Thats a reference to an old song and what a song this thing can sing, here is the data to back up the stories.

My SRT has an exhaust modification that cuts lots of weight 20#+ and removes gobs of back pressure. The intake has been gasket matched and a set of LET 1/8" phenolic spacers, and topped off with a needswings intake. I have yet to measure the restriction of the K&N filter, more on that later.

Just got back from the dyno and have the sheets to show the results. Other than a phantom grip there are NO other mods to the car and its still on factory plugs. I will install the 181 pully and H/E soon to get a comparison. SO HERE GOES: I got over 320 HP at the rear wheels on a mustang dyno that Iam told is one of the more conservative ones out there, I was told 7% low readings. I DO NOT SUBSCRIBE TO THAT NOR DO I CLAIM THAT AS I WAS SHOCKED BY THE NUMBERS SO THE SHEETS ARE INCLUDED IN THE ATTACHED PHOTOS. There are interesting numbers for the 0-60 and the 60 foot times ( 1.90s ) plus the 1/8th to review.

From a good roll I can break loose the rear tires and shifting into second the rears get pulled loose also. Lots of torque here. My readings of the G meter is from a strip to see what I could do on street tires, you can see the temperature. The photo is with the key on but parked in the garage, be safe and sane out there please.

Hope this is informative and of use to the general forum. Ill get another run on the same dyno in a couple of months when the Mercedes club has another go at it. Till then enjoy, Woody

Whoopse I also got them to monitor the boost as shown in the second chart(s) and the tire shot is whats pushing this toy. Woody

 

That's an incredible 0-60. I'd love to be able to do that. What do you mean by "gasket matched?"

Edited: Nice cats.

 

thats and awesome 0-60 time holy holy! I like what I see but really it doesnt surprise me these things move!

 

Gasket matched - intake (and/or heads) have material removed to match the cutouts in the gaskets. This way the intake, heads, gasket all have exactly the same sized openings.
Can greatly improve air flow.

 

Crap. Extra material? That just flew over my head. You wouldn't happen to have any pics, would you?

 

Are those the two "cats" you took off the exhaust?

 

Here is a pic. The opening in this case was marked with a blue dye or marker. The gasket was aligned and the gasket opening was scribed on to the head (or intake) You can see the scribed circle, slightly larger than the cast port.
To the right you see the "extra material" being removed so the port is enlarged to "gasket matched" proportions.

Basically you are matching the ports from the intake, through the gasket, and then to the head. This will give a smooth port transition.

 

I like those #s too.I may do that intake trimming too.What kind of exhaust did you do?

 

Great numbers!

Shouldn't have mentioned the exhaust, you'll now get inundated by requests for video/ sound clip and pictures. Let me be the first... Any chance you have a sound clip?

 

The 60' times and the great 0-60 times are in large part the result of the Phantom grip LSD that causes both wheels to pull. With the traction control off you get more power to the ground and the computer does not cut the throttle signal or apply the ABS system to limit wheel spin. You are not pushing both rear axles and can not really take benefit of the torque available.

The muffler is a simple stainless 4" wye pipe that retains all of the cats {ha ha not Nick or Natasha } and the resonator. That had lots of internal stuff and weighed a ton. I like the sound and it feels like it pulls better after cutting it. You can cut yours and add a straight pipe to see if you like it and reinstall it with a compression clamp if your not thrilled with the result and sound.

The porting was described in the forum under the name
woody woodworth as "Polishing and gasket matching part 1; - 4" Hope it is of value. BTW the underlap like the photo above 70gt6[ I believe ] is about 1/8 inch all way around and that is BAD cause it is turbulent to the max, disrupts the orderly air flow. THe fix is easy and takes several hours to complete, check it out.

You have to check my gallery to see other photos as I can not figure out how to imbed a link to the actual post. Anyone know what is the key to doing that, Thanks in advance. W
Enjoy, Woody.