can I push, Im not even maxing out injectors theyre close to 90% though duty cycle

Your injectors are maxed @ 90%+ DC. Well, reliably that is.