limits of walbro 255 pump, 600hp
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good thing that nitrous was no longer on the car eh? Maybe the fact that there are over 12K reported issues with the factory soft fuel hose from the firewall rubbing on the engine covers and the firewall itself? Gee, maybe there were 8K braided, abrasion resistant hoses sold in the first 2 months after i reported this problem on the GTO board? up yours
for logging the torque, there is no actual sensor, it is a value calculated using various inputs. The engine crank pos. sensors hall effect (crank acceleration/deceleration= torque ripple) is processed with cylinder airmass vs rpm and load. This is the way i understand it.
Basically, if you log trans delivered torque, advance, KR, MAP, dynamic cyl air, RPM, TPS, speed and O2mv, you basically have a rolling dyno. Though it may not be accurate, once you have a baseline, as far off as that may be, any gains shown through the same calibration are tangible as real world gains. As i said in the first post, accurate or not, im logging this for tuning purposes, and it just so happens that i thought it would be fun to share it. This same process has been used by many many people and shown to be over 90% accurate in all situations that were tested and compared on an actual dyno. BUT, since it is a calculation based on airflow measurements, you must have a fairly accurate VE table for it to work, i.e., the closer your tune is, the more accurate the readout is.
Too bad im a d-bag though, everyone disregard this statement cause i dont know how to work on cars, shit, i bet my entire car is gonna fall apart tomorrow since i did a complete frame off on it by myself. such a shame.
Gary -
KA-T_240;166135 wrote:
So, what is going on in this thread? First talking about maxing out a fuel pump, now this has turned into a thread compairing E-penis size.Who gives a shit, let him think what he wants, if he is proved wrong later, so be it. Also dealerships don't always to the best work you can possibly get, yes they are "factory trained" or what ever, but they still dont always catch everything or get everything back the way it should be.
well im not sure what the thread started as but i took some of the comments as a personal attacks on somebody i consider a friend so i steped in to defend
also do u have any idea how many cars are serviced in a gm dealership in a day? do have any idea how many customers dont tell the entire truth about there cars issues?
its funny how the automotive repair field is viewed by outsiders, have u been to doctors office lately? have they diagnosed ur problem the first time everytime correctly? even when a "speacialist" that deals with one part of the body day in and day out still cant figure out and can charge what ever they feel like that dayand yes if calling bullshit on the internet makes my e-penis larger then by calling bullshit in the real world should by now make my real world penis 16.19365 miles long (according to my data logger)
thats it for tonight, i'll check back tommorow to see how many other geniuses put their 2 cents in
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the compairson of a buick and an acura is hard to do in general you are probally both right so lets just leave it at that
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Turbo5Oh;166127 wrote:
might wanna check ur info before u start sounding like an idiot.
have u seen gsr's 60 foots? have u drivin a truely fast car? i know the answer to these by ur comments in ur post. driving a 10 sec car is a little diff then ur 15 sec car. did u know that holding a turbo 5 speed car on the rev limiter through the shift holds boost pressure? which in return brings little to no turbo lag? but then again by ur comments u have no idea whats ur talking aboutthere is alot of assumtions about nicks car. yes he makes a lot of power, yes that much power in a non fwd street car would provide faster ET's
You are right that i havn't driven a "fast" car. Is there a club i can join when i do hit the FAST times??? if so let me know where it is so i can join... also i didn't know you had to run "fast" times to point out obvious things that are wrong about someones set-up? but i will stop here as i don't know anything and shouldn't be taken seriously....:icon_thumleft:
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DrifterExtreme;166143 wrote:
You are right that i havn't driven a "fast" car. Is there a club i can join when i do hit the FAST times??? if so let me know where it is so i can join... also i didn't know you had to run "fast" times to point out obvious things that are wrong about someones set-up? but i will stop here as i don't know anything and shouldn't be taken seriously....:icon_thumleft:
Yes, you vehicle is considered FAST once you enter the 9.0 second range(had to eek myself in there :p). No one else is FAST. The meetings for the FAST club is on Wednesday nights.Once Matt hits the 8s, he will have different meetings on Friday nights.
BTW - this is a joke, no panties are allowed to be in a bunch about this post.
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best post I've ever seen from Ethan.^^^
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the calculated torque tables from the factory are for the factory settings- They become less and less accurate as the HP increases and can limit you if that table is not properly set up. The GM PCM has a max calculation of 639.9. The electronic throttle cars will actually close the throttle blade if you try to use factory calc torque. If your fuel pressure is 58 with a boost reference, the fuel pump you have probably shouldn't be falling off unless you have a line/hose restriction. Your car will make good power the way it sounds, but it's almost like there is a PCM related issue that is leaning it out... the calc airflow and calc torque tables need to replicate your new set-up (i presume you are using a maf with a stock pcm)? I saw a guy talk about it on hot rod tv one time, I think thats what he said..>:icon_thumright:
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Haha! Who needs a trailer when you can throw a 4L80E in the truck bed!
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DrifterExtreme;166143 wrote:
You are right that i havn't driven a "fast" car. Is there a club i can join when i do hit the FAST times??? if so let me know where it is so i can join... also i didn't know you had to run "fast" times to point out obvious things that are wrong about someones set-up? but i will stop here as i don't know anything and shouldn't be taken seriously....:icon_thumleft:well this post is already way off topic so with ur infinite wisdom of building 15 sec cars will you kindly shine some light on what u believe is wrong with the gsr's setup? and if u believe that u could set it up better why dont u go a head and build something worth a shit and prove me wrong.
and yes there is a club u can join its the international i think i know everything asshat association also know as the IITIKEAA
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