Poll/ thread on how much boost you guys run daily... Enter

[spyderturbo007]

Was your dyno results on your avatar with this tune? If so thats kind of low

No, that was done a ton of mods ago.

The dyno was done before the MeOH injection while still on the stock cat back, stock UICP, stock O2 sensor housing & manifold, SMIC @ 17psi. That was about 2 years ago.

 

[JayRolla]

From the little bit of chip tuning ive done so far air fuel ratio seems to give the least gains in power so i keep it at a rich 11.1 which still gives some hp over stock afr but it allows more room for me to add more timing and boost than running 11.5 +. Im sure hardcore tuners could tune for 12.1s with a lot of boost and timing but I cant. General consensus appears to be boost adds the most power, then the correct timing adv, then afr and compression.
Id love if i could get 20 deg timing adv with 21psi daily w/ pump gas no meth and no knock.

With the 16g it may be hard to run that much timing at that boost level. My brother had pretty much your setup and had to pull timing with the EMS to run 20-22psi at 11.1 afr and no knock.

Now he has 1000cc injectors and running e85. He is running a 11.1 afr at 21psi with the stock timing map. They started to add quite a bit of timing still no knock. They turned the boost up to about 23-24psi and started to smell coolent. Blown head gasket. Now he is building a new head with 272 cams, ss valves and BC springs and retainers.

 

[eclipsegsx1736]

spyderturbo007, just remember that stoich for meth is 6.4:1 not 14.7:1. If youre using a WB that doesn't display lambda, you'll have to tune for a richer AFR than normal with meth injection. Its easy to tune too lean on bigger meth injection setups because of this.

You probably knew that already but thought I'd mention it.

 

[GSntncT]

Since my DSM was a daily driver, I ran at a very tame 10-12 psi, and was still able to manage close to 300 whp on a dyno. In my track days, I ran 22 psi, and dyno'd close to 390 whp.

 

[1bad92awd]

19psi, daily driven 57trim GST. 26psi is what I use at the track but the car rarely sees.

 

[Black_Bullet]

With the 16g it may be hard to run that much timing at that boost level. My brother had pretty much your setup and had to pull timing with the EMS to run 20-22psi at 11.1 afr and no knock.

Now he has 1000cc injectors and running e85. He is running a 11.1 afr at 21psi with the stock timing map. They started to add quite a bit of timing still no knock. They turned the boost up to about 23-24psi and started to smell coolent. Blown head gasket. Now he is building a new head with 272 cams, ss valves and BC springs and retainers.

Ive heard so far that stock composite headgaskets dont usually get munched till 26 +.
unless a lot of knock is in the picture. How much max timing was he able to get with a 11.1 afr @ 21 psi before he went to e85?

Since my DSM was a daily driver, I ran at a very tame 10-12 psi, and was still able to manage close to 300 whp on a dyno. In my track days, I ran 22 psi, and dyno'd close to 390 whp.

Nice, what turbo was this on.

 

[spyderturbo007]

spyderturbo007, just remember that stoich for meth is 6.4:1 not 14.7:1. If youre using a WB that doesn't display lambda, you'll have to tune for a richer AFR than normal with meth injection. Its easy to tune too lean on bigger meth injection setups because of this.

You probably knew that already but thought I'd mention it.

Actually, I'm glad you brought that up, since it's been a topic of huge debate lately.

Here is a thread I brought back from the dead awhile ago to get people's opinions. I also posted the same quesiton on another forum and received this answer from Kevin Jewer

If your WBO2 is calibrated to display gasoline AFRs, I don't think it matters what fuel you use. Go by gasoline AFRs. And stoich should be irrelevant since you're injecting at WOT. Unless you're going to display in Lambda, I don't think you need to be cocnered about all this. I reserve the right to be wrng however, on the grounds of complete and utter intoxication.

Now he was drunk at the time, but I would trust his advice drunk, over some people's advice sober.

If you're bored, bring back the other thread and post your thoughts. I just don't want to hijack this thread.

