True....I am not much of a road racer, so I generally speak of straight line, whic is what I was referring to....sorry for the confusion.
I love your car though.
backpressure creates a vacuum....and wha tI have heard about open headers allow heat to travel back into the ports which can ruin the valves...now whether or not that is true, I don't know....but it's better than chancing it.
Get the cobra. Better car all around and NOS is just too violent IMO for a power adder.
The 450# you see is a tough one...450 is pushing the limits of the stock 96-98 internals. I would bet you could safely see 415-430.
Here is what I would do...
full exhaust
SCT
390's or 410's...
That sounds right with the boost....13.5. And you will see a spike with the initial hit, but as with all heatons, it bleeds off.
Almost always you will be above 12 at the start of the pull and drop off with the rpm. An ideal curve will drop to about 11.9 and stay pretty much on that line...
I gained 2 rwhp with them.
They are pointless for cars under 600 rwhp....maybe 5-10 hp max. My buddy gained almost 30 with his KB. Which is why I did the headers....for future mods. And yes they are a pain to install.
11.5 is rich. I bet if you take it up to 11.8-11.9, you will see...
QFT
Here are my total mods with my tune specs.
Steg St 3
Metco 2.8
Billetflow 100 mm
JLT CAI
MAC LT's
Catless midpipe
MAC 3" cat back
Billetflow IRS brace
LFP Coolant Mod
SCT Raptor chip and tune
11.8 a/f
16* timing on 91 octane- 474/460
19* timing on 93 octane- 491/477
LOL....yeah, I meant boost bypass.
If it said bypassed, then it was probably done with the tune. Doing it manually then serves no purpose.
When I went ported, I was 464/480 prior and 491/477 after, but I don't have a lower, so I lost a few ft lb.
stay below 12.0...above is risking it.
Your power is good, but your torque is low because you aren't utilizing the torque by not having a lower....plus, do you have your torque bypass disabled?
And .30 is way too tight...I would do .32-.35 max.
Ok...not sure what it is, but I am hoping other people have experienced it.
03 Cobra....at low RPM's (1500-2200) under normal driving at sustained speed my car bucks at a evenly paced pulsing, but not violend fasion. Almost like I am driging down a road with waves in it. I would say it is...
+1, but I would add that the CAI looks cleaner and provides a better air charge....
The RAI will feed more engine air (hot) versus the cooler charge from the fender.
But, as a customer of JLT, the CAI is a P.I.A. to install.