Went to the drag strip today...
Got to test out these Nitto 555R2's. 305/35R20
Temperature Range: 45-50 degrees F DA Range: -280 to 300 |
^^^ Sounds very nice! :)
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Hmm, no feedback yet on the runs? IMO a 1.86 short time on drag radials, with ECM/TCM tune and quite a bit more hp than stock, was quite noticeably slower than I'd expect. Did not sound like you spun to get that 60? Not sure what is happening, but I would suggest trying launch from idle next time, and see if it's any better.
Since you were data logging, you probably already know this, but your current TCM tune had the WOT shifts at too low an rpm for best performance. Looking at your 11.6 run, the shift was way too early for the 1>2, too early for the 2>3, and still a little early for the 3>4 and 4>5. Your dyno chart had peak hp around 6200, and therefore, you could try for about 6700 for your shifts and see what it does. This is drag racer knowledge for many years, shifting around 500rpm after the hp peak for best performance. Might want even more than 6700 in this thing to be honest, but that would be a decent start IMO. |
I know the btr cam is going to lose a little torque down low from a stock cam but it kind of seems like torque management is still limiting torque on the initial hit, shift rpm does seem low as well. The Mustang dyno numbers don’t really match the et and mph imo. Why such cold spark plugs? Those are what I run on my turbo setup now. My car is lighter being an LT1 vs a 2SS and I am on a drag pack front and rear but my car went a lot quicker and faster with less. https://youtu.be/lUEOPs5Qzxw?si=lE2jJS6y9ovm4E79
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Going this coming Sunday, will try again see if anything changes. |
@wnta1ss and @jlaudio11
Please don't take what I said as me making excuses or being angry or retaliatory. I appreciate the advice when given. I am just not experienced enough to discount anything anyone says is the way I look at it. I've just been talking to laynlow15 a lot about my car so he knows more about what is going on with it than anyone on here, and he has said the same things you guys have said. So it is at least common consensus that I should be faster but for some reason I am not. Just haven't figured out if I am the problem, or if its the car yet. I assume its not the car its me, because I just don't know that much about drag performance other than numbers I see. I assume its a me problem, unless one of you guys suggest there might be some play left in the car still. And what I can do to remedy the issue either way. |
Atleast you have the right attitude about it all. With launching, what worked the best for me and what you saw in those videos was holding rpms up around 900-1000 rpm and then smashing it. You’ll get some flash out of the converter like launching from idle, I just felt like there was a little bit of a delay that cost et going from absolute idle. See what your tuner thinks but there are others of us here that could look at your log and give feedback. That can get tricky where you’re almost questioning your tuner and everybody will have different possible suggestions, it could get messy basically.
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As far as the cam giving a softer leave, I have seen video of a Stage 3 cam going 1.72 short on the stock SS A10 torque converter. Since your Stage 1 *should* have less of a torque loss way down low than a Stage 3, I would think that yours should be a little bit snappier at the hit than his was? |
ran a 11.85 @117 on run flats last summer @ Milan run flats LT2 intake some bolt on's tune E85. wheel slip all the way down the track
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My tuner said he locks the tune, so I wouldn't be able to see the trans tuning he did. And I don't know enough about HP Tuners to dabble much beyond changing tire size. 1.86 is the best 60ft I've had thus far, before the cam and rebuild I was at 1.91+ I am trying to keep myself somewhat grounded and figure that even though some people see 0.5 sec off their times with drag radials that what works for one person can be different for another. I was expecting a 11.7 which I got, and last time at the drag strip some indication of consistency since I ran a 11.7 and 11.67 back to back. I figure the rest is me being inexperienced trying different things to drop the number more. I think it might rain tomorrow so I wont' be able to try new things tomorrow but maybe next wednesday I'll get the chance. I also just got the front tires replaced, so no indications of TC, ABS or Power steering issues now. Yet. |
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I do have his tune file on hand, as it is currently on my car.
I can open it in HP tuners, but he said I wouldn't be able to see the trans tuning. This is all I see under Transmission https://i.imgur.com/vSfYGhQ.png This is what I see under Torque Management https://i.imgur.com/yk0e8AA.png I do find this interesting though: I believe I have a 4 degree variable cam? But it looks like it is set to 2 degrees? The only time I went to the tuner was drivability at low speed was rough and the engine would stall out at like stop lights or if I was in a gas station and/or parking lot. So I am not sure if that has any relevance here? https://i.imgur.com/8anUuWE.png |
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