FAST Classic - Jan 1, 2017
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Steve --
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FAST Classic - Jan 1, 2017
Boost leak you feel, or see on the gauge? If latter, bad gauge?
Steven Frank
Class M3 Miata
Proud disciple of the "Push Harder, Suck Less" School of Autocross
______________
I'll get to it. Eventually...
Class M3 Miata
Proud disciple of the "Push Harder, Suck Less" School of Autocross
______________
I'll get to it. Eventually...
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Loren Williams
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FAST Classic - Jan 1, 2017
Okay, after looking at your dyno sheet, from a realistic and autocross perspective:
You're talking about 0.5 psi (of about 14 psi) of boost. Unless the car is mysteriously running lean under boost or has an ignition timing problem, it's SAFE to autocross, and that half-psi isn't going to make a difference on course. (don't make me play the FASTiva card... 63 hp)
From a technical perspective, I'd consider that it might not be a leak. What other things can effect peak boost? Car probably has electronic boost control, what inputs affect it? Maybe you got some bad fuel? Maybe your plugs are getting worn? Maybe the knock sensor is picking up a tiny bit of knock at 4k for one of those reasons, and dialing back the timing... which reduces power output, which reduces boost?
But, I'm not a turbo guy, so that's all I got.
If the car isn't going to blow itself up, autocross it!
You're talking about 0.5 psi (of about 14 psi) of boost. Unless the car is mysteriously running lean under boost or has an ignition timing problem, it's SAFE to autocross, and that half-psi isn't going to make a difference on course. (don't make me play the FASTiva card... 63 hp)
From a technical perspective, I'd consider that it might not be a leak. What other things can effect peak boost? Car probably has electronic boost control, what inputs affect it? Maybe you got some bad fuel? Maybe your plugs are getting worn? Maybe the knock sensor is picking up a tiny bit of knock at 4k for one of those reasons, and dialing back the timing... which reduces power output, which reduces boost?
But, I'm not a turbo guy, so that's all I got.
If the car isn't going to blow itself up, autocross it!
Loren Williams - Loren @ Invisiblesun.org
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
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FAST Classic - Jan 1, 2017
Philip -- what's this "fun run" nonsense!? The band is showing up...if we can get Jason out of bed, we'll have the ES/S4 power in central Florida gathered in one spot! Better than the state championships!
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Soraya Juarbe-Diaz
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FAST Classic - Jan 1, 2017
Ugh... I hate unsolved puzzles. If this were a problem in any other field where I had expertise... look at which parts have components that I can not visually inspect or technically test and replace them one by one starting with the cheapest / easiest one and see which solves the problem? I have been learning that working on cars requires some unorthodox voodoo skills. 
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Doug Adams
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FAST Classic - Jan 1, 2017
Dirty air filter or obstruction on inlet side like leaves, mice nest, a shop rag or old Mustang parts? Sucking air on inlet side?
Blow off valve not staying shut under full boost (like Loren said)? Pull off blow off actuator hose (assuming they still use that?) and plug should over boost then. If it's all electric I have no idea. I thought these new Fords all have 20 second over boost built in?
Blow off valve not staying shut under full boost (like Loren said)? Pull off blow off actuator hose (assuming they still use that?) and plug should over boost then. If it's all electric I have no idea. I thought these new Fords all have 20 second over boost built in?
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Loren Williams
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FAST Classic - Jan 1, 2017
There are now FOUR entries available in this event. Don't say nobody told ya.
Loren Williams - Loren @ Invisiblesun.org
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
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Steve --
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FAST Classic - Jan 1, 2017
Didn't notice the dyno plot...never mind.Native wrote:Boost leak you feel, or see on the gauge? If latter, bad gauge?
Steven Frank
Class M3 Miata
Proud disciple of the "Push Harder, Suck Less" School of Autocross
______________
I'll get to it. Eventually...
Class M3 Miata
Proud disciple of the "Push Harder, Suck Less" School of Autocross
______________
I'll get to it. Eventually...
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David Lineberry
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FAST Classic - Jan 1, 2017
Where is all the S1 guys... seams they all left...
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Keith Davis
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FAST Classic - Jan 1, 2017
I'm running a Cobb AP3 so I'm able to log all of those different parameters. I'm not seeing any abnormal negative ignition timing corrections, or knock, I haven't pulled the plugs yet but they are only 6-8mos old. It shouldn't be a fuel issue, ran down two tanks of gas and E85 blend from two different stations. I checked the BOV for air leaks when I used the compressor. I guess I could pull it off, clean it and reinstall
As far as boost though, the graph for boost psi is to the right. I used to peak at about 22.5, right now I'm peaking about 21.5 and it goes down to about a 3-4 psi drop overall. basically the "sneaky leak" is bringing me down to stock numbers. Mid 270's WHP down to 240's.
I need all of the go fast advantage I can have to be competitive in M2, but I guess as long as the car is "safe" to drive and I'm not gonna break anything, it's all about having fun right?
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As far as boost though, the graph for boost psi is to the right. I used to peak at about 22.5, right now I'm peaking about 21.5 and it goes down to about a 3-4 psi drop overall. basically the "sneaky leak" is bringing me down to stock numbers. Mid 270's WHP down to 240's.