 

[JeffGST]

Daily Boost Level = 31 PSI
Fuel = E85
Turbo = T67-76BB
AFR @ 8500 RPM = 13.4 (Both Fuel Pumps are having a hard time keeping up)
1600cc injectors: Walbro255HP/Bosch 044 Combo

5 Day a Week car with an average of 100-120 Miles a week. I race it at the track with the EXACT SAME settings as I have on the street. No BS.

 

[Black_Bullet]

Daily Boost Level = 31 PSI
Fuel = E85
Turbo = T67-76BB
AFR @ 8500 RPM = 13.4 (Both Fuel Pumps are having a hard time keeping up)
1600cc injectors: Walbro255HP/Bosch 044 Combo

5 Day a Week car with an average of 100-120 Miles a week. I race it at the track with the EXACT SAME settings as I have on the street. No BS.

Now thats what im talking about !!!

 

[scottsee]

Actually, I'm glad you brought that up, since it's been a topic of huge debate lately.

Here is a thread I brought back from the dead awhile ago to get people's opinions. I also posted the same quesiton on another forum and received this answer from Kevin Jewer



Now he was drunk at the time, but I would trust his advice drunk, over some people's advice sober.

If you're bored, bring back the other thread and post your thoughts. I just don't want to hijack this thread.

I remember that thread, That was probably the most difficult thing I ever tried to figure out on a DSM in the 4 years I have been doing this.
As far as Kevin goes. That guys the Smartest DSM'er I've ever had the plesure of learning from.

 

[95CarbonEclipse]

8psi evo316g stock slipping clutch.

WOW... i didn't think you could even run an EVO III that low.

I'm running 14lbs. on my EVO III 16g with an all stock fuel setup.

 

[Black_Bullet]

WOW... i didn't think you could even run an EVO III that low.

I'm running 14lbs. on my EVO III 16g with an all stock fuel setup.

I believe it has a 7 or 8 psi actuator. In my old gst I could see as little as 8 psi if i wanted.



I like to hear how aggressive ppl are getting with their boost levels and tunes on just pump gas only.

 

[Enraged78]

21 PSI Daily. 93 Octane, 780cc Injectors, 11.1 : 1 AFR, 20 Degrees timing advance, 8.7:1 compression, E316G, 360cc/min H2O/Meth injection, no knock. Ever. It just barely starts to knock at 23 PSI, so I backed it off a little.

At the track, I run 104 octane unleaded with the meth, and can run 25/26PSI on the E3, which DSMLink states makes 454HP at the crank.

Hopefully, I'll see you all at the shootout.

Matt.

 

[daren_p]

I started the summer running 21 psi daily & now I currently run raight around 23psi. Last time at the track ran 25-26psi on pump, with a small M5 meth nozzle & a bottle of NOS octane booster, too not have to worry about pulling timing to prevent knock from my daily tune.

 

[Car Cannibal]

PSI= 24
Timing= 24
Fuel= 100 ( 110 and 93 mix )
WOT AFR= 11.8
Turbo= PTE6152S
Injectors= FIC 850's at 68% DC

No knock and daily driven with 10-12k a year!!

 

[Black_Bullet]

Im definitly going to have to do some more meth injections research... Appears almost everyone whos posted on my thread are running the kind of timing advance id like to get out of a 21 + psi boost level with nice afrs and no knock because of meth.
I just wanted a consistent tune without worrying about something running out on me thats why i was trying to just get a solid pump gas tune but now im definitly convinced what im missing out on... My old motor might not like 24 psi w/ 22 deg timing advance type daily tunes though? Well thanks for all the post.

 

[daren_p]

Im definitly going to have to do some more meth injections research... Appears almost everyone whos posted on my thread are running the kind of timing advance id like to get out of a 21 + psi boost level with nice afrs and no knock because of meth.
I just wanted a consistent tune without worrying about something running out on me thats why i was trying to just get a solid pump gas tune but now im definitly convinced what im missing out on... My old motor might not like 24 psi w/ 22 deg timing advance type daily tunes though? Well thanks for all the post.

