upon reviewing B reals questions and answers that were given on CSTC.

i too am confused by the situation.. the numbers i guess...

but b real would be correct in saying the physics are off.

 

i talked to several very well known ppl on the phone today lmao.. they all came to conclude that teh dyno had to be miss calibrated.. i mean 12.5 psi.. t3/t4 turbo, no meth, lower comp, and 426whp ON A MUSTANG? thats like 450 dynojet.. thats insane.. and 450whp with 650cc injectors and no return setup? wouldnt u be running out of fuel by then? i didnt create the thread to bash but im just saying this is the highest hp tc with that pressure rating weve seen to date.

 

Yes it's a bit off, Chad. His turbo is smaller than yours too.. he has a 60 trim.. you have a 60-1.

 

Master power 60-1 ftw!!!!

 

no i made the thread on here because the ppl on SL are alot more knowledgeable about FI than people on CSTC. i wanted input.

 

he doesnt have a 60-1 its a 60 trim t3/t4

 

Chad Marcelo is saying 60-1 FTW because both of you have that turbo and it's bigger than the OP on clubsciontc.

 

Btw are you drinking tonight, Chad?

 

am i drinking? umm probably, but obviously im not taking my car out.

 

haha nevermind chad.... nevermind.


lol

 

wats it matter.. we wont even come close to the OPS numbers on 12.5 lbs even with meth.. lmao.. ! Joey the kid that pulled a z06 with a garret 60-1 same size as us made like 450 on 22 lbs...

 

If you calculate the CFM for a boosted tC with a stock motor, 10 psi = roughly 396CFM, which equates to around 270HP, give or take depending on temp, timing, blah blah. On a new head and 12.5 PSI (assuming he peaks at around 7500RPM), he's flowing roughly 520CFM, which is about 350HP. If he has lower compression pistons, which I thought I saw something about that, that's more likely 330HP. There isn't an extra 100WHP to find in tuning, you simply cannot make that many alterations if you're not flowing enough air. No one ever takes CFM's into the equation. More CFM = more power (assuming matching fuel). More boost != more power. And since my math is right, he's not flowing anywhere near enough air to make 426WHP.

And if you want to do the math yourself, feel free to test out the equation on ANY vehicle. I did it for the stock tC and came up with 157HP. Did it for my tC and came up with 283HP.

(CID*PeakRPM*Volumetric Efficiency*Pressure Ratio)/3456

VE is generally around 88-90% for late model cars with a DOHC 4-Valve valvetrain. And to get the Pressure Ratio, (14.7+Boost)/14.7

That gives you CFM. It's not 100% accurate, but to get HP from CFM, it's generally (CFM)/1.5. It's more of a rule of thumb than anything.

*Note - I used 7500 because I'm fairly certain that's what PTuning's head revs to, and I don't know of any heads that will rev higher than that.

 

chad no one is arguing that. Marcelo was just saying 60-1 FTW cuz you guys have that turbo...

 

finally someone came out and said it lol.

 

Yes, Carb you are correct.

Not to mention his built head was only limited to stock 6200 redline as mentioned in one of his posts (response to my question).

I definitely see a BS flag on the horizon.

 

This is one of the only things that I actually remembered from school. I even have my notes for calculating CFM, reading turbo maps, etc. You can apply that formula to any car and it will come within ~3% of the manufacturers claims.

 

i already called it. hence why the post is made. rob stop picking on me and giving me attitude because ur car isnt tuned man, if ur mad at luiggi or dislike him dont take it out on me. not cool. btw he said hes tuning ur car this upcoming week.

 

Assuming you know the true VE of the engine at given rpms.

that's the hardest part of the formula. I've used this tool for years.

 

Whoa buddy! Where did that come from?

I was laughing because if the things you posted...

You posted that you thought dyno'ing in 4th gear was weird.. and didn't know why he did it.

You then "corrected" Marcelo for something that he didn't even mean... hence why I was asking if you were drinking... more of a joke than anything.

And yes my car is tuned.. tuned by me. Go ask Luiggi if he tried to use an OBD-II scanner to tune my car.. cuz he didn't and yet he was trying to tune my car in closed loop. Also ask him how he didn't know what to say when I asked him about modifying the injector response time.

lol, you've got some growing up to do.

 

There should be no BS flag because I've already completely disproved the possibility. If he's only revving to 6200 RPM, then he's making...about 300HP on 12.5PSI, which is a VERY realistic number for a 60 trim on 12.5. If they milked every HP possible out of it from tuning, I'd say 320 MAX. There is no possible way to make an extra 130HP from tuning. The only factors in tuning, are fuel and timing. THAT'S IT. You can only pull so much timing before it goes boom boom, and there's no point in aiming for anything other than a 12.5AFR. The only other factor involved in tuning, is the dyno.