Neff,

I didn't see this thread before I PMd you about this issue.

RTs have worked well for me too, and they are prolly ok and will be ok for a long time, as I do care for them in the way you described. But they DID have a high failure rate that other cats did not, period (carsound-based cats and doug's - forgot the manufacturer of those). What I mean is that for TTs, I need as free-flowing exhaust as possible, and would like to just get pipes. In fact, I am selling my RTs if anyone is interested.

Gurgen

 

Steve, what are you gonna do with your SC setup? Feel like making a donation to the "Randy's really poor and could use a great deal" fund?

2 G or NOT 2 G, there is no question!

Injen SES, Kinetix cats, K&N Typhoon, 19" PIAA Super Rozza's (19x9 & 19x10)

 

Gurgen are your RT cat's resonated? Are they raspy and loud like the Helix? And are there any known prob's with them that you kind amentioned before? How much im interested!!


Martin
2003.5 BS G35
Nismo Aero/Sport Package
Injen CAI
B+G Springs
ADR M-Classic 19's..

 

Gurgen,
Do you think your car will pass smog check? Being in California, this is one thing I worry about whenever I add any engine/exhaust mod to my car.

 

With Cats, I am pretty sure it will, especially the stock cats which i will swap in for the inspection. The car runs at a stock-like (if not identical) a/f at idle. Not sure if that's the only parameter that would affect things (give ntaht I did not swap out cams or anything), but the a/f is definitely ok.

Of course with test pipes... well you can guess. But of course, I will only use test pipes for "testing" purposes, and only at the track!

Gurgen

 

yes i agree - the potential and the power (at such low psi) is great.

Also, heep in mind, to really take advantage of the midrange, you are gonna need at least 04.5 auto sedan or an auto coupe (or of courser MTs), b/c some of our crappy trannys (like mine) are simply top gear selectors and do not keep the selected gear!

G

 

Hey Guys

Did some Gtech runs last night after I found an exceptionally straight, smooth, and level road. Did a new best for this car in the 1/4 mile. I would appreciate any comments/suggestions that you may have for improving them.

Conditions: 12:00am-1:30am; 60-62 degF; tank ~ half full (~10gal)
Boost: ~4.3psi (0.3bar)
A/F ratio: 13.4-13.0 (2000-4700rpm) and 11.5-11.1 (4700-7000rpm).

Best Run (moderate brake torqueing):
1/4mi: 13.196 sec @106.00
60': 2.109
0-60: 4.996
0-100: 11.927

Another run (moderate brake torqueing):
1/4mi: 13.257 sec @106.49
60': 2.152
0-60: 5.091
0-100: 11.852

Another run (no brake torqueing):
1/4mi: 13.328 sec @104.73
60': 2.146
0-60: 5.133
0-100: 12.441

Slowest run (NO brake torqueing):
1/4mi: 13.426 sec @104.08
60': 2.093
0-60: 5.261
0-100: 12.639

Obviously a good launch means everything. And really cannot launch at anything over ~2200 rpm as I just burn out the tires through the rpm band. I belive that with wider/better tires, better times are to be had at this same boost level.

I was a little worried about the lean a/f and it's drastic drop at 4700rpm, but not too worried as my timing is retarded 4-8 degrees. I took care of that issue this afternoon with a reflash (the a/f, the timing was left untouched - still wanna be a little safe).

TC swap: these are the new, post-TC swap numbers. I am not sure i noticed THAT much of a difference, but it seem as though I can brake-torque this one to about 2800-2900rpm - weird!!!!! I really cannot tell the difference, it may all be in my head. I do not see much improvement from driving the car the same way (see the last two runs).

Thanks
Gurgen

 

Man Gurgen you're making me want this PE TT kit or even any TT kit for my car, damm!!!! Those number's are sick, and you're not even fully tuned and at only 4.3 psi of BOOST!??! Man, can you buy me one please?? Martin


Martin
2003.5 BS G35
Nismo Aero/Sport Package
Injen CAI
B+G Springs
ADR M-Classic 19's..

 

Could you possibly post your GTP file (I just got my G-Tech pro comp today) so that I have something to aim for and compare against, can't wait for my Stillen SC over the next 3 weeks ... going to do a baseline dyno tomorrow and then I'll dyno again after the install.

Anyways, PE TT looking good, can't wait for the fully tuned version ...


G35c 6MT - Pearl white, front / rear spoiler, 35% tint.
19" Racing Hart GT5, 245/35/19, 275/35/19
Stillen intake, s/charger, cat back exhaust (est. 400hp)

 

k. i will shoot it to your email

 

Damn gurgen, those are some great numbers for only running 4.3 lbs of boost. You should be in the low 12's easily after you get everything settled. Have you ever looked into the possibility of making your auto a true manumatic instead of just a top gear selector? That would drive me absolutely nutts especially with a FI setup on my car. Oh yeah, next time get a stick.... ;-D j/k I'm only kidding, no flames please.

04' G35S 6MT Ivory Pearl, Willow, Premium
Z-Tube / NFC Y-Pipe / Custom Mid-Pipe / 350 EVO Rear Sway

 

<blockquote><font class="small">In reply to:</font><hr>

Oh yeah, next time get a stick.... ;-D j/k I'm only kidding, no flames please.

<hr></blockquote>
I am having those impure thoughts as well. LOL Actually... never mind, just gonna drop it for now...

I really hope you are correct on the time

 

Speakin' of transmissions. . .
Have you done anything special to yours? I thought that our autos can only handly ~330 ft-lbs of torque before they break. I would love to boost the snot outa my engine, but I'm more concerned with the auto tranny. . .

-drew-

 

Drew

I'd be real curious to learn who told you that/where you got that fact from.

The following is only logical, that the very same tranny that is used on the FX45 and the q45 (both at about 350crank hp) will have the usual/significant amount of a safety margin; i.e. they are overengineered.

Also, remember that the clutchpacks on the AT are wet clutches, not dry, so they cannot be compared directly (with respect to size).