Thumbs Up for Callaway "Honker"

[dougatl]

Just got my 06 Z06 tuned and had the new Callaway Honker intake installed. Saw an increase of 48HP at the wheels at an increase of 45 TQ, pretty happy w/the results for sure.

dougatl

2006 Black Z06 2lz
Callaway Honker Intake
Tuning by MTI Racing Atlanta

Previous Vettes
02 Z06 Black/Black
00 Hardtop Pewter

http://home.earthlink.net/~dougatl/

[PerforminNorman]

Awesome, what are your actual numbers. Inquiring small mind wants to know.

[z060606]

Those are the best results I have seen with just an intake and a tune. Sounds a little high. What were the before and after numbers?

[dougatl]

Most Z's I've seen have baselined around 440 HP with the hood up, definitly lose a little in real world conditions, hood down, 200 degree coolant temp, no fans blowing on the engine etc.
Baseline for me yesterday was 441HP and 416 TQ with the hood open, 418HP and 394 TQ with the hood closed.

After the tune and honker, hood closed, we got 466HP and 437 TQ, nice increase and definite spike in the "sotp" gauge

doug

[jeffareid]

Do any of these dyno shops have fans to simulate 60mph or so? I had the impression that a CAI wouldn't do much at speed because the air doesn't have enough time to heat up much.

[bjaber]

Impressive...

[Lankhoss]

Originally Posted by jeffareid

Do any of these dyno shops have fans to simulate 60mph or so? I had the impression that a CAI wouldn't do much at speed because the air doesn't have enough time to heat up much.

Good question!

[phantasms]

I don't care how many dyno's test it.

I REFUSE to believe that the car loses that much power with the hood closed.

Put it in a wind tunnel on a dyno then tell me what it reads.

[Pakisho]

Those are strange results.

[dougatl]

Got no horse in this race, just posting the data and what the tuner (MTI Racing Atlanta) has proof of.
In a nutshell, their data illustrates the differences in airflow and how it effects ouput. With the motor hot and with the hood closed there is significant loss of power as much as 18 RWHP.
Several runs on my 06 Z spoke to that point as stated in the earlier post.
The new Callaway Honker intake system eliminates the problem of such a loss.
Max HP following the tune and the honker was 466.2 with the hood closed and 467.1 with the hood open. The difference in the TQ numbers was also minimal, 437.7 hood down, 437.9 hood up.
The numbers before the tune and honker, baseline dynos on the stock vehicle were dramatically different, much better numbers with the hood open, letting all that engine heat out and not trapped inside the compartment. The dyno is a Dynojet 248 chassis dyno. MTI did the dyno testing on the new Honker for Callaway.

doug

[PerforminNorman]

My car put down the same numbers as your without any mods. It's strange how different these beasts can be.

[Z06phile]

Originally Posted by phantasms

I don't care how many dyno's test it.

I REFUSE to believe that the car loses that much power with the hood closed.

Put it in a wind tunnel on a dyno then tell me what it reads.

I dunno... the ECM or PCM or whatever they're called now could be pulling lots of timing when IAT sensor heats up. Figure that in with the typical 1%-2% HP loss for every 7 degrees increase in air temp and big losses are possible.

Thank goodness for CAI!

[355Spider]

Does it surge like the other????

[dougatl]

Set the cruise control at 70 and got no surge whatsoever. Tested at 55, 60 and 65 as well for a minute or so and it was smooth sailing. Have no evidence at all that the Honker is responsible or just the fact that it was tuned well.

doug

[Lankhoss]

Originally Posted by PerforminNorman

My car put down the same numbers as your without any mods. It's strange how different these beasts can be.

My car put down 460/430 stock as well. However, I think MTI tested the car at full operating temperature (200 degrees coolant, I think).

My first pull on the dyno was something like 435/397 or around there. It wasn't until after my car sat for a while and cooled off that it dyno'd 460.