[rlarsen462]

So the ZLE is the first high HP RWD car I've ever taken to a drag strip, so my launching was pretty much horrible all night. Trying to figure out if these numbers at least seem like the car is making the correct HP.

Bandimere Speedway is at 5800ft above sea level so the DA's this time of year are usually 6500-7000, I don't know the exact figure for yesterday afternoon though.

Only mods are a Rotofab wet filter and a Weapon-X ported TB. Also ADM intercooler reservoir but doubt that makes any difference.

I did not pull the battery cable before going to the track.

Before my last run I finally dropped my rear tires all the way down to about 23-24psi, I didn't feel like putting the stock wheels/tires back on so I ran my Michelin PS4S's too.

Here's my best run:

60' - 2.196 (believe it or not this was the best of the night...)
330 - 5.554
1/8 - 8.270
1/8 MPH - 90.29
1000 - 10.582

ET - 12.529
MPH - 116.48

So obviously I need to launch better. I was using the no lift shift and this run was clean on shifts. Still fought some wheelspin then bog using the launch control at 3700RPM & 10% slip target.

I know the aero also makes the ZLE slower in the 1/4 since it's not a drag car, but does this seem about in line with a car making correct near factory power levels?

Thanks for any advice on driving the damn thing too, I would like to take it again before I take it to the road course just because the strip is literally like 2 minutes from my house.

EDIT: Forgot to mention, I ran in Track Mode with PTM Race engaged (double press traction control button and scroll down to Race)...should I have run with the long press EVERYTHING completely off?

[RobbyBeefcake87]

That mph seems low for a ZLE I'm.

[rlarsen462]

Originally Posted by RobbyBeefcake87

That mph seems low for a ZLE I'm.

Thought so too, so I looked at this calculator:

https://www.ajdesigner.com/fl_horsep...trap_speed.php

Using a weight of 3883lbs, I got ~480RWHP calculated.

From what I could find, these cars dyno stock in the 500-580RWHP range.

If we assume the high end 580RWHP then 480RWHP would be 17.2% reduction, at 7000ft DA puts it about 2.5% HP loss per 1000ft DA.

Does this still seem way off?

Note that I did not turn the nannies completely off, I was in Track/PTM Race. I also didn't reset the battery.

[wnta1ss]

I think your 3883 weight is just the car? You need to use the actual race weight with driver in your calcs.

5800' ASL is going to slow it down, even having the supercharger.

[rlarsen462]

Originally Posted by wnta1ss

I think your 3883 weight is just the car? You need to use the actual race weight with driver in your calcs.

5800' ASL is going to slow it down, even having the supercharger.

Oh yeah good point. I had nearly a full tank of gas and my fat ass in the car so it was probably over 4100-4200 lbs.

Re-ran it at 4200lbs and got 511HP which seems a little more reasonable.