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Recently got FBO installed and tuned by a reputable shop. Mod list is as follows
-Kong ported 1.7
-2.3 upper
-NW 103MM
-CPR 5” CAI
-Kooks 2” Headers w/ offroad X
-CPR Expansion tank
- 18” hoosier drag radials
(No trans tune) A8
Car made 614whp / 698 Tq. I took the car to the track yesterday for the first time since I installed the mods and needless to say I was not impressed with the times. I actually ran slower than when the car was stock. I ran these exact times last year in the middle of summer heat with MORE mph. What do you guys think could be going on with it? Maybe the tune? Im sure some will say heat soak, but i did the same cool down procedure as when I was stock, which was let the car cool down for an hour between runs. Any help would be greatly appreciated!!! I am the right lane on these slips.
I havent datalogged but I kind of want to now, I want to find out how to do it, unless im crazy, i feel like with these numbers at the track something is not right. Unless I got a bad batch of gas
1) 93 and what might be a good amount of boost so I'm sure timing is low
2)no trans tune, you are over the limit and you absolutely need that trans tuned, I will put money on it the throttle body is closing up. If not than I bet the torque is lowered in the tune to keep it open which will **** off the trans fast.
If you logged it with hp tuners I could tell more.
I havent datalogged but I kind of want to now, I want to find out how to do it, unless im crazy, i feel like with these numbers at the track something is not right. Unless I got a bad batch of gas
It's not a bad idea to buy the HPtuners cable, if you are not going to make any changes to the tune yourself you don't need to buy the credits. I am assuming that if they did not tune the transmission that your car is a 2017 or newer.
It's not a bad idea to buy the HPtuners cable, if you are not going to make any changes to the tune yourself you don't need to buy the credits. I am assuming that if they did not tune the transmission that your car is a 2017 or newer.
Yep its a 2017. So to log it, is all I need the HP tuners cable?
1) 93 and what might be a good amount of boost so I'm sure timing is low
2)no trans tune, you are over the limit and you absolutely need that trans tuned, I will put money on it the throttle body is closing up. If not than I bet the torque is lowered in the tune to keep it open which will **** off the trans fast.
If you logged it with hp tuners I could tell more.
Well Ill definitely be logging it and posting up here. I thought it was odd that they told me I did not need a trans tune for boltons, but i went with it since im not the pro .
Well Ill definitely be logging it and posting up here. I thought it was odd that they told me I did not need a trans tune for boltons, but i went with it since im not the pro .
It may not be "needed", but it will certainly hinder performance if it isn't tuned. Also, as mentioned, you're leaving power on the table by sticking with pump gas. Notice how the Tq is way higher than the HP now, its pulling power up top whether purposely or not. Could be real low timing, or lack of fuel, being overly safe, and likely the trans is pulling some power unless they tricked the torque model into thinking its making less power.
Last edited by Internets_Ninja; 06-01-2019 at 12:22 PM.
its the trans tune. Its the way the cars work, the trans is the gatekeeper for power on the auto's. If it sees more power than its programmed, it has the authority to pull power.
Once your trans is tuned by a great tuner who knows what they are doing, your car will be night and day from what it is now, especially at launch and 1st and 2nd gear.
its the trans tune. Its the way the cars work, the trans is the gatekeeper for power on the auto's. If it sees more power than its programmed, it has the authority to pull power.
Once your trans is tuned by a great tuner who knows what they are doing, your car will be night and day from what it is now, especially at launch and 1st and 2nd gear.
Makes sense, because these numbers my car ran are not right. I emailed the shop so Ill see what they say but Now idk if should even have the shop who did everything tune my trans, or just find another tuner. I want to give them the benefit of the doubt, not sure if im just crazy, but the fact that I was told I did not need a trans tune and was not told that i was leaving alot on the table kind of makes me question them.
Once your trans is tuned by a great tuner who knows what they are doing, your car will be night and day from what it is now, especially at launch and 1st and 2nd gear.
The op is pulling a 1.53 60' at launch. Not sure he can launch any better than that with his hp. Looking at the time slip, he launches hard, then slows approaching 1/2 track and really falls off the last half of the run.
What was the DA where you ran? Also, did you use any race fuel or additives?
Same thing happened to me, I too thought my numbers were low but when I actually compared it to other cars after I ran it at the track, I don't feel as bad. The main problem for me was, I tuned it safe on 91 octane but then added a bunch of race fuel (MS 109). There was too much race fuel in my car and the engine did not have enough timing. It ran the same times yours did, except mine trapped 130 mph at 5800 ft of air.
Everything points to your fuel and the possibility that the computer having pulled a little timing. Next up for me, flex fuel sensor and retune on E35-40. That should put me right where I need to be until I add more mods.
06-01-2019, 09:20 AM
Unhappy with FBO results
