Lots of boost and methanol

Wojomojo

New member
Still doing some data logging with Torrie but my car is running insane right now with a 80/20 blend of methanol. The entire first gear chirps tires and the beginning of second too. Pulls extremely hard all the way through past 100.

So right now I'm hitting 21-22 psi on stock turbos. I had no idea they could hit that?! Still have zero knock and car's running 15 degrees cooler under wot than before methanol (also added a 170 thermostat). Here is a picture showing 21.9 psi of boost (used to see 16.5 before meth)

292d2021feebcc3fb833aba4a60f3758.jpg
 
Glad to see your meth kit is working out. Have you tried 100% meth yet? Im running 90%m 10%w.

I see boost levels in that same area and sometimes higher even.
 
Haha will do I'll upload a data log tomorrow. I haven't tried 100% yet. Torrie said he generally likes to do 80/20 so I figured I'd try that out and so far so good. From researching most say 80/20 is the best in most cases because of various reasons.
 
The turbos may become more inefficient at over 18 psi but it's not like u hit a brick wall...I run them to 20 psi everyday and I don't use meth or any of that stuff....the meth helps and is good I'm not arguing that I just prefer to keep mine simple for now
 
AHH!!!!!  I want meth so bad!

I am waiting for two more pieces to the puzzle before I can take the plunge:
pre installed bung on a noise-eliminator pipe
reservoir large enough to be useful, designed and installed where the factory intake box would be (the space the MDesign intake frees up... also, I need to buy the MDesign intake :)
 
SHOdded said:
The 2x psi are spikes only, right?  The turbos (Garrett GT15-based for transverse) are quite inefficient at that point.  There's been discussions on here about the best "range", I believe the boundary is 18 psi.

http://www.ecoboostperformanceforum.com/index.php/topic,3387.msg52461.html#msg52461

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http://www.turbobygarrett.com/turbobygarrett/turbocharger#GT1548
When I hit 22 it's very briefly, but I do hang around in the 20s for a little while when it starts a new gear under wot. As the middle/end of 2nd and 3rd gear come the boost drops slowly down into the teens
 
I am curious to see how long these tiny turbos last at this boost level....I have toasted my share of small T series turbos boosting over their comfort zone.
 
Frozen Taurus said:
I am curious to see how long these tiny turbos last at this boost level....I have toasted my share of small T series turbos boosting over their comfort zone.

I feel bad for you...wonder what other mechanical problems may have contributed to your problems...I've never had turbo problems and I make them suffer....wonder how the turbos on diesel trucks survive?..same basic turbo design as far as the chra goes...they boost to the moon....even the guys that run 20 plus psi on these turbos don't spend a lot of time there
 
This just furthers the notion more that I need to datalog! What device are you using to datalog if you don't mind me asking? I'm stuck with all Apple products in the household so using a Windows based computer isn't really an option unfortunately, was thinking of picking up a cheap android tablet.
 
MDesign said:
This just furthers the notion more that I need to datalog! What device are you using to datalog if you don't mind me asking? I'm stuck with all Apple products in the household so using a Windows based computer isn't really an option unfortunately, was thinking of picking up a cheap android tablet.
x4 and a cheap windows laptop.

x4 is limited as to how many parameters you can log before it cries uncle...

In bridge mode with my laptop, I was able to log all 35 parameters Torrie requests.
 
ajpturbo said:
Frozen Taurus said:
I am curious to see how long these tiny turbos last at this boost level....I have toasted my share of small T series turbos boosting over their comfort zone.

I feel bad for you...wonder what other mechanical problems may have contributed to your problems...I've never had turbo problems and I make them suffer....wonder how the turbos on diesel trucks survive?..same basic turbo design as far as the chra goes...they boost to the moon....even the guys that run 20 plus psi on these turbos don't spend a lot of time there

Boost and shaft speed/vibrations are not mutual though ... A garrett T25 on my Talon ate itself up at 20 psi ...but my new GT35 is just getting started at 20 psi  :thumb:
 
Attached a datalog I ran today. Just a quick 0-100 run. This is still a work in progress though! We're continuing to up the boost as much as possible to still be safe. Mostly spikes in the low 20's as far as boost. Leveling out around 18-20 though for most of the time.

I use the X4 to datalog. I bring my windows laptop and use the livelink to datalog. That way I can just save the datalog from my laptop and it's done. There's no apple support from sct? That would suck. If you could just datalog on the tuner and then somehow get the logs from the device from the apple computer that'd be nice.

On a side note, if these turbos get fried, it's just a good excuse to upgrade to atp turbos! :)
 
Intake temps are amazing, 27 or more below ambient!  CAC temp not so good, rising above 35 mph?  FRP looks good at just about 2200 psi max, typical of the Gen 4.1 (4.2's run upto 2500 psi).  Almost 1/2 second to full throttle, easing in?  Coolant temps looking good, typical rise to 205F or so after WOT run.

You have done the PTU service, right?  Did you check and empty out the intercooler?  The liquid puddles on the other end of the IC.
 
SHOdded said:
Intake temps are amazing, 27 or more below ambient!  CAC temp not so good, rising above 35 mph?  FRP looks good at just about 2200 psi max, typical of the Gen 4.1 (4.2's run upto 2500 psi).  Almost 1/2 second to full throttle, easing in?  Coolant temps looking good, typical rise to 205F or so after WOT run.

You have done the PTU service, right?  Did you check and empty out the intercooler?  The liquid puddles on the other end of the IC.

What is gen 4.1 and 4.2?...and the fuel pressure isn't specific to year...it is configurable in the tune ...there are tables to change set point for fuel pressure...I guess it could be different in the different strategies but I think most tuners ramp it up earlier
 
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