That could explain it, you should just run out 4th.

 

We've already determined that SAC has a faulty lane. One lane reads way low on the trap speed compared to the other lane, but the ETs are consistent between the two. He was probably in the messed up lane, so the MPH is not right, but the ET is probably legit. The launch is nothing special, so he probably is trapping 115 or so.

 

what boost are you running at..because in the dead heat without cams 85 degree heat/47 percent humidity....with (ic...tbe...licp...fuel pump.....ebc...forge bov....supporting mods i hit a 13.1@106.49 with boost @24.5lbs with a 94oct mix...noneoftheless...the 1 2 3 shift is awesome...**** my 330 ft was a 5.45

 

Thanks for the input Warrtalon and everyone else. I ran my first two runs in the left lane where I hit the 11.978 (110.1) and the 12.095 (111.6). I ran in both lanes and only got to 12.2@114mph but a bad 60ft of 1.85. I thought i had the boost up to 26lbs. but it was spiking to 24lbs. then tapering to 22lbs. I then later turned the boost up to 26lbs. spike holding around 23lbs. to 24lbs. and my mph went to 113-114mph at the end of the day.

 

The boost was already at 26psi if you were seeing 24 on the track, because you're never below 5500rpm, which is well into the taper. People often make this mistake of thinking their boost is not as high as they thought, then they turn it up to erase the difference. This is dangerous, because you're raising your boost much higher than you were tuned for (usually)...

 

Thanks your right about that it's just really hard to read the stock MR Boost gauge. It only goes to 1.5 bar which is about 21.9 or 22lbs. So Warrtalon what have you been doing as for as racing auto X and Drags; did you break 11's yet bro. Always appreciative for your feed back.

 

Yes that's true....Sac raceway is where i frequent the most most currently my 2 other 03 Cobra that i sold recently.

Most people tend to say the RT lane reads a bit high

There is still some debate to the validity of one of my passes in my KB Cobra that went 10.85 @ 137mph 1.51 60ft. in the RT lane.

Based on what other Cobras run nation wide it could be off by 3mph but i never had a chance to back it up before i sold it

 

I ran both of my runs in the left lane and then ran my last two in the right lane. My 11.97@110 and 12.0@111 in the left and 12.2@114 in the right. I don't know but I hit 11.97 in my 05 MR. Now if I would of ran my first and second gear to higher RPM's I probably wouldn't haven't too shift into fifth. Which may have been a faster time. We will see next time.

 

1st and 2nd gear have no effect on shifting to 5th or not - it's just 4th gear.

Anyway, no, I hit my 12.000 at sea level with basically the same mods as you but with a base flash and similar octane but it was a mix of 110/93. My boost was 24psi on the street but only saw 22psi max on the track. I moved to 6000' altitude that Winter, so I haven't done a sea level run since then. Even with a lot more mods, I've only hit 12.3 up here, because altitude robbed me of 60-70whp at 7k rpm. Instead, I've been focusing on road racing and autocrossing. I'll be doing SCCA auto-x nationals next month.

 

6spd killed his trap. shift to 5th idgets

 

No, 6spd didn't kill his trip, and he did shift to 5th. Staying in 4th can do high-teen traps no problem.

 

Chris Wilch Reno, NV 94 Eagle Talon 12.950 136.26 <--- omg?

 

Thanks Warrtalon I just appreciate all that you give to us on here. Awesome can't wait to see your auto X runs. Yeah was was just afraid to hit the rev limiter before I passed the line. I was an idiot for doing it but its a learning process. Oh well just going to have to try it again. Thanks Warrtalon for the update.