1/8th mile function check

[JgamB]

I made some minor changes to my exhaust and wanted to verify the 22whp increase Vdyno was indicating was legit, so I hit the local 1/8th mile for some mass / distance / velocity calculations to check the dubious results. The butt dyno agreed, but my ass isn't that well attenuated.



It was a horrible pass with plenty of wheel hop, a solid .2s behind my normal launch. The air station was down so I didn't have my Airlift bags to help, I didn't deflate the tires at all, and I was using a RMM that will be coming off the car ASAP. Full interior, subwoofer still in the hatch, I wanted a "daily driver" test of power. This is 386whp at a minimum, not shabby at all for a BNR S3 and 25% E85. The car is out of fuel. Meth coming soon, and slicks to snag my 11s time slip, hopefully before everyone starts busting 10s.

I share this because I think the Beener is an amazing bang for the buck, and to tell @rodrigo; to stick it for making fun of my 87mph pass last year on TMIC. I made *one* pass and left, this is not an indication of a good ET, I'm well aware.

[SpencerC]

Originally Posted by JgamB I made some minor changes to my exhaust

What all did the minor changes entail?

[Gr8Speed]

Was the RMM the Nate Hamburglar Swiss Cheese mount?

[JgamB]

Originally Posted by Spencer@CorkSport What all did the minor changes entail?

I bought the Beener - a weird rattling noise was coming from somewhere and it sounded like the upper DP catalyst, which made sense because I had pounded the crap out of it with a sledge hammer taking the angle iron mount off of it (it was the IWG flap / recall issue for the first batch of V2s), so I reamed it out with a pry bar. Obviously the rattling persisted, and I had been tuned for 1 cat, so I put the OEM catted test pipe back on the car.

I then bought an ATP long catless. Obviously my cobbled OEM setup wasn't flowing very well, because it wasn't just peak power - my spool was much more immediate also.

Austin the RMM is the CPE Stg2. Axle hop was atrocious at the strip, and I'd missed 2-3 FFS a few times playing on the street. I'm not a fan.

[Gr8Speed]

Originally Posted by JgamB Austin the RMM is the CPE Stg2. Axle hop was atrocious at the strip, and I'd missed 2-3 FFS a few times playing on the street. I'm not a fan.

Odd. Although I've never owned one, I thought those were supposed to be the cream of the crop.

[JgamB]

Here's video of the run. Not at all pleased with the axle hop - you can see I had to lift pretty hard before I could get rolling in 2nd gear and shit calmed down. This was a spur of the moment zero prep buzz by the drag strip, 1900 DA, I was just wanting proof of power.

MazdaSpeed Forums Presents: YouTube

MazdaSpeed Forums Presents: YouTube

[Gr8Speed]

Originally Posted by JgamB Here's video of the run. Not at all pleased with the axle hop - you can see I had to lift pretty hard before I could get rolling in 2nd gear and shit calmed down. This was a spur of the moment zero prep buzz by the drag strip, 1900 DA, I was just wanting proof of power. http://www.youtube.com/watch?v=xa7sBNUnORk

That shit is violent.

[JgamB]

Originally Posted by Gr8Speed Odd. Although I've never owned one, I thought those were supposed to be the cream of the crop.

Precisely why I bought one to compare. It's fine for mildly aggressive driving IMO and it does have a bit less NVH than some of the more locked in mounts, but for the track, nope. DM going back in and this experiment is getting resold.

[rodrigo]

if u dont get an 11.x with that i am going to rape u on fb every day until u do .....

thats actually solid mph and its sure to go up in the 8th on 5-7k clutch drops

[JgamB]

Originally Posted by rodrigo if u dont get an 11.x with that i am going to rape u on fb every day until u do ..... thats actually solid mph and its sure to go up in the 8th on 5-7k clutch drops

Lol I'll let you know when I get the slicks - I'll rape myself if I can't deliver an 11s pass.