I need all of the go fast advantage I can have to be competitive in M2, but I guess as long as the car is "safe" to drive and I'm not gonna break anything, it's all about having fun right?
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Loren Williams
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FAST Classic - Jan 1, 2017
What you really need to do is wrap your head around the fact that even in M2, it's NOT all about horsepower. This ain't drag racing.
Classic events are all about fun and practice! Just like you spend time between points events tuning your car to improve your horsepower, you need to tune YOURSELF between points events to improve your skills. Guess which one is going to make more difference in your time?
"It's not how fast you go, it's how little you slow down."
Classic events are all about fun and practice! Just like you spend time between points events tuning your car to improve your horsepower, you need to tune YOURSELF between points events to improve your skills. Guess which one is going to make more difference in your time?
"It's not how fast you go, it's how little you slow down."
Loren Williams - Loren @ Invisiblesun.org
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
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David Lineberry
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FAST Classic - Jan 1, 2017
I would argue that the extra HP hurts you sometimes more then helps, AutoX is more about proper line, not slowing down etc. I'm finding out that all this extra power just pushes me off line and puts me in bad spots...
.....that said... omg it's awesome...
.....that said... omg it's awesome...
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Keith Davis
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FAST Classic - Jan 1, 2017
lol I totally agree, I just use the extra power as my crutch because I'm still a newbie AutoX driver who definitely slows down and mashes the breaks when I should still be on the gas.. it's scary going fast! 
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Freakin' Drew
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FAST Classic - Jan 1, 2017
Read this: http://www.miataturbo.net/diy-turbo-dis ... ebc-47532/Kdub085 wrote:I'm trying to track down a sneaky little boost leak!!
Any thoughts?
See how yours is plumbed. May be what you are seeing?
Or not.
Loren wrote:Freakin' Drew and his freakin' Mustang.
dan wrote:Freakin' Drew and his freakin' Miata.
Rawkkrawler wrote:Freakin’ Drew and his OTHER freakin’ Mustang!
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Keith Davis
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FAST Classic - Jan 1, 2017
Hmm... makes a lot of sense thanks!
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Randy Barrera
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FAST Classic - Jan 1, 2017
Your car has so much going for it with you driving it, theyre waiting for you to make like a Ford and have the wheels fall off. go race SCCA, sandbagger lolRedBRZ80 wrote:Where is all the S1 guys... seams they all left...
if my schedule allowed, id actually race a season and learn to drive. I've had this car a year and have entered in a hand full of events but no actual prior experience with a RWD car.
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David Lineberry
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FAST Classic - Jan 1, 2017
^i hope that's not the reason for the small field.. good competition really help float all boats.
But yes, I'm going to be hitting up a few Ftmyers events prior to the ProSolo in march. / juggling multiple clubs and venues is half if the fun I guess right ?
But yes, I'm going to be hitting up a few Ftmyers events prior to the ProSolo in march. / juggling multiple clubs and venues is half if the fun I guess right ?
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Loren Williams
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FAST Classic - Jan 1, 2017
S1 has never been a big class with FAST.
Loren Williams - Loren @ Invisiblesun.org
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.
-
Doug Adams
- Notorious
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- Spring Hill
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FAST Classic - Jan 1, 2017
It's not the size of the wand that determines the magic it can perform. S1 is an ever changing class because the SCCA keeps moving cars in and out of BS in particular. I had a 90 Talon AWD and Mitsubishi Conquest Tsi both in BS for a couple years running against 944S2 limited edition/rare Porsche's. The big money still says the C5 is the car to have at the National level. It's up to the FOCuss to prove them wrong. The Boxster S is moving out to CS in 2017 Nationally and a gaggle of Porsche are moving down from AS (S1 doesn't care.). It won't surprise me if they put one of the brand new 1LE Camaro's in BS for 2017. ^^^NONE of this affects FAST who's season has all ready begun at least not until Sept.RedBRZ80 wrote:^i hope that's not the reason for the small field.. good competition really help float all boats.
But yes, I'm going to be hitting up a few Ftmyers events prior to the ProSolo in march. / juggling multiple clubs and venues is half if the fun I guess right ?
If we used the proposed D.L. scoring method he would only get 2 pts for winning if he can win against that S2k? Courses do make a difference sometimes. I'll be on a really big ship with wife for that whole week. Will have a needed designated driver. See you Jan 14th. Let the competition begin.
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Dave --
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FAST Classic - Jan 1, 2017
I'm bringing a different car for fun. I'll use the focus again in the futureRedBRZ80 wrote:^i hope that's not the reason for the small field.. good competition really help float all boats.
But yes, I'm going to be hitting up a few Ftmyers events prior to the ProSolo in march. / juggling multiple clubs and venues is half if the fun I guess right ?
-Dave
I drive really slow cars... really slowly.
I drive really slow cars... really slowly.
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Andrew Wong
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FAST Classic - Jan 1, 2017
bringing that graffiti ITR?Dave-ROR wrote:I'm bringing a different car for fun. I'll use the focus again in the futureRedBRZ80 wrote:^i hope that's not the reason for the small field.. good competition really help float all boats.
But yes, I'm going to be hitting up a few Ftmyers events prior to the ProSolo in march. / juggling multiple clubs and venues is half if the fun I guess right ?
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