Meth injection is defently a big help in the, getting the most out of pump gas department. My FP1X cams are very knock happy with pump gas. Pre meth I was limited to about 18 psi & ~14 deg timing (had to pull a bunch of timing with dsmlink). Just running a small M5 nozzle had allowed me to up the boost to 22-23 psi & see ~17 deg timing without knock. I plan on upping to a M10 nozzle when I get around to it so 25-26 psi on pump with even more timing, if I want, shouldn't be an issue.

 

[myblack98gst]

30psi 50 trim daily on 114 octane race fuel... BUT the car gets about 40 miles a month... it is fun to spin tires and put the car sideways rolling into boost in second gear though!

 

[Black_Bullet]

Meth injection is defently a big help in the, getting the most out of pump gas department. My FP1X cams are very knock happy with pump gas. Pre meth I was limited to about 18 psi & ~14 deg timing (had to pull a bunch of timing with dsmlink). Just running a small M5 nozzle had allowed me to up the boost to 22-23 psi & see ~17 deg timing without knock. I plan on upping to a M10 nozzle when I get around to it so 25-26 psi on pump with even more timing, if I want, shouldn't be an issue.

Ouch... Those x series must really be dramatic in terms of increasing cylinder pressure.
Sounds like at least a 40whp gain from using the meth on your set up.
Ive always thought about meth and with the little bit of knowledge i have reguarding it I knew what it was capable of, but didnt ever consider being subject to using it. I didnt realize it was used this commonly among the dsm community w/ such great and consistent results. Id be happy if I could just run 21psi w/ 20 deg timing advance w/ meth but that would be asking nothing of meth it seems. I guess this thread turned into why you should use meth on your pump gas tune daily... Lol

30psi 50 trim daily on 114 octane race fuel... BUT the car gets about 40 miles a month... it is fun to spin tires and put the car sideways rolling into boost in second gear though!

I bet, but i wouldnt know i can only spin all fours with the ground wet.

 

[daren_p]

If you asked the same question even a year or two ago, I don't think there would have been a tonn of guys saying they use meth. It seems to have become alot more popular with our setups in the recent past. Now it seems that everyone running over 20psi daily runs meth

 

[95CarbonEclipse]

Maybe the better question would be... do people run max boost daily or do they lower they're boost level for daily driving. Just because I only run 14 lbs. doesn't mean that I wouldn't run 20 if I could. But for people that can run 20... do they run it on a daily basis. It sounds like so far, most people that can... do. I'm just curious if some of these 17's would be higher if the question was re-worded?

 

[FonZ454]

21ish psi spike, dropping to around 18psi... Sometime's it'll spike to 23 (when I'm messing with stuff) but usually keep it around 21 psi. lots of knock. 16* advance, and a fat 10.6ish AFR. My car sucks.

 

[Black_Bullet]

21ish psi spike, dropping to around 18psi... Sometime's it'll spike to 23 (when I'm messing with stuff) but usually keep it around 21 psi. lots of knock. 16* advance, and a fat 10.6ish AFR. My car sucks.

If you have lots of knock its probably because of that 23psi spike, if you could tune for 23 then the spike wouldnt effect you... OR you could get it to NOT spike to 23 ever ( useless your messing w/ your boost controler that is.) Ive seen up to a 22 psi spike when it was set on 20lbs but it only occured in a hard 5th gear pull on a cold night?
Anyways Ive managed to do 11.1 afr w/ 19 degs timing and 20 psi pulls with a average of 6 to 7 counts of knock in 3rd gear on my 16g; so thats funny that you knock with only 16 degs timing and 10.6 afr on 21...

 

[DSMSpyder99]

Greddy Profec Type-S

Low 9-10PSI (commuting to school and work)...High 19PSI...an extra ~100HP on a push of a button make me face go from this to this

 

[snooopy365]

running 16ish PSI (Boostcontroller is showing ~19, boost guage ~16) on 14B @ 98 Euro octan (should be kinda 93)

have some not boost related knocking and running 15-19 degrees timing.