Gernby

iTrader: (1)

I can't figure out how you built an exhaust with a Y-pipe AND an X-pipe. I guess I could see 2 Y-pipes and an X-pipe, but I wouldn't understand why you would want that.

Hameed

Scroll down to the middle of this page https://www.clublexus.com/forums/sho...=74059&page=46 and read my write-up with pics and it will make perfect sense.

uschardcor

is just an x pipe. not a y to an x.

Gernby

iTrader: (1)

Which post number? I couldn't find a single instance of "Y pipe" on that page.

Hameed

You're right, my terminology was wrong.

The reason why I called it a Y-pipe was because the OEM setup for that section before the X-pipe was in fact a Y-pipe.

CoasterG

iTrader: (1)

Still trying to get my recording equipment back - sigh.

An update - its broken in really well since I've been doing a lot of driving and the tone has gotten better. The droning at maintained high speed has reduced to a significant extent.

Went to the track last night, finally broke 14 with a 13.99 run in 88 degree heat. Car is much more consistent (or maybe its the driver), my runs were 14.05, 14.09, 14.002 then 13.99. Setup is with Borla Exhaust, JoeZ pipe, Blitz filter and my IS350 is fairly weighted down - I weigh 315 lbs currently due to being on bed rest/light duty for 3 months, 1/2 tank of gas and the spare still being in.

I'm fairly sure if I can get runs at a lower temp I'll have good time improvement, not to mention losing some weight! But I live in Florida so 80-90 degree track temps if not higher later in the summer are the norm. Going to be in Atlanta in May, hopefully it'll be cooler and I can get some runs in the 60-70 degree range.

I'm happy that I have a 13 second car now though hehe.

caymandive

iTrader: (2)

Congrats CoasterG! I would say with all the negative factors in your race and still hit a 13 second is commendable.

IS_Mine

What were your trap speeds?

combfilter

iTrader: (3)

Coaster, does the camera you took the pictures of your exhaust with not have a video mode too? That is what i used to record all my exhaust clips and it comes out fine. Google and youtube compress the hell out of it anyways.

CoasterG

iTrader: (1)

Ok these are the time slips from the track on 04/27, my car is the 5499 car:

The 13.99 run:


2 more runs:


My 60' times are 2.174, 2.169, 2.121, which aren't bad.

No real kills, for 2 of the runs I was against my buddy with his Grand National but he was having major issues with a new chip and injectors he just installed. Other runs weren't against any cars of note. Wish I could've gotten runs against the 2 BMWs that were there, one was a 330i that was running low 14s and the other was a debadged coupe from the newer design, looked a lot like a 335i coupe but wasn't running like one (low 14s).

And I'll take my digital camera and see how well it does with the audio for the exhaust - I know from prior experience I haven't been too happy with how the audio comes out from it but we'll see.

Gernby

iTrader: (1)

I'm really curious why your times and trap speeds are so bad. Do you know what the barometric pressure was?

caymandive

iTrader: (2)

The barometric pressure for his 9pm runs were 30.05. The worst part was the density altitude was an awful 1803ft.

CoasterG

iTrader: (1)

Its Florida, it was 88 degrees for most of the evening and we had slight rain so it was very humid.

Thanks for the barometric pressure info Caymandive.

Also remember I'm running about 135 lbs more than your average driver (315 vs 180 or less).

Plus the track conditions at OSW are fairly crappy but its the closest track.

caymandive

iTrader: (2)

Like I said in my PM to you, any time in the 13 second range, esp with those crappy weather conditions and the extra weight is worth respect. Keep reppin the IS350 at the track man.

caymandive

iTrader: (2)

I just posted a link to a video I took today of waynetech2's Borla exhaust.

https://www.clublexus.com/forums/sho...04#post2602304