called ronnie... he says for sure it is at 290whp.... but.... He says he may have read the boost wrong??? He'd check the loggs?
It's all just numbers guys. About the only thing that can accurately gauge WHP is trap speed (with elevation accounted for). I'd still like to see the dyno graph.
I don't believe it neither. Just check the logs and the highest it showed was 13.09 psi. I think Putz has a secret he's not letting me in on. haha. But I really don't know why so high on the numbers.
I didn't realize that the VF39 could pull such numbers, perhaps it is more potent than I had thought.
I believe it. Peak HP is usually reached at around 6-6.5k on the VF39. Even with a tune that has 20+ peak boost, it still tapers to ~15-14-13 at peak HP. His really low torque number is the real side effect of the low boost. Peak HP/Torque numbers are only one part of the equation. What really makes a car fast is the area under the curve. Putz's car probably has a very flat torque curve, as opposed to a car boosting more that would have a much higher peak torque curve that tapers quickly. My real question is "why?" Ronnie, were you just being really safe? Why only set the boost targets @ 13 PSI?
um, why not use romraiders logger to really tell? When I took a buddy's car to RS to dyno, we noticed the boost was a little low. Fuji's car also.
I just don't see how 300hp is possible on 12lbs of boost with a vf39 using 91 octane with no other big power mods (yes, I saw the header/dp/up). I'm not saying it didn't happen I just don't know how it would. Am I missing something? If boost isn't pushing up the power, what is?
Dont have to fill me in. I'm full already. Just gotta get used to the way I talk and my meanings. There's no way I would trade my 18g for a vf39 even if they make about the same numbers.
yea your full alright full of .......jk those numbers dont seem right to me either I say do a highway pull like bullwinke(I think I was him) siggested.
WELL, I scanned a copy of the graph.... but I can't get it on here in jpeg format, only pdf.... cause I'm so good at that stuff....
so what you are saying is that since it would taper off anywho, the only real benifit of going for higher boost on a vf39 is the mid range powers? So this is why my graph seems so peaky on the hp side? So this is why it seems so flat on the tq side? and you are saying that it is possable?
Well, to an extent. Torque and HP are related. If you have more torque in the midrange, you have more HP at that spot in the RPM band. Thus, the higher your torque is throughout the RPM band, the faster the car will be, as it is accelerating faster throughout the RPM band. Not sure what you mean by this. HP always looks similar to your graph. Aside from that mess at 3.5k, your torque curve is relatively flat, so that means your HP curve will be fairly close to linear. Your torque is flat because your boost is flat. On our cars, the torque curve typically mimicks the boost curve.
Yeah, looks like there's certainly had some trouble at peak torque there. Ronnie, how much timing were you running through that area?
do you think that might be over boost? If the target boost was 12 psi... then it could be? it looks like that is also where I peak for boost.
+1. Bullwinkle here tuned me to 1.0 IAM across the board, car adding 6 degrees every place it could, and I'm boosting to 20psi at 3.4k on 92 octane. With those mods, I'm surprised you're not hitting 20+ and holding it until at least 4.5k before you taper to 18 and then ~14. btw, Bullwinkle, your tune is genius. If you're holding 12psi at 8k on a 2.5l, that'd easily be 290+whp. What he's missing is the insane 330+ torques that the VF39 can blow at 3.5k. I'd say we're even at whp (I think RomRaider pegged me at 285), but with all that boost left on the table (me at 20psi, you at ~13) I'm running 70-80 more torques than you in the midrange. And torque is what you feel, the fun stuff. And this is with stock fueling system (+walbro), stock UP, stock STi catback, STi TMIC. I'm running far far less mods and yet have a super-safe tune. "What gives?" is my question. In regards to the 3200 timing pull: I'm sure mine would do something similar if I was at that load at that RPM, but because I'm +5 psi, I'm running waay less timing due to more boost and therefore have the ECU pulling no timing. Perhaps increasing the boost will cure all your timing issues???omg??
I can blow up a car on 7 psi if I really want to. Lower boost levels aren't necessarily more "safe." If you want to play it "safe," don't modifiy the car.
