s14sr20det with retarded timing and 60mm hks exhaust

[usdm_180sx]

What’s up everyone. I just test drove my s14 with the s14sr in it. A few things to note: It still has my HKS Hi Power ka exhaust with 60mm piping. It has the stock side-mount i/c, an HKS DD filter and a Tomei 255lph fuel pump. Klay at Motorex also set the timing back to “break in” the engine. With that in mind, it felt like a strong engine and it was very smooth all the way to 7000rpm. It also felt “restricted” and a bit sluggish, though. I will be getting a gp sports spec R stainless exhaust with 80mm piping this week. Do you think adjusting the timing and changing the exhaust will make a big difference? Thanks!

[MainEvent212]

felt sluggish?

after i got my S13 sr in and drove it i thought i was gonna pee my pants...

then again i went straight out of hte box w/ 12 lbs of boost and a big FMIC...lol

[Phax]

As I was reading your post and saw 60mm piping, I thought to myself, "That's gotta be choking the flow a little."

You will notice a significant boost in performance once you get a larger exhaust, and increase the timing.

[usdm_180sx]

It's running stock boost @ 7psi too

[hokiruu]

The new exhaust, dialed timing, and raised boost, you'll feel like everything moves in slow motion when you get out of the